Java通过JFreeChart实现(饼图、柱状图、层叠柱状图、折线图、散点图、雷达图、环形图、仪表盘图、XY图)生成图片和下载
2024-06-02 07:23:49
目录
1、添加依赖
2、工具类
2.1 JFreeChart工具类
2.2 GenerateChartUtil 图表生成工具类
2.3 GeneratePieChartUtil 饼图生成工具类
3、生成图片到本地测试代码类
3.1 生成饼图
3.1.1 调用方法
3.1.2 生成图片效果
3.2 生成3D饼图
3.2.1 调用方法
3.2.2 生成图片效果
3.3 生成柱状图
3.3.1 调用方法
3.3.2 生成图片效果
3.4 生成折线图
3.4.1 调用方法
3.4.2 生成图片效果
3.5 生成层叠柱状图
3.5.1 调用方法
3.5.2 生成图片效果
3.6 生成散点图
3.6.1 调用方法
3.6.2 生成图片效果
3.7 雷达图
3.7.1 调用方法
3.7.2 生成图片效果
3.8 环形图
3.8.1 调用方法
3.8.2生成图片效果 编辑
3.9 仪表盘
3.9.1 调用方法
3.9.2 生成图片效果
4、项目实际使用
4.1 折线图下载
4.2 散点图下载
4.3 堆叠柱状图下载
4.4 柱状图下载
4.5 饼图下载
5、参考文章
1、添加依赖
<!-- Hutool工具包 -->
<dependency><groupId>cn.hutool</groupId><artifactId>hutool-all</artifactId><version>5.6.2</version>
</dependency>
<!-- JFreeChart图表库 -->
<dependency><groupId>org.jfree</groupId><artifactId>jfreechart</artifactId><version>1.5.3</version>
</dependency>2、工具类
2.1 JFreeChart工具类
package com.shucha.deveiface.biz.utils;/*** @author tqf* @Description JFreeChart工具类* @Version 1.0* @since 2022-06-07 09:40*/
import cn.hutool.core.util.StrUtil;
import org.jfree.chart.*;
import org.jfree.chart.axis.ValueAxis;
import org.jfree.chart.labels.*;
import org.jfree.chart.plot.*;
import org.jfree.chart.renderer.category.*;
import org.jfree.chart.renderer.xy.XYLineAndShapeRenderer;
import org.jfree.chart.ui.*;
import org.jfree.data.category.DefaultCategoryDataset;
import org.jfree.data.general.DefaultPieDataset;
import org.springframework.core.io.ClassPathResource;import java.awt.*;
import java.io.File;
import java.io.IOException;
import java.text.NumberFormat;
import java.util.List;public class JFreeChartUtil {public static String NO_DATA_MSG = "数据加载失败";/*** 生成主题* @param fontName 字体名称（默认为宋体）* @return*/public static StandardChartTheme createChartTheme(String fontName) throws Exception {StandardChartTheme theme = new StandardChartTheme("unicode") {public void apply(JFreeChart chart) {chart.getRenderingHints().put(RenderingHints.KEY_TEXT_ANTIALIASING,RenderingHints.VALUE_TEXT_ANTIALIAS_OFF);super.apply(chart);}};theme.setExtraLargeFont(getDefaultFont(Font.PLAIN, 20f));theme.setLargeFont(getDefaultFont(Font.PLAIN, 14f));theme.setRegularFont(getDefaultFont(Font.PLAIN, 12f));theme.setSmallFont(getDefaultFont(Font.PLAIN, 10f));return theme;}/*** 获取默认字体* @param style* @param size 字体大小* @return* @throws Exception*/public static Font getDefaultFont(int style, Float size) throws Exception {//如 果不使用Font,中文将显示不出来Font font = new Font("新宋体", Font.BOLD, 15);return font;}/*** 创建饼图数据集合* @param legendNameList 图例名称列表* @param dataList 数据列表* @return*/public static DefaultPieDataset createDefaultPieDataset(List<String> legendNameList, List<Object> dataList) {DefaultPieDataset dataset = new DefaultPieDataset();//图例名称列表或数据列表为空if (legendNameList == null || legendNameList.size() <= 0 || dataList == null || dataList.size() <= 0) {return dataset;}for (int i = 0; i < legendNameList.size() && legendNameList.size() == dataList.size(); i++) {String value = dataList.get(i).toString();dataset.setValue(legendNameList.get(i), Double.valueOf(value));}return dataset;}/*** 设置饼状图渲染*/public static void setPieRender(Plot plot) {plot.setNoDataMessage(NO_DATA_MSG);plot.setInsets(new RectangleInsets(10, 10, 5, 10));PiePlot piePlot = (PiePlot) plot;piePlot.setInsets(new RectangleInsets(0, 0, 0, 0));piePlot.setCircular(true);// 圆形// 简单标签piePlot.setLabelGap(0.01);piePlot.setInteriorGap(0.05D);// 图例形状piePlot.setLegendItemShape(new Rectangle(10, 10));piePlot.setIgnoreNullValues(true);// 去掉标签背景色piePlot.setLabelBackgroundPaint(null);//去掉图表背景颜色piePlot.setBackgroundPaint(null);// 去掉阴影piePlot.setLabelShadowPaint(null);// 去掉边框piePlot.setLabelOutlinePaint(null);piePlot.setShadowPaint(null);// 显示标签数据piePlot.setLabelGenerator(new StandardPieSectionLabelGenerator("{0}:{2}"));}/*** 创建类别数据集合(柱形图、折线图)* @param legendNameList 图例名称列表* @param xAxisNameList x轴名称列表* @param dataList 数据列表* @return*/public static DefaultCategoryDataset createDefaultCategoryDataset(List<String> legendNameList, List<String> xAxisNameList, List<List<Object>> dataList) {DefaultCategoryDataset dataset = new DefaultCategoryDataset();//图例名称列表、x轴名称列表或数据列表为空if (xAxisNameList == null || xAxisNameList.size() <= 0 || legendNameList == null || legendNameList.size() <= 0|| dataList == null || dataList.size() <= 0) {return dataset;}for (int yAxisIndex = 0; yAxisIndex < legendNameList.size() && legendNameList.size() == dataList.size(); yAxisIndex++) {String legendName = legendNameList.get(yAxisIndex);List<Object> rowList = dataList.get(yAxisIndex);//该组数据不存在或该组数据总数不等于x轴数据数量if (rowList == null || rowList.size() != xAxisNameList.size()) {continue;}for (int xAxisIndex = 0; xAxisIndex < rowList.size(); xAxisIndex++) {String value = rowList.get(xAxisIndex).toString();dataset.setValue(Double.parseDouble(value), legendName, xAxisNameList.get(xAxisIndex));}}return dataset;}/*** 设置柱状图渲染* @param plot* @param isShowDataLabels 显示数据值标记*/public static void setBarRenderer(CategoryPlot plot, boolean isShowDataLabels) {plot.setNoDataMessage(NO_DATA_MSG);plot.setInsets(new RectangleInsets(10, 10, 5, 10));BarRenderer renderer = (BarRenderer) plot.getRenderer();// 设置柱子最大宽度renderer.setMaximumBarWidth(0.175);//设置图表背景颜色(透明)plot.setBackgroundPaint(null);//显示数据值标记if (isShowDataLabels) {renderer.setDefaultItemLabelsVisible(true);}renderer.setDefaultItemLabelGenerator(new StandardCategoryItemLabelGenerator());//注意：此句很关键，若无此句，那数字的显示会被覆盖，给人数字没有显示出来的问题renderer.setDefaultPositiveItemLabelPosition(new ItemLabelPosition(ItemLabelAnchor.OUTSIDE12, TextAnchor.BASELINE_CENTER));setXAixs(plot);setYAixs(plot);}/*** 设置折线图样式* @param plot* @param isShowDataLabels 是否显示数据标签* @param isShapesVisible 是否显示数据点*/public static void setLineRender(CategoryPlot plot, boolean isShowDataLabels, boolean isShapesVisible) {plot.setNoDataMessage(NO_DATA_MSG);plot.setInsets(new RectangleInsets(10, 10, 0, 10), false);LineAndShapeRenderer renderer = (LineAndShapeRenderer) plot.getRenderer();//设置图表背景颜色(透明)plot.setBackgroundPaint(null);renderer.setDefaultStroke(new BasicStroke(1.5F));//显示数据标签if (isShowDataLabels) {renderer.setDefaultItemLabelsVisible(true);renderer.setDefaultItemLabelGenerator(new StandardCategoryItemLabelGenerator(StandardCategoryItemLabelGenerator.DEFAULT_LABEL_FORMAT_STRING,NumberFormat.getInstance()));// 位置renderer.setDefaultPositiveItemLabelPosition(new ItemLabelPosition(ItemLabelAnchor.OUTSIDE1, TextAnchor.BOTTOM_CENTER));}// 数据点绘制形状renderer.setDefaultShapesVisible(isShapesVisible);setXAixs(plot);setYAixs(plot);}/*** 设置散点图样式* @param plot*/public static void setScatterRender(XYPlot plot) {plot.setNoDataMessage(NO_DATA_MSG);plot.setInsets(new RectangleInsets(10, 10, 0, 10), false);//设置图表背景颜色(透明)plot.setBackgroundPaint(null);setXAixs(plot);setYAixs(plot);}/*** 设置类别图表(CategoryPlot) X坐标轴线条颜色和样式* @param plot*/public static void setXAixs(CategoryPlot plot) {Color lineColor = new Color(31, 121, 170);// X坐标轴颜色plot.getDomainAxis().setAxisLinePaint(lineColor);// X坐标轴标记|竖线颜色plot.getDomainAxis().setTickMarkPaint(lineColor);}/*** 设置图表(XYPlot) X坐标轴线条颜色和样式* @param plot*/public static void setXAixs(XYPlot plot) {Color lineColor = new Color(31, 121, 170);// X坐标轴颜色plot.getDomainAxis().setAxisLinePaint(lineColor);// X坐标轴标记|竖线颜色plot.getDomainAxis().setTickMarkPaint(lineColor);// x轴网格线条plot.setDomainGridlinePaint(new Color(192, 192, 192));}/*** 设置类别图表(CategoryPlot) Y坐标轴线条颜色和样式 同时防止数据无法显示* @param plot*/public static void setYAixs(CategoryPlot plot) {Color lineColor = new Color(192, 208, 224);ValueAxis axis = plot.getRangeAxis();// Y坐标轴颜色axis.setAxisLinePaint(lineColor);// Y坐标轴标记|竖线颜色axis.setTickMarkPaint(lineColor);// 隐藏Y刻度axis.setAxisLineVisible(false);axis.setTickMarksVisible(false);// Y轴网格线条plot.setRangeGridlinePaint(new Color(192, 192, 192));plot.setRangeGridlineStroke(new BasicStroke(1));// 设置顶部Y坐标轴间距,防止数据无法显示plot.getRangeAxis().setUpperMargin(0.1);// 设置底部Y坐标轴间距plot.getRangeAxis().setLowerMargin(0.1);}/*** 设置图表(XYPlot) Y坐标轴线条颜色和样式 同时防止数据无法显示* @param plot*/public static void setYAixs(XYPlot plot) {Color lineColor = new Color(192, 208, 224);ValueAxis axis = plot.getRangeAxis();// Y坐标轴颜色axis.setAxisLinePaint(lineColor);// Y坐标轴标记|竖线颜色axis.setTickMarkPaint(lineColor);// 隐藏Y刻度axis.setAxisLineVisible(false);axis.setTickMarksVisible(false);// Y轴网格线条plot.setRangeGridlinePaint(new Color(192, 192, 192));// 设置顶部Y坐标轴间距,防止数据无法显示plot.getRangeAxis().setUpperMargin(0.1);// 设置底部Y坐标轴间距plot.getRangeAxis().setLowerMargin(0.1);}
}2.2 GenerateChartUtil 图表生成工具类
package com.shucha.deveiface.biz.utils;/*** @author tqf* @Description 图表生成工具类* @Version 1.0* @since 2022-06-07 09:43*/import cn.hutool.core.collection.CollectionUtil;
import cn.hutool.core.util.StrUtil;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartUtils;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.StandardChartTheme;
import org.jfree.chart.axis.CategoryAxis;
import org.jfree.chart.axis.CategoryLabelPositions;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.axis.ValueAxis;
import org.jfree.chart.block.BlockBorder;
import org.jfree.chart.labels.ItemLabelAnchor;
import org.jfree.chart.labels.ItemLabelPosition;
import org.jfree.chart.labels.StandardCategoryItemLabelGenerator;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.PiePlot3D;
import org.jfree.chart.renderer.category.CategoryItemRenderer;
import org.jfree.chart.ui.RectangleEdge;
import org.jfree.chart.ui.TextAnchor;
import org.jfree.chart.util.Rotation;
import org.jfree.data.general.DefaultPieDataset;
import org.jfree.data.xy.XYDataset;import java.awt.*;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.text.DecimalFormat;
import java.text.NumberFormat;
import java.util.List;public class GenerateChartUtil {/*** 生成柱状图(返回JFreeChart)** @param chartTitle 图表标题* @param legendNameList 图例名称列表* @param xAxisNameList x轴名称列表* @param dataList 数据列表* @param theme 主题(null代表默认主题)* @param yAxisTitle y轴标题* @param xAxisTitle x轴标题* @param yAxisMinValue y轴最小值（可以为空）* @param yAxisMaxValue y轴最大值（可以为空）* @param legendColorList 图例背景颜色（可以为空）* @param barLabelVisible 是否显示柱体标签（可以为空）* @param barLabelFormat 柱体标签格式（可以为空）* @return*/public static JFreeChart createBarChart(String chartTitle, List<String> legendNameList, List<String> xAxisNameList, List<List<Object>> dataList, StandardChartTheme theme, String yAxisTitle, String xAxisTitle, Double yAxisMinValue, Double yAxisMaxValue, List<Color> legendColorList, Boolean barLabelVisible, String barLabelFormat) throws Exception {//设置主题，防止中文乱码theme = theme == null ? JFreeChartUtil.createChartTheme("") : theme;ChartFactory.setChartTheme(theme);//创建柱状图JFreeChart chart = ChartFactory.createBarChart(chartTitle, xAxisTitle, yAxisTitle, JFreeChartUtil.createDefaultCategoryDataset(legendNameList, xAxisNameList, dataList));// 设置抗锯齿，防止字体显示不清楚chart.setTextAntiAlias(false);// 对柱子进行渲染JFreeChartUtil.setBarRenderer(chart.getCategoryPlot(), true);CategoryPlot plot = (CategoryPlot) chart.getPlot();CategoryAxis categoryAxis = plot.getDomainAxis();// 最大换行数categoryAxis.setMaximumCategoryLabelLines(10);//y轴ValueAxis valueAxis = chart.getCategoryPlot().getRangeAxis();if (yAxisMinValue != null) {valueAxis.setLowerBound(yAxisMinValue);}if (yAxisMaxValue != null) {valueAxis.setUpperBound(yAxisMaxValue);}CategoryItemRenderer customBarRenderer = plot.getRenderer();//显示每个柱的数值if (barLabelVisible != null) {customBarRenderer.setDefaultItemLabelsVisible(barLabelVisible);//柱体数值格式if (StrUtil.isNotEmpty(barLabelFormat)) {customBarRenderer.setDefaultItemLabelGenerator(new StandardCategoryItemLabelGenerator(barLabelFormat, NumberFormat.getInstance()));}}//设置系列柱体背景颜色if (CollectionUtil.isNotEmpty(legendColorList)) {for (int i = 0; i < legendNameList.size() && i < legendColorList.size(); i++) {Color color = legendColorList.get(i);if (color == null) {continue;}customBarRenderer.setSeriesPaint(i, color);}}// 设置标注无边框chart.getLegend().setFrame(new BlockBorder(Color.WHITE));// 标注位于上侧chart.getLegend().setPosition(RectangleEdge.TOP);return chart;}/*** 生成柱状图(返回outputStream)** @param chartTitle 图表标题* @param legendNameList 图例名称列表* @param xAxisNameList x轴名称列表* @param dataList 数据列表* @param theme 主题(null代表默认主题)* @param yAxisTitle y轴标题* @param xAxisTitle x轴标题* @param outputStream 输出流* @param width 宽度* @param height 高度* @param yAxisMinValue y轴最小值（可以为空）* @param yAxisMaxValue y轴最大值（可以为空）* @param legendColorList 图例背景颜色（可以为空）* @param barLabelVisible 是否显示柱体标签（可以为空）* @param barLabelFormat 柱体标签格式（可以为空）* @return*/public static void createBarChart(OutputStream outputStream, String chartTitle, List<String> legendNameList, List<String> xAxisNameList, List<List<Object>> dataList, StandardChartTheme theme, String yAxisTitle, String xAxisTitle, int width, int height, Double yAxisMinValue, Double yAxisMaxValue, List<Color> legendColorList, Boolean barLabelVisible, String barLabelFormat) throws Exception {JFreeChart chart = createBarChart(chartTitle, legendNameList, xAxisNameList, dataList, theme, yAxisTitle, xAxisTitle, yAxisMinValue, yAxisMaxValue, legendColorList, barLabelVisible, barLabelFormat);try {ChartUtils.writeChartAsJPEG(outputStream, 1.0f, chart, width, height, null);} catch (IOException e) {e.printStackTrace();}}/*** 生成柱状图(返回byte[])** @param chartTitle 图表标题* @param legendNameList 图例名称列表* @param xAxisNameList x轴名称列表* @param dataList 数据列表* @param theme 主题(null代表默认主题)* @param yAxisTitle y轴标题* @param xAxisTitle x轴标题* @param width 宽度* @param height 高度* @param yAxisMinValue y轴最小值（可以为空）* @param yAxisMaxValue y轴最大值（可以为空）* @param legendColorList 图例背景颜色（可以为空）* @param barLabelVisible 是否显示柱体标签（可以为空）* @param barLabelFormat 柱体标签格式（可以为空）* @return*/public static byte[] createBarChart(String chartTitle, List<String> legendNameList, List<String> xAxisNameList, List<List<Object>> dataList, StandardChartTheme theme, String yAxisTitle, String xAxisTitle, int width, int height, Double yAxisMinValue , Double yAxisMaxValue, List<Color> legendColorList, Boolean barLabelVisible, String barLabelFormat) throws Exception {ByteArrayOutputStream bas = new ByteArrayOutputStream();createBarChart(bas, chartTitle, legendNameList, xAxisNameList, dataList, theme, yAxisTitle, xAxisTitle, width, height, yAxisMinValue, yAxisMaxValue, legendColorList, barLabelVisible, barLabelFormat);byte[] byteArray = bas.toByteArray();return byteArray;}/*** 生成柱堆叠状图(返回JFreeChart)** @param chartTitle 图表标题* @param legendNameList 图例名称列表* @param xAxisNameList x轴名称列表* @param dataList 数据列表* @param theme 主题(null代表默认主题)* @param yAxisTitle y轴标题* @param xAxisTitle x轴标题* @return*/public static JFreeChart createStackedBarChart(String chartTitle, List<String> legendNameList, List<String> xAxisNameList, List<List<Object>> dataList, StandardChartTheme theme, String yAxisTitle, String xAxisTitle) throws Exception {//设置主题，防止中文乱码theme = theme == null ? JFreeChartUtil.createChartTheme("") : theme;ChartFactory.setChartTheme(theme);//创建堆叠柱状图JFreeChart chart = ChartFactory.createStackedBarChart(chartTitle, xAxisTitle, yAxisTitle, JFreeChartUtil.createDefaultCategoryDataset(legendNameList, xAxisNameList, dataList));// 设置抗锯齿，防止字体显示不清楚chart.setTextAntiAlias(false);// 对柱子进行渲染JFreeChartUtil.setBarRenderer(chart.getCategoryPlot(), true);// 设置标注无边框chart.getLegend().setFrame(new BlockBorder(Color.WHITE));// 标注位于上侧chart.getLegend().setPosition(RectangleEdge.TOP);return chart;}/*** 生成堆叠柱状图(返回outputStream)** @param chartTitle 图表标题* @param legendNameList 图例名称列表* @param xAxisNameList x轴名称列表* @param dataList 数据列表* @param theme 主题(null代表默认主题)* @param yAxisTitle y轴标题* @param xAxisTitle x轴标题* @param outputStream 输出流* @param width 宽度* @param height 高度* @return*/public static void createStackedBarChart(OutputStream outputStream, String chartTitle, List<String> legendNameList, List<String> xAxisNameList, List<List<Object>> dataList, StandardChartTheme theme, String yAxisTitle, String xAxisTitle, int width, int height) throws Exception {JFreeChart chart = createStackedBarChart(chartTitle, legendNameList, xAxisNameList, dataList, theme, yAxisTitle, xAxisTitle);try {ChartUtils.writeChartAsJPEG(outputStream, 1.0f, chart, width, height, null);} catch (IOException e) {e.printStackTrace();}}/*** 生成堆叠柱状图(返回byte[])** @param chartTitle 图表标题* @param legendNameList 图例名称列表* @param xAxisNameList x轴名称列表* @param dataList 数据列表* @param theme 主题(null代表默认主题)* @param yAxisTitle y轴标题* @param xAxisTitle x轴标题* @param width 宽度* @param height 高度* @return*/public static byte[] createStackedBarChart(String chartTitle, List<String> legendNameList, List<String> xAxisNameList, List<List<Object>> dataList, StandardChartTheme theme, String yAxisTitle, String xAxisTitle, int width, int height) throws Exception {ByteArrayOutputStream bas = new ByteArrayOutputStream();createStackedBarChart(bas, chartTitle, legendNameList, xAxisNameList, dataList, theme, yAxisTitle, xAxisTitle, width, height);byte[] byteArray = bas.toByteArray();return byteArray;}/*** 生成折线图(返回JFreeChart)** @param chartTitle 图表标题* @param legendNameList 图例名称列表* @param xAxisNameList x轴名称列表* @param dataList 数据列表* @param theme 主题(null代表默认主题)* @param yAxisTitle y轴标题* @param xAxisTitle x轴标题* @return*/public static JFreeChart createLineChart(String chartTitle, List<String> legendNameList, List<String> xAxisNameList, List<List<Object>> dataList, StandardChartTheme theme, String yAxisTitle, String xAxisTitle) throws Exception {//设置主题，防止中文乱码theme = theme == null ? JFreeChartUtil.createChartTheme("") : theme;ChartFactory.setChartTheme(theme);//创建折线图JFreeChart chart = ChartFactory.createLineChart(chartTitle, xAxisTitle, yAxisTitle, JFreeChartUtil.createDefaultCategoryDataset(legendNameList, xAxisNameList, dataList));// 设置抗锯齿，防止字体显示不清楚chart.setTextAntiAlias(false);// 对折现进行渲染JFreeChartUtil.setLineRender(chart.getCategoryPlot(), true, true);// 设置标注无边框chart.getLegend().setFrame(new BlockBorder(Color.WHITE));// 标注位于上侧chart.getLegend().setPosition(RectangleEdge.TOP);return chart;}/*** 生成折线图(返回outputStream)** @param chartTitle 图表标题* @param legendNameList 图例名称列表* @param xAxisNameList x轴名称列表* @param dataList 数据列表* @param theme 主题(null代表默认主题)* @param yAxisTitle y轴标题* @param xAxisTitle x轴标题* @param outputStream 输出流* @param width 宽度* @param height 高度* @return*/public static void createLineChart(OutputStream outputStream, String chartTitle, List<String> legendNameList, List<String> xAxisNameList, List<List<Object>> dataList, StandardChartTheme theme, String yAxisTitle, String xAxisTitle, int width, int height) throws Exception {JFreeChart chart = createLineChart(chartTitle, legendNameList, xAxisNameList, dataList, theme, yAxisTitle, xAxisTitle);try {ChartUtils.writeChartAsJPEG(outputStream, 1.0f, chart, width, height, null);} catch (IOException e) {e.printStackTrace();}}/*** 生成折线图(返回byte[])** @param chartTitle 图表标题* @param legendNameList 图例名称列表* @param xAxisNameList x轴名称列表* @param dataList 数据列表* @param theme 主题(null代表默认主题)* @param yAxisTitle y轴标题* @param xAxisTitle x轴标题* @param width 宽度* @param height 高度* @return*/public static byte[] createLineChart(String chartTitle, List<String> legendNameList, List<String> xAxisNameList, List<List<Object>> dataList, StandardChartTheme theme, String yAxisTitle, String xAxisTitle, int width, int height) throws Exception {ByteArrayOutputStream bas = new ByteArrayOutputStream();createLineChart(bas, chartTitle, legendNameList, xAxisNameList, dataList, theme, yAxisTitle, xAxisTitle, width, height);byte[] byteArray = bas.toByteArray();return byteArray;}/*** 生成散点图(返回JFreeChart)** @param chartTitle 图表标题* @param dataset 数据集* @param theme 主题(null代表默认主题)* @param yAxisTitle y轴标题* @param xAxisTitle x轴标题* @return*/public static JFreeChart createScatterPlot(String chartTitle, XYDataset dataset, StandardChartTheme theme, String yAxisTitle, String xAxisTitle) throws Exception {//设置主题，防止中文乱码theme = theme == null ? JFreeChartUtil.createChartTheme("") : theme;ChartFactory.setChartTheme(theme);//创建散点图JFreeChart chart = ChartFactory.createScatterPlot(chartTitle, xAxisTitle, yAxisTitle, dataset);// 设置抗锯齿，防止字体显示不清楚chart.setTextAntiAlias(false);//散点图渲染JFreeChartUtil.setScatterRender(chart.getXYPlot());// 设置标注无边框chart.getLegend().setFrame(new BlockBorder(Color.WHITE));// 标注位于上侧chart.getLegend().setPosition(RectangleEdge.TOP);return chart;}/*** 生成散点图(返回outputStream)** @param chartTitle 图表标题* @param dataset 数据集* @param theme 主题(null代表默认主题)* @param yAxisTitle y轴标题* @param xAxisTitle x轴标题* @param outputStream 输出流* @param width 宽度* @param height 高度* @return*/public static void createScatterPlot(OutputStream outputStream, String chartTitle, XYDataset dataset, StandardChartTheme theme, String yAxisTitle, String xAxisTitle, int width, int height) throws Exception {JFreeChart chart = createScatterPlot(chartTitle, dataset, theme, yAxisTitle, xAxisTitle);try {ChartUtils.writeChartAsJPEG(outputStream, 1.0f, chart, width, height, null);} catch (IOException e) {e.printStackTrace();}}/*** 生成散点图(返回byte[])** @param chartTitle 图表标题* @param dataset 数据集* @param theme 主题(null代表默认主题)* @param yAxisTitle y轴标题* @param xAxisTitle x轴标题* @param width 宽度* @param height 高度* @return*/public static byte[] createScatterPlot(String chartTitle, XYDataset dataset, StandardChartTheme theme, String yAxisTitle, String xAxisTitle, int width, int height) throws Exception {ByteArrayOutputStream bas = new ByteArrayOutputStream();createScatterPlot(bas, chartTitle, dataset, theme, yAxisTitle, xAxisTitle, width, height);byte[] byteArray = bas.toByteArray();return byteArray;}
}2.3 GeneratePieChartUtil 饼图生成工具类
package com.shucha.deveiface.biz.utils;/*** @author tqf* @Description 饼图生成工具类* @Version 1.0* @since 2022-06-07 09:50*/
import cn.hutool.core.collection.CollectionUtil;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartUtils;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.StandardChartTheme;
import org.jfree.chart.block.BlockBorder;
import org.jfree.chart.plot.PieLabelLinkStyle;
import org.jfree.chart.plot.PiePlot;
import org.jfree.chart.plot.PiePlot3D;
import org.jfree.chart.ui.RectangleEdge;
import org.jfree.chart.util.Rotation;import java.awt.*;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.List;public class GeneratePieChartUtil {/*** 生成饼图(返回JFreeChart)** @param chartTitle 图表标题* @param legendNameList 图例名称列表* @param dataList 数据列表* @param theme 主题(null代表默认主题)* @param legendColorList 图例背景颜色列表（为空，使用默认背景颜色）* @param explodePercentList 偏离百分比数据* @return*/public static JFreeChart createPieChart(String chartTitle, List<String> legendNameList, List<Object> dataList, StandardChartTheme theme, List<Color> legendColorList, List<Double> explodePercentList) throws Exception {//设置主题，防止中文乱码theme = theme == null ? JFreeChartUtil.createChartTheme("") : theme;ChartFactory.setChartTheme(theme);//创建饼图JFreeChart chart = ChartFactory.createPieChart(chartTitle, JFreeChartUtil.createDefaultPieDataset(legendNameList, dataList));// 设置抗锯齿，防止字体显示不清楚chart.setTextAntiAlias(false);PiePlot piePlot = (PiePlot) chart.getPlot();//边框线为白色piePlot.setOutlinePaint(Color.white);//连接线类型为直线piePlot.setLabelLinkStyle(PieLabelLinkStyle.QUAD_CURVE);// 对饼图进行渲染JFreeChartUtil.setPieRender(chart.getPlot());// 设置标注无边框chart.getLegend().setFrame(new BlockBorder(Color.WHITE));// 标注位于右侧chart.getLegend().setPosition(RectangleEdge.RIGHT);//设置图例背景颜色（饼图）if (CollectionUtil.isNotEmpty(legendColorList)) {for (int i = 0; i < legendNameList.size() && i < legendColorList.size(); i++) {Color color = legendColorList.get(i);if (color == null) {continue;}piePlot.setSectionPaint(legendNameList.get(i), color);}}//设置偏离百分比if (CollectionUtil.isNotEmpty(explodePercentList)) {for (int i = 0; i < legendNameList.size() && i < explodePercentList.size(); i++) {piePlot.setExplodePercent(legendNameList.get(i), explodePercentList.get(i));}}return chart;}/*** 生成饼图（返回byte[])** @param chartTitle 图表标题* @param legendNameList 图例名称列表* @param dataList 数据列表* @param width 宽度* @param height 高度* @param theme 主题(null代表默认主题)* @param legendColorList 图例背景颜色列表（为空，使用默认背景颜色）* @param explodePercentList 偏离百分比数据* @return*/public static byte[] createPieChart(String chartTitle, List<String> legendNameList, List<Object> dataList, int width, int height, StandardChartTheme theme, List<Color> legendColorList, List<Double> explodePercentList) throws Exception {ByteArrayOutputStream bas = new ByteArrayOutputStream();createPieChart(bas, chartTitle, legendNameList, dataList, width, height, theme, legendColorList, explodePercentList);byte[] byteArray = bas.toByteArray();return byteArray;}/*** 生成饼图(返回outputStream)** @param outputStream 输出流* @param chartTitle 图表标题* @param legendNameList 图例名称列表* @param dataList 数据列表* @param width 宽度* @param height 高度* @param theme 主题(null代表默认主题)* @param legendColorList 图例背景颜色列表（为空，使用默认背景颜色）* @param explodePercentList 偏离百分比数据* @return*/public static void createPieChart(OutputStream outputStream, String chartTitle, List<String> legendNameList, List<Object> dataList, int width, int height, StandardChartTheme theme, List<Color> legendColorList, List<Double> explodePercentList) throws Exception {JFreeChart chart = createPieChart(chartTitle, legendNameList, dataList, theme, legendColorList, explodePercentList);try {ChartUtils.writeChartAsJPEG(outputStream, 1.0f, chart, width, height, null);} catch (IOException e) {e.printStackTrace();}}/*** 生成3D饼图(返回JFreeChart)** @param chartTitle 图表标题* @param legendNameList 图例名称列表* @param dataList 数据列表* @param theme 主题(null代表默认主题)* @param alpha 0.5F为半透明，1为不透明，0为全透明* @param legendColorList 图例背景颜色列表（为空，使用默认背景颜色）* @return*/public static JFreeChart create3DPieChart(String chartTitle, List<String> legendNameList, List<Object> dataList, StandardChartTheme theme, float alpha, List<Color> legendColorList) throws Exception {//设置主题，防止中文乱码theme = theme == null ? JFreeChartUtil.createChartTheme("") : theme;ChartFactory.setChartTheme(theme);//创建饼图JFreeChart chart = ChartFactory.createPieChart3D(chartTitle, JFreeChartUtil.createDefaultPieDataset(legendNameList, dataList), true, true, true);// 设置抗锯齿，防止字体显示不清楚chart.setTextAntiAlias(false);// 设置标注无边框chart.getLegend().setFrame(new BlockBorder(Color.WHITE));// 标注位于右侧chart.getLegend().setPosition(RectangleEdge.RIGHT);PiePlot3D pieplot3d = (PiePlot3D) chart.getPlot();//设置方向为”顺时针方向“pieplot3d.setDirection(Rotation.CLOCKWISE);//设置透明度，0.5F为半透明，1为不透明，0为全透明pieplot3d.setForegroundAlpha(alpha);//边框线为白色pieplot3d.setOutlinePaint(Color.white);//连接线类型为直线pieplot3d.setLabelLinkStyle(PieLabelLinkStyle.QUAD_CURVE);//设置图例背景颜色（饼图）if (CollectionUtil.isNotEmpty(legendColorList)) {for (int i = 0; i < legendNameList.size() && i < legendColorList.size(); i++) {pieplot3d.setSectionPaint(legendNameList.get(i), legendColorList.get(i));}}// 对饼图进行渲染JFreeChartUtil.setPieRender(chart.getPlot());return chart;}/*** 生成3D饼图（返回byte[])** @param chartTitle 图表标题* @param legendNameList 图例名称列表* @param dataList 数据列表* @param width 宽度* @param height 高度* @param theme 主题(null代表默认主题)* @param alpha 0.5F为半透明，1为不透明，0为全透明* @param legendColorList 图例背景颜色列表（为空，使用默认背景颜色）* @return*/public static byte[] create3DPieChart(String chartTitle, List<String> legendNameList, List<Object> dataList, int width, int height, StandardChartTheme theme, float alpha, List<Color> legendColorList) throws Exception {ByteArrayOutputStream bas = new ByteArrayOutputStream();create3DPieChart(bas, chartTitle, legendNameList, dataList, width, height, theme, alpha, legendColorList);byte[] byteArray = bas.toByteArray();return byteArray;}/*** 生成3D饼图(返回outputStream)** @param outputStream 输出流* @param chartTitle 图表标题* @param legendNameList 图例名称列表* @param dataList 数据列表* @param width 宽度* @param height 高度* @param theme 主题(null代表默认主题)* @param alpha 0.5F为半透明，1为不透明，0为全透明* @param legendColorList 图例背景颜色列表（为空，使用默认背景颜色）* @return*/public static void create3DPieChart(OutputStream outputStream, String chartTitle, List<String> legendNameList, List<Object> dataList, int width, int height, StandardChartTheme theme, float alpha, List<Color> legendColorList) throws Exception {JFreeChart chart = create3DPieChart(chartTitle, legendNameList, dataList, theme, alpha, legendColorList);try {ChartUtils.writeChartAsJPEG(outputStream, 1.0f, chart, width, height, null);} catch (IOException e) {e.printStackTrace();}}
}3、生成图片到本地测试代码类
package com.shucha.deveiface.biz.test;import com.shucha.deveiface.biz.utils.GenerateChartUtil;
import com.shucha.deveiface.biz.utils.GeneratePieChartUtil;
import com.shucha.deveiface.biz.utils.JFreeChartUtil;import org.apache.poi.hssf.usermodel.HSSFClientAnchor;
import org.apache.poi.hssf.usermodel.HSSFPatriarch;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.jfree.chart.*;
import org.jfree.chart.block.BlockBorder;
import org.jfree.chart.labels.StandardPieSectionLabelGenerator;
import org.jfree.chart.plot.*;
import org.jfree.chart.plot.dial.*;
import org.jfree.chart.title.LegendTitle;
import org.jfree.chart.title.TextTitle;
import org.jfree.chart.ui.GradientPaintTransformType;
import org.jfree.chart.ui.RectangleEdge;
import org.jfree.chart.ui.StandardGradientPaintTransformer;
import org.jfree.data.Range;
import org.jfree.data.category.DefaultCategoryDataset;
import org.jfree.data.general.DefaultPieDataset;
import org.jfree.data.general.DefaultValueDataset;
import org.jfree.data.general.PieDataset;
import org.jfree.data.xy.XYSeries;
import org.jfree.data.xy.XYSeriesCollection;import java.awt.*;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.text.NumberFormat;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Random;/*** @author tqf* @Description* @Version 1.0* @since 2022-06-07 09:46*/
public class JFreeChartTest {/*** 生成的图片存放地址*/public static String imagePath = "D://123//jfree//1";public static void main(String[] args) throws Exception {// 生成饼图testPie();// 生成3D饼图testPie3D();// 生成柱状图testBarChart();// 层叠柱状图stackedBarChart();// 生成折线图lineChart();// 生成散点图scatterPlot();// 生成雷达图radar();// 生成环形图ringChart();// 生成仪表盘meter();meter2();// 生成XY图xyImage();}/*** 生成饼图*/public static void testPie() throws Exception {//图例名称列表List<String> legendNameList = new ArrayList<>(Arrays.asList("一级", "二级", "三级", "四级", "五级"));//数据列表List<Object> dataList = new ArrayList<>(Arrays.asList(1, 3, 5, 6, 2));//图例背景颜色列表List<Color> legendColorList = new ArrayList<>(Arrays.asList(Color.YELLOW, Color.GRAY, Color.green, Color.cyan, Color.ORANGE));//偏离百分比数据List<Double> explodePercentList = new ArrayList<>(Arrays.asList(0.1, 0.1, 0.1, 0.1, 0.1));JFreeChart chart = GeneratePieChartUtil.createPieChart("各级占比情况", legendNameList, dataList,JFreeChartUtil.createChartTheme("宋体"), legendColorList, explodePercentList);//在D盘目录下生成图片File p = new File(imagePath);if (!p.exists()) {p.mkdirs();}String imageName = System.currentTimeMillis() + "_饼图" + ".jpeg";File file = new File(p.getPath() + "/" + imageName);try {if(file.exists()) {file.delete();}ChartUtils.saveChartAsJPEG(file, chart, 800, 600);} catch (IOException e) {e.printStackTrace();}}/*** 生成3D饼图* @throws Exception*/public static void testPie3D() throws Exception {//图例名称列表List<String> legendNameList = new ArrayList<>(Arrays.asList("一级", "二级", "三级", "四级", "五级"));//数据列表List<Object> dataList = new ArrayList<>(Arrays.asList(1, 3, 5, 6, 2));//图例背景颜色列表List<Color> legendColorList = new ArrayList<>(Arrays.asList(Color.YELLOW, Color.GRAY, Color.green, Color.cyan, Color.ORANGE));JFreeChart chart = GeneratePieChartUtil.create3DPieChart("各级占比情况", legendNameList, dataList, JFreeChartUtil.createChartTheme("宋体"), 1f, legendColorList);//在D盘目录下生成图片File p = new File(imagePath);if (!p.exists()) {p.mkdirs();}String imageName = System.currentTimeMillis() + "_3D饼图" + ".jpeg";File file = new File(p.getPath() + "/" + imageName);try {if(file.exists()) {file.delete();}ChartUtils.saveChartAsJPEG(file, chart, 800, 600);} catch (IOException e) {e.printStackTrace();}}/*** 生成柱状图*/public static void testBarChart() throws Exception {//x轴名称列表List<String> xAxisNameList = new ArrayList<>(Arrays.asList("一级", "二级", "三级", "四级", "五级"));//图例名称列表List<String> legendNameList = new ArrayList<>(Arrays.asList("李四", "张三"));//数据列表List<List<Object>> dataList = new ArrayList<>();dataList.add(new ArrayList<>(Arrays.asList(100, 90, 5, 6, 2)));dataList.add(new ArrayList<>(Arrays.asList(2, 0, 3, 4, 5)));//图例背景颜色List<Color> legendColorList = new ArrayList<>(Arrays.asList(new Color(65, 105, 225)));JFreeChart chart = GenerateChartUtil.createBarChart("各级变化图", legendNameList, xAxisNameList, dataList, JFreeChartUtil.createChartTheme("宋体"), "y轴", "x轴",0d, 100d, legendColorList, true, "{2}%");//在D盘目录下生成图片File p = new File(imagePath);if (!p.exists()) {p.mkdirs();}String imageName = System.currentTimeMillis() + "_柱状图" + ".jpeg";File file = new File(p.getPath() + "/" + imageName);try {if(file.exists()) {file.delete();}ChartUtils.saveChartAsJPEG(file, chart, 800, 600);} catch (IOException e) {e.printStackTrace();}}/*** 层叠柱状图*/public static void stackedBarChart() throws Exception {//x轴名称列表List<String> xAxisNameList = new ArrayList<>(Arrays.asList("一级", "二级", "三级", "四级", "五级"));//图例名称列表List<String> legendNameList = new ArrayList<>(Arrays.asList("李四", "张三"));//数据列表List<List<Object>> dataList = new ArrayList<>();dataList.add(new ArrayList<>(Arrays.asList(1, 3, 5, 6, 2)));dataList.add(new ArrayList<>(Arrays.asList(2, 1, 3, 4, 5)));// 返回outputStream//GenerateChartUtil.createStackedBarChart(response.getOutputStream(), "各级变化图", legendNameList, xAxisNameList// , dataList, JFreeChartUtil.createChartTheme("宋体"), "y轴", "x轴", 600, 400);// 返回JFreeChartJFreeChart chart = GenerateChartUtil.createStackedBarChart("各级变化图", legendNameList, xAxisNameList, dataList, JFreeChartUtil.createChartTheme("宋体"), "y轴", "x轴");//在D盘目录下生成图片File p = new File(imagePath);if (!p.exists()) {p.mkdirs();}String imageName = System.currentTimeMillis() + "_层叠柱状图" + ".jpeg";File file = new File(p.getPath() + "/" + imageName);try {if(file.exists()) {file.delete();}ChartUtils.saveChartAsJPEG(file, chart, 800, 600);} catch (IOException e) {e.printStackTrace();}}/*** 生成折线图*/public static void lineChart() throws Exception {//x轴名称列表List<String> xAxisNameList = new ArrayList<>(Arrays.asList("一级", "二级", "三级", "四级", "五级"));//图例名称列表List<String> legendNameList = new ArrayList<>(Arrays.asList("李四", "张三","王五"));//数据列表List<List<Object>> dataList = new ArrayList<>();dataList.add(new ArrayList<>(Arrays.asList(1, 3, 5, 6, 2)));dataList.add(new ArrayList<>(Arrays.asList(2, 1, 3, 4, 5)));dataList.add(new ArrayList<>(Arrays.asList(5, 8, 4, 6, 4)));// 返回outputStream//GenerateChartUtil.createLineChart(response.getOutputStream(), "各级变化图", legendNameList, xAxisNameList// , dataList, JFreeChartUtil.createChartTheme("宋体"), "y轴", "x轴", 600, 400);JFreeChart chart = GenerateChartUtil.createLineChart("各级变化图", legendNameList, xAxisNameList, dataList, JFreeChartUtil.createChartTheme("宋体"), "y轴", "x轴");//在D盘目录下生成图片File p = new File(imagePath);if (!p.exists()) {p.mkdirs();}String imageName = System.currentTimeMillis() + "_折线图" + ".jpeg";File file = new File(p.getPath() + "/" + imageName);try {if(file.exists()) {file.delete();}ChartUtils.saveChartAsJPEG(file, chart, 800, 600);} catch (IOException e) {e.printStackTrace();}}/*** 生成散点图*/public static void scatterPlot() throws Exception {//设置散点图数据集//设置第一个/*XYSeries firefox = new XYSeries("火狐浏览器");firefox.add(1.0, 1.0);firefox.add(2.0, 4.0);firefox.add(3.0, 3.0);//设置第二个XYSeries chrome = new XYSeries("谷歌浏览器");chrome.add(1.0, 4.0);chrome.add(2.0, 5.0);chrome.add(3.0, 6.0);//设置第三个XYSeries ie = new XYSeries("IE刘浏览器");ie.add(3.0, 4.0);ie.add(4.0, 5.0);ie.add(5.0, 4.0);//添加到数据集XYSeriesCollection dataset = new XYSeriesCollection();dataset.addSeries(firefox);dataset.addSeries(chrome);dataset.addSeries(ie);*/XYSeriesCollection dataset = new XYSeriesCollection();String nameArray[] = {"火狐","谷歌","IE","360浏览器"};double value[][] = {{1,2},{2,4},{3,5},{1,4},{2,5},{3,6},{3,4},{4,5},{5,4},{3,6},{4,6},{5,9}};int data =0;for (int i=0; i<nameArray.length;i++) {XYSeries firefox = new XYSeries(nameArray[i]);for (int j=0;j<3;j++) {firefox.add(value[data][0],value[data][1]);data++;}dataset.addSeries(firefox);}// 返回outputStream// GenerateChartUtil.createScatterPlot(response.getOutputStream(), "各级变化图", dataset// , JFreeChartUtil.createChartTheme("宋体"), "y轴", "x轴", 600, 400);JFreeChart chart = GenerateChartUtil.createScatterPlot("各级变化图", dataset, JFreeChartUtil.createChartTheme("宋体"), "y轴", "x轴");//在D盘目录下生成图片File p = new File(imagePath);if (!p.exists()) {p.mkdirs();}String imageName = System.currentTimeMillis() + "_散点图" + ".jpeg";File file = new File(p.getPath() + "/" + imageName);try {if(file.exists()) {file.delete();}ChartUtils.saveChartAsJPEG(file, chart, 800, 600);} catch (IOException e) {e.printStackTrace();}}/*** 生成雷达图*/public static void radar() throws IOException {/* DefaultCategoryDataset dataset = new DefaultCategoryDataset();String group1 = "华为";dataset.addValue(5, group1, "w1");dataset.addValue(6, group1, "w2");dataset.addValue(4, group1, "w3");dataset.addValue(2, group1, "w4");dataset.addValue(5, group1, "w5");dataset.addValue(5, group1, "w6");dataset.addValue(5, group1, "w7");dataset.addValue(8, group1, "w8");group1 = "苹果 ";dataset.addValue(2, group1, "w1");dataset.addValue(4, group1, "w2");dataset.addValue(4, group1, "w3");dataset.addValue(5, group1, "w4");dataset.addValue(5, group1, "w5");dataset.addValue(8, group1, "w6");dataset.addValue(9, group1, "w7");dataset.addValue(8, group1, "w8");*/DefaultCategoryDataset dataset = new DefaultCategoryDataset();String nameArray[]= {"华为","苹果","小米"};Random r = new Random();for (int i=0;i<nameArray.length;i++) {for (int j=1;j<9;j++){// 生成[0,10]区间的整数int value = r.nextInt(10) * 2;dataset.addValue(value, nameArray[i], "w"+j);}}SpiderWebPlot spiderwebplot = new SpiderWebPlot(dataset);JFreeChart chart = new JFreeChart("Test", TextTitle.DEFAULT_FONT, spiderwebplot, false);LegendTitle legendtitle = new LegendTitle(spiderwebplot);legendtitle.setPosition(RectangleEdge.TOP);chart.addSubtitle(legendtitle);//在D盘目录下生成图片File p = new File(imagePath);if (!p.exists()) {p.mkdirs();}String imageName = System.currentTimeMillis() + "_雷达图" + ".jpeg";File file = new File(p.getPath() + "/" + imageName);try {if(file.exists()) {file.delete();}ChartUtils.saveChartAsJPEG(file, chart, 800, 600);} catch (IOException e) {e.printStackTrace();}// 下方是生成的图片插入到excel文件中// excel2003工作表HSSFWorkbook wb = new HSSFWorkbook();// 创建工作表HSSFSheet sheet = wb.createSheet("Sheet 1");// 创建字节输出流ByteArrayOutputStream byteArrayOut = new ByteArrayOutputStream();// 读取chart信息至字节输出流ChartUtils.writeChartAsPNG(byteArrayOut, chart, 600, 300);// 画图的顶级管理器，一个sheet只能获取一个（一定要注意这点）HSSFPatriarch patriarch = sheet.createDrawingPatriarch();// anchor主要用于设置图片的属性HSSFClientAnchor anchor = new HSSFClientAnchor(0, 0, 0, 0, (short) 2, (short) 1, (short) 12, (short) 15);// anchor.setAnchorType(3);// 插入图片patriarch.createPicture(anchor, wb.addPicture(byteArrayOut.toByteArray(), HSSFWorkbook.PICTURE_TYPE_PNG));// excel2003后缀FileOutputStream fileOut = new FileOutputStream("D://雷达图.xls");wb.write(fileOut);fileOut.close();}/*** 生成环形图*/public static void ringChart() {DefaultPieDataset dataSet = new DefaultPieDataset();//使用循环向数据集合中添加数据int i,j;String []a={"Java","VC","C++","数据结构","计算机网络"};int []b={1964,820,825,960,1000};for(i=0,j=0;i<a.length&&j<b.length;i++,j++){dataSet.setValue(a[i],b[j]);}StandardChartTheme mChartTheme = new StandardChartTheme("CN");mChartTheme.setLargeFont(new Font("黑体", Font.BOLD, 14)); // Y柱标签字体（浓度(单位：ppm)）mChartTheme.setExtraLargeFont(new Font("宋体", Font.PLAIN, 20)); //标题 （二氧化碳浓度趋势分析图）//应用主题样式ChartFactory.setChartTheme(mChartTheme);//定义图标对象JFreeChart chart = ChartFactory.createRingChart ("环形图",// 报表题目，字符串类型dataSet, // 获得数据集true, // 显示图例false, // 不用生成工具false // 不用生成URL地址);//图表RingPlot ringplot=(RingPlot) chart.getPlot();ringplot.setLabelFont(new Font("宋体", Font.BOLD, 14));//用来显示标注的注解，{0}:{1}用来设置显示的格式ringplot.setLabelGenerator(new StandardPieSectionLabelGenerator("{0}:{1}"));// ringplot.setBackgroundPaint(Color.gray);//设置背景色//设置简单标签ringplot.setSimpleLabels(true);//标题TextTitle texttitle=chart.getTitle();texttitle.setFont(new Font("宋体", Font.BOLD, 30));//图示LegendTitle legendtitle =chart.getLegend();legendtitle.setItemFont(new Font("宋体", Font.BOLD, 14));/*ChartFrame mChartFrame = new ChartFrame("环形图", chart);mChartFrame.pack();mChartFrame.setVisible(true);*///在D盘目录下生成图片File p = new File(imagePath);if (!p.exists()) {p.mkdirs();}String imageName = System.currentTimeMillis() + "_环形图" + ".jpeg";File file = new File(p.getPath() + "/" + imageName);try {if(file.exists()) {file.delete();}ChartUtils.saveChartAsJPEG(file, chart, 800, 600);} catch (IOException e) {e.printStackTrace();}}/*** 生成仪表盘图*/public static void meter(){DefaultValueDataset data = new DefaultValueDataset(32.0);MeterPlot plot = new MeterPlot(data);plot.setDialShape(DialShape.CHORD);plot.setDialBackgroundPaint(Color.WHITE);plot.setRange(new Range(0, 120));plot.setDialOutlinePaint(Color.GRAY);plot.setNeedlePaint(Color.BLACK);plot.setTickLabelsVisible(true);plot.setTickLabelPaint(Color.BLACK);plot.setTickPaint(Color.GRAY);plot.setTickLabelFormat(NumberFormat.getNumberInstance());plot.setTickSize(10);plot.setValuePaint(Color.BLACK);plot.addInterval(new MeterInterval("Low", new Range(0, 70), null, null,new Color(128, 255, 128,90) ));plot.addInterval(new MeterInterval("Normal", new Range(70, 100), null, null, new Color(255, 255, 128,90)));plot.addInterval(new MeterInterval("High", new Range(100, 120), null, null, new Color(255, 128, 128,90)));//创建chart，最后一个参数决定是否显示图例final JFreeChart chart = new JFreeChart("Meter Chart", JFreeChart.DEFAULT_TITLE_FONT, plot, true);//在D盘目录下生成图片File p = new File(imagePath);if (!p.exists()) {p.mkdirs();}String imageName = System.currentTimeMillis() + "_仪表盘" + ".jpeg";File file = new File(p.getPath() + "/" + imageName);try {if(file.exists()) {file.delete();}ChartUtils.saveChartAsJPEG(file, chart, 800, 600);} catch (IOException e) {e.printStackTrace();}}/*** 生成仪表盘*/public static void meter2(){//1,数据集合对象 此处为DefaultValueDatasetDefaultValueDataset dataset = new DefaultValueDataset();// 当前指针指向的位置，即：我们需要显示的数据dataset.setValue(12D);/*** 获取图表区域对象** A. setDataSet(int index, DataSet dataSet);* 为表盘设定使用的数据集，通常一个表盘上可能存在多个指针，* 因此需要制定该数据集与哪个指针相互关联。* 可以将指针想象成数据集的一种体现方式。*/DialPlot dialplot = new DialPlot();dialplot.setView(0.0D, 0.0D, 1.0D, 1.0D);dialplot.setDataset(0,dataset);/*** 开始设置显示框架结构* B. setDailFrame(DailFrame dailFrame);设置表盘的底层面板图像，通常表盘是整个仪表的最底层。*/DialFrame dialframe =new StandardDialFrame();dialplot.setDialFrame(dialframe);/*** 结束设置显示框架结构DialCap* C. setBackground(Color color);设置表盘的颜色，可以采用Java内置的颜色控制方式来调用该方法。*/GradientPaint gradientpaint = new GradientPaint(new Point(), new Color(255, 255, 255), new Point(), new Color(170, 170, 220));DialBackground dialbackground = new DialBackground(gradientpaint);dialbackground.setGradientPaintTransformer(new StandardGradientPaintTransformer(GradientPaintTransformType.VERTICAL));dialplot.setBackground(dialbackground);// 设置显示在表盘中央位置的信息DialTextAnnotation dialtextannotation = new DialTextAnnotation("温度");dialtextannotation.setFont(new Font("Dialog", 1, 14));dialtextannotation.setRadius(0.69999999999999996D);dialplot.addLayer(dialtextannotation);DialValueIndicator dialvalueindicator = new DialValueIndicator(0);dialplot.addLayer(dialvalueindicator);// 根据表盘的直径大小（0.75），设置总刻度范围/*** E. addScale(int index, DailScale dailScale);* 用于设定表盘上的量程，index指明该量程属于哪一个指针所指向的数据集，* DailScale指明该量程的样式，如量程的基本单位等信息。** StandardDialScale(double lowerBound, double upperBound, double startAngle,* double extent, double majorTickIncrement, int minorTickCount)* new StandardDialScale(-40D, 60D, -120D, -300D,30D);*///StandardDialScale standarddialscale =new StandardDialScale();standarddialscale.setLowerBound(-40D);standarddialscale.setUpperBound(60D);standarddialscale.setStartAngle(-120D);standarddialscale.setExtent(-300D);standarddialscale.setTickRadius(0.88D);standarddialscale.setTickLabelOffset(0.14999999999999999D);standarddialscale.setTickLabelFont(new Font("Dialog", 0, 14));dialplot.addScale(0, standarddialscale);/*** F. addLayer(DailRange dailRange);* 用于设定某一特定量程的特殊表现，通常位于量程之下，如红色范围标注，绿色范围标注等。* 在调用该方法之前需要设定DailRange的一些信息，包括位置信息，颜色信息等等。*///设置刻度范围（红色）StandardDialRange standarddialrange = new StandardDialRange(40D, 60D, Color.red);standarddialrange.setInnerRadius(0.52000000000000002D);standarddialrange.setOuterRadius(0.55000000000000004D);dialplot.addLayer(standarddialrange);//设置刻度范围（橘黄色）StandardDialRange standarddialrange1 = new StandardDialRange(10D, 40D, Color.orange);standarddialrange1.setInnerRadius(0.52000000000000002D);standarddialrange1.setOuterRadius(0.55000000000000004D);dialplot.addLayer(standarddialrange1);//设置刻度范围（绿色）StandardDialRange standarddialrange2 = new StandardDialRange(-40D, 10D, Color.green);standarddialrange2.setInnerRadius(0.52000000000000002D);standarddialrange2.setOuterRadius(0.55000000000000004D);dialplot.addLayer(standarddialrange2);/*** 设置指针* G. addPointer(DailPointer dailPointer);* 用于设定表盘使用的指针样式，JFreeChart中有很多可供选择指针样式，* 用户可以根据使用需要，采用不同的DailPoint的实现类来调用该方法*/DialPointer.Pointer pointer = new DialPointer.Pointer(); //内部内dialplot.addPointer(pointer); //addLayer(pointer);/*** 实例化DialCap* H. setCap(DailCap dailCap);设定指针上面的盖帽的样式。*/DialCap dialcap = new DialCap();dialcap.setRadius(0.10000000000000001D);dialplot.setCap(dialcap);//生成chart对象JFreeChart jfreechart = new JFreeChart(dialplot);//设置标题jfreechart.setTitle("设备取水温度采样");//在D盘目录下生成图片File p = new File(imagePath);if (!p.exists()) {p.mkdirs();}String imageName = System.currentTimeMillis() + "_仪表盘2" + ".jpeg";File file = new File(p.getPath() + "/" + imageName);try {if(file.exists()) {file.delete();}ChartUtils.saveChartAsJPEG(file, jfreechart, 500, 500);} catch (IOException e) {e.printStackTrace();}/* ChartFrame frame = new ChartFrame("CityInfoPort公司组织架构图 ", jfreechart,true);frame.pack();//屏幕居中RefineryUtilities.centerFrameOnScreen(frame);frame.setVisible(true);*/}/*** 生成XY图*/public static void xyImage() throws Exception {/*final XYSeries firefox = new XYSeries( "火狐" );firefox.add( 1.0 , 1.0 );firefox.add( 2.0 , 4.0 );firefox.add( 3.0 , 3.0 );final XYSeries chrome = new XYSeries( "谷歌" );chrome.add( 1.0 , 4.0 );chrome.add( 2.0 , 5.0 );chrome.add( 3.0 , 6.0 );final XYSeries iexplorer = new XYSeries( "IE" );iexplorer.add( 3.0 , 4.0 );iexplorer.add( 4.0 , 5.0 );iexplorer.add( 5.0 , 4.0 );final XYSeriesCollection dataset = new XYSeriesCollection( );dataset.addSeries( firefox );dataset.addSeries( chrome );dataset.addSeries( iexplorer );*/XYSeriesCollection dataset = new XYSeriesCollection();String nameArray[] = {"火狐","谷歌","IE","360浏览器"};double value[][] = {{1,2},{2,4},{3,5},{1,4},{2,5},{3,6},{3,4},{4,5},{5,4},{3,6},{4,6},{5,9}};int data =0;for (int i=0; i<nameArray.length;i++) {XYSeries firefox = new XYSeries(nameArray[i]);for (int j=0;j<3;j++) {firefox.add(value[data][0],value[data][1]);data++;}dataset.addSeries(firefox);}JFreeChart chart = ChartFactory.createXYLineChart("浏览器使用情况统计","类别","分数",dataset,PlotOrientation.VERTICAL,true,true,false);chart.getTitle().setFont(JFreeChartUtil.getDefaultFont(0,15f));//设置提示条字体Font font = new Font("宋体", Font.BOLD, 15);chart.getLegend().setItemFont(font);// 标注位于上侧// chart.getLegend().setPosition(RectangleEdge.TOP);// 设置标注无边框chart.getLegend().setFrame(new BlockBorder(Color.WHITE));// 得到图块,准备设置标签的字体XYPlot plot = (XYPlot) chart.getPlot();//设置plot的背景色透明度plot.setBackgroundAlpha(0.0f);// 设置网格横线颜色plot.setRangeGridlinePaint(Color.gray);// 设置网格横线大小plot.setDomainGridlineStroke(new BasicStroke(0.2F));plot.setRangeGridlineStroke(new BasicStroke(0.2F));int width = 640;int height = 480;//在D盘目录下生成图片File p = new File(imagePath);if (!p.exists()) {p.mkdirs();}String imageName = System.currentTimeMillis() + "_XY图" + ".jpeg";File file = new File(p.getPath() + "/" + imageName);try {if(file.exists()) {file.delete();}ChartUtils.saveChartAsJPEG(file, chart, width, height);} catch (IOException e) {e.printStackTrace();}}
}3.1 生成饼图
3.1.1 调用方法
/*** 生成饼图*/public static void testPie() throws Exception {//图例名称列表List<String> legendNameList = new ArrayList<>(Arrays.asList("一级", "二级", "三级", "四级", "五级"));//数据列表List<Object> dataList = new ArrayList<>(Arrays.asList(1, 3, 5, 6, 2));//图例背景颜色列表List<Color> legendColorList = new ArrayList<>(Arrays.asList(Color.YELLOW, Color.GRAY, Color.green, Color.cyan, Color.ORANGE));//偏离百分比数据List<Double> explodePercentList = new ArrayList<>(Arrays.asList(0.1, 0.1, 0.1, 0.1, 0.1));JFreeChart chart = GeneratePieChartUtil.createPieChart("各级占比情况", legendNameList, dataList,JFreeChartUtil.createChartTheme("宋体"), legendColorList, explodePercentList);//在D盘目录下生成图片File p = new File(imagePath);if (!p.exists()) {p.mkdirs();}String imageName = System.currentTimeMillis() + "_饼图" + ".jpeg";File file = new File(p.getPath() + "/" + imageName);try {if(file.exists()) {file.delete();}ChartUtils.saveChartAsJPEG(file, chart, 800, 600);} catch (IOException e) {e.printStackTrace();}}3.1.2 生成图片效果
PS：生成的饼图不需要中间的间隙，就注释掉 设置偏离百分比代码
3.2 生成3D饼图
3.2.1 调用方法
/*** 生成3D饼图* @throws Exception*/public static void testPie3D() throws Exception {//图例名称列表List<String> legendNameList = new ArrayList<>(Arrays.asList("一级", "二级", "三级", "四级", "五级"));//数据列表List<Object> dataList = new ArrayList<>(Arrays.asList(1, 3, 5, 6, 2));//图例背景颜色列表List<Color> legendColorList = new ArrayList<>(Arrays.asList(Color.YELLOW, Color.GRAY, Color.green, Color.cyan, Color.ORANGE));JFreeChart chart = GeneratePieChartUtil.create3DPieChart("各级占比情况", legendNameList, dataList, JFreeChartUtil.createChartTheme("宋体"), 1f, legendColorList);//在D盘目录下生成图片File p = new File(imagePath);if (!p.exists()) {p.mkdirs();}String imageName = System.currentTimeMillis() + "_3D饼图" + ".jpeg";File file = new File(p.getPath() + "/" + imageName);try {if(file.exists()) {file.delete();}ChartUtils.saveChartAsJPEG(file, chart, 800, 600);} catch (IOException e) {e.printStackTrace();}}3.2.2 生成图片效果
3.3 生成柱状图
3.3.1 调用方法
/*** 生成柱状图*/public static void testBarChart() throws Exception {//x轴名称列表List<String> xAxisNameList = new ArrayList<>(Arrays.asList("一级", "二级", "三级", "四级", "五级"));//图例名称列表List<String> legendNameList = new ArrayList<>(Arrays.asList("李四", "张三"));//数据列表List<List<Object>> dataList = new ArrayList<>();dataList.add(new ArrayList<>(Arrays.asList(100, 90, 5, 6, 2)));dataList.add(new ArrayList<>(Arrays.asList(2, 0, 3, 4, 5)));//图例背景颜色List<Color> legendColorList = new ArrayList<>(Arrays.asList(new Color(65, 105, 225)));JFreeChart chart = GenerateChartUtil.createBarChart("各级变化图", legendNameList, xAxisNameList, dataList, JFreeChartUtil.createChartTheme("宋体"), "y轴", "x轴",0d, 100d, legendColorList, true, "{2}%");//在D盘目录下生成图片File p = new File(imagePath);if (!p.exists()) {p.mkdirs();}String imageName = System.currentTimeMillis() + "_柱状图" + ".jpeg";File file = new File(p.getPath() + "/" + imageName);try {if(file.exists()) {file.delete();}ChartUtils.saveChartAsJPEG(file, chart, 800, 600);} catch (IOException e) {e.printStackTrace();}}3.3.2 生成图片效果
3.4 生成折线图
3.4.1 调用方法
/*** 生成折线图*/public static void lineChart() throws Exception {//x轴名称列表List<String> xAxisNameList = new ArrayList<>(Arrays.asList("一级", "二级", "三级", "四级", "五级"));//图例名称列表List<String> legendNameList = new ArrayList<>(Arrays.asList("李四", "张三","王五"));//数据列表List<List<Object>> dataList = new ArrayList<>();dataList.add(new ArrayList<>(Arrays.asList(1, 3, 5, 6, 2)));dataList.add(new ArrayList<>(Arrays.asList(2, 1, 3, 4, 5)));dataList.add(new ArrayList<>(Arrays.asList(5, 8, 4, 6, 4)));// 返回outputStream//GenerateChartUtil.createLineChart(response.getOutputStream(), "各级变化图", legendNameList, xAxisNameList// , dataList, JFreeChartUtil.createChartTheme("宋体"), "y轴", "x轴", 600, 400);JFreeChart chart = GenerateChartUtil.createLineChart("各级变化图", legendNameList, xAxisNameList, dataList, JFreeChartUtil.createChartTheme("宋体"), "y轴", "x轴");//在D盘目录下生成图片File p = new File(imagePath);if (!p.exists()) {p.mkdirs();}String imageName = System.currentTimeMillis() + "_折线图" + ".jpeg";File file = new File(p.getPath() + "/" + imageName);try {if(file.exists()) {file.delete();}ChartUtils.saveChartAsJPEG(file, chart, 800, 600);} catch (IOException e) {e.printStackTrace();}}3.4.2 生成图片效果
3.5 生成层叠柱状图
3.5.1 调用方法
/*** 层叠柱状图*/public static void stackedBarChart() throws Exception {//x轴名称列表List<String> xAxisNameList = new ArrayList<>(Arrays.asList("一级", "二级", "三级", "四级", "五级"));//图例名称列表List<String> legendNameList = new ArrayList<>(Arrays.asList("李四", "张三"));//数据列表List<List<Object>> dataList = new ArrayList<>();dataList.add(new ArrayList<>(Arrays.asList(1, 3, 5, 6, 2)));dataList.add(new ArrayList<>(Arrays.asList(2, 1, 3, 4, 5)));// 返回outputStream//GenerateChartUtil.createStackedBarChart(response.getOutputStream(), "各级变化图", legendNameList, xAxisNameList// , dataList, JFreeChartUtil.createChartTheme("宋体"), "y轴", "x轴", 600, 400);// 返回JFreeChartJFreeChart chart = GenerateChartUtil.createStackedBarChart("各级变化图", legendNameList, xAxisNameList, dataList, JFreeChartUtil.createChartTheme("宋体"), "y轴", "x轴");//在D盘目录下生成图片File p = new File(imagePath);if (!p.exists()) {p.mkdirs();}String imageName = System.currentTimeMillis() + "_层叠柱状图" + ".jpeg";File file = new File(p.getPath() + "/" + imageName);try {if(file.exists()) {file.delete();}ChartUtils.saveChartAsJPEG(file, chart, 800, 600);} catch (IOException e) {e.printStackTrace();}}3.5.2 生成图片效果
3.6 生成散点图
3.6.1 调用方法
/*** 生成散点图*/public static void scatterPlot() throws Exception {//设置散点图数据集//设置第一个XYSeries firefox = new XYSeries("火狐浏览器");firefox.add(1.0, 1.0);firefox.add(2.0, 4.0);firefox.add(3.0, 3.0);//设置第二个XYSeries chrome = new XYSeries("谷歌浏览器");chrome.add(1.0, 4.0);chrome.add(2.0, 5.0);chrome.add(3.0, 6.0);//设置第三个XYSeries ie = new XYSeries("IE刘浏览器");ie.add(3.0, 4.0);ie.add(4.0, 5.0);ie.add(5.0, 4.0);//添加到数据集XYSeriesCollection dataset = new XYSeriesCollection();dataset.addSeries(firefox);dataset.addSeries(chrome);dataset.addSeries(ie);// 返回outputStream// GenerateChartUtil.createScatterPlot(response.getOutputStream(), "各级变化图", dataset// , JFreeChartUtil.createChartTheme("宋体"), "y轴", "x轴", 600, 400);JFreeChart chart = GenerateChartUtil.createScatterPlot("各级变化图", dataset, JFreeChartUtil.createChartTheme("宋体"), "y轴", "x轴");//在D盘目录下生成图片File p = new File(imagePath);if (!p.exists()) {p.mkdirs();}String imageName = System.currentTimeMillis() + "_散点图" + ".jpeg";File file = new File(p.getPath() + "/" + imageName);try {if(file.exists()) {file.delete();}ChartUtils.saveChartAsJPEG(file, chart, 800, 600);} catch (IOException e) {e.printStackTrace();}}3.6.2 生成图片效果
3.7 雷达图
3.7.1 调用方法
/*** 生成雷达图*/public static void radar() throws IOException {DefaultCategoryDataset dataset = new DefaultCategoryDataset();String group1 = "华为";dataset.addValue(5, group1, "w1");dataset.addValue(6, group1, "w2");dataset.addValue(4, group1, "w3");dataset.addValue(2, group1, "w4");dataset.addValue(5, group1, "w5");dataset.addValue(5, group1, "w6");dataset.addValue(5, group1, "w7");dataset.addValue(8, group1, "w8");group1 = "苹果 ";dataset.addValue(2, group1, "w1");dataset.addValue(4, group1, "w2");dataset.addValue(4, group1, "w3");dataset.addValue(5, group1, "w4");dataset.addValue(5, group1, "w5");dataset.addValue(8, group1, "w6");dataset.addValue(9, group1, "w7");dataset.addValue(8, group1, "w8");SpiderWebPlot spiderwebplot = new SpiderWebPlot(dataset);JFreeChart chart = new JFreeChart("Test", TextTitle.DEFAULT_FONT, spiderwebplot, false);LegendTitle legendtitle = new LegendTitle(spiderwebplot);legendtitle.setPosition(RectangleEdge.TOP);chart.addSubtitle(legendtitle);//在D盘目录下生成图片File p = new File(imagePath);if (!p.exists()) {p.mkdirs();}String imageName = System.currentTimeMillis() + "_雷达图" + ".jpeg";File file = new File(p.getPath() + "/" + imageName);try {if(file.exists()) {file.delete();}ChartUtils.saveChartAsJPEG(file, chart, 800, 600);} catch (IOException e) {e.printStackTrace();}// 下方是生成的图片插入到excel文件中// excel2003工作表HSSFWorkbook wb = new HSSFWorkbook();// 创建工作表HSSFSheet sheet = wb.createSheet("Sheet 1");// 创建字节输出流ByteArrayOutputStream byteArrayOut = new ByteArrayOutputStream();// 读取chart信息至字节输出流ChartUtils.writeChartAsPNG(byteArrayOut, chart, 600, 300);// 画图的顶级管理器，一个sheet只能获取一个（一定要注意这点）HSSFPatriarch patriarch = sheet.createDrawingPatriarch();// anchor主要用于设置图片的属性HSSFClientAnchor anchor = new HSSFClientAnchor(0, 0, 0, 0, (short) 2, (short) 1, (short) 12, (short) 15);// anchor.setAnchorType(3);// 插入图片patriarch.createPicture(anchor, wb.addPicture(byteArrayOut.toByteArray(), HSSFWorkbook.PICTURE_TYPE_PNG));// excel2003后缀FileOutputStream fileOut = new FileOutputStream("D://雷达图.xls");wb.write(fileOut);fileOut.close();}3.7.2 生成图片效果
3.8 环形图
3.8.1 调用方法
/*** 生成环形图*/public static void ringChart() {DefaultPieDataset dataSet = new DefaultPieDataset();//使用循环向数据集合中添加数据int i,j;String []a={"Java","VC","C++","数据结构","计算机网络"};int []b={1964,820,825,960,1000};for(i=0,j=0;i<a.length&&j<b.length;i++,j++){dataSet.setValue(a[i],b[j]);}StandardChartTheme mChartTheme = new StandardChartTheme("CN");mChartTheme.setLargeFont(new Font("黑体", Font.BOLD, 14)); // Y柱标签字体（浓度(单位：ppm)）mChartTheme.setExtraLargeFont(new Font("宋体", Font.PLAIN, 20)); //标题 （二氧化碳浓度趋势分析图）//应用主题样式ChartFactory.setChartTheme(mChartTheme);//定义图标对象JFreeChart chart = ChartFactory.createRingChart ("环形图",// 报表题目，字符串类型dataSet, // 获得数据集true, // 显示图例false, // 不用生成工具false // 不用生成URL地址);//图表RingPlot ringplot=(RingPlot) chart.getPlot();ringplot.setLabelFont(new Font("宋体", Font.BOLD, 14));//用来显示标注的注解，{0}:{1}用来设置显示的格式ringplot.setLabelGenerator(new StandardPieSectionLabelGenerator("{0}:{1}"));// ringplot.setBackgroundPaint(Color.gray);//设置背景色//设置简单标签ringplot.setSimpleLabels(true);//标题TextTitle texttitle=chart.getTitle();texttitle.setFont(new Font("宋体", Font.BOLD, 30));//图示LegendTitle legendtitle =chart.getLegend();legendtitle.setItemFont(new Font("宋体", Font.BOLD, 14));/*ChartFrame mChartFrame = new ChartFrame("环形图", chart);mChartFrame.pack();mChartFrame.setVisible(true);*///在D盘目录下生成图片File p = new File(imagePath);if (!p.exists()) {p.mkdirs();}String imageName = System.currentTimeMillis() + "_环形图" + ".jpeg";File file = new File(p.getPath() + "/" + imageName);try {if(file.exists()) {file.delete();}ChartUtils.saveChartAsJPEG(file, chart, 800, 600);} catch (IOException e) {e.printStackTrace();}}3.8.2生成图片效果
3.9 仪表盘
3.9.1 调用方法
/*** 生成仪表盘*/public static void meter2(){//1,数据集合对象 此处为DefaultValueDatasetDefaultValueDataset dataset = new DefaultValueDataset();// 当前指针指向的位置，即：我们需要显示的数据dataset.setValue(12D);/*** 获取图表区域对象** A. setDataSet(int index, DataSet dataSet);* 为表盘设定使用的数据集，通常一个表盘上可能存在多个指针，* 因此需要制定该数据集与哪个指针相互关联。* 可以将指针想象成数据集的一种体现方式。*/DialPlot dialplot = new DialPlot();dialplot.setView(0.0D, 0.0D, 1.0D, 1.0D);dialplot.setDataset(0,dataset);/*** 开始设置显示框架结构* B. setDailFrame(DailFrame dailFrame);设置表盘的底层面板图像，通常表盘是整个仪表的最底层。*/DialFrame dialframe =new StandardDialFrame();dialplot.setDialFrame(dialframe);/*** 结束设置显示框架结构DialCap* C. setBackground(Color color);设置表盘的颜色，可以采用Java内置的颜色控制方式来调用该方法。*/GradientPaint gradientpaint = new GradientPaint(new Point(), new Color(255, 255, 255), new Point(), new Color(170, 170, 220));DialBackground dialbackground = new DialBackground(gradientpaint);dialbackground.setGradientPaintTransformer(new StandardGradientPaintTransformer(GradientPaintTransformType.VERTICAL));dialplot.setBackground(dialbackground);// 设置显示在表盘中央位置的信息DialTextAnnotation dialtextannotation = new DialTextAnnotation("温度");dialtextannotation.setFont(new Font("Dialog", 1, 14));dialtextannotation.setRadius(0.69999999999999996D);dialplot.addLayer(dialtextannotation);DialValueIndicator dialvalueindicator = new DialValueIndicator(0);dialplot.addLayer(dialvalueindicator);// 根据表盘的直径大小（0.75），设置总刻度范围/*** E. addScale(int index, DailScale dailScale);* 用于设定表盘上的量程，index指明该量程属于哪一个指针所指向的数据集，* DailScale指明该量程的样式，如量程的基本单位等信息。** StandardDialScale(double lowerBound, double upperBound, double startAngle,* double extent, double majorTickIncrement, int minorTickCount)* new StandardDialScale(-40D, 60D, -120D, -300D,30D);*///StandardDialScale standarddialscale =new StandardDialScale();standarddialscale.setLowerBound(-40D);standarddialscale.setUpperBound(60D);standarddialscale.setStartAngle(-120D);standarddialscale.setExtent(-300D);standarddialscale.setTickRadius(0.88D);standarddialscale.setTickLabelOffset(0.14999999999999999D);standarddialscale.setTickLabelFont(new Font("Dialog", 0, 14));dialplot.addScale(0, standarddialscale);/*** F. addLayer(DailRange dailRange);* 用于设定某一特定量程的特殊表现，通常位于量程之下，如红色范围标注，绿色范围标注等。* 在调用该方法之前需要设定DailRange的一些信息，包括位置信息，颜色信息等等。*///设置刻度范围（红色）StandardDialRange standarddialrange = new StandardDialRange(40D, 60D, Color.red);standarddialrange.setInnerRadius(0.52000000000000002D);standarddialrange.setOuterRadius(0.55000000000000004D);dialplot.addLayer(standarddialrange);//设置刻度范围（橘黄色）StandardDialRange standarddialrange1 = new StandardDialRange(10D, 40D, Color.orange);standarddialrange1.setInnerRadius(0.52000000000000002D);standarddialrange1.setOuterRadius(0.55000000000000004D);dialplot.addLayer(standarddialrange1);//设置刻度范围（绿色）StandardDialRange standarddialrange2 = new StandardDialRange(-40D, 10D, Color.green);standarddialrange2.setInnerRadius(0.52000000000000002D);standarddialrange2.setOuterRadius(0.55000000000000004D);dialplot.addLayer(standarddialrange2);/*** 设置指针* G. addPointer(DailPointer dailPointer);* 用于设定表盘使用的指针样式，JFreeChart中有很多可供选择指针样式，* 用户可以根据使用需要，采用不同的DailPoint的实现类来调用该方法*/DialPointer.Pointer pointer = new DialPointer.Pointer(); //内部内dialplot.addPointer(pointer); //addLayer(pointer);/*** 实例化DialCap* H. setCap(DailCap dailCap);设定指针上面的盖帽的样式。*/DialCap dialcap = new DialCap();dialcap.setRadius(0.10000000000000001D);dialplot.setCap(dialcap);//生成chart对象JFreeChart jfreechart = new JFreeChart(dialplot);//设置标题jfreechart.setTitle("设备取水温度采样");//在D盘目录下生成图片File p = new File(imagePath);if (!p.exists()) {p.mkdirs();}String imageName = System.currentTimeMillis() + "_仪表盘2" + ".jpeg";File file = new File(p.getPath() + "/" + imageName);try {if(file.exists()) {file.delete();}ChartUtils.saveChartAsJPEG(file, jfreechart, 500, 500);} catch (IOException e) {e.printStackTrace();}/* ChartFrame frame = new ChartFrame("CityInfoPort公司组织架构图 ", jfreechart,true);frame.pack();//屏幕居中RefineryUtilities.centerFrameOnScreen(frame);frame.setVisible(true);*/}3.9.2 生成图片效果
4、项目实际使用
package com.shucha.deveiface.web.controller;import com.shucha.deveiface.biz.utils.GenerateChartUtil;
import com.shucha.deveiface.biz.utils.GeneratePieChartUtil;
import com.shucha.deveiface.biz.utils.JFreeChartUtil;
import org.jfree.chart.JFreeChart;
import org.jfree.data.xy.XYSeries;
import org.jfree.data.xy.XYSeriesCollection;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletResponse;
import java.awt.*;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;/*** @author tqf* @Description 图表生成图片下载测试* @Version 1.0* @since 2022-06-07 10:23*/
@RequestMapping("/jFreeChart")
@RestController
public class JFreeChartController {/*** 折线图* @param response*/@GetMapping("/lineChart")public void lineChart(HttpServletResponse response) throws Exception {//x轴名称列表List<String> xAxisNameList = new ArrayList<>(Arrays.asList("一级", "二级", "三级", "四级", "五级"));//图例名称列表List<String> legendNameList = new ArrayList<>(Arrays.asList("李四", "张三"));//数据列表List<List<Object>> dataList = new ArrayList<>();dataList.add(new ArrayList<>(Arrays.asList(1, 3, 5, 6, 2)));dataList.add(new ArrayList<>(Arrays.asList(2, 1, 3, 4, 5)));// 1、下面注释的是直接返回图片到前端// GenerateChartUtil.createLineChart(response.getOutputStream(), "各级变化图", legendNameList, xAxisNameList// , dataList, JFreeChartUtil.createChartTheme("宋体"), "y轴", "x轴", 600, 400);// 下面的是下载生成的图片byte[] byteArray = GenerateChartUtil.createLineChart("各级变化图", legendNameList, xAxisNameList, dataList, JFreeChartUtil.createChartTheme("宋体"), "y轴", "x轴", 600, 400);response.setContentType("application/vnd.ms-image/jpeg");response.setCharacterEncoding("utf-8");String imageName = System.currentTimeMillis() + "_折线图" + ".jpeg";String fileName = URLEncoder.encode(imageName, "UTF-8");response.setHeader("Content-disposition", "attachment;filename=" + fileName);ServletOutputStream output = response.getOutputStream();output.write(byteArray);output.flush();}/*** 散点图* @param response*/@GetMapping("/scatterPlot")public void scatterPlot(HttpServletResponse response) throws Exception {//设置散点图数据集//设置第一个XYSeries firefox = new XYSeries("Firefox");firefox.add(1.0, 1.0);firefox.add(2.0, 4.0);firefox.add(3.0, 3.0);//设置第二个XYSeries chrome = new XYSeries("Chrome");chrome.add(1.0, 4.0);chrome.add(2.0, 5.0);chrome.add(3.0, 6.0);//设置第三个XYSeries ie = new XYSeries("IE");ie.add(3.0, 4.0);ie.add(4.0, 5.0);ie.add(5.0, 4.0);//添加到数据集XYSeriesCollection dataset = new XYSeriesCollection();dataset.addSeries(firefox);dataset.addSeries(chrome);dataset.addSeries(ie);// 这个是直接返回图片到前端GenerateChartUtil.createScatterPlot(response.getOutputStream(), "各级变化图", dataset, JFreeChartUtil.createChartTheme("宋体"), "y轴", "x轴", 600, 400);// 下面的是下载生成的图片byte[] byteArray = GenerateChartUtil.createScatterPlot("各级变化图", dataset, JFreeChartUtil.createChartTheme("宋体"), "y轴", "x轴", 600, 400);response.setContentType("application/vnd.ms-image/jpeg");response.setCharacterEncoding("utf-8");String imageName = System.currentTimeMillis() + "_散点图" + ".jpeg";String fileName = URLEncoder.encode(imageName, "UTF-8");response.setHeader("Content-disposition", "attachment;filename=" + fileName);ServletOutputStream output = response.getOutputStream();output.write(byteArray);output.flush();}/*** 堆叠柱状图* @param response*/@GetMapping("/stackedBarChart")public void stackedBarChart(HttpServletResponse response) throws Exception {//x轴名称列表List<String> xAxisNameList = new ArrayList<>(Arrays.asList("一级", "二级", "三级", "四级", "五级"));//图例名称列表List<String> legendNameList = new ArrayList<>(Arrays.asList("李四", "张三"));//数据列表List<List<Object>> dataList = new ArrayList<>();dataList.add(new ArrayList<>(Arrays.asList(1, 3, 5, 6, 2)));dataList.add(new ArrayList<>(Arrays.asList(2, 1, 3, 4, 5)));// 这个是直接返回图片到前端GenerateChartUtil.createStackedBarChart(response.getOutputStream(), "各级变化图", legendNameList, xAxisNameList, dataList, JFreeChartUtil.createChartTheme("宋体"), "y轴", "x轴", 600, 400);// 下面的是下载生成的图片byte[] byteArray = GenerateChartUtil.createStackedBarChart("各级变化图", legendNameList, xAxisNameList, dataList, JFreeChartUtil.createChartTheme("宋体"), "y轴", "x轴", 600, 400);response.setContentType("application/vnd.ms-image/jpeg");response.setCharacterEncoding("utf-8");String imageName = System.currentTimeMillis() + "_堆叠柱状图" + ".jpeg";String fileName = URLEncoder.encode(imageName, "UTF-8");response.setHeader("Content-disposition", "attachment;filename=" + fileName);ServletOutputStream output = response.getOutputStream();output.write(byteArray);output.flush();}/*** 柱状图* @param response*/@GetMapping("/barChart")public void barChart(HttpServletResponse response) throws Exception {//x轴名称列表List<String> xAxisNameList = new ArrayList<>(Arrays.asList("一级", "二级", "三级", "四级", "五级"));//图例名称列表List<String> legendNameList = new ArrayList<>(Arrays.asList("李四", "张三"));//数据列表List<List<Object>> dataList = new ArrayList<>();dataList.add(new ArrayList<>(Arrays.asList(100, 90, 5, 6, 2)));dataList.add(new ArrayList<>(Arrays.asList(2, 0, 3, 4, 5)));//图例背景颜色List<Color> legendColorList = new ArrayList<>(Arrays.asList(new Color(65, 105, 225)));// 这个是直接返回图片到前端GenerateChartUtil.createBarChart(response.getOutputStream(), "各级变化图", legendNameList, xAxisNameList, dataList, JFreeChartUtil.createChartTheme("宋体"), "y轴", "x轴", 600, 400, 0d, 100d, legendColorList, true, "{2}%");// 下面的是下载生成的图片byte[] byteArray = GenerateChartUtil.createBarChart("各级变化图", legendNameList, xAxisNameList, dataList, JFreeChartUtil.createChartTheme("宋体"), "y轴", "x轴", 600, 400, 0d, 100d, legendColorList, true, "{2}%");response.setContentType("application/vnd.ms-image/jpeg");response.setCharacterEncoding("utf-8");String imageName = System.currentTimeMillis() + "_堆叠柱状图" + ".jpeg";String fileName = URLEncoder.encode(imageName, "UTF-8");response.setHeader("Content-disposition", "attachment;filename=" + fileName);ServletOutputStream output = response.getOutputStream();output.write(byteArray);output.flush();}/*** 饼图* @param response* @throws Exception*/@GetMapping("/pie")public void pie(HttpServletResponse response) throws Exception {//图例名称列表List<String> legendNameList = new ArrayList<>(Arrays.asList("一级", "二级", "三级", "四级", "五级"));//数据列表List<Object> dataList = new ArrayList<>(Arrays.asList(1, 3, 5, 6, 2));//图例背景颜色列表List<Color> legendColorList = new ArrayList<>(Arrays.asList(Color.YELLOW, Color.GRAY, Color.green, Color.cyan, Color.ORANGE));//偏离百分比数据List<Double> explodePercentList = new ArrayList<>(Arrays.asList(0.1, 0.1, 0.1, 0.1, 0.1));// 这个是直接返回图片到前端GeneratePieChartUtil.createPieChart(response.getOutputStream(),"各级占比情况", legendNameList, dataList,600,400, JFreeChartUtil.createChartTheme("宋体"), legendColorList, explodePercentList);// 下面的是下载生成的图片byte[] byteArray = GeneratePieChartUtil.createPieChart("各级占比情况", legendNameList, dataList,400,600,JFreeChartUtil.createChartTheme("宋体"), legendColorList, explodePercentList);response.setContentType("application/vnd.ms-image/jpeg");response.setCharacterEncoding("utf-8");String imageName = System.currentTimeMillis() + "_饼图" + ".jpeg";String fileName = URLEncoder.encode(imageName, "UTF-8");response.setHeader("Content-disposition", "attachment;filename=" + fileName);ServletOutputStream output = response.getOutputStream();output.write(byteArray);output.flush();}
}4.1 折线图下载
/*** 折线图* @param response*/@GetMapping("/lineChart")public void lineChart(HttpServletResponse response) throws Exception {//x轴名称列表List<String> xAxisNameList = new ArrayList<>(Arrays.asList("一级", "二级", "三级", "四级", "五级"));//图例名称列表List<String> legendNameList = new ArrayList<>(Arrays.asList("李四", "张三"));//数据列表List<List<Object>> dataList = new ArrayList<>();dataList.add(new ArrayList<>(Arrays.asList(1, 3, 5, 6, 2)));dataList.add(new ArrayList<>(Arrays.asList(2, 1, 3, 4, 5)));// 1、下面注释的是直接返回图片到前端// GenerateChartUtil.createLineChart(response.getOutputStream(), "各级变化图", legendNameList, xAxisNameList// , dataList, JFreeChartUtil.createChartTheme("宋体"), "y轴", "x轴", 600, 400);// 下面的是下载生成的图片byte[] byteArray = GenerateChartUtil.createLineChart("各级变化图", legendNameList, xAxisNameList, dataList, JFreeChartUtil.createChartTheme("宋体"), "y轴", "x轴", 600, 400);response.setContentType("application/vnd.ms-image/jpeg");response.setCharacterEncoding("utf-8");String imageName = System.currentTimeMillis() + "_折线图" + ".jpeg";String fileName = URLEncoder.encode(imageName, "UTF-8");response.setHeader("Content-disposition", "attachment;filename=" + fileName);ServletOutputStream output = response.getOutputStream();output.write(byteArray);output.flush();}4.2 散点图下载
/*** 散点图* @param response*/@GetMapping("/scatterPlot")public void scatterPlot(HttpServletResponse response) throws Exception {//设置散点图数据集//设置第一个XYSeries firefox = new XYSeries("Firefox");firefox.add(1.0, 1.0);firefox.add(2.0, 4.0);firefox.add(3.0, 3.0);//设置第二个XYSeries chrome = new XYSeries("Chrome");chrome.add(1.0, 4.0);chrome.add(2.0, 5.0);chrome.add(3.0, 6.0);//设置第三个XYSeries ie = new XYSeries("IE");ie.add(3.0, 4.0);ie.add(4.0, 5.0);ie.add(5.0, 4.0);//添加到数据集XYSeriesCollection dataset = new XYSeriesCollection();dataset.addSeries(firefox);dataset.addSeries(chrome);dataset.addSeries(ie);// 这个是直接返回图片到前端GenerateChartUtil.createScatterPlot(response.getOutputStream(), "各级变化图", dataset, JFreeChartUtil.createChartTheme("宋体"), "y轴", "x轴", 600, 400);// 下面的是下载生成的图片byte[] byteArray = GenerateChartUtil.createScatterPlot("各级变化图", dataset, JFreeChartUtil.createChartTheme("宋体"), "y轴", "x轴", 600, 400);response.setContentType("application/vnd.ms-image/jpeg");response.setCharacterEncoding("utf-8");String imageName = System.currentTimeMillis() + "_散点图" + ".jpeg";String fileName = URLEncoder.encode(imageName, "UTF-8");response.setHeader("Content-disposition", "attachment;filename=" + fileName);ServletOutputStream output = response.getOutputStream();output.write(byteArray);output.flush();}4.3 堆叠柱状图下载
/*** 堆叠柱状图* @param response*/@GetMapping("/stackedBarChart")public void stackedBarChart(HttpServletResponse response) throws Exception {//x轴名称列表List<String> xAxisNameList = new ArrayList<>(Arrays.asList("一级", "二级", "三级", "四级", "五级"));//图例名称列表List<String> legendNameList = new ArrayList<>(Arrays.asList("李四", "张三"));//数据列表List<List<Object>> dataList = new ArrayList<>();dataList.add(new ArrayList<>(Arrays.asList(1, 3, 5, 6, 2)));dataList.add(new ArrayList<>(Arrays.asList(2, 1, 3, 4, 5)));// 这个是直接返回图片到前端GenerateChartUtil.createStackedBarChart(response.getOutputStream(), "各级变化图", legendNameList, xAxisNameList, dataList, JFreeChartUtil.createChartTheme("宋体"), "y轴", "x轴", 600, 400);// 下面的是下载生成的图片byte[] byteArray = GenerateChartUtil.createStackedBarChart("各级变化图", legendNameList, xAxisNameList, dataList, JFreeChartUtil.createChartTheme("宋体"), "y轴", "x轴", 600, 400);response.setContentType("application/vnd.ms-image/jpeg");response.setCharacterEncoding("utf-8");String imageName = System.currentTimeMillis() + "_堆叠柱状图" + ".jpeg";String fileName = URLEncoder.encode(imageName, "UTF-8");response.setHeader("Content-disposition", "attachment;filename=" + fileName);ServletOutputStream output = response.getOutputStream();output.write(byteArray);output.flush();}4.4 柱状图下载
/*** 柱状图* @param response*/@GetMapping("/barChart")public void barChart(HttpServletResponse response) throws Exception {//x轴名称列表List<String> xAxisNameList = new ArrayList<>(Arrays.asList("一级", "二级", "三级", "四级", "五级"));//图例名称列表List<String> legendNameList = new ArrayList<>(Arrays.asList("李四", "张三"));//数据列表List<List<Object>> dataList = new ArrayList<>();dataList.add(new ArrayList<>(Arrays.asList(100, 90, 5, 6, 2)));dataList.add(new ArrayList<>(Arrays.asList(2, 0, 3, 4, 5)));//图例背景颜色List<Color> legendColorList = new ArrayList<>(Arrays.asList(new Color(65, 105, 225)));// 这个是直接返回图片到前端GenerateChartUtil.createBarChart(response.getOutputStream(), "各级变化图", legendNameList, xAxisNameList, dataList, JFreeChartUtil.createChartTheme("宋体"), "y轴", "x轴", 600, 400, 0d, 100d, legendColorList, true, "{2}%");// 下面的是下载生成的图片byte[] byteArray = GenerateChartUtil.createBarChart("各级变化图", legendNameList, xAxisNameList, dataList, JFreeChartUtil.createChartTheme("宋体"), "y轴", "x轴", 600, 400, 0d, 100d, legendColorList, true, "{2}%");response.setContentType("application/vnd.ms-image/jpeg");response.setCharacterEncoding("utf-8");String imageName = System.currentTimeMillis() + "_堆叠柱状图" + ".jpeg";String fileName = URLEncoder.encode(imageName, "UTF-8");response.setHeader("Content-disposition", "attachment;filename=" + fileName);ServletOutputStream output = response.getOutputStream();output.write(byteArray);output.flush();}4.5 饼图下载
/*** 饼图* @param response* @throws Exception*/@GetMapping("/pie")public void pie(HttpServletResponse response) throws Exception {//图例名称列表List<String> legendNameList = new ArrayList<>(Arrays.asList("一级", "二级", "三级", "四级", "五级"));//数据列表List<Object> dataList = new ArrayList<>(Arrays.asList(1, 3, 5, 6, 2));//图例背景颜色列表List<Color> legendColorList = new ArrayList<>(Arrays.asList(Color.YELLOW, Color.GRAY, Color.green, Color.cyan, Color.ORANGE));//偏离百分比数据List<Double> explodePercentList = new ArrayList<>(Arrays.asList(0.1, 0.1, 0.1, 0.1, 0.1));// 这个是直接返回图片到前端GeneratePieChartUtil.createPieChart(response.getOutputStream(),"各级占比情况", legendNameList, dataList,600,400, JFreeChartUtil.createChartTheme("宋体"), legendColorList, explodePercentList);// 下面的是下载生成的图片byte[] byteArray = GeneratePieChartUtil.createPieChart("各级占比情况", legendNameList, dataList,400,600,JFreeChartUtil.createChartTheme("宋体"), legendColorList, explodePercentList);response.setContentType("application/vnd.ms-image/jpeg");response.setCharacterEncoding("utf-8");String imageName = System.currentTimeMillis() + "_饼图" + ".jpeg";String fileName = URLEncoder.encode(imageName, "UTF-8");response.setHeader("Content-disposition", "attachment;filename=" + fileName);ServletOutputStream output = response.getOutputStream();output.write(byteArray);output.flush();}5、参考文章
参考文章地址https://blog.csdn.net/qq_38974638/article/details/118704969整合了一下我项目实际使用
Java通过JFreeChart实现(饼图、柱状图、层叠柱状图、折线图、散点图、雷达图、环形图、仪表盘图、XY图)生成图片和下载相关推荐
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