poi在Excel中创建折线图

效果

代码

import org.apache.poi.ss.usermodel.*;
import org.apache.poi.ss.usermodel.charts.*;
import org.apache.poi.ss.util.CellRangeAddress;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;import java.io.FileOutputStream;public class LineChartDemo {public static void main(String[] args) throws Exception {Workbook wb = new XSSFWorkbook();Sheet sheet = wb.createSheet("linechart");final int NUM_OF_ROWS = 3;final int NUM_OF_COLUMNS = 10;// Create a row and put some cells in it. Rows are 0 based.Row row;Cell cell;for (int rowIndex = 0; rowIndex < NUM_OF_ROWS; rowIndex++) {row = sheet.createRow((short) rowIndex);for (int colIndex = 0; colIndex < NUM_OF_COLUMNS; colIndex++) {cell = row.createCell((short) colIndex);cell.setCellValue(colIndex * (rowIndex + 1));}}Drawing drawing = sheet.createDrawingPatriarch();ClientAnchor anchor = drawing.createAnchor(0, 0, 0, 0, 0, 5, 10, 15);Chart chart = drawing.createChart(anchor);ChartLegend legend = chart.getOrCreateLegend();legend.setPosition(LegendPosition.TOP_RIGHT);LineChartData data = chart.getChartDataFactory().createLineChartData();// Use a category axis for the bottom axis.ChartAxis bottomAxis = chart.getChartAxisFactory().createCategoryAxis(AxisPosition.BOTTOM);ValueAxis leftAxis = chart.getChartAxisFactory().createValueAxis(AxisPosition.LEFT);leftAxis.setCrosses(AxisCrosses.AUTO_ZERO);ChartDataSource<Number> xs = DataSources.fromNumericCellRange(sheet, new CellRangeAddress(0, 0, 0, NUM_OF_COLUMNS - 1));ChartDataSource<Number> ys1 = DataSources.fromNumericCellRange(sheet, new CellRangeAddress(1, 1, 0, NUM_OF_COLUMNS - 1));ChartDataSource<Number> ys2 = DataSources.fromNumericCellRange(sheet, new CellRangeAddress(2, 2, 0, NUM_OF_COLUMNS - 1));LineChartSeries lineChartSeries1 = data.addSeries(xs, ys1);LineChartSeries lineChartSeries2 = data.addSeries(xs, ys2);//设置图例lineChartSeries1.setTitle("加多宝");lineChartSeries2.setTitle("王老吉");chart.plot(data, bottomAxis, leftAxis);// Write the output to a fileFileOutputStream fileOut = new FileOutputStream("D://line_demo.xlsx");wb.write(fileOut);fileOut.close();}
}

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poi在Excel中创建折线图

效果

代码

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