import java.awt.Image;
import java.awt.image.BufferedImage;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Iterator;import javax.imageio.IIOImage;
import javax.imageio.ImageIO;
import javax.imageio.ImageWriteParam;
import javax.imageio.ImageWriter;/*** * @ClassName: ImageBiz* @Description:压缩图片方法*/
public class ImageBizUtil {/*** * @Title: imageZip* @Description: 根据分辨率压缩图片* @param oldByte 源图片字节* @param width 压缩图片的宽* @param height 压缩图片的高* @return* @throws IOException* @return: byte[]* @throws*/public static byte[] imageZip(byte[] oldByte, int width, int height) throws IOException {ByteArrayOutputStream os = null;InputStream inputStream = null;try {inputStream = new ByteArrayInputStream(oldByte);// 用系统缓存ImageIO.setUseCache(false);// 或者设定一个缓存路径// ImageIO.setCacheDirectory(File cacheDirectory);BufferedImage image = ImageIO.read(inputStream);// 为等比缩放计算输出的图片宽度及高度int imageWidth = image.getWidth(null);int imageHeight = image.getHeight(null);float ratio = getRatio(imageWidth, imageHeight, width, height);int newWidth = (int) (ratio * imageWidth);int newHeight = (int) (ratio * imageHeight);BufferedImage newBufferedImage =new BufferedImage((int) newWidth, (int) newHeight, BufferedImage.TYPE_INT_RGB);newBufferedImage.getGraphics().drawImage(image.getScaledInstance(newWidth, newHeight, Image.SCALE_SMOOTH), 0, 0, null);Iterator<ImageWriter> iter = ImageIO.getImageWritersByFormatName("jpeg");ImageWriter imageWriter = iter.next();ImageWriteParam iwp = imageWriter.getDefaultWriteParam();iwp.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);os = new ByteArrayOutputStream(oldByte.length);imageWriter.setOutput(ImageIO.createImageOutputStream(os));IIOImage iio_image = new IIOImage(newBufferedImage, null, null);imageWriter.write(null, iio_image, iwp);os.flush();byte[] newBytes = os.toByteArray();return newBytes;} catch (IOException e) {throw e;} finally {if (os != null) {os.close();}if (inputStream != null) {inputStream.close();}}}/*** * @Title: getRatio* @Description: 压缩比例算法* @param imageWidth 原图片宽* @param imageHeight 原图片高* @param width 压缩后的图片宽* @param height 压缩后的图片高* @return* @return: float*/public static float getRatio(int imageWidth, int imageHeight, int width, int height) {float Ratio = 1.0f;float widthRatio = (float) width / imageWidth;float heightRatio = (float) height / imageHeight;if (widthRatio < 1.0 || heightRatio < 1.0) {Ratio = widthRatio <= heightRatio ? widthRatio : heightRatio;}return Ratio;}
}

//海报上传public BaseResult uploadPosterInfomation(List<GoPhosterInfomationPo> list){//创建返参对象BaseResult baseResult = new BaseResult();for (int i = 0; i < list.size(); i++) {if (StringUtils.isBlank(list.get(i).getTypeCode())) {baseResult.setRet(BaseResult.BIZ_ERROR);baseResult.setMsg("请录入海报类型");return baseResult;}if (StringUtils.isBlank(list.get(i).getPhosterImage())) {baseResult.setRet(BaseResult.BIZ_ERROR);baseResult.setMsg("请选择要保存的海报模板");return baseResult;}//设置海报唯一标识
      list.get(i).setPhosterId(UUIDUtil.genUUID2());//设置海报序号Integer maxNum = posterMakeFunctionMapper.queryMaxNum();if (maxNum == null || maxNum == 0) {list.get(i).setOrderNumber(1);}else{list.get(i).setOrderNumber(maxNum+1);}//将base64图片转为二进制byte[] imgByt = ImageUtil.getImageByte(list.get(i).getPhosterImage());byte[] imgZip = null;//压缩之后的图片try {imgZip = ImageBizUtil.imageZip(imgByt, 200, 200);} catch (IOException e) {e.printStackTrace();}String imgStr = ImageUtil.getImageStr(imgZip);list.get(i).setPhosterImageZip("data:image/png;base64,"+imgStr);//保存海报
      posterMakeFunctionMapper.uploadPosterInfomation(list.get(i));}

1.到windows环境下找到微软雅黑字体库，C:\Windows\Fonts。msyf.ttf（微软雅黑）)
2.到linux环境下创建目录
mkdir -pv /usr/share/fonts/chinese/TrueType
使用rz命令，将字体放入目录下rz
cd /usr/share/fonts/chinese/TrueType
chmod 755 * 为字体赋予可执行权限
3.建立字体缓存
# mkfontscale （如果提示 mkfontscale: command not found，需自行安装 # yum install mkfontscale ）
# mkfontdir
# fc-cache -fv （如果提示 fc-cache: command not found，则需要安装# yum install fontconfig ）
4.reboot重启系统

package cn.picclife.mwx.salesupport.phoster.service.impl;import java.awt.Font;
import java.awt.FontFormatException;
import java.io.File;
import java.io.IOException;import cn.picclife.mwx.salesupport.marketactivity.util.ParsePDFUtil;/***
* @ClassName: FontUtil
* @Description: TODO(根据项目中的字体库，获取Font的工具类)
* @author yabo.liu
* @date 2018年9月25日 下午3:54:32
**/
public class FontUtil {/*** * @Title: getFont * @Description: TODO(根据项目字体库，获取Font) * @param @param size* @param @return    设定文件 * @return Font    返回类型 * @date 2018年9月25日 下午3:55:59* @throws*/public static Font getFont(float size,String path) {String caPath = ParsePDFUtil.class.getClassLoader().getResource("ca").getPath().toString();String fontPath = caPath + path;try {Font dynamicFont = Font.createFont(Font.TRUETYPE_FONT, new File(fontPath));dynamicFont = dynamicFont.deriveFont(size);return dynamicFont;}catch (FontFormatException e) {e.printStackTrace();}catch(IOException e){e.printStackTrace();}return null;}}