画像のダウンロード時にネストされた背景図と文字

1.ネットワークファイルのダウンロード

 @GetMapping("downgd")
@ResponseBody
public Result downloadNet(HttpServletResponse response,String path) throws MalformedURLException {
//       
 Result result = new Result();
         URL url = new URL(path);
    try {
        UUID uuid = UUID.randomUUID();
        URLConnection conn = url.openConnection();                 InputStream in = conn.getInputStream();
        OutputStream out = response.getOutputStream();
        response.setHeader("content-disposition","
        attachment;
        filename=" +URLEncoder.encode(uuid+".jpg", "UTF-8"));
        byte [] by = new byte[1024];
        int i = 0;
        while((i=in.read(by))!=-1)
        {
            out.write(by,0,i);//       
        }
 //              
//FileOutputStream fs = 
//      new FileOutputStream("e:/"+uuid+".jpg");
//byte[] buffer = new byte[1204];
//int length;
//while ((byteread = inStream.read(buffer)) != -1) {
//        bytesum += byteread;
//        fs.write(buffer, 0, byteread);
//}
        
        in.close();
    }catch (Exception e){
        e.printStackTrace();
        result.setCode(Result.Code.SYSTEMERROR);
    }
    return result;
}

2.画像合成に文字を追加
1、BatchNumberUtilsツール類

package com.cy.file_onload.qrCode;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.UUID;
import java.util.concurrent.atomic.AtomicInteger;
public class BatchNumberUtils {
    private static final SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyyMMddHHmmss");
    private static final SimpleDateFormat dateFormat = new SimpleDateFormat("yyyyMMdd");
    private static final AtomicInteger atomicInteger = new AtomicInteger(1000000);

//            
//@param no       
//  @return    、      

public static synchronized String getOrderNoByUUID(String no) {
        Integer uuidHashCode = UUID.randomUUID().toString().hashCode();
        if (uuidHashCode < 0) {
            uuidHashCode = uuidHashCode * (-1);
        }
        String date = simpleDateFormat.format(new Date());
        return no + date + uuidHashCode;
    }

 //                 
 //@param no       
 // @return            
public static synchronized String getOrderNoByAtomic(String no) {
        atomicInteger.getAndIncrement();
        int i = atomicInteger.get();
        String date = simpleDateFormat.format(new Date());
        return no + date + i;
    }
    
 //              
 //@param name      
 // @return       
public static synchronized String getFileNameByDate(String name) {
        String date = dateFormat.format(new Date());
        return name +"/"+ date;
     }
  }

2、画像合成全コード

@Controller
@RequestMapping("/test/")
public class ResumeTemplateServiceImpl {
private static String 
ComposeFileNameManual = "compose_images";


  //   url       ，         ，
 //        ，  upload_flowChart
 

 private String resourceHandler="/upload_flowChart/";

 
 //           ，  @Value      
 //         ，  E:/java/upload_flowChart
 

 private String uploadImagesLocation = "E://";

 
 //      * @param templatePath     
 // @param seedPath      
 // @return      
 
 @RequestMapping("imgAdd")
public String composePic(String templatePath, String seedPath) {
        templatePath = "      ";
        seedPath = "      ";
try {
//   
 String picName = UUID.randomUUID().toString() + ".jpg";
//       
 String composeFileName = BatchNumberUtils.getFileNameByDate(ComposeFileNameManual);
//       
 File pathFile = new File(uploadImagesLocation + File.separator + composeFileName);
//      
 String path = uploadImagesLocation + File.separator + composeFileName + File.separator + picName;
//       
 String dataPath = resourceHandler.substring(0, resourceHandler.length() - 2) + composeFileName + "/" + picName;
     if (seedPath == null) {
        File file = new File(seedPath);
          if (!file.isFile()) {
            System.out.println("           ");
        }
           System.out.println("        ");
      }
         if (templatePath == null) {
          File file = new File(templatePath);
            if (!file.isFile()) {
            System.out.println("            ");
             }
               System.out.println("         ");
            }
            if (!pathFile.exists()) {
                pathFile.mkdirs();
            }
//---------------------------------      -----------------------------
 //   File templateFlie = new File(templatePath);
            BufferedImage bg = ImageIO.read(templateFlie);//      
 int height = bg.getHeight();//      
 int width = bg.getWidth();  //      
 BufferedImage qcCode = ImageIO.read(new File(seedPath));  //        300 * 300
 BufferedImage img = new BufferedImage(184, 312, BufferedImage.TYPE_INT_RGB);//    
 Graphics g = img.getGraphics();//         
 //        g.drawImage(bg.getScaledInstance(184, 312, Image.SCALE_DEFAULT), 0, 0, null); //        
 //                    /*    g.drawImage(qcCode.getScaledInstance(width / 4, width / 4, Image.SCALE_DEFAULT),
 width - (width / 4)-10, height - (width / 4)- 10, null); //        */ //       ，  
 g.drawImage(qcCode.getScaledInstance(180, 180, Image.SCALE_DEFAULT),
                    1, height/23, null); //        
 Font font = new Font("    ", Font.PLAIN, 15);//          
 g.setFont(font);
            g.setColor(Color.BLACK);
//              
 String lastChar = "  ".substring("  ".length() - 1);
//         
 String newUserName = "  ".substring(0, 1) + "**" + lastChar + "     ";
//       
 g.drawString(newUserName, 2, 270);
//    
 g.dispose();
ImageIO.write(img, "jpg", new File(path));
System.out.println("      ，  ：" + path);
File file = new File(path);
System.out.println(file);
//         
 return dataPath;
 } catch (Exception e) {
return e.getMessage();
//throw new CustomException("      ", 400);
 }
    }
}