SpringBoot接收后端上传的图片

导入依赖

 
     commons-fileupload
     commons-fileupload
     1.3.3
 

controller

 package com.lixianhe.controller;
 ​
 import org.springframework.core.io.ClassPathResource;
 import org.springframework.web.bind.annotation.*;
 import org.springframework.web.multipart.MultipartFile;
 ​
 ​
 import java.io.*;
 import java.util.UUID;
 ​
 ​
 /**
  * @author 李显赫
  * @Date 2022-05-05 23:15
  */
 @RestController
 public class UploadController {
 ​
     @RequestMapping(value = "/load", method = RequestMethod.POST, consumes ="multipart/form-data")
     public String getFile(@RequestParam("file") MultipartFile file) throws IOException {
 ​
         System.out.println("收到请求");
         if (file.isEmpty()) {
             return "上传失败，请选择文件";
         }
         String fileName=file.getOriginalFilename();
         //String fileName = UUID.randomUUID().toString().replaceAll("-", "").toUpperCase();
         System.out.println("文件名为："+fileName);
         assert fileName != null;
         String suffixName = fileName.substring(fileName.lastIndexOf("."));
         System.out.println("文件的后缀名为：" + suffixName);
         String newfileName= UUID.randomUUID().toString()
                 .replaceAll("-", "")
                 .toUpperCase()
                 +System.currentTimeMillis()
                 +suffixName;
         System.out.println("新的名称->"+newfileName);
 ​
         ClassPathResource resource = new ClassPathResource("static");
 ​
         String path = resource.getFile().getAbsolutePath();
 ​
         File dest = new File(path+ "\\" + newfileName);
         System.out.println(dest);
         try {
             file.transferTo(dest);
             System.out.println("上传成功");
             return newfileName;
         } catch (IOException e) {
             System.out.println("上传失败");
             System.out.println(e.getMessage());
         }
         return "上传失败！";
     }
 }

测试

设置请求头

设置请求数据是文件类型

结果：上传成功

 收到请求
 文件名为：aMXyhAzKyCJe9f9558bca12106c8360b89e900043b2d.png
 文件的后缀名为：.png
 新的名称->B7527AD5D1F34F80963CA9E593ECB66E1651811072581.png
 C:\Users\86131\Desktop\hospital\hospital\hospital\hospital-user\target\classes\static\B7527AD5D1F34F80963CA9E593ECB66E1651811072581.png
 上传成功