springboot实现多文件上传
代码
            
            
              java
              
              
            
          
          package com.sh.system.controller;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.StandardCopyOption;
import java.util.List;
import java.util.UUID;
@RestController
@RequestMapping("/filesUpload")
public class FileUploadController {
    // 文件存储路径(可以根据需要修改)
    private static String UPLOADED_FOLDER = "uploads/";
    /*
    *
    * 单文件上传
    */
    @PostMapping("/file")
    public ResponseEntity<String> uploadFile(@RequestParam("file") MultipartFile file) {
        if (file.isEmpty()) {
            return new ResponseEntity<>("Please select a file to upload.", HttpStatus.BAD_REQUEST);
        }
        try {
            // 获取文件名并添加唯一后缀防止重名
            String fileName = StringUtils.cleanPath(file.getOriginalFilename());
            String uniqueFileName = UUID.randomUUID().toString() + "_" + fileName;
            // 创建文件存储路径
            Path filePath = Paths.get(UPLOADED_FOLDER).toAbsolutePath().normalize();
            Files.createDirectories(filePath);
            // 保存文件到指定路径
            Path targetLocation = filePath.resolve(uniqueFileName);
            Files.copy(file.getInputStream(), targetLocation, StandardCopyOption.REPLACE_EXISTING);
            return ResponseEntity.ok("File uploaded successfully: " + uniqueFileName);
        } catch (IOException ex) {
            return new ResponseEntity<>("Could not upload the file!", HttpStatus.INTERNAL_SERVER_ERROR);
        }
    }
    /*
    *
    * 多文件上传
    *
    * */
    @PostMapping("/files")
    public ResponseEntity<String> uploadFiles(@RequestParam("files") List<MultipartFile> files) {
        if (files.isEmpty()) {
            return new ResponseEntity<>("Please select files to upload.", HttpStatus.BAD_REQUEST);
        }
        try {
            for (MultipartFile file : files) {
                // 获取文件名
                String fileName = StringUtils.cleanPath(file.getOriginalFilename());
                // 如果文件名为空或只包含空白字符,则生成一个唯一的文件名
                if (fileName.contains("..") || fileName.isEmpty()) {
                    fileName = UUID.randomUUID().toString() + "_" + file.getOriginalFilename();
                }
                // 构建文件路径
                Path filePath = Paths.get(UPLOADED_FOLDER + fileName);
                // 确保上传目录存在
                Files.createDirectories(filePath.getParent());
                // 保存文件到指定路径
                Files.copy(file.getInputStream(), filePath, java.nio.file.StandardCopyOption.REPLACE_EXISTING);
            }
            return new ResponseEntity<>("Files uploaded successfully!", HttpStatus.OK);
        } catch (IOException e) {
            e.printStackTrace();
            return new ResponseEntity<>("Failed to upload files.", HttpStatus.INTERNAL_SERVER_ERROR);
        }
    }
}postman操作截图
1、设置header

2、设置Body(说明:图示为多文件测试,单个文件,只需要设置一个key,value即可)
