springboot实现多文件上传

代码

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);}}
}