springboot 单个input实现多图片上传

package controller; import java.io.File; import java.io.FileOutputStream; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.ResponseBody; import org.springframework.web.multipart.MultipartFile; @Controller @RequestMapping("/testController") public class UploadImage { @RequestMapping("/uploadImg") @ResponseBody public void uploadImg(MultipartFile file[], String areaName) throws Exception { System.out.println("得到的areaName:"+areaName); // 设置上传的路径是D盘下的picture String imgPath = "D:/picture/"; for (MultipartFile f : file) { // 图片的名字用毫秒数+图片原来的名字拼接 System.out.println(f.getSize()); System.out.println(f.getBytes()); String imgName = System.currentTimeMillis() + f.getOriginalFilename(); uploadFileUtil(f.getBytes(), imgPath, imgName); } } public void uploadFileUtil(byte[] file, String imgPath, String imgName) throws Exception { File targetFile = new File(imgPath); if (!targetFile.exists()) { targetFile.mkdirs(); } FileOutputStream out = new FileOutputStream(imgPath + imgName); out.write(file); out.flush(); out.close(); } }