SpringBoot文件上传

application.yml配置

spring:
  #   文件上传配置
  servlet:
    multipart:
      max-file-size: 10MB
      max-request-size: 10MB
  web:
    resources:
      static-locations: /upload/

代码

package com.haoyang.Controller;

import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;

import javax.servlet.http.HttpServletRequest;
import java.io.File;
import java.io.IOException;

@RestController
public class FileUploadController {

    @PostMapping("/upload")
    public String up(String nickname, MultipartFile photo, HttpServletRequest request) throws IOException {
        System.out.println(nickname);
        // 获取图片的原始名称
        System.out.println(photo.getOriginalFilename());
        // 取文件类型
        System.out.println(photo.getContentType());

        String path = request.getServletContext().getRealPath("/upload/");
        System.out.println(path);
        saveFile(photo,path);
        return "上传成功";
    }

    //
    public void saveFile(MultipartFile photo,String path) throws IOException {
//       判断存储的目录是否存在，如果不存在则创建
        File dir = new File(path);
        if(!dir.exists()){
//          创建目录
            dir.mkdir();
        }

        File file = new File(path+photo.getOriginalFilename());
        photo.transferTo(file);
    }
}