springboot结合layUI实现文件上传

package com.netvox.lora.controller;

import org.springframework.core.io.Resource;

import org.springframework.stereotype.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;

import java.io.InputStream;

import java.util.HashMap;

import java.util.Map;

/**

* @Package: com.netvox.lora.controller

* @ClassName: UploadController

* @Author: ZhanWeiFeng

* @Description: //TODO

* @Date: 2020.11.12 9:23

* @Version: 1.0

*/

@Controller

public class UploadController {

@RequestMapping("upload")

public StringuploadIndex() {

return "upload";

    }

@RequestMapping(value ="/uploadSource", method = RequestMethod.POST)

@ResponseBody

    public MapuploadSource(@RequestParam("file") MultipartFile file, @RequestParam("password") String password) {

Map result =new HashMap<>();

        if (!password.equals("netvox5717188")){

result.put("code",-1);

                result.put("msg","口令错误");

            return result;

        }

System.out.println(file);

        String pathString =null;

        try {

File directory =new File(Resource.class.getClassLoader().getResource("device.json").getPath());

            pathString = directory.getCanonicalPath();

            File files =new File(pathString);

            //打印查看上传路径

            System.out.println(pathString);

            if (files.exists()){

files.delete();

            }

file.transferTo(files);

            result.put("code", 200);

            result.put("msg", "success");

        }catch (Exception e) {

result.put("code", -2);

            e.printStackTrace();

        }

return result;

    }

}

前端代码

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