springboot实现单文件和多文件上传

springboot实现单文件和多文件上传

本文实例为大家分享了springboot实现单文件/多文件上传的具体代码，供大家参考，具体内容如下

package com.heeexy.example.controller;

import com.alibaba.fastjson.JSONObject;

import com.heeexy.example.util.CommonUtil;

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

import org.springframework.web.multipart.MultipartFile;

import org.springframework.web.multipart.MultipartHttpServletRequest;

import javax.servlet.http.HttpServletRequest;

import java.io.*;

import java.util.*;

@RestController

@RequestMapping("/common")

public class UploadController {

//设置上传文件夹

File uploadPath = null;

//单文件上传

@PostMapping("/upload")

public JSONObject upload(@RequestParam(value = "file", required = false)MultipartFile file,HttpServletRequest request) throws Exception{

//定义返回客户端json对象

JSONObject returnData = new JSONObject();

//定义处理流对象

BufferedOutputStream out = null;

//将request对象转成JSONObject对象

JSONObject jsonObject = CommonUtil.request2Json(request);

//验证必填字段

CommonUtil.hasAllRequired(jsonObject,"user_id,equi_id,upload_type");

//获取当前用户id

String user_id = jsonObject.getString("user_id");

//获取当前设备id

String equi_id = jsonObject.getString("equi_id");

//获取上传文件的类型 1:巡检 2:维保

String upload_type = jsonObject.getString("upload_type");

//判断上传文件类型并设置前置路径

File uploadPath = null;

String basePath = "/root/img"; //基础文件上传路径

String inspection = "/inspection"; //巡检文件夹路径

String maintenance = "/maintenance"; //维保文件夹路径

switch (upload_type){

case "1":

uploadPath = new File(basePath+inspection);

break;

case "2":

uploadPath = new File(basePath+maintenance);

break;

default:

uploadPath = new File(basePath);

}

//判断服务器上传文件夹是否存在

if(!uploadPath.exists()){

uploadPath.mkdirs();

}

//判断上传的文件是否为空

if (file!=null) {

//获取上传文件后缀

String houzhui = file.getOriginalFilename().split("\\.")[1];

//拼接上传文件保存路径(当前用户id+设备id+时间戳.后缀名)

File fil = new File(uploadPath+"/"+user_id+equi_id+new Date().getTime()+"."+houzhui);

try {

//将上传文件保存到服务器上传文件夹目录下

out = new BufferedOutputStream(new FileOutputStream(fil));

out.write(file.getBytes());

out.flush();

out.close();

//返回上传文件的访问路径 getAbsolutePath()返回文件上传的绝对路径

returnData.put("message",fil.getName());

} catch (FileNotFoundException e) {

e.printStackTrace();

returnData.put("message", "文件上传失败:" + e.getMessage());

} catch (IOException e) {

e.printStackTrace();

returnData.put("message", "文件上传失败:" + e.getMessage());

}finally {

//关闭处理流

if(out!=null){out.close();}

}

} else {

returnData.put("message", "文件上传失败,文件为空");

}

return CommonUtil.successJson(returnData);

}

//多文件上传

@PostMapping("/batchUpload")

public JSONObject handleFileUpload(HttpServletRequest request) throws Exception{

//定义返回客户端json对象

JSONObject returnData = new JSONObject();

//定义处理流对象,处理文件上传

BufferedOutputStream stream = null;

//定义map存储返回结果集

Map returnfileMap = new HashMap();

//获取前端上传的文件列表

List files = ((MultipartHttpServletRequest) request).getFiles("file");

MultipartFile file = null;

//将request对象转成JSONObject对象GLtgaXw

JSONObject jsonObject = CommonUtil.request2Json(request);

//验证必填字段,用户id,设备id,上传文件类型

CommonUtil.hasAllRequired(jsonObject,"user_id,equi_id,upload_type");

//获取当前用户id

String user_id = jsonObject.getString("user_id");

//获取当前设备id

String equi_id = jsonObject.getString("equi_id");

//获取上传文件的类型 1:巡检 2:维保

String upload_type = jsonObject.getString("upload_type");

//判断上传文件类型并设置前置路径

File uploadPath = null;

String basePath = "/root/img"; //基础文件上传路径

String inspection = "/inspection"; //巡检文件夹路径

String maintenance = "/maintenance"; //维保文件夹路径

switch (upload_http://type){

case "1":

uploadPath = new File(basePath+inspection);

break;

case "2":

uploadPath = new File(basePath+maintenance);

break;

default:

uploadPath = new File(basePath);

}

//判断服务器上传文件夹是否存在

if(!uploadPath.exists()){

uploadPath.mkdirs();

}

//遍历客户端上传文件列表

for (int i = 0; i < files.size(); ++i) {

//获取到每个文件

file = files.get(i);

try {

//获取上传文件后缀

String houzhui = file.getOriginalFilename().split("\\.")[1];

//拼接上传文件保存在服务器的路径(当前用户id+设备id+时间戳.后缀名)

File fil = new File(uploadPath+"/"+user_id+equi_id+new DaGLtgaXwte().getTime()+"."+houzhui);

//将上传文件保存到服务器上传文件夹目录下

byte[] bytes = file.getBytes();

stream = new BufferedOutputStream(new FileOutputStream(fil));

stream.write(bytes);

stream.close();

//每成功上传一个文件,将上传文件名作为key,服务器保存路径作为value存入returnfileMap中

switch (upload_type){

case "1":

returnfileMap.put(file.getOriginalFilename(),inspection+"/"+fil.getName());

break;

case "2":

returnfileMap.put(file.getOriginalFilename(),maintenance+"/"+fil.getName());

break;

}

} catch (Exception e) {

stream = null;

//保存上传失败的文件信息,将上传文件名作为key,value值为"fail",存入returnfileMap中

returnfileMap.put(file.getOriginalFilename(),"fail");

}finally {

//关闭处理流

if(stream!=null){stream.close();}

}

}

//返回returnfileMap集合到客户端

returnData.put("message",returnfileMap);

return CommonUtil.successJson(returnData);

}

}

单文件文件结果

多文件上传结果

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