Spring-Boot-文件上传

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编写Controller

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package com.caicai.springbootstaticresources1.controller;

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.File;
import java.io.IOException;

/**
 * @author liu
 * @title: FileController
 * @projectName 05-spring-boot-static-resources1
 * @description: TODO
 * @date 2019/3/2719:04
 */
@RestController
public class FileController {

    @RequestMapping(value = "/fileUploadController")
    public String fileUpload(@RequestParam("filename") MultipartFile file){
        System.out.println(file.getName());
        try {
            file.transferTo(new File("F:/"+file.getName()));
        } catch (IOException e) {
            e.printStackTrace();
        }
        return "success";
    }
}

编写上传界面

为了方便在static文件夹下建立upload.html

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>文件上传</title>
</head>
<body>
    <form action="fileUploadController" method="post" enctype="multipart/form-data">
        上传文件:<input type="file" name="filename">
        <input type="submit">
    </form>
</body>
</html>

设置上传文件大小的默认值

在resources下建立application.yml文件

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spring:
  servlet:
    multipart:
      max-file-size: 10MB   #设置单个上传文件的大小
      max-request-size: 100MB  #设置一次请求上传文件的总容量
      enabled: true