Spring Boot 上传文件

<form enctype="multipart/form-data" method="post" action="/upload">
　　文件:<input type="file" name="head_img"/>
　　姓名:<input type="text" name="name"/>
　　<input type="submit" value="上传"/>
</form>

package com.example.demo.controller;

import java.io.File;
import java.io.IOException;
import java.util.UUID;

import javax.servlet.http.HttpServletRequest;

import com.example.demo.domain.JsonData;

import com.example.demo.domain.JsonData;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.multipart.MultipartFile;

/**
 * 功能描述：文件测试
 *
 * <p> 创建时间：Apr 22, 2018 11:22:29 PM </p> 
 * <p> 作者：小D课堂</p>
 */
@Controller
public class FileController {
        private static final String filePath = "F:/IdeaProjects/springbootDemo/src/main/resources/static/images/";
    
        @RequestMapping(value = "upload")
        @ResponseBody
        public JsonData upload(@RequestParam("head_img") MultipartFile file, HttpServletRequest request) {
          
             //file.isEmpty(); 判断图片是否为空
             //file.getSize(); 图片大小进行判断
             
             String name = request.getParameter("name");
             System.out.println("用户名："+name);
            
             // 获取文件名
            String fileName = file.getOriginalFilename();            
            System.out.println("上传的文件名为：" + fileName);
            
            // 获取文件的后缀名,比如图片的jpeg,png
            String suffixName = fileName.substring(fileName.lastIndexOf("."));
            System.out.println("上传的后缀名为：" + suffixName);
            
            // 文件上传后的路径
            fileName = UUID.randomUUID() + suffixName;
            System.out.println("转换后的名称:"+fileName);
            
            File dest = new File(filePath + fileName);
           
            try {
                file.transferTo(dest);
                
                return new JsonData(0, fileName);
            } catch (IllegalStateException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return  new JsonData(-1, "fail to save ", null);
        }
}

@Bean 
public MultipartConfigElement multipartConfigElement() { 
　　MultipartConfigFactory factory = new MultipartConfigFactory(); 
　　//单个文件最大 
　　factory.setMaxFileSize("10240KB"); //KB,MB 
　　/// 设置总上传数据总大小 
　　factory.setMaxRequestSize("1024000KB"); 
　　return factory.createMultipartConfig(); 
}

<build>
　　<plugins>
　　　　<plugin>
　　　　　　<groupId>org.springframework.boot</groupId>
　　　　　　<artifactId>spring-boot-maven-plugin</artifactId>
　　　　</plugin>
　　</plugins>
</build>

web.images-path=/Users/jwen/Desktop
spring.resources.static-locations=classpath:/META-INF/resources/,classpath:/resources/,classpath:/static/,classpath:/public/,file:${web.upload-path}