SpringMVC文件上传

Java代码

 1 package com.geostar.gfstack.operationcenter.core.cloud.action;
 2 
 3 import com.geostar.gfstack.operationcenter.common.basecontroller.BaseAction;
 4 import org.apache.commons.io.FileUtils;
 5 import org.springframework.context.annotation.Scope;
 6 import org.springframework.stereotype.Controller;
 7 import org.springframework.web.bind.annotation.RequestMapping;
 8 import org.springframework.web.bind.annotation.RequestParam;
 9 import org.springframework.web.multipart.MultipartFile;
10 
11 import javax.servlet.ServletContext;
12 import javax.servlet.http.HttpServletRequest;
13 import java.io.File;
14 import java.io.IOException;
15 
16 /**
17  * Created by Administrator on 2017/6/7.
18  */
19 @Controller
20 @RequestMapping("fileAction")
21 @Scope("prototype")
22 public class FileAction extends BaseAction {
23 
24     @RequestMapping("upload")
25     public void upload(
26             @RequestParam("file") MultipartFile file,
27             HttpServletRequest request
28     ) throws IOException {
29         System.out.println(file);
30         if(!file.isEmpty()){
31             ServletContext sc = request.getSession().getServletContext();
32             String dir = sc.getRealPath("/upload");    //设定文件保存的目录
33             String filename = file.getOriginalFilename();    //得到上传时的文件名
34             FileUtils.writeByteArrayToFile(new File(dir,filename), file.getBytes());
35             System.out.println("upload over. "+ filename);
36         }
37     }
38 
39 }

JSP代码

 1 <%--
 2   Created by IntelliJ IDEA.
 3   User: Administrator
 4   Date: 2017/6/7
 5   Time: 15:58
 6   To change this template use File | Settings | File Templates.
 7 --%>
 8 <%@ page contentType="text/html;charset=UTF-8" language="java" %>
 9 <html>
10 <head>
11     <title>Title</title>
12 </head>
13 <body>
14 <form action="fileAction/upload" method="post" enctype="multipart/form-data">
15     <input type="file" name="file" id="file">
16     <input type="submit">
17 </form>
18 </body>
19 </html>