1.applicationContext.xml
1 <bean id="multipartResolver" 2 class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> 3 <property name="maxUploadSize" value="104857600" /> 4 <property name="maxInMemorySize" value="4096" /> 5 <property name="defaultEncoding" value="UTF-8"></property> 6 </bean>
2.uploadFile.jsp
1 <%@ page language="java" contentType="text/html; charset=utf-8" 2 pageEncoding="utf-8"%> 3 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 4 <html> 5 <head> 6 <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> 7 <title>Insert title here</title> 8 </head> 9 <body> 10 11 <form name="Form2" action="/tao-manager-web/springUpload" method="post" 12 enctype="multipart/form-data"> 13 <h1>使用spring mvc提供的类的方法上传文件</h1> 14 <input type="file" name="file"> <input type="submit" 15 value="upload" /> 16 </form> 17 </body> 18 </html>
3.UploadFileAction.java
1 package com.taozhiye.controller;
2
3 import java.io.File;
4 import java.io.FileNotFoundException;
5 import java.io.FileOutputStream;
6 import java.io.IOException;
7 import java.io.InputStream;
8 import java.io.OutputStream;
9 import java.util.Date;
10 import java.util.Iterator;
11
12 import javax.servlet.http.HttpServletRequest;
13
14 import org.springframework.stereotype.Controller;
15 import org.springframework.web.bind.annotation.RequestMapping;
16 import org.springframework.web.bind.annotation.RequestParam;
17 import org.springframework.web.bind.annotation.ResponseBody;
18 import org.springframework.web.multipart.MultipartFile;
19 import org.springframework.web.multipart.MultipartHttpServletRequest;
20 import org.springframework.web.multipart.commons.CommonsMultipartFile;
21 import org.springframework.web.multipart.commons.CommonsMultipartResolver;
22
23 @Controller
24 public class UploadFileAction {
25
26
27 @RequestMapping("uploadFile")
28 public String goFile(){
29 return "uploadFile";
30 }
31
32 /*
33 * 采用spring提供的上传文件的方法
34 */
35 @RequestMapping("springUpload")
36 @ResponseBody
37 public String springUpload(HttpServletRequest request)
38 throws IllegalStateException, IOException {
39 long startTime = System.currentTimeMillis();
40 // 将当前上下文初始化给 CommonsMutipartResolver （多部分解析器）
41 CommonsMultipartResolver multipartResolver = new CommonsMultipartResolver(
42 request.getSession().getServletContext());
43 // 检查form中是否有enctype="multipart/form-data"
44 if (multipartResolver.isMultipart(request)) {
45 // 将request变成多部分request
46 MultipartHttpServletRequest multiRequest = (MultipartHttpServletRequest) request;
47 // 获取multiRequest 中所有的文件名
48 Iterator iter = multiRequest.getFileNames();
49 while (iter.hasNext()) {
50 // 一次遍历所有文件
51 MultipartFile file = multiRequest.getFile(iter.next()
52 .toString());
53 if (file != null) {
54 String path = "E:/springUpload"
55 + file.getOriginalFilename();
56 // 上传
57 file.transferTo(new File(path));
58 }
59
60 }
61
62 }
63 long endTime = System.currentTimeMillis();
64 System.out.println("方法的运行时间：" + String.valueOf(endTime - startTime)
65 + "ms");
66 return "success";
67 }
68 }
69
2017-04-10原文：http://www.cnblogs.com/Jansens520/p/6690151.html