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Spring MVC上传文件

2024-09-13 21:25:41   217人阅读

1.applicationContext.xml

1 <bean id="multipartResolver"2         class="org.springframework.web.multipart.commons.CommonsMultipartResolver">3         <property name="maxUploadSize" value="http://www.mamicode.com/104857600" />4         <property name="maxInMemorySize" value="http://www.mamicode.com/4096" />5         <property name="defaultEncoding" value="http://www.mamicode.com/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="http://www.mamicode.com/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 @Controller24 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     @ResponseBody37     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request46             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

Spring MVC上传文件


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