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ת×Ô:http://983836259.blog.51cto.com/7311475/1772440

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（1）web.xml：

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< web-app xmlns = "http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi = "http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" version = "3.1" > < servlet > < servlet-name >springmvc</ servlet-name > < servlet-class >org.springframework.web.servlet.DispatcherServlet</ servlet-class > < load-on-startup >1</ load-on-startup > </ servlet > < servlet-mapping > < servlet-name >springmvc</ servlet-name > < url-pattern >*.html</ url-pattern > </ servlet-mapping > < filter > < filter-name >characterEncodingFilter</ filter-name > < filter-class >org.springframework.web.filter.CharacterEncodingFilter</ filter-class > < init-param > < param-name >encoding</ param-name > < param-value >UTF-8</ param-value > </ init-param > </ filter > < filter-mapping > < filter-name >characterEncodingFilter</ filter-name > < url-pattern >/*</ url-pattern > </ filter-mapping > </ web-app >

（2）springmvc-servlet.xml：

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<? xml version = "1.0" encoding = "UTF-8" ?> < beans xmlns = "http://www.springframework.org/schema/beans" xmlns:xsi = "http://www.w3.org/2001/XMLSchema-instance" xmlns:context = "http://www.springframework.org/schema/context" xmlns:mvc = "http://www.springframework.org/schema/mvc" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd"> < context:component-scan base-package = "cn.zifangsky.* *.controller" /> < context:annotation-config /> <!-- ¼¤»îBeanÖж¨ÒåµÄ×¢½â --> < mvc:annotation-driven /> <!-- ÊÓͼÏà¹ØÅäÖà --> < bean class = "org.springframework.web.servlet.view.InternalResourceViewResolver" > < property name = "prefix" value = "/WEB-INF/pages/" /> <!-- ÊÓͼǰ׺ --> < property name = "suffix" value = ".jsp" /> <!-- ÊÓͼºó׺ --> </ bean > < bean id = "multipartResolver" class = "org.springframework.web.multipart.commons.CommonsMultipartResolver" > < property name = "uploadTempDir" value = "/tmp" /> <!-- ÁÙʱĿ¼ --> < property name = "maxUploadSize" value = "10485760" /> <!-- 10M --> </ bean > </ beans >

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（1）Ê×Ò³index.jsp：

1	<% response.sendRedirect("form.html"); %>

（2）Ä£ÐÍÀàUser.java：

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package cn.zifangsky.model; public class User { private String userName; // Óû§Ãû private String logoSrc; // Í·ÏñµØÖ· public String getUserName() { return userName; } public void setUserName(String userName) { this .userName = userName; } public String getLogoSrc() { return logoSrc; } public void setLogoSrc(String logoSrc) { this .logoSrc = logoSrc; } }

（3）ÎļþÉÏ´«±íµ¥ºÍ½á¹ûչʾҳfileupload.jsp：

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<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@taglib prefix="mvc" uri="http://www.springframework.org/tags/form"%> <%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%> < html > < head > < title >Spring MVCÎļþÉÏ´«</ title > </ head > < body > < h2 >ͼƬÎļþÉÏ´«</ h2 > < mvc:form modelAttribute = "user" action = "upload.html" enctype = "multipart/form-data" > < table > < tr > < td >Óû§Ãû：</ td > < td >< mvc:input path = "userName" /></ td > </ tr > < tr > < td >Ñ¡ÔñÍ·Ïñ：</ td > < td >< input type = "file" name = "file" /></ td > </ tr > < tr > < td colspan = "2" >< input type = "submit" value = "Submit" /></ td > </ tr > </ table > </ mvc:form > < br >< br > < c:if test = "${u !=null }" > < h2 >ÉÏ´«½á¹û</ h2 > < table > < c:if test = "${u.userName != null }" > < tr > < td >Óû§Ãû：</ td > < td >${u.userName}</ td > </ tr > </ c:if > < c:if test = "${u.logoSrc != null }" > < tr > < td >Í·Ïñ：</ td > < td >< img src = "${u.logoSrc}" width = "100px" height = "100px" ></ td > </ tr > </ c:if > </ table > </ c:if > </ body > </ html >

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（4）ºǫ́´¦ÀíUploadController.java：

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package cn.zifangsky.controller; import java.io.File; import java.io.IOException; import javax.servlet.http.HttpServletRequest; import org.apache.commons.io.FileUtils; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.RequestParam; import org.springframework.web.multipart.MultipartFile; import org.springframework.web.servlet.ModelAndView; import cn.zifangsky.model.User; import cn.zifangsky.utils.StringUtile; @Controller public class UploadController { @RequestMapping (value = "/form" ) public ModelAndView form() { ModelAndView modelAndView = new ModelAndView( "fileupload" , "user" , new User()); return modelAndView; } @RequestMapping (value = "/upload" , method = RequestMethod.POST) public ModelAndView upload(User user, @RequestParam ( "file" ) MultipartFile tmpFile, HttpServletRequest request) { ModelAndView modelAndView = new ModelAndView( "fileupload" ); if (tmpFile != null ) { // »ñÈ¡ÎïÀí·¾¶ String targetDirectory = request.getSession().getServletContext().getRealPath( "/uploads" ); String tmpFileName = tmpFile.getOriginalFilename(); // ÉÏ´«µÄÎļþÃû int dot = tmpFileName.lastIndexOf( '.' ); String ext = "" ; //Îļþºó׺Ãû if ((dot > - 1 ) && (dot < (tmpFileName.length() - 1 ))) { ext = tmpFileName.substring(dot + 1 ); } // ÆäËûÎļþ¸ñʽ²»´¦Àí if ( "png" .equalsIgnoreCase(ext) || "jpg" .equalsIgnoreCase(ext) || "gif" .equalsIgnoreCase(ext)) { // ÖØÃüÃûÉÏ´«µÄÎļþÃû String targetFileName = StringUtile.renameFileName(tmpFileName); // ±£´æµÄÐÂÎļþ File target = new File(targetDirectory, targetFileName); try { // ±£´æÎļþ FileUtils.copyInputStreamToFile(tmpFile.getInputStream(), target); } catch (IOException e) { e.printStackTrace(); } User u = new User(); u.setUserName(user.getUserName()); u.setLogoSrc(request.getContextPath() + "/uploads/" + targetFileName); modelAndView.addObject( "u" , u); } return modelAndView; } return modelAndView; } }

ÔÚÉÏÃæµÄupload·½·¨ÖÐ，ΪÁ˽ÓÊÕÉÏ´«µÄÎļþ，Òò´ËʹÓÃÁËÒ»¸öMultipartFileÀàÐ͵ıäÁ¿À´½ÓÊÕÉÏ´«µÄÁÙʱÎļþ，ͬʱΪÁ˸øÎļþ½øÐÐÖØÃüÃû，ÎÒµ÷ÓÃÁËÒ»¸örenameFileName·½·¨，Õâ¸ö·½·¨µÄ¾ßÌåÄÚÈÝÈçÏÂ：

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/** * ÎļþÖØÃüÃû */ public static String renameFileName(String fileName) { String formatDate = new SimpleDateFormat( "yyMMddHHmmss" ).format( new Date()); // µ±Ç°Ê±¼ä×Ö·û´® int random = new Random().nextInt( 10000 ); String extension = fileName.substring(fileName.lastIndexOf( "." )); // Îļþºó׺ return formatDate + random + extension; }

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