springMVC实现文件上传

springMVC实现文件上传

web.xml:

<?xml version="1.0" encoding="UTF-8"?><web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">  <display-name></display-name>  <welcome-file-list>    <welcome-file>index.jsp</welcome-file>  </welcome-file-list>   <context-param>  <param-name>contextConfigLocation</param-name>  <param-value>classpath*:config/spring/spring-*.xml</param-value>  </context-param>    <!-- 配置Spring监听 -->  <listener>  <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>  </listener>    <!-- 配置SpringMVC -->   <servlet>  <servlet-name>springMVC</servlet-name>  <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>  <init-param>  <param-name>contextConfigLocation</param-name>  <param-value>classpath*:spring/config/spring-mvc.xml</param-value>  </init-param>  <load-on-startup>1</load-on-startup>  </servlet>      <servlet-mapping>  <servlet-name>springMVC</servlet-name>  <url-pattern>/</url-pattern>  </servlet-mapping>    <!-- 配置字符集 -->  <filter>  <filter-name>encodingFilter</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>  <init-param>  <param-name>forceEncoding</param-name>  <param-value>true</param-value>  </init-param>  </filter>  <filter-mapping>  <filter-name>encodingFilter</filter-name>  <url-pattern>/*</url-pattern>  </filter-mapping>  </web-app>

spring-mvc.xml:

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"      xmlns:context="http://www.springframework.org/schema/context"      xmlns:util="http://www.springframework.org/schema/util"       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"       xmlns:mvc="http://www.springframework.org/schema/mvc"        xsi:schemaLocation="            http://www.springframework.org/schema/util           http://www.springframework.org/schema/util/spring-util-3.0.xsd          http://www.springframework.org/schema/mvc           http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd          http://www.springframework.org/schema/beans                 http://www.springframework.org/schema/beans/spring-beans-3.0.xsd            http://www.springframework.org/schema/mvc              http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd          http://www.springframework.org/schema/context             http://www.springframework.org/schema/context/spring-context-3.0.xsd">  <!-- 注解扫描包 --><context:component-scan base-package="com.web" /><!-- 开启注解 --><mvc:annotation-driven /><!-- 静态资源(js/image)的访问 --><mvc:resources location="/js/" mapping="/js/**"/><!-- 定义视图解析器 --><bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"><property name="prefix" value="/"></property><property name="suffix" value=".jsp"></property></bean><!-- 加载使用multipartResolver-->   <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver" >      </bean>                        </beans>

控制层:

package com.web;import java.io.File;import java.io.IOException;import java.util.Iterator;import javax.servlet.http.HttpServletRequest;import org.springframework.http.HttpRequest;import org.springframework.stereotype.Controller;import org.springframework.ui.ModelMap;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestParam;import org.springframework.web.multipart.MultipartFile;import org.springframework.web.multipart.MultipartHttpServletRequest;import org.springframework.web.multipart.commons.CommonsMultipartResolver;@Controller@RequestMapping("/s")public class SpringUpload {@RequestMapping("/u")public String fileUpload(@RequestParam(value = "file", required = false) MultipartFile file, HttpServletRequest request, ModelMap model) throws IllegalStateException, IOException { System.out.println("开始");   /*在项目路径创建保存目录upload*/        String path = request.getSession().getServletContext().getRealPath("upload");          String fileName = file.getOriginalFilename();  //        String fileName = new Date().getTime()+".jpg";          System.out.println(path);          File targetFile = new File(path, fileName);                  if(!targetFile.exists()){              targetFile.mkdirs();          }            //保存          try {              file.transferTo(targetFile);          } catch (Exception e) {              e.printStackTrace();          }          model.addAttribute("fileUrl", request.getContextPath()+"/upload/"+fileName);         return "OK";}}

index.jsp:

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%><%String path = request.getContextPath();String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html>  <head>    <base href="<%=basePath%>">        <title>My JSP 'index.jsp' starting page</title><meta http-equiv="pragma" content="no-cache"><meta http-equiv="cache-control" content="no-cache"><meta http-equiv="expires" content="0">    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"><meta http-equiv="description" content="This is my page"><!--<link rel="stylesheet" type="text/css" href="styles.css">-->  </head>    <body>   <form action="/Upload/s/u" method="post" enctype="multipart/form-data">  <input type="file" name="file" /> <input type="submit" value="Submit" /></form>            </body></html>