SpringMVC学习笔记（六）上传文件

2019-11-11 02:22:54

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参考

（1）《sPRing入门经典》（基于本书第三章）

代码结构

这里写图片描述

程序清单

（1）pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.zqx</groupId> <artifactId>SpringMVCFileupload</artifactId> <packaging>war</packaging> <version>1.0-SNAPSHOT</version> <name>SpringMVCFileupload Maven Webapp</name> <url>http://maven.apache.org</url> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>3.8.1</version> <scope>test</scope> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>4.1.7.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-beans</artifactId> <version>4.1.7.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>4.1.7.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>4.1.7.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>4.1.7.RELEASE</version> </dependency> </dependencies> <build> <finalName>SpringMVCFileupload</finalName> </build></project>

（2）web.xml

<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd" ><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"> <display-name>Archetype Created Web Application</display-name> <servlet> <servlet-name>springmvc</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <load-on-startup>1</load-on-startup> <multipart-config> <location>/tmp</location> <max-file-size>1048576</max-file-size> <max-request-size>2097152</max-request-size> <file-size-threshold>524288</file-size-threshold> </multipart-config> </servlet> <servlet-mapping> <servlet-name>springmvc</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping></web-app>

（3）springmvc-servlet.xml

<?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="com.wiley.beginningspring.ch3" /> <context:annotation-config /> <mvc:annotation-driven /> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/pages/" /> <property name="suffix" value=".jsp" /> </bean> <bean id="multipartResolver" class="org.springframework.web.multipart.support.StandardServletMultipartResolver"> </bean></beans>

（4）User.java

package com.wiley.beginningspring.ch3.domain;import org.springframework.web.multipart.MultipartFile;public class User { private String name; private MultipartFile file; public String getName() { return name; } public void setName(String name) { this.name = name; } public MultipartFile getFile() { return file; } public void setFile(MultipartFile file) { this.file = file; }}

（5）FileUploadController.java

package com.wiley.beginningspring.ch3.controller;import java.io.IOException;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.servlet.ModelAndView;import com.wiley.beginningspring.ch3.domain.User;@Controllerpublic class FileUploadController { @RequestMapping("/form") public ModelAndView getFileUploadForm() { return new ModelAndView("fileUpload", "user", new User()); } @RequestMapping(value = "/upload") public ModelAndView processUser(User user) throws IOException { ModelAndView modelAndView = new ModelAndView(); modelAndView.setViewName("fileUpload"); modelAndView.addObject("userName", user.getName()); modelAndView.addObject("fileLength", user.getFile().getBytes().length); return modelAndView; }}

（6）fileUpload.jsp

<%@taglib uri="http://www.springframework.org/tags/form" prefix="mvc"%><html><head> <title>Spring MVC File Upload</title></head><body><h2>File Upload With Servlet 3.0</h2><mvc:form modelAttribute="user" action="upload.mvc" enctype="multipart/form-data"> <table> <tr> <td>Name</td> <td><mvc:input path="name" /></td> </tr> <tr> <td>Choose File</td> <td><mvc:input type="file" path="file" /></td> </tr> <tr> <td colspan="2"><input type="submit" value="Submit" /></td> </tr> </table></mvc:form><h3>Uploaded Information</h3><table> <tr> <td>Name</td> <td>${userName}</td> </tr> <tr> <td>Choose File</td> <td>${fileLength}</td> </tr></table></body></html>