spring mvc sample

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使用spring的mvc，实现用户的登陆和显示。只是个简单得例子，仅供想学习springmvc得程序员入门之用。

1.开发环境：eclipse 3.2 + jdk1.5+tomcat5.5+spring2.0

2.使用的jar包：

jar包

3. 开发过程

（1）新建一个web工程，目录结构如下：

目录结构

（2）用户信息保持的javabean(User.java)的代码：

package user;import java.io.Serializable;public class User implements Serializable{/** * */private static final long serialVersionUID = 7993415270415996191L; private String userName;private String password;public String getUserName() {return userName;}public void setUserName(String userName) {this.userName = userName;}public String getPassword() {return password;}public void setPassword(String password) {this.password = password;}}

（3）index.jsp的代码：

<%@ page language="java" contentType="text/html; charset=windows-31j" pageEncoding="windows-31j"%><%@ page session="false"%><%@ taglib prefix="c" uri="http://java.sun.com/jstl/core"%><%@ taglib prefix="fmt" uri="http://java.sun.com/jstl/fmt"%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=windows-31j"><title>Insert title here</title></head><body><c:redirect url="/hello.do" /></body></html>

（4）web.xml的代码：

<?xml version="1.0" encoding="UTF-8" ?> <!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>  <servlet> <servlet-name>springapp</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <load-on-startup>1</load-on-startup> </servlet>  <servlet-mapping> <servlet-name>springapp</servlet-name> <url-pattern>*.do</url-pattern> </servlet-mapping>  <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> <taglib> <taglib-uri>/spring</taglib-uri> <taglib-location>/WEB-INF/tlds/spring.tld</taglib-location> </taglib></web-app>

（5）springapp-servlet.xml的代码：

<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN 2.0//EN" "http://www.springframework.org/dtd/spring-beans-2.0.dtd"><beans>  <bean id="springappController" class="web.SpringappController"> </bean>  <bean id="springappDisController" class="web.SpringappDisController"> <property name="sessionForm"><value>true</value></property> <property name="commandName"><value>userInf</value></property> <property name="commandClass"><value>user.User</value></property> <property name="formView"><value>hello</value></property> <property name="successView"><value>display.do</value></property> </bean> <bean id="user" class="user.User"> </bean> <bean id="urlMapping" class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping"> <property name="mappings"> <props> <prop key="/hello.do">springappController</prop> <prop key="/display.do">springappDisController</prop> </props> </property> </bean> <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="viewClass"> <value>org.springframework.web.servlet.view.JstlView</value> </property> <property name="prefix"><value>/WEB-INF/pages/</value></property> <property name="suffix"><value>.jsp</value></property> </bean></beans>

（6）hello.jsp的代码：

（7）display.jsp代码：

<%@ page language="java" contentType="text/html; charset=windows-31j" pageEncoding="windows-31j"%><%@ page session="false"%><%@ taglib prefix="c" uri="http://java.sun.com/jstl/core"%><%@ taglib prefix="fmt" uri="http://java.sun.com/jstl/fmt"%><%@ taglib prefix="spring" uri="/spring"%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=windows-31j"><title>Insert title here</title></head><body> <table> <tr> <td> <c:out value="${model.userName}" /> </td> </tr> </table></body></html>

(8)跳转的两个controller的代码：

SpringappController.java

package web;import org.springframework.web.servlet.mvc.Controller;import org.springframework.web.servlet.ModelAndView;import javax.servlet.ServletException;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import java.io.IOException;import java.util.Map;import java.util.HashMap;import org.apache.commons.logging.Log;import org.apache.commons.logging.LogFactory;public class SpringappController implements Controller {/** Logger for this class and subclasses */protected final Log logger = LogFactory.getLog(getClass());public ModelAndView handleRequest(HttpServletRequest request,HttpServletResponse response) throws ServletException, IOException {String now = (new java.util.Date()).toString();logger.info("returning hello view with " + now);Map <String, String>myModel = new HashMap<String, String>();myModel.put("now", now);return new ModelAndView("hello", "model", myModel);}}

SpringappDisController.java的代码：

/** * */package web;import java.util.HashMap;import java.util.Map;import javax.servlet.ServletException;import javax.servlet.http.HttpServletRequest;import org.springframework.web.servlet.ModelAndView;import org.springframework.web.servlet.mvc.SimpleFormController;import org.springframework.web.servlet.view.RedirectView;import user.User;/** * @author liusk * */public class SpringappDisController extends SimpleFormController {public ModelAndView onSubmit(Object command) throws ServletException { String userName = ((User)command).getUserName(); System.out.println(userName); Map <String, String>myModel = new HashMap<String, String>();myModel.put("userName", userName);return new ModelAndView("display", "model", myModel);}}