基于XML配置的Spring MVC（所需jar包，web.xml配置，处理器配置，视图解析器配置）

2、web.xml配置

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5"
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_2_5.xsd">


<servlet>
<servlet-name>action</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:action-servlet.xml</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>action</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>

<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>
3、配置action-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:mvc="http://www.springframework.org/schema/mvc"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.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
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.0.xsd ">


<bean class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping">
<property name="order" value="3"></property>
</bean>


<bean class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
<property name="mappings">
<props>
<prop key="/home.do">homeController</prop> //通过这个配置，对应id是homeController的可以通过这四个地址访问。
<prop key="/a.do">homeController</prop>
<prop key="/b.do">homeController</prop>
<prop key="/c.do">homeController</prop>
</props>
</property>
<property name="order" value="2"></property>
</bean>


<bean class="org.springframework.web.servlet.mvc.support.ControllerClassNameHandlerMapping">
<property name="order" value="1"></property>
</bean>


<bean id="homeController" name="/hello.do" class="cn.itcast.springmvc.controller.HomeController"></bean>


<bean name="/command.do" class="cn.itcast.springmvc.controller.MyCommandController"></bean>


<bean name="/form.do" class="cn.itcast.springmvc.controller.MyFormController">
<property name="successView" value="success"></property>name必须是successView,这里对应的是success.jsp
<property name="formView" value="userForm"></property>formView必须是userForm,这里对应的是userForm.jsp
</bean>


<bean name="/wizard.do" class="cn.itcast.springmvc.controller.MyWizardFormController">
<property name="pages">

<list>
<value>wizard/1</value> 对应的是wizard中的1.jsp
<value>wizard/2</value> 2.jsp
<value>wizard/3</value> 3.jsp
</list>
</property>
</bean>


<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">

<property name="prefix" value="/WEB-INF/jsps/"></property>

<property name="suffix" value=".jsp"></property>
</bean>
</beans>
4、编写实体bean:

package cn.itcast.springmvc.domain;

public class User {
private String name;
private String address;
private Integer age;
private String tel;

/**
* @return the name
*/
public String getName() {
return name;
}

/**
* @param name the name to set
*/
public void setName(String name) {
this.name = name;
}

/**
* @return the address
*/
public String getAddress() {
return address;
}
/**
* @param address the address to set
*/
public void setAddress(String address) {
this.address = address;
}

/**
* @return the age
*/
public Integer getAge() {
return age;
}

/**
* @param age the age to set
*/
public void setAge(Integer age) {
this.age = age;
}

/**
* @return the tel
*/
public String getTel() {
return tel;
}

/**
* @param tel the tel to set
*/
public void setTel(String tel) {
this.tel = tel;
}
}

5、编写HomeController，代码如下：

package cn.itcast.springmvc.controller;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.AbstractController;

public class HomeController extends AbstractController {

@Override
protected ModelAndView handleRequestInternal(HttpServletRequest req,
HttpServletResponse resp) throws Exception {
String name = req.getParameter("name");
String msg = "hello " + name + " !";
System.out.println("HomeController...");
return new ModelAndView("helloworld","msg",msg);
}

}

6、HomeController返回到的页面未：helloworld.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>

<html>
<head>
<title> 'helloworld.jsp'</title>

</head>

<body>
This is helloworld.jsp<br>
${requestScope.msg}
</body>
</html>

7、编写MyCommandController，代码如下：

package cn.itcast.springmvc.controller;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.validation.BindException;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.AbstractCommandController;

import cn.itcast.springmvc.domain.User;

/**
*命令控制器
*/
public class MyCommandController extends AbstractCommandController {

public MyCommandController(){
//注册命令类
this.setCommandClass(User.class);
//命令名称
this.setCommandName("user");
}

@Override
protected ModelAndView handle(HttpServletRequest request,
HttpServletResponse response,Object command,BindException errors)
throws Exception {
User u = (User)command;
System.out.println("name:" + u.getName() + " address:" + u.getAddress());
return new ModelAndView("commandView","user",u);
}

}

8、commandView.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>

<html>
<head>
<title> 'commandView.jsp'</title>

</head>

<body>
This is commandView.jsp<br>
name:${user.name }<br>
address:${user.address }<br>
age:${user.age }<br>
tel:${user.tel }
</body>
</html>

9、MyFormController

package cn.itcast.springmvc.controller;

import org.springframework.web.servlet.mvc.SimpleFormController;

import cn.itcast.springmvc.domain.User;

public class MyFormController extends SimpleFormController {

public MyFormController() {
this.setCommandClass(User.class);
this.setCommandName("user");
}

@Override
protected void doSubmitAction(Object command) throws Exception {
User u = (User)command;
System.out.println(u.getName());
System.out.println("doSubmitAction");
super.doSubmitAction(command);
}

}

对应的userForm.jsp

<html>
<head>
<title> 'userForm.jsp'</title>

</head>

<body>
<form action="<%=path%>/form.do" method="post">
name:<input type="text" name="name"><br>
age:<input type="text" name="age"><br>
address:<input type="text" name="address"><br>
tel:<input type="text" name="tel"><br>
<input type="submit" value="submit"/>
</form>
</body>
</html>

对应的success.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>

<html>
<head>
<title> 'success.jsp'</title>
</head>

<body>
This is success.jsp!
</body>
</html>

10、MyWizardFormController的代码如下：

package cn.itcast.springmvc.controller;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.validation.BindException;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.AbstractWizardFormController;

import cn.itcast.springmvc.domain.User;

public class MyWizardFormController extends AbstractWizardFormController {

public MyWizardFormController(){
this.setCommandClass(User.class);
this.setCommandName("user");
}

@Override
protected ModelAndView processCancel(HttpServletRequest request,BindException errors)
throws Exception {
return new ModelAndView("helloworld"); //跳转到helloworld.jsp
}

@Override
protected ModelAndView processFinish(HttpServletRequest request,BindException errors)
throws Exception {
User u = (User) command;
System.out.println(u);
return new ModelAndView("helloworld");//跳转到helloworld.jsp
}

}

相应的WEB-INF/wizard/1.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<html>
<head>
<title> '1.jsp'</title>

</head>

<body>
<form action="<%=path %>/wizard.do" method="post">
name:<input type="text" name="name" value="${requestScope.user.name}"><br> //标出的颜色区域可以用于回显
<input type="submit" name="_cancel" value="取消"/>//必须有下划线，且值是确定的
<input type="submit" name="_target1" value="下一步"/>//必须有下划线，且值是确定的
</form>
</body>
</html>

相应的WEB-INF/wizard/2.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<html>
<head>
<title> '2.jsp'</title>

</head>

<body>
<form action="<%=path %>/wizard.do" method="post">
address:<input type="text" name="address" value="${requestScope.user.address }"><br>
<input type="submit" name="_target0" value="上一步"/>//表示跳转到最开始的页面。
<input type="submit" name="_cancel" value="取消"/>
<input type="submit" name="_target2" value="下一步"/>
</form>
</body>
</html>

相应的WEB-INF/wizard/3.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <html> <head> <title> '3.jsp'</title> </head> <body> <form action="<%=path %>/wizard.do" method="post"> age:<input type="text" name="age" value="${requestScope.user.age }"><br> tel:<input type="text" name="tel" value="${requestScope.user.tel }"><br> <input type="submit" name="_target1" value="上一步"/> <input type="submit" name="_cancel" value="取消"/> <input type="submit" name="_finish" value="完成"/> </form> </body> </html>

基于XML配置的Spring MVC（所需jar包，web.xml配置，处理器配置，视图解析器配置）

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