1./WEB-INF/web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4"
xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<servlet>
<servlet-name>hello</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/application-servlet.xml</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>hello</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>form.jsp</welcome-file>
</welcome-file-list>
</web-app>
2./WEB-INF/application-servlet.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING/DTD BEAN/EN" "http://www.springframework.org/dtd/spring-beans.dtd">
<beans>
<bean id="urlMapping" class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
<property name="mappings">
<props>
<prop key="/login.do">loginAction</prop>
</props>
</property>
</bean>
<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="viewClass">
<value>org.springframework.web.servlet.view.InternalResourceView</value>
</property>
<property name="prefix">
<value>/</value>
</property>
<property name="suffix">
<value>.jsp</value>
</property>
</bean>
<bean id="loginAction" class="onlyfun.caterpillar.LoginAction">
<property name="commandClass">
<value>onlyfun.caterpillar.LoginForm</value>
</property>
<property name="successView">
<value>success</value>
</property>
<property name="formView">
<value>form</value>
</property>
</bean>
</beans>
3./WEB-INF/classes/onlyfun/caterpillar/LoginAction.class
package onlyfun.caterpillar;
import org.springframework.web.servlet.mvc.SimpleFormController;
import org.springframework.web.servlet.*;
public class LoginAction extends SimpleFormController {
protected ModelAndView onSubmit(Object command) throws Exception {
LoginForm form = (LoginForm) command;
if("111".equals(form.getUsername()) &&
"111".equals(form.getPassword())) {
return new ModelAndView(this.getSuccessView(),"user", form.getUsername());
}
else {
return new ModelAndView(this.getFormView());
}
}
}
4./WEB-INF/classes/onlyfun/caterpillar/LoginForm.class
package onlyfun.caterpillar;
public class LoginForm {
private String username;
private String password;
public void setUsername(String username) {
this.username = username;
}
public void setPassword(String password) {
this.password = password;
}
public String getUsername() {
return username;
}
public String getPassword() {
return password;
}
}
5./form.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<html>
<head><title>Login</title></head>
<body>
請輸入使用者名稱與密碼：<p>
<form name="loginform" action="login.do" method="post">
名稱 <input type="text" name="username"/><br>
密碼 <input type="password" name="password"/><br>
<input type="submit" value="確定"/>
</form>
注意：輸入錯誤會再回到這個頁面中。
</body>
</html>
6./success.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<html>
<head><title>Login Success</title></head>
<body>
<H1> Hello, ${user}!!</H1>
This is your secret gift.
</body>
</html>