Struts2的一個簡單入門例子

default.jsp

<%@ taglib uri="/struts-tags" prefix="s" %>
<%@ page language="java" contentType="text/html; charset=GBK" pageEncoding="GBK"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>首頁</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">
</head>
<body>   
    <s:form action="login!execute.action" method="post">
        <s:label value="系統登陸"></s:label>
        <s:textfield name="username" label="賬號" />
        <s:password name="password" label="密碼" />
    <s:submit value="登錄" />
   </s:form>   
</body>
</html

struts.xml

<struts>
	<!-- 動態地調用方法 -->
	<constant name="struts.enable.DynamicMethodInvocation" value="true"></constant>  
    <package name="default" extends="json-default">
        
        <action name="login" class="com.hik.user.LoginAction">
            <result name="success">/welcome.jsp</result>
            <result name="login">/default.jsp</result>
        </action>
        
        
        <action name="UserLogin" class="com.hik.user.UserLoginAction">
        	 <result type="json"></result>
        </action>
        
        <!--
        <action name="login" class="com.hik.user.LoginAction" method="execute">
            <result name="success">/welcome.jsp</result>
            <result name="login">/default.jsp</result>
        </action>
        -->
    </package>

</struts>

LoginAction.java

package com.hik.user;
import com.opensymphony.xwork2.ActionSupport;


public class LoginAction extends ActionSupport {
	 private static final long serialVersionUID = 1L;
	 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;
	 }

	 @Override
	 public String execute() throws Exception {
	     if("admin".equals(username) && "12345".equals(password))//如果登錄的用戶名=haha並且密碼=hehe,就返回SUCCESS;否則,返回LOGIN
	         return SUCCESS;
	     return LOGIN;
	 }
}

welcome.jsp

<%@ page language="java" contentType="text/html; charset=GBK" pageEncoding="GBK"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
    <title>My JSP 'welcome.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">
</head>
  
<body>
   歡迎${username }!
</body>
</html>

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
  <display-name>MyProject</display-name>

  <servlet>
    <description></description>
    <display-name>extLogin</display-name> <!-- extJS對應的servlet服務 -->
    <servlet-name>extLogin</servlet-name>
    <servlet-class>com.hik.user.Login</servlet-class>
  </servlet>
  <servlet-mapping>
    <servlet-name>extLogin</servlet-name>
    <url-pattern>/extLogin</url-pattern>
  </servlet-mapping>
  
 <!-- Struts2 filter -->
	<filter>
		<filter-name>struts2</filter-name>
            <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
            <init-param>
            <param-name>struts.action.extension</param-name>
            <param-value>action,php</param-value>  <!-- 設置攔截對象類型 -->
           </init-param>
	</filter>
	
<!--     <filter-mapping>
		<filter-name>struts2</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping> -->
	
     <filter-mapping> 
      <filter-name>struts2</filter-name> 
      <url-pattern>*.action</url-pattern>
      <dispatcher>REQUEST</dispatcher>
      <dispatcher>FORWARD</dispatcher>
    </filter-mapping>
    <filter-mapping> 
      <filter-name>struts2</filter-name> 
      <url-pattern>*.jsp</url-pattern>
    </filter-mapping>
    <filter-mapping> 
      <filter-name>struts2</filter-name> 
      <url-pattern>*.php</url-pattern>
    </filter-mapping>
 
  <welcome-file-list>
    <welcome-file>default.jsp</welcome-file>
  </welcome-file-list>
  
</web-app>

 


 

 


 

 



 

 

 

 

 

 

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