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第一lib在导入struct2相应jar包
在web.xml组态struct2过滤器
<filter> <filter-name>struts2</filter-name> <filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class> </filter> <filter-mapping> <filter-name>struts2</filter-name> <url-pattern>/*</url-pattern> </filter-mapping>
Model，业务逻辑层，验证username和password，暂定都为”admin”。当然假设嵌入项目中，验证的数据能够从数据库提取
LoginCheck.java
public class LoginCheck {
public boolean isLogin(String username,String password){
if(username.equals("admin")&&password.equals("admin")){
return true;
}else{
return false;
}
}
}
Controller
LoginAction.java
为了获得很多其它的支持，能够继承ActionSupport类
import com.opensymphony.xwork2.ActionSupport;
public class LoginAction extends ActionSupport{
String username=null;
String password=null;
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;
}
public String execute(){
LoginCheck lc=new LoginCheck();
if(lc.isLogin(username, password)){
return "success";
}else{
return "failure";
}
}
}
配置structs.xml
<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN" "http://struts.apache.org/dtds/struts-2.0.dtd"><!-- struts为配置文件根元素 --><struts> <!-- Action必须放在指定的包名空间中 --> <package name="login" extends="struts-default"> <!-- 定义login的action,事实上现类为LoginAction --> <action name="login" class="LoginAction"> <!-- 定义处理结果与视图资源之间的关系 --> <result name="success">/wel.jsp</result> <result name="failure">/err.jsp</result> </action> </package></struts>
接下来的都是视图层
登录页面login.jsp
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<html>
<head>
<title>My JSP 'login.jsp' starting page</title>
</head>
<body>
<form action="login.action" method="post">
用户名<input type="text" name="username"><br>
密码<input type="password" name="password"><br>
<input type="submit" value="提交">
</form>
</body>
</html>
错误处理页面err.jsp
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<html>
<head>
<title>My JSP 'err.jsp' starting page</title>
</head>
<body>
失败页面
</body>
</html>
登录成功页面wel.jsp
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<html>
<head>
<title>My JSP 'wel.jsp' starting page</title>
</head>
<body>
成功页面<br>
</body>
</html>
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