基于struct2的完整用户登录
来源：程序员人生 发布时间：2014-11-06 11:55:48 阅读次数：2577次
首先在lib下导入struct2相应的jar包
在web.xml配置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，验证用户名和密码，暂定都为"admin"。固然如果嵌入项目中，验证的数据可以从http://www.wfuyu.com/db/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
为了取得更多的支持，可以继承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="UTF⑻"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts⑵.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,其实现类为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="utf⑻"%>
<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>
毛病处理页面err.jsp
<%@ page language="java" import="java.util.*" pageEncoding="utf⑻"%>
<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="utf⑻"%>
<html>
<head>
<title>My JSP 'wel.jsp' starting page</title>
</head>
<body>
成功页面<br>
</body>
</html>
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