struts2登陆拦截器配置

本文来自CSDN博客，http://blog.csdn.net/JavaWinner/archive/2008/03/16/2186778.aspx

package interceptor;

import java.util.Map;

import bean.LoginedUser;

import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionInvocation;
import com.opensymphony.xwork2.interceptor.AbstractInterceptor;

@ SuppressWarnings ( "unchecked" )
public class AuthCheckInterceptor extends AbstractInterceptor ...{

private static final long serialVersionUID = -4535462154177128320L;

@ Override
public String intercept(ActionInvocation ai) throws Exception ...{

Map session = ActionContext.getContext().getSession();
LoginedUser user = (LoginedUser)session.get("USER_INFO");

if(null==user)...{// 判断session里是否有key="USER_INFO"的对象
return "globalLogin";// 转发到登录页面
}
return ai.invoke();
}

}

<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<include file="struts-default.xml" />

<!-- 定义含“权限检查拦截器”的包，供其他模块引用 -->
<package name="struts-default-with-auth-check" extends="struts-default">
<interceptors>

<!-- 定义“权限检查拦截器” -->
<interceptor name="authCheck"
class="interceptor.AuthCheckInterceptor">
</interceptor>

<!-- 定义含“权限检查拦截器”的拦截器栈，注意缺省的拦截器栈“defaultStack”要放在前面 -->
<interceptor-stack name="myStack">
<interceptor-ref name="defaultStack" />
<interceptor-ref name="authCheck"></interceptor-ref>
</interceptor-stack>
</interceptors>

<!-- 正式应用可能含很多package，为了能从其他package中跳转到登录页面，把登录页面定义成全局result -->
<default-interceptor-ref name="myStack"></default-interceptor-ref>

<global-results>
<result name="globalLogin">login.jsp</result>
</global-results>
</package>


<!-- >>>>>>>>>>>>>>>>>>>>>> p1模块 <<<<<<<<<<<<<<<<<<<<<<<<<<<< -->

<!-- 注意package的extends属性，系统中只有“登录/注销”操作不需要检查权限 -->
<package name="p1" extends="struts-default">
<!-- 登录 -->
<action name="login" class="action.LoginAction">
<result>welcome.jsp</result>
<result name="input">login.jsp</result>
</action>

<!-- 注销 -->
<action name="logout" class="action.LogoutAction">
<result>login.jsp</result>
</action>
</package>

<!-- >>>>>>>>>>>>>>>>>>>>>> p2模块 <<<<<<<<<<<<<<<<<<<<<<<<<<<< -->

<package name="p2" extends="struts-default-with-auth-check">
<!-- 试图未经过登录，直接访问welcome页面，测试用 -->
<action name="welcome" class="action.WelcomeAction">
<result>welcome.jsp</result>
</action>
</package>

</struts>

本文来自CSDN博客，转载请标明出处：http://blog.csdn.net/JavaWinner/archive/2008/03/16/2186778.aspx