struts2配置session超时,权限访问，异常日志等拦截器

1.Struts配置文件

<?xml version="1.0" encoding="GBK"?>

<!DOCTYPE struts PUBLIC

"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"

"http://struts.apache.org/dtds/struts-2.0.dtd">

<struts>

<!-- 国际化信息配置文件，resource.properties包下的message_info.properties和message_error.properties文件 -->

<constant name="struts.custom.i18n.resources" value="resource.properties.message_error,resource.properties.message_info"></constant>

<constant name="struts.i18n.encoding" value="UTF-8"></constant>

<constant name="struts.objectFactory" value="spring"></constant>

<!-- Configuration for the default package. -->

<package name="TJStruts-default" extends="struts-default">

<interceptors>

<!-- session超时拦截 -->

<interceptor name="sessionInterceptor"

class="**.interceptor.SessionInterceptor">

</interceptor>

<!-- 异常日志拦截 -->

<interceptor name="exceptionLogIntercepter"

class="**.interceptor.ExceptionLogIntercepter">

</interceptor>

<!-- url权限拦截 -->

<interceptor name="urlAccessInterceptor"

class="**.interceptor.UrlAccessInterceptor">

</interceptor>

<interceptor-stack name="defaultInteceptorStack">

<interceptor-ref name="exceptionLogIntercepter" />

<interceptor-ref name="sessionInterceptor"/>

<!-- 配置需要进行权限控制的action或模块菜单 -->

<interceptor-ref name="urlAccessInterceptor">

<param name="action">/*/*.action,/*/*.action</param>

</interceptor-ref>

<interceptor-ref name="defaultStack" />

</interceptor-stack>

</interceptors>

<default-interceptor-ref name="defaultInteceptorStack" />

<global-results>

<!-- 出错页面跳转 -->

<result name="error">/error.jsp</result>

<!-- 成功页面跳转 -->

<result name="success">/success.jsp</result>

<!-- session超时页面跳转 -->

<result name="sessionTimeout">/sessionTimeout.jsp</result>

<!-- action返回json格式数据的配置 -->

<result name="response-json" type="stream">

<param name="contentType">text/html</param>

<param name="bufferSize">1024</param>

<param name="allowCaching">false</param>

</result>

</global-results>

</package>

<!-- 首页 -->

<!-- 引入其他action配置文件 -->

<include file="**action.xml"></include>

<include file="**action.xml"></include>

</struts>

2.SessionInterceptor超时拦截类

/**

* <p>Description:session超时拦截</p>

*/

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpSession;

import org.apache.struts2.StrutsStatics;

import com.opensymphony.xwork2.ActionContext;

import com.opensymphony.xwork2.ActionInvocation;

import com.opensymphony.xwork2.interceptor.AbstractInterceptor;

public class SessionInterceptor extends AbstractInterceptor {

private static final long serialVersionUID = 1L;

@Override

public String intercept(ActionInvocation ai) throws Exception {

ActionContext actionContext = ai.getInvocationContext();

//HttpServletResponse response = (HttpServletResponse) actionContext.get(StrutsStatics.HTTP_RESPONSE);

HttpServletRequest request = (HttpServletRequest) actionContext.get(StrutsStatics.HTTP_REQUEST);

HttpSession session = request.getSession();

String path = request.getContextPath();

String uri = request.getRequestURI();

//如果是登录或注销，则不进行判断

String loginAction = path+"/login_action";

String loginoutAction = path+"/loginout.action";

if(uri.startsWith(loginAction) || uri.startsWith(loginoutAction)){

ai.invoke();

}

//session为空 或 登陆用户信息为空

boolean empty = (session==null || session.getAttribute("LOGIN_USER_INFO")==null);

if(empty){

return "sessionTimeout";

}

return ai.invoke();

}

}

注： 权限拦截类和session超时拦截类类似。