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1. Write an action first
package action; public class InterceptorAction { public String fun1() { return "ok"; }}
2. Configure action
<package name="base" extends="struts-default"> <global-results> <result name="message">/index.jsp</result> <result name="message">/WEB-INF/page/message.jsp </result> </global-results> </package> <package name="delversi" namespace="/test" extends="base"> <interceptors> <interceptor name="permission" class="interceptor.InterceptorDemo"></interceptor> <interceptor-stack name="permissionStack"> <interceptor-ref name="defaultStack"></interceptor-ref> <interceptor-ref name="permission"></interceptor-ref> </interceptor-stack> </interceptors> <action name="interceptor_*" class="action.InterceptorAction" method="{1}"> <interceptor-ref name="permission"></interceptor-ref> <result name="ok">/ddd.jsp</result> </action>
The interceptor stack is defined to be able to use the system's built-in interceptors
3. Write a permission blocker
package interceptor; import com.opensymphony.xwork2.ActionContext; import com.opensymphony.xwork2.ActionInvocation; import com.opensymphony.xwork2.interceptor.Interceptor; public class InterceptorDemo implements Interceptor { public void destroy() { // TODO Auto-generated method stub } public void init() { // TODO Auto-generated method stub } public String intercept(ActionInvocation invocation) throws Exception { System.out.println("Enter interceptor"); } if (ActionContext.getContext().getSession().get("user") !=null ) { return invocation.invoke(); }else { ActionContext.getContext().put("message", "no permission"); return "message"; } }}Logged in, returned OK, and returned message if not
4. Write a jsp and inject user into the session
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%><% request.getSession().setAttribute("user","111");%>
Please indicate the source for reprintinghttp://blog.csdn.net/z1104222568/article/details/42218125
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Posted on 12/28/2014 9:32:45 PM
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Posted on 12/28/2014 9:39:26 PM
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Landlord|
Posted on 12/29/2014 12:25:29 AM
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