struts中用拦截器实现登录验证功能AuthorizationInterceptor

用拦截器实现登录验证功能authorizationinterceptor

package com.interceptor;  

import com.opensymphony.xwork2.actioninvocation;  

import com.opensymphony.xwork2.interceptor.*;  

import com.opensymphony.xwork2.*;  

import java.util.*;  

public class authorizationinterceptor extends abstractinterceptor {  

    private string ignoreactions;  

    @override 

    public string intercept(actioninvocation invocation) throws exception {  

        actioncontext ctx = invocation.getinvocationcontext();  

        map session = ctx.getsession();  

        string user = (string) session.get("username");  

        boolean ignore = false;  

        string currentaction = invocation.getproxy().getactionname();  

        string[] actions = ignoreactions.split(",");  

        for (string action : actions) {  

            if (currentaction.matches(action.trim())) {  

                ignore = true;  

                break;  

            }  

        }  

        if (user != null || ignore == true) { 

            return invocation.invoke();  

        } else {  

            return action.login;  

    }

    public string getignoreactios() {  

        return ignoreactions;  

    }  

    public void setignoreactions(string ignoreactions) {  

        this.ignoreactions = ignoreactions;  

}

在struts.xml文件里面配置该拦截器

<interceptors>   

    <interceptor name="authorization" class="com.interceptor.authorizationinterceptor" />   

    <interceptor-stack name="mystack">   

        <interceptor-ref name="authorization">   

            <param name="ignoreactions"> validate_code,register.*,.*login.*,upload,connector</param>   

        </interceptor-ref>

        <interceptor-ref name="defaultstack" />  

    </interceptor-stack>   

</interceptors>   

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

原帖地址:http://www.cnblogs.com/jobscn/archive/2011/11/22/2258343.html