DWR 过滤器验证权限
发布时间:2020-12-16 01:56:30 所属栏目:百科 来源:网络整理
导读:实现方法:在dwr每个方法调用前拦截验证权限 1.实现拦截器(需dwr2.0以上版本) package net.gkyh.util; import java.lang.reflect.Method; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpSession; import org.directwebremotin
实现方法:在dwr每个方法调用前拦截验证权限
1.实现拦截器(需dwr2.0以上版本) package net.gkyh.util; import java.lang.reflect.Method; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpSession; import org.directwebremoting.AjaxFilter; import org.directwebremoting.AjaxFilterChain; import org.directwebremoting.WebContext; import org.directwebremoting.WebContextFactory; public class DWRFilter implements AjaxFilter{ public Object doFilter(Object object,Method method,Object[] arr, AjaxFilterChain chain) throws Exception { //获取session WebContext ctx = WebContextFactory.get(); HttpServletRequest request = ctx.getHttpServletRequest(); HttpSession session = request.getSession(); String flag =(String) session.getAttribute("flag"); if(null == flag){ System.out.println("session验证失败"); return "session_error"; } //拦截调用方法 String methodName=method.getName(); System.out.println("拦截目标方法:"+methodName); if(!CheckLimit(methodName)){ System.out.println("权限验证失败"); return "limit_error"; } Object obj=chain.doFilter(object,method,arr); System.out.println("目标方法"+method.getName()+"执行结束"); return obj; } } 2.修改dwr.xml,添加红色部分 <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE dwr PUBLIC "-//GetAhead Limited//DTD Direct Web Remoting 1.0//EN" "http://www.getahead.ltd.uk/dwr/dwr10.dtd"> <dwr> <allow> <create javascript="TermManager" creator="spring" scope="application"> <param name="beanName" value="TermManager"></param> </create> <filter class="net.gkyh.util.DWRFilter"></filter> </allow> </dwr> 3.调用TermManager中的方法时会先执行DWRFilter拦截器 (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |