JSP权限控制源码(4)

            %> 
                <script language="javascript">window.location="membermain.jsp";</script> 
            <% 
                } 
              else{//修改失败 
            %> 
                <script language="javascript">window.history.go(-1);</script> 
            <% 
                } 
 
        }//End of <参数有效> 
        %> 
<% 
    }//End of <修改会员密码> 
    else if("logout".equalsIgnoreCase(action)) 
    {//会员注销:清空Session变量及已登录标志 
        //chengxiaoxu 2004-05-25 update code in here to best 
        if(permitBean != null) 
            permitBean.memberLogout(); 
        session.setAttribute("sessionPermit",null); 
        session.setAttribute("sessionMember",null); 
        PermitBean ssnPermit = (PermitBean)session.getAttribute("sessionPermit"); 
        String strLogin = ssnPermit==null ? "注销成功！" : "注销失败？？？"; 
 
%> 
        <script language="javascript"> 
            //alert("<%=strLogin %>"); 
            window.location="main.jsp"; 
        </script> 
<% 
    } 
    else 
    {//错误的页面请求 
%> 
        <script language="javascript"> 
        alert("无效的页面请求"); 
      window.history.go(-1);