JSP权限控制源码(3)

        %> 
            <script language="javascript"> 
                alert("<%=permitBean.getMsg() %>"); 
                window.history.go(-1); 
            </script> 
        <% 
            }//End of <登录失败> 
        }//End of <参数有效> 
    %> 
<% 
    }//End of <会员登录> 
    else if("update".equalsIgnoreCase(action)) 
    {//修改会员密码 
      //获取修改参数 
      String oldPwd= request.getParameter("oldPassword"); 
      String newPwd= request.getParameter("newPassword1"); 
      if(oldPwd == null || oldPwd == "" || newPwd == null || newPwd == "") 
      {//请求的参数无效 
    %> 
            <script language="javascript"> 
                alert("没有资料修改必须的请求参数！"); 
                window.history.go(-1); 
            </script> 
    <% 
        }//End of <请求的参数无效> 
        else 
        {//参数有效 
        %> 
            <% 
            boolean isOK = permitBean.changePassword((String)session.getAttribute("sessionUserAccount"),oldPwd,newPwd);  www.2cto.com
        %> 
            <script language="javascript">alert("<%=permitBean.getMsg() %>");</script> 
      <% 
          if(isOK) 
                {//修改成功