我要评论jsp权限控制
偶然翻到很多年前，刚学java的时候学的一段代码。或许，现在让写，还写不出来了。技术如潮、不进则退。还是年轻好啊，思路清晰、精神充沛。
[java]
<%@ page contenttype="text/html; charset=gb2312" %>
<%@ page import="qlsoft.pwebs.business.permitbean" %>
<:usebean id="permitbean" scope="session" class="qlsoft.pwebs.business.permitbean" />
<%@ page import="qlsoft.pwebs.business.memberbean" %>
<jsp:usebean id="memberbean" scope="session" class="qlsoft.pwebs.business.memberbean" />
<%
string action= request.getparameter("action");
%>
<script language="javascript">
//alert("permit request action:" + "<%=action%>");
</script>
<%
if("login".equalsignorecase(action))
{//会员登录:验证用户身份,并设置session变量及已登录标志
//获取登录参数
string username= request.getparameter("username");
string userpwd= request.getparameter("password");
system.out.println("帐号:" + username + "密码:" + userpwd);
if(username == null || username == "" || userpwd == null || userpwd == "")
{//请求的参数无效
%>
<script language="javascript">
alert("没有会员登录必须的请求参数！");
window.history.go(-1);
</script>
<%
}
else
{//参数有效
if(permitbean.memberlogin(username,userpwd))
{//登录成功
//chengxiaoxu 2004-05-25 remark code in here to best
session.setattribute("sessionpermit",permitbean);
permitbean ssnpermit = (permitbean)session.getattribute("sessionpermit");
string strlogin = ssnpermit.getislogin() ? "登录成功！" : "登录失败？？？";
string ackname = ssnpermit.getmgrackname();
system.out.println("会员帐号:" + strlogin + "\n" + ackname);
if(memberbean.getbeaninfobyid(ssnpermit.getmemberid()))
{
system.out.println("提取会员信息成功！");
session.setattribute("sessionmember",memberbean);
}
%>
<script language="javascript">
//alert("<%=strlogin %>");
//alert("<%=permitbean.getmsg() %>");
//window.target="_blank";
//此处完成后应该是会员管理中心主页面
window.location="membermain.jsp";
</script>
<%
}
else
{//登录失败
%>
<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);
%>
<script language="javascript">alert("<%=permitbean.getmsg() %>");</script>
<%
if(isok)
{//修改成功
%>
<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);
</script>
<%
}//end of <错误的页面请求>
%>
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