流程是这样的,登录,采用ajax根据用户名把密码从数据库取出来,再和用户输入的密
码对比,我在取密码的时候,就已经设置了session值(代码1),密码匹配则跳转到主
页面,主页面(index.jsp)是一个用frameset设置的框架(代码2),我想在其中一个
frame(admin_top.jsp)显示用户名,用作欢迎信息(代码3),但是呢,session取出来的值是NULL。
我在(代码1)中输出了session,值也没错。这是为什么呢?麻烦大家给点意见;
代码1:
//这句SQL语句要改
String sql ="select Admin_Pwd from tb_admin where Admin_Account="+"'"+username+"'";
ps = conn.prepareStatement(sql);
rs = ps.executeQuery();
if (rs.next()) // 说明查询到了客户记录
{
HttpSession session = request.getSession();
session.setAttribute("adminUser",username);
System.out.println(username+" "+session.getAttribute("adminUser"));
String password = "";
password = rs.getString(1);
out.write(password);
//System.out.println(password);
} else {
out.write("nouser");
}
代码2
<frameset rows="64,*" frameborder="NO" border="0" framespacing="0">
<frame src="BackStage/admin_top.jsp" noresize="noresize" frameborder="NO"
name="topFrame" scrolling="no" marginwidth="0" marginheight="0"
target="main" />
<frameset cols="186,*" rows="860,*" id="frame">
<frame src="BackStage/left.jsp" name="leftFrame" noresize="noresize"
marginwidth="0" marginheight="0" frameborder="0" scrolling="no"
target="main" />
<frame src="BackStage/customer_manage.jsp" name="main" marginwidth="0" marginheight="0"
frameborder="0" scrolling="auto" target="_self" />
</frameset>
</frameset>
<noframes>
<body>
<%=session.getAttribute("adminUser")%>
</body>
</noframes>
代码3
<td width="78%" height="64" class="admin_txt">管理员:${SessionScope.adminUser} 您好,感谢登陆使用!
<object>
系统时间:
<embed style="RIGHT: 390px; POSITION: absolute; TOP: -12px"
align=center src=BackStage/images/Time.swf width="100"
height="60 " type=application/x-shockwave-flash
wmode="transparent" quality="high";>
</embed>
</object></td>