在jsp中用bean和servlet联合实现用户注册、登录

在jsp中用bean和servlet联合实现用户注册、登录(12)         <tr>
          <td width="120">&nbsp;</td>
          <td class="caption">Shopping123</td>
          <td width="200">&nbsp;</td>
        </tr>
      </table></td>
  </tr>
  <tr>
    <td width="200" align="center" valign="top"><table width="100%" height="20" border="0" cellpadding="0" cellspacing="0">
        <tr>
          <td>&nbsp;</td>
        </tr>
      </table>
   <%
    if(!login){
   %>
      <table width="90%" border="0" align="center" cellpadding="0" cellspacing="1" bgcolor="#CCCCCC">
   <form name="form1" method="post" action="/servlet/login">
        <tr align="center" bgcolor="#CCCCCC">
          <td height="30" colspan="2" class="deepred">卖场入口</td>
        </tr>
        <tr>
          <td width="50%" height="24" align="center" bgcolor="#FFFFFF">会员</td>
          <td align="center" bgcolor="#FFFFFF"><input name="username" type="text" id="username" size="10"></td>
        </tr>
        <tr>
          <td height="24" align="center" bgcolor="#FFFFFF">密码</td>