为啥跳转不了页面，请各位大神提点提点
<h1>用户登录</h1>
<form action="dologin.jsp" name="doloning" method="get"></form>
<table>
<tr>
<td>用户名:</td>
<td><input type="text" name="username"/></td>
</tr>
<tr>
<td>密码:</td>
<td><input type="password" name="password"/></td>
</tr>
<tr>
<td colspan="2"><input type="submit" value="登录"></td>
</tr>
</table>
