两个页面单独运行是可以的，但是跳转到loginIn.jsp页面时报404错误？？？

  <form name = "loginIn.jsp" action = "loginForm" method = "get">

  <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 = "登陆"></td>

  </tr>

  </table>

  </form>