servlet服务器端验证(2)

            </h1> 
            <form action="login" method="get"> 
                <table border="1"> 
                    <tr> 
                        <td> 
                            用 户 名: 
                        </td> 
                        <td> 
                            <input type="text" name="username"> 
                        </td> 
                    </tr> 
 
                    <tr> 
                        <td> 
                            密    码: 
                        </td> 
                        <td> 
                            <input type="password" name="password1"> 
                        </td> 
                    </tr>