1. <body>
    2.     <h1>用户登录</h1>
    4.     <form action="${pageContext.request.contextPath}/user/login" method="post">
    5.         用户名：<input type="text" name="username"><br>
    6.         密码  ：<input type="password" name="password"><br>
    7.         请输入验证码：<input type="text" name="code"> <img src="${pageContext.request.contextPath}/user/getImage" alt=""><br>
    8.         <input type="submit" value="登录">
    9.     </form>
    10. </body>