这节课我们来完善登录功能:
Login.jsp:
<%@ page contentType="text/html;charset=UTF-8" language="java" %> <html> <head> <title>登录</title> </head> <body style="text-align: center"> <form style="margin-top: 100px;border: 1px solid black;text-align: center" action="/login" method="post"> <input type="text" name="username" placeholder="用户名"><br><br> <input type="password" name="password" placeholder="密码"><br><br> <!-- 这里开始涉及jsp的知识了，下节课开始讲，先看看效果 --> <% if (request.getAttribute("errorMsg") != null) { %> <scan style="color: red"><%=request.getAttribute("errorMsg")%></scan><br> <% } %> <button type="submit">登录</button> </form> </body> </html>