jsp注册登录页面代码
时间: 2023-08-27 16:05:40 浏览: 53
以下是一个简单的 JSP 注册登录页面代码:
注册页面 register.jsp:
```
<html>
<head>
<title>用户注册</title>
</head>
<body>
<h2>用户注册</h2>
<form action="registerProcess.jsp" method="post">
用户名:<input type="text" name="username"><br>
密码:<input type="password" name="password"><br>
确认密码:<input type="password" name="confirm_password"><br>
<input type="submit" value="注册">
</form>
</body>
</html>
```
登录页面 login.jsp:
```
<html>
<head>
<title>用户登录</title>
</head>
<body>
<h2>用户登录</h2>
<form action="loginProcess.jsp" method="post">
用户名:<input type="text" name="username"><br>
密码:<input type="password" name="password"><br>
<input type="submit" value="登录">
</form>
<a href="register.jsp">没有账号?点击注册</a>
</body>
</html>
```
注册处理页面 registerProcess.jsp:
```
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ page import="java.sql.*" %>
<%
String username = request.getParameter("username");
String password = request.getParameter("password");
String confirm_password = request.getParameter("confirm_password");
if (!password.equals(confirm_password)) {
out.println("<h2>两次输入的密码不一致</h2>");
return;
}
try {
Class.forName("com.mysql.jdbc.Driver");
Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/test", "root", "password");
String sql = "insert into user (username, password) values (?, ?)";
PreparedStatement pstmt = conn.prepareStatement(sql);
pstmt.setString(1, username);
pstmt.setString(2, password);
pstmt.executeUpdate();
out.println("<h2>注册成功!</h2>");
pstmt.close();
conn.close();
} catch (Exception e) {
out.println("<h2>注册失败!</h2>");
e.printStackTrace();
}
%>
```
登录处理页面 loginProcess.jsp:
```
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ page import="java.sql.*" %>
<%
String username = request.getParameter("username");
String password = request.getParameter("password");
try {
Class.forName("com.mysql.jdbc.Driver");
Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/test", "root", "password");
String sql = "select * from user where username=? and password=?";
PreparedStatement pstmt = conn.prepareStatement(sql);
pstmt.setString(1, username);
pstmt.setString(2, password);
ResultSet rs = pstmt.executeQuery();
if (rs.next()) {
out.println("<h2>登录成功!</h2>");
} else {
out.println("<h2>用户名或密码错误!</h2>");
}
rs.close();
pstmt.close();
conn.close();
} catch (Exception e) {
out.println("<h2>登录失败!</h2>");
e.printStackTrace();
}
%>
```
需要注意的是,这只是一个简单的示例代码,实际应用中需要加入更多的判断和安全措施。同时,使用 JSP 进行页面渲染和数据库操作已经不是最佳实践,可以考虑使用 Spring MVC 或者其他现代化的 Web 框架进行开发。