javaweb做一个漂亮的登录界面代码实现
时间: 2023-10-06 16:10:07 浏览: 79
好的,下面是一个简单的JavaWeb登录页面的代码实现,包含HTML、CSS和Java代码:
HTML代码:
```
<!DOCTYPE html>
<html>
<head>
<title>Login Page</title>
<link rel="stylesheet" type="text/css" href="style.css">
</head>
<body>
<div class="login-box">
<h2>Login Form</h2>
<form method="post" action="login">
<label>Username:</label><br>
<input type="text" name="username" placeholder="Enter Username"><br>
<label>Password:</label><br>
<input type="password" name="password" placeholder="Enter Password"><br>
<input type="submit" value="Login">
</form>
</div>
</body>
</html>
```
CSS代码:
```
body {
margin: 0;
padding: 0;
background: url(bg.jpg);
background-size: cover;
font-family: sans-serif;
}
.login-box {
width: 320px;
height: 420px;
background: rgba(0, 0, 0, 0.5);
color: #fff;
top: 50%;
left: 50%;
position: absolute;
transform: translate(-50%, -50%);
box-sizing: border-box;
padding: 70px 30px;
}
h2 {
margin: 0;
padding: 0 0 20px;
text-align: center;
font-size: 22px;
}
.login-box label {
margin: 0;
padding: 0;
font-weight: bold;
display: block;
}
.login-box input {
width: 100%;
margin-bottom: 20px;
}
.login-box input[type="text"], input[type="password"] {
border: none;
border-bottom: 1px solid #fff;
background: transparent;
outline: none;
height: 40px;
color: #fff;
font-size: 16px;
}
.login-box input[type="submit"] {
border: none;
outline: none;
height: 40px;
background: #fb2525;
color: #fff;
font-size: 18px;
border-radius: 20px;
}
.login-box input[type="submit"]:hover {
cursor: pointer;
background: #ffc107;
color: #000;
}
```
Java代码:
```
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class LoginServlet extends HttpServlet {
public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
response.setContentType("text/html");
PrintWriter out = response.getWriter();
String username = request.getParameter("username");
String password = request.getParameter("password");
if(username.equals("admin") && password.equals("admin123")) {
out.println("<h2>Welcome, " + username + "!</h2>");
} else {
out.println("<h2>Invalid username or password!</h2>");
request.getRequestDispatcher("index.html").include(request, response);
}
out.close();
}
}
```
上述代码中,HTML代码用于创建登录页面的基本元素,CSS代码用于美化登录页面的样式,Java代码用于处理用户输入并进行登录验证。当用户输入正确的用户名和密码时,程序将返回一个欢迎信息,否则将显示错误信息并重定向到登录页面。