判断用户注册的帐号能否注册

Posted 2020-10-16 can丶

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<%@ page language="java" import="java.sql.*" contentType="text/html;charset=utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>检验注册页面</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
<br>
<%
request.setCharacterEncoding("utf-8");
String users=request.getParameter("username");
String pass=request.getParameter("pwd");
%>
<%
String driver = "com.mysql.jdbc.Driver";
String url = "jdbc:mysql://127.0.0.1:3307/login";
String use = "root";
String password = "960404";
Class.forName(driver);
Connection conn= DriverManager.getConnection(url,use,password);
PreparedStatement sql =conn.prepareStatement("insert into student(username,password)values(?,?)");
sql.setString(1,users);
sql.setString(2,pass);
int rtn=sql.executeUpdate();
sql.close();
conn.close();
%>
</body>
</html>

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