增刪改查

jiuwen567發表於2024-03-23
<%--
  Created by IntelliJ IDEA.
  User: 和
  Date: 2020/9/23
  Time: 9:16
  To change this template use File | Settings | File Templates.
--%>
<%@ page import="java.sql.Connection" %>
<%@ page import="java.sql.Driver" %>
<%@ page import="java.sql.DriverManager" %>
<%@ page import="java.sql.Statement" %><%--
  Created by IntelliJ IDEA.
  User: 了
  Date: 2020/9/23
  Time: 9:21
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title></title>
</head>
<body>
<jsp:useBean id="user" class="com.media.bean.UserBean" scope="application"></jsp:useBean>
<jsp:setProperty name="user" property="*"></jsp:setProperty>
<%
    //UserBean user1=new UserBean();
    //user.setUsername(request.getParameter("username"));
    //out.print(user.getUsername());

    //載入驅動程式
    Class.forName("com.mysql.jdbc.Driver");

    //建立資料庫連線
    String url = "jdbc:mysql://127.0.0.1:3306/book?user=root&password=root";

    Connection connection = DriverManager.getConnection(url);//獲得連結物件

    String sql = "INSERT INTO user (username,password,gender,age) VALUES('"+user.getUsername()+"','"+user.getPassword()+"',1,23)";

    Statement stmt = connection.createStatement();

    //String sql="update user set status = 5 where id = 13";

   // String sql="delete from user where id=12";

    int count = stmt.executeUpdate(sql);

    if(count > 0){
        out.print("註冊成功");
    }else {
        out.print("註冊失敗");
    }

%>

</body>
</html>

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