Android连接MySQL数据库详细教程

CREATE DATABASE test;
USE test;
 
CREATE TABLE users (
  id INT NOT NULL AUTO_INCREMENT,
  name VARCHAR(50),
  email VARCHAR(50),
  PRIMARY KEY (id)
);

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
 
public class MySQLConnection {
    private static final String URL = "jdbc:mysql://localhost:3306/test";
    private static final String USER = "root";
    private static final String PASSWORD = "password";
    
    public static Connection getConnection() throws SQLException {
        try {
            Class.forName("com.mysql.jdbc.Driver");
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        }
        return DriverManager.getConnection(URL, USER, PASSWORD);
    }
}

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
 
public class MySQLQuery {
    public static void main(String[] args) throws SQLException {
        Connection conn = MySQLConnection.getConnection();
        
        // 查询 users 表中的所有数据
        String query = "SELECT * FROM users";
        PreparedStatement ps = conn.prepareStatement(query);
        ResultSet rs = ps.executeQuery();
        while (rs.next()) {
            int id = rs.getInt("id");
            String name = rs.getString("name");
            String email = rs.getString("email");
            System.out.println("id: " + id + ", name: " + name + ", email: " + email);
        }