java如何使用jdbc连接TDSQL数据库

<dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <version>8.0.28</version> <!-- 推荐使用8.x版本 -->
</dependency>

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;

public class TDSQLDemo {
    // TDSQL连接信息（根据实际情况修改）
    private static final String JDBC_URL = "jdbc:mysql://[TDSQL主机]:[端口]/[数据库名]?useSSL=false&serverTimezone=Asia/Shanghai";
    private static final String USER = "your_username";
    private static final String PASSWORD = "your_password";

    public static void main(String[] args) {
        try {
            // 1. 注册JDBC驱动（可选，新版JDBC自动加载）
            Class.forName("com.mysql.cj.jdbc.Driver");

            // 2. 建立连接
            try (Connection conn = DriverManager.getConnection(JDBC_URL, USER, PASSWORD)) {
                System.out.println("连接TDSQL成功！");

                // 3. 创建Statement
                try (Statement stmt = conn.createStatement()) {
                    
                    // 4. 执行SQL查询
                    String sql = "SELECT 1 + 1 AS result";
                    try (ResultSet rs = stmt.executeQuery(sql)) {
                        
                        // 5. 处理结果集
                        while (rs.next()) {
                            System.out.println("查询结果: " + rs.getInt("result"));
                        }
                    }
                    
                    // 示例：插入数据
                    // String insertSQL = "INSERT INTO users(name) VALUES('测试用户')";
                    // int rows = stmt.executeUpdate(insertSQL);
                    // System.out.println("插入行数: " + rows);
                }
            }
        } catch (Exception e) {
            System.err.println("连接TDSQL失败：" + e.getMessage());
            e.printStackTrace();
        }
    }
}

import com.zaxxer.hikari.HikariConfig;
import com.zaxxer.hikari.HikariDataSource;

public class ConnectionPool {
    private static HikariDataSource dataSource;

    static {
        HikariConfig config = new HikariConfig();
        config.setJdbcUrl(JDBC_URL);
        config.setUsername(USER);
        config.setPassword(PASSWORD);
        config.addDataSourceProperty("connectionTimeout", "30000");
        config.addDataSourceProperty("maximumPoolSize", "20");
        dataSource = new HikariDataSource(config);
    }

    public static Connection getConnection() throws SQLException {
        return dataSource.getConnection();
    }
}