jdbc连接oracle数据库代码

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;

public class OracleJDBCConnection {
    public static void main(String[] args) {
        Connection connection = null;
        try {
            // 加载Oracle JDBC驱动程序
            Class.forName("oracle.jdbc.driver.OracleDriver");
            
            // 数据库URL
            String url = "jdbc:oracle:thin:@localhost:1521:orcl";
            // 用户名和密码
            String user = "username";
            String password = "password";
            
            // 建立连接
            connection = DriverManager.getConnection(url, user, password);
            
            System.out.println("成功连接到Oracle数据库！");
        } catch (ClassNotFoundException e) {
            System.out.println("找不到Oracle JDBC驱动程序！");
            e.printStackTrace();
        } catch (SQLException e) {
            System.out.println("连接Oracle数据库失败！");
            e.printStackTrace();
        } finally {
            try {
                if (connection != null) {
                    connection.close();
                }
            } catch (SQLException e) {
                e.printStackTrace();
            }
        }
    }
}