使用JDBC和Python连接Oracle数据库

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

public class JdbcExample {
    public static void main(String[] args) {
        String url = "jdbc:oracle:thin:@localhost:1521:orcl";
        String user = "username";
        String password = "password";

        try (Connection conn = DriverManager.getConnection(url, user, password);
             Statement stmt = conn.createStatement();
             ResultSet rs = stmt.executeQuery("SELECT * FROM employees")) {

            while (rs.next()) {
                System.out.println(rs.getString("name"));
            }
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}

import cx_Oracle

# 连接到Oracle数据库
dsn = cx_Oracle.makedsn('localhost', 1521, service_name='orcl')
connection = cx_Oracle.connect(user='username', password='password', dsn=dsn)

# 创建游标并执行查询
cursor = connection.cursor()
cursor.execute("SELECT * FROM employees")

# 获取并打印结果
for row in cursor:
    print(row[0])

# 关闭连接
cursor.close()
connection.close()