JDBC 连接 Oracle 数据库

import java.sql.Connection;

import java.sql.DriverManager;

import java.sql.PreparedStatement;

import java.sql.ResultSet;

import java.sql.SQLException;



/**

 * JDBC 连接 Oracle 数据库

 * 

 * @author zhanqi

 * 

 */

public class ORACLE {



    private static String driver = "oracle.jdbc.driver.OracleDriver";

    private static String url = "jdbc:oracle:thin:@127.0.0.1:1521:orcl";



    public static void main(String[] args) {

        Connection ct = null;

        PreparedStatement ps = null;

        ResultSet rs = null;

        try {

            // 加载驱动类

            Class.forName(driver);

            // 得到连接

            ct = DriverManager.getConnection(url, "scott", "scott");

            // 得到预编译的 SQL 语句的对象

            ps = ct.prepareStatement("select count(*) from emp");

            // 得到结果集

            rs = ps.executeQuery();

            // 循环取出记录

            while (rs.next()) {

                System.out.println(rs.getInt(1));

            }

        } catch (Exception e) {

            e.printStackTrace();

        } finally {

            // 关闭资源

            try {

                if (rs != null) {

                    rs.close();

                }

                if (ps != null) {

                    ps.close();

                }

                if (ct != null) {

                    ct.close();

                }

            } catch (SQLException e) {

                e.printStackTrace();

            }

        }

    }

}

附：

• Oracle JDBC driver：下载
• Oracle JDBC driver：Oracle安装目录：F:\app\zhanqi\product\11.2.0\dbhome_1\jdbc\lib