1.最简单的JDBC实例（MySQL）

1 源代码

package cn.itcast.jdbc;

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


public class Base {

	/**
	 * @param args
	 * @throws Exception
	 */
	public static void main(String[] args) throws Exception {
		test();
	}

	static void test() throws SQLException, ClassNotFoundException {
		// 1.注册驱动（一共三种注册驱动的方式）
		//DriverManager.registerDriver(new com.mysql.jdbc.Driver());
		//System.setProperty("jdbc.drivers", "com.mysql.jdbc.Driver");
		Class.forName("com.mysql.jdbc.Driver");// 推荐方式

		// 2.建立连接
		String url = "jdbc:mysql://10.105.43.220:3306/jdbc";
		String user = "sa";
		String password = "123456";
		Connection conn = DriverManager.getConnection(url, user, password);

		// 3.创建语句
		Statement st = conn.createStatement();

		// 4.执行语句
		ResultSet rs = st.executeQuery("select * from user");

		// 5.处理结果
		while (rs.next()) {
			System.out.println(rs.getObject(1) + "\t" + rs.getObject(2) + "\t"
					+ rs.getObject(3) + "\t" + rs.getObject(4));
		}

		// 6.释放资源
		rs.close();
		st.close();
		conn.close();
	}
}

2 MySQL驱动