加载jdbc驱动有几种方法

方法一：Class.forName("驱动路径")
如：Class.forName("oracle.jdbc.driver.OracleDriver")
方法二：DriverManager.registerDriver(驱动实例)
如：DriverManager.registerDriver(new oracle.jdbc.OracleDriver())

　　第一种Driver import java.sql.*;
　　import java.util.Properties;
　　public class GG { public static void main(String[] args) { try { Driver driver = new com.mysql.jdbc.Driver(); String url = "jdbc:mysql://localhost:3309/hh"; Properties info = new Properties(); info.setProperty("user", "root"); info.setProperty("password", "root"); Connection conn = driver.connect(url, info); System.out.println("conn" + conn); } catch (SQLException e) { e.printStackTrace(); } } }
　　第二种：DriverManage import java.sql.*;
　　import java.util.Properties;
　　public class HH { public static void main(String[] args) { try { Driver driver = new com.mysql.jdbc.Driver(); DriverManager.registerDriver(driver); String url = "jdbc:mysql://localhost:3309/hh"; Properties info = new Properties(); info.setProperty("user", "root"); info.setProperty("password", "root"); Connection conn = DriverManager.getConnection(url, info); System.out.println("conn" + conn); } catch (SQLException e) { // TODO Auto-generated catch block e.printStackTrace(); } }

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　　}
　　第三种class.forname（）
　　import java.sql.*;
　　import java.util.Properties; public class EE {
　　public static void main(String[] args) { // TODO Auto-generated method stub try {
　　Class.forName("com.mysql.jdbc.Driver");
　　String url = "jdbc:mysql://localhost:3309/hh"; Properties info = new Properties(); info.setProperty("user", "root");
　　info.setProperty("password", "root"); Connection conn;
　　conn = DriverManager.getConnection(url, info); System.out.println("conn" + conn); } catch (ClassNotFoundException e) { // TODO Auto-generated catch block e.printStackTrace(); }catch (SQLException e) {
　　// TODO Auto-generated catch block e.printStackTrace(); } } }

type 1:jdbc-odbc桥
type 2:本地api驱动
type 3:网络协议驱动
type 4:本地协议驱动

同意楼上说的