JDBC使用步骤

JDBC编程步骤

• 加载驱动程序：Class.forName(driverClass)

　　加载Mysql驱动：Class.forName("com.mysql.jdbc.Driver")

　　加载Oracle驱动：Class.forName("oracle.jdbc.driver.OracleDriver")

• 获取数据库连接：

　　DriverManager.getConnection("jdbc:mysql://127.0.0.1:3306/DatabaseName","userName","password")

• 创建Statement对象：

　　conn.createStatement();

如下面的代码连接数据库：

 1 package com.gui;

 2 

 3 import java.sql.Connection;

 4 import java.sql.DriverManager;

 5 import java.sql.ResultSet;

 6 import java.sql.Statement;

 7 

 8 public class DBUtil {

 9 

10     private static final String URL = "jdbc:mysql://127.0.0.1:3306/imooc";

11     private static final String USER = "root";

12     private static final String PASSERWORD = "123";

13 

14     public static void main(String[] args) throws Exception {

15 

16         // 1.加载驱动程序

17         Class.forName("com.mysql.jdbc.Driver");

18 

19         // 2.获取数据库的连接

20         Connection conn = DriverManager.getConnection(URL, USER, PASSERWORD);

21 

22         // 3.通过数据库的连接操作数据库，实现增删改

23         Statement stmt = conn.createStatement();

24         ResultSet rs = stmt

25                 .executeQuery("select user_name,age from imooc_goddess");

26 

27         while (rs.next()) {

28             System.out.println(rs.getString("user_name") + ","

29                     + rs.getString("age"));

30 

31         }

32 

33     }

34 }