java连接mysql 数据库小例子

import?java.sql.*;

public?class?JDBCTest?{

????public?static?void?main(String[]?args)?{
????????//?1.?注册驱动
????????try?{
????????????Class.forName("com.mysql.jdbc.Driver");
????????}?catch(ClassNotFoundException?ex)?{
????????????ex.printStackTrace();
????????}
????????
????????//?声明变量，使用，而后关闭
????????Connection?conn?=?null;????????//数据库连接
????????Statement?stmt?=?null;?????????//数据库表达式
????????ResultSet?rs?=?null;?????????????//结果集
????????
????????try?{
????????????//2.?获取数据库的连接
????????????conn?=?DriverManager.getConnection
????????????????("jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=GBK","root","");
????????????
???