Java连接MySQL数据库

create table user 
(id varchar(30),
password varchar(30));

insert into user 
values(‘tufujie‘,‘123456‘);

//演示如何使用com.mysql.jdbc连接桥连接MySQL
package com.tfj.db;

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

public class JavaCtMysql {
    public static void main(String[] args) {
        try {
            // 1.加载（载入）驱动
            Class.forName("com.mysql.jdbc.Driver");
            // 2.得到链接（注册）
            /*
             * Connection ct = DriverManager.getConnection(
             * "jdbc:mysql://localhost:3306/users?useUnicode=true&characterEncoding=UTF-8",
             * "root", "123456");
             */
            // 或者采用下面这种方式也行
            Connection ct = DriverManager
                    .getConnection("jdbc:mysql://localhost:3306/users?user=root&password=123456&useUnicode=true&characterEnconding=UTF-8");
            // 3.跟sql server一模一样，Sql语句
            if (ct != null && !ct.isClosed())
                System.out.println("数据库测试连接成功");
            Statement sm = ct.createStatement();
            ResultSet rs = sm.executeQuery("select * from user");
            while (rs.next()) {
                // 用户名
                System.out.println("管理员名字：" + rs.getString(1) + "密码：" + rs.getString(2));
            }
            // 关闭打开的资源
            rs.close();
            sm.close();
            ct.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}