mysql –docker

1. 下载docker，配置用户权限

sudo usermod -aG docker your_username

1. 拉取mysql镜像并启动

docker run -d --name mysqltest -v ${pwd}/mysql:/var/lib/mysql -e MYSQL_ROOT_PASSWORD=123456 -p 3306:3306 daocloud.io/library/mysql

1. 进入mysql容器并添加数据表和记录

doker exec -it mysqltest sh

mysql -uroot -p123456

create database EXAMPLE;
use EXAMPLE;

create table students(
id int unsigned not null auto_increment primary key,
name char(8) not null,
sex char(4) not null,
age tinyint unsigned not null,
tel char(13) null default "-");

insert into students (name, sex, age) values("xie", "m", 21);

maven

1. 新建maven工程
   在pom.xml中添加依赖

 <dependencies>

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.19</version>
    </dependency>
    </dependencies>

源码

1. 连接数据库，并获取记录

import java.sql.*;

public class mysqltest {
    // JDBC驱动器名称和数据库地址
    static final String JDBC_DRIVER = "com.mysql.jdbc.Driver";
    // 数据库的名称为EXAMPLE
    static final String DB_URL = "jdbc:mysql://192.168.56.201:3306/EXAMPLE";

    // 数据库用户和密码
    static final String USER = "root";

    static final String PASS = "123456";

    public static void main(String[] args) {
        Connection conn = null;
        Statement stmt = null;
        try {

            //注册JDBC 驱动程序
            Class.forName("com.mysql.jdbc.Driver");

            //打开连接
            System.out.println("Connecting to database...");
            conn = DriverManager.getConnection(DB_URL, USER, PASS);

            //执行查询
            System.out.println("Creating statement...");
            stmt = conn.createStatement();
            String sql;
            sql = "SELECT id, name, age FROM students";
            ResultSet rs = stmt.executeQuery(sql);

            //得到和处理结果集
            while (rs.next()) {
                //检索
                int id = rs.getInt("id");
                int age = rs.getInt("age");
                String name = rs.getString("name");

                //显示
                System.out.print("ID: " + id);
                System.out.print(", Age: " + age);
                System.out.print(", Name: " + name);
                System.out.println();
            }
            //清理环境
            rs.close();
            stmt.close();
            conn.close();
        } catch (SQLException se) {
            // JDBC 操作错误
            se.printStackTrace();
        } catch (Exception e) {
            // Class.forName 错误
            e.printStackTrace();
        } finally {
            //这里一般用来关闭资源的
            try {
                if (stmt != null)
                    stmt.close();
            } catch (SQLException se2) {
            }
            try {
                if (conn != null)
                    conn.close();
            } catch (SQLException se) {
                se.printStackTrace();
            }
        }
        System.out.println("Goodbye!");
    }

}