ActiveMQ(3)-ActiveMQ+MySQL持久化

习惯了将数据保存到硬盘中，放在内存中难免会让人感觉到不安全。所以本篇演示一下如何将MQ中的数据吃就好到mysql数据库中。
ActiveMQ默认的持久化数据库为kahaDB，需要添加一些配置才可以完成操作。

1.修改配置文件

打开activemq.xml
做如下修改，dataSource名可以随机获取，这里使用mysql，所以使用my-ds

配置完成后，添加mysql的配置，id为上面的dataSource值，mysql数据库为activemq自行创建。

2.添加mysql驱动

准备好mysql驱动，打开activemq安装目录下的lib文件夹，将mysql驱动拷贝到该目录下。重启activemq服务。

3.创建生产者

创建生产者类，设置DeliveryMode为DeliveryMode.PERSISTENT

package com.mq.activemq_01.jdbc;

import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.DeliveryMode;
import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.MapMessage;
import javax.jms.MessageProducer;
import javax.jms.Session;

import org.apache.activemq.ActiveMQConnectionFactory;

public class Producer {

    private ConnectionFactory connectionFactory;
    private Connection connection;
    private Session session;
    private MessageProducer messageProducer;

    public Producer(){
        try {

            this.connectionFactory = new ActiveMQConnectionFactory( ActiveMQConnectionFactory.DEFAULT_USER,
                                                                    ActiveMQConnectionFactory.DEFAULT_PASSWORD, 
                                                                    "tcp://localhost:61616");
            this.connection = this.connectionFactory.createConnection();
            this.connection.start();
            this.session = this.connection.createSession(Boolean.FALSE, Session.AUTO_ACKNOWLEDGE);
            this.messageProducer = this.session.createProducer(null);

        } catch (Exception e) {
            // TODO: handle exception
        }
    }

    public void send1(){
        try {
            Destination destination = this.session.createQueue("one");

            MapMessage msg1 = this.session.createMapMessage();
            msg1.setString("loginName", "zs");
            msg1.setString("name", "zhangsan");
            msg1.setString("password", "123456");
            msg1.setInt("gender", 1);
            msg1.setInt("age", 9);
            msg1.setStringProperty("receiver", "A");

            MapMessage msg2 = this.session.createMapMessage();
            msg2.setString("loginName", "zs");
            msg2.setString("name", "zhangsan");
            msg2.setString("password", "123456");
            msg2.setInt("gender", 1);
            msg2.setInt("age", 19);
            msg2.setStringProperty("receiver", "B");

            MapMessage msg3 = this.session.createMapMessage();
            msg3.setString("loginName", "zs");
            msg3.setString("name", "zhangsan");
            msg3.setString("password", "123456");
            msg3.setInt("gender", 1);
            msg3.setInt("age", 9);
            msg3.setStringProperty("receiver", "A");

            MapMessage msg4 = this.session.createMapMessage();
            msg4.setString("loginName", "ls");
            msg4.setString("name", "lisi");
            msg4.setString("password", "123456");
            msg4.setInt("age", 29);
            msg4.setStringProperty("receiver", "A");

            this.messageProducer.send(destination, msg1, DeliveryMode.PERSISTENT, 2, 1000*60*2);
            this.messageProducer.send(destination, msg2, DeliveryMode.PERSISTENT, 3, 1000*60*2);
            this.messageProducer.send(destination, msg3, DeliveryMode.PERSISTENT, 7, 1000*60*2);
            this.messageProducer.send(destination, msg4, DeliveryMode.PERSISTENT, 8, 1000*60*2);

        } catch (JMSException e) {
            e.printStackTrace();
        }
    }

    public static void main(String[] args) {
        Producer p = new Producer();
        p.send1();
    }
}

4.查看持久化数据

执行3中程序，打开mysql数据客户端

持久化内容存放在activemq_msgs表中，打开表如下

这里使用的是MapMessage存放到数据库中为blog类型