商品上架（下架省略）

商品上架流程（最终版本）
在这里插入图片描述
只演示商品上架时消息中间件的使用，商品下架基本相同

一、在controller中，将原先使用dubbo传递过来的service注释掉，同时将方法中的service方法也注释掉

//    @Reference
//    private SolrManagerService solrManagerService;
//    @Reference
//    private CmsService cmsService;

@RequestMapping("/updateStatus")
    public Result updateStatus(Long[] ids, String status){
        try {
            if (ids!=null){
                for (Long id : ids) {
                    //更新商品状态
                    goodsService.updateStatus(id,status);
                    //当审核通过时
//                    if ("1".equals(status)){
//                        //1、将库存数据存储到索引库中
//                        solrManagerService.importItemDataToSolr(id);
//                        //2、创建商品详情页面
//                        Map<String, Object> goodsInfo = cmsService.getGoodsInfo(id);
//                        cmsService.createGoodsInfoPage(id,goodsInfo);
//                    }
                }
            }
            return new Result(true,"状态修改成功！");
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false,"状态修改失败！");
        }
    }

二、配置消息的发送方

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:amq="http://activemq.apache.org/schema/core"
	xmlns:jms="http://www.springframework.org/schema/jms"
	xsi:schemaLocation="http://www.springframework.org/schema/beans   
		http://www.springframework.org/schema/beans/spring-beans.xsd
		http://www.springframework.org/schema/context   
		http://www.springframework.org/schema/context/spring-context.xsd">
		
	
	   
    <!-- 真正可以产生Connection的ConnectionFactory，由对应的 JMS服务厂商提供-->  
	<bean id="targetConnectionFactory" class="org.apache.activemq.ActiveMQConnectionFactory">  
	    <property name="brokerURL" value="tcp://192.168.200.128:61616"/>  
	</bean>
	   
    <!-- Spring用于管理真正的ConnectionFactory的ConnectionFactory -->  
	<bean id="connectionFactory" class="org.springframework.jms.connection.SingleConnectionFactory">  
	<!-- 目标ConnectionFactory对应真实的可以产生JMS Connection的ConnectionFactory -->  
	    <property name="targetConnectionFactory" ref="targetConnectionFactory"/>  
	</bean>  
		   
    <!-- Spring提供的JMS工具类，它可以进行消息发送、接收等 -->  
	<bean id="jmsTemplate" class="org.springframework.jms.core.JmsTemplate">  
	    <!-- 这个connectionFactory对应的是我们定义的Spring提供的那个ConnectionFactory对象 -->  
	    <property name="connectionFactory" ref="connectionFactory"/>  
	</bean>   
	
	<!-- 发布订阅模式, 商品导入索引库和生成静态页面 -->
	<bean id="topicPageAndSolrDestination" class="org.apache.activemq.command.ActiveMQTopic">
	    <constructor-arg value="pinyougou_topic_page_solr"/>  
	</bean>
	   
	
	<!-- 点对点模式，删除索引库-->  
	<bean id="queueSolrDeleteDestination" class="org.apache.activemq.command.ActiveMQQueue">  
	    <constructor-arg value="pinyougou_queue_solr_delete"/>  
	</bean>  
	
</beans>

三、发送消息

注入JmsTemplate和订阅发布模式（注意需要与配置文件中对应）

//上架队列
    @Autowired
    private ActiveMQTopic topicPageAndSolrDestination;
    @Autowired
    private JmsTemplate jmsTemplate;

@Override
    public void updateStatus(final Long id, String status) {
        /**
         * 商品状态修改
         */
        //修改商品的状态码
        Goods goods = new Goods();
        goods.setId(id);
        goods.setAuditStatus(status);
        goodsDao.updateByPrimaryKeySelective(goods);
        //修改库存的状态码
        Item item = new Item();
        item.setStatus(status);

        ItemQuery itemQuery = new ItemQuery();
        ItemQuery.Criteria criteria = itemQuery.createCriteria();
        criteria.andGoodsIdEqualTo(id);
        itemDao.updateByExampleSelective(item,itemQuery);

        /**
         * 发送消息
         */
        if ("1".equals(status)){
            jmsTemplate.send(topicPageAndSolrDestination, new MessageCreator() {
                @Override
                public Message createMessage(Session session) throws JMSException {
                    TextMessage textMessage = session.createTextMessage(String.valueOf(id));
                    return textMessage;
                }
            });
        }
    }

四、配置消息的接收方（共有两个消息接收方）

消息接收方一：用于将数据导入solr索引库

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:amq="http://activemq.apache.org/schema/core"
	xmlns:jms="http://www.springframework.org/schema/jms"
	xsi:schemaLocation="http://www.springframework.org/schema/beans   
		http://www.springframework.org/schema/beans/spring-beans.xsd
		http://www.springframework.org/schema/context   
		http://www.springframework.org/schema/context/spring-context.xsd">
	
    <!-- 真正可以产生Connection的ConnectionFactory，由对应的 JMS服务厂商提供-->  
	<bean id="targetConnectionFactory" class="org.apache.activemq.ActiveMQConnectionFactory">  
	    <property name="brokerURL" value="tcp://192.168.200.128:61616"/>  
	</bean>
	   
    <!-- Spring用于管理真正的ConnectionFactory的ConnectionFactory -->  
	<bean id="connectionFactory" class="org.springframework.jms.connection.SingleConnectionFactory">  
	<!-- 目标ConnectionFactory对应真实的可以产生JMS Connection的ConnectionFactory -->  
	    <property name="targetConnectionFactory" ref="targetConnectionFactory"/>  
	</bean>  
	
	<!--发布订阅模式, 将数据导入solr索引库-->  
	<bean id="topicPageAndSolrDestination" class="org.apache.activemq.command.ActiveMQTopic">  
	    <constructor-arg value="pinyougou_topic_page_solr"/>  
	</bean>    
	
	<!-- 发布订阅模式, 消息监听容器, 将数据导入solr索引库 -->
	<bean class="org.springframework.jms.listener.DefaultMessageListenerContainer">
		<property name="connectionFactory" ref="connectionFactory" />
		<property name="destination" ref="topicPageAndSolrDestination" />
		<property name="messageListener" ref="pageAndSolrListener" />
	</bean>
	<bean id="pageAndSolrListener" class="cn.itcast.core.listener.ItemSearchListener"></bean>
	
	
	<!-- 点对点模式，删除索引库-->  
	<bean id="queueSolrDeleteDestination" class="org.apache.activemq.command.ActiveMQQueue">  
	    <constructor-arg value="pinyougou_queue_solr_delete"/>  
	</bean>    
	
	<!-- 点对点模式, 消息监听容器  删除索引库-->
	<bean class="org.springframework.jms.listener.DefaultMessageListenerContainer">
		<property name="connectionFactory" ref="connectionFactory" />
		<property name="destination" ref="queueSolrDeleteDestination" />
		<property name="messageListener" ref="itemDeleteListener" />
	</bean>
	<bean id="itemDeleteListener" class="cn.itcast.core.listener.ItemDeleteListener"></bean>
	
</beans>

消息接收方二：用于生成商品详情的静态页面

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:amq="http://activemq.apache.org/schema/core"
	xmlns:jms="http://www.springframework.org/schema/jms"
	xsi:schemaLocation="http://www.springframework.org/schema/beans   
		http://www.springframework.org/schema/beans/spring-beans.xsd
		http://www.springframework.org/schema/context   
		http://www.springframework.org/schema/context/spring-context.xsd">
	
    <!-- 真正可以产生Connection的ConnectionFactory，由对应的 JMS服务厂商提供-->  
	<bean id="targetConnectionFactory" class="org.apache.activemq.ActiveMQConnectionFactory">  
	    <property name="brokerURL" value="tcp://192.168.200.128:61616"/>  
	</bean>
	   
    <!-- Spring用于管理真正的ConnectionFactory的ConnectionFactory -->  
	<bean id="connectionFactory" class="org.springframework.jms.connection.SingleConnectionFactory">  
	<!-- 目标ConnectionFactory对应真实的可以产生JMS Connection的ConnectionFactory -->  
	    <property name="targetConnectionFactory" ref="targetConnectionFactory"/>  
	</bean>  
	
    <!--发布订阅模式, 生成页面-->  
	<bean id="topicPageAndSolrDestination" class="org.apache.activemq.command.ActiveMQTopic">  
	    <constructor-arg value="pinyougou_topic_page_solr"/>  
	</bean>    
	
	<!-- 发布订阅模式, 消息监听容器   生成页面 -->
	<bean class="org.springframework.jms.listener.DefaultMessageListenerContainer">
		<property name="connectionFactory" ref="connectionFactory" />
		<property name="destination" ref="topicPageAndSolrDestination" />
		<property name="messageListener" ref="pageListener" />
	</bean>
	<bean id="pageListener" class="cn.itcast.core.listener.PageListener"></bean>
	
</beans>

五、添加两个监听器：当有消息接收到时，执行方法

注意：监听器需要实现MessageListener接口，并需要在配置文件中进行配置

监听器一

package cn.itcast.core.listener;

import cn.itcast.core.service.SolrManagerService;
import org.apache.activemq.command.ActiveMQTextMessage;
import org.springframework.beans.factory.annotation.Autowired;

import javax.jms.Message;
import javax.jms.MessageListener;

public class ItemSearchListener implements MessageListener {

    @Autowired
    private SolrManagerService solrManagerService;

    @Override
    public void onMessage(Message message) {
        //将原生message转化为ActiveMQ的message
        ActiveMQTextMessage atm = (ActiveMQTextMessage)message;
        try {
            String goodsId = atm.getText();
            solrManagerService.importItemDataToSolr(Long.parseLong(goodsId));
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

监听器二

package cn.itcast.core.listener;

import cn.itcast.core.service.CmsService;
import org.apache.activemq.command.ActiveMQTextMessage;
import org.springframework.beans.factory.annotation.Autowired;

import javax.jms.Message;
import javax.jms.MessageListener;
import java.util.Map;

public class PageListener implements MessageListener {

    @Autowired
    private CmsService cmsService;

    @Override
    public void onMessage(Message message) {
        ActiveMQTextMessage textMessage = (ActiveMQTextMessage)message;
        try {
            String goodsId = textMessage.getText();
            Map<String, Object> goodsInfo = cmsService.getGoodsInfo(Long.parseLong(goodsId));
            cmsService.createGoodsInfoPage(Long.parseLong(goodsId),goodsInfo);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

品优购项目笔记（十）：消息中间件ActiveMQ之商品上架

品优购项目笔记（十）

商品上架（下架省略）

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