1. 程式人生 > >ssm+rabbit 簡單搭建,消費者+生產者

ssm+rabbit 簡單搭建,消費者+生產者

名詞理解 Broker:簡單來說就是訊息佇列伺服器實體。   

Exchange:訊息交換機,它指定訊息按什麼規則,路由到哪個佇列。  

Queue:訊息佇列載體,每個訊息都會被投入到一個或多個佇列。   

Binding:繫結,它的作用就是把exchange和queue按照路由規則繫結起 來。  

Routing Key:路由關鍵字,exchange根據這個關鍵字進行訊息投遞。   

vhost:虛擬主機,一個broker裡可以開設多個vhost,用作不同使用者的權 限分離。  

producer:訊息生產者,就是投遞訊息的程式。  

consumer:訊息消費者,就是接受訊息的程式。

訊息佇列的使用過程大概如下:   

(1)客戶端連線到訊息佇列伺服器,開啟一個channel。   

(2)客戶端宣告一個exchange,並設定相關屬性。   

(3)客戶端宣告一個queue,並設定相關屬性。   

(4)客戶端使用routing key,在exchange和queue之間建立好繫結關 系。   

(5)客戶端投遞訊息到exchange

融入專案:先搭建普通的ssm框架

          1.更改web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" version="2.5">
<!-- spring 監聽 -->
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>
    		classpath:spring-base.xml,
    		classpath:spring-producer.xml,
    		classpath:spring-common.xml
    </param-value>
  </context-param>

<!-- 
  	<servlet>  
    	<servlet-name>CXFServlet</servlet-name>  
    	<servlet-class>org.apache.cxf.transport.servlet.CXFServlet</servlet-class>  
    	<load-on-startup>1</load-on-startup>  
    </servlet>  
    <servlet-mapping>  
        <servlet-name>CXFServlet</servlet-name>  
        <url-pattern>/cxf/*</url-pattern>  
    </servlet-mapping>
 -->


  <servlet>
    <servlet-name>springMVC</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:spring-mvc.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>springMVC</servlet-name>
    <url-pattern>*.do</url-pattern>
  </servlet-mapping>
  <filter>
    <filter-name>encodingFilter</filter-name>
    <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
    <init-param>
      <param-name>encoding</param-name>
      <param-value>UTF-8</param-value>
    </init-param>
    <init-param>
      <param-name>forceEncoding</param-name>
      <param-value>true</param-value>
    </init-param>
  </filter>
  <filter-mapping>
    <filter-name>encodingFilter</filter-name>
    <url-pattern>*.do</url-pattern>
  </filter-mapping>

  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
</web-app>

2.jar包座標

	<dependency>
      <groupId>com.rabbitmq</groupId>
      <artifactId>amqp-client</artifactId>
      <version>4.0.0</version>
    </dependency>
 
    <dependency>
      <groupId>org.springframework.amqp</groupId>
      <artifactId>spring-rabbit</artifactId>
      <version>1.7.2.RELEASE</version>
    </dependency>

3. 建立生產者配置檔案:spring-producer.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:rabbit="http://www.springframework.org/schema/rabbit"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
    http://www.springframework.org/schema/beans/spring-beans.xsd
    http://www.springframework.org/schema/rabbit
    http://www.springframework.org/schema/rabbit/spring-rabbit-1.4.xsd">
 
    
    <bean id="jsonMessageConverter" class="org.springframework.amqp.support.converter.Jackson2JsonMessageConverter" />
 
    <!-- 建立連線工廠  轉入  ip 密碼埠等 -->
    <rabbit:connection-factory id="mqconnectionFactory" host="127.0.0.1" port="5672"
            username="admin" password="admin"/>
 
 	<!-- 預設使用這個工廠 -->
    <rabbit:admin id="connectAdmin" connection-factory="mqconnectionFactory" />
 
    <!-- 給模板指定轉換器 --><!-- mandatory必須設定true,return callback才生效 -->
    <rabbit:template id="amqpTemplate"   connection-factory="mqconnectionFactory"
        exchange="exchangeTest"
        />
 
    <!-- 建立一個佇列 -->
    <!-- 
durable 是否持久化 
exclusive 僅建立者可以使用的私有佇列,斷開後自動刪除 
auto-delete 當所有消費端連線斷開後,是否自動刪除佇列 -->
<rabbit:queue id="buyCar" name="buyCar" durable="true" auto-delete="false"
exclusive="false" declared-by="connectAdmin" />



<rabbit:queue id="buyHouse" name="buyHouse" durable="true" auto-delete="false"
exclusive="false" declared-by="connectAdmin" />

<!-- 
交換機:一個交換機可以繫結多個佇列,一個佇列也可以繫結到多個交換機上。
如果沒有佇列繫結到交換機上,則傳送到該交換機上的資訊則會丟失。

direct模式:訊息與一個特定的路由器完全匹配,才會轉發
topic模式:按規則轉發訊息,最靈活
-->
<rabbit:direct-exchange name="exchangeTest"
durable="true" auto-delete="false" declared-by="connectAdmin">

<!-- bind:繫結 -->
<rabbit:bindings>
	<rabbit:binding queue="buyCar" key="buyCarKey"></rabbit:binding>
	<rabbit:binding queue="buyHouse" key="buyHouseKey"></rabbit:binding>
</rabbit:bindings>
</rabbit:direct-exchange>


  
 </beans>

4.在controller層寫程式碼(發訊息的程式碼 )

package com.mr.controller;

import org.springframework.amqp.core.AmqpTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
public class TestController {

	// 注入amqpTemplate 模板類
	@Autowired
	private AmqpTemplate amqpTemplate;

	@RequestMapping("/test/toTest")
	public void toTest(Object msg) {
		// 指定key 和要傳從引數,
		amqpTemplate.convertAndSend("buyCarKey", "id=3");
		amqpTemplate.convertAndSend("buyHouseKey", "id=4");
		System.err.println("進入test方法");
	}
}

5.消費者(繼續建立一個相同的maven專案,搭建好ssm框架)jar包同上

     更改 web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" version="2.5">
<!-- spring 監聽 -->
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>
    		classpath:spring-base.xml,
    		classpath:spring-consumer.xml,
    		classpath:spring-common.xml
    </param-value>
  </context-param>
 
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
</web-app>

6.消費者pom.xml配置檔案,父節點版本號有改動,spring版本號不能低於4.0,否則少一個工具包,其他無所謂,我這裡使用的是4.2.3

<!-- 父節點 引入jar包    子節點  使用 -->
  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <!-- spring版本號 -->  
        <spring.version>4.2.3.RELEASE</spring.version>  
        <!-- mybatis版本號 -->  
        <mybatis.version>3.2.6</mybatis.version>  
        <!-- log4j日誌檔案管理包版本 -->  
        <slf4j.version>1.7.7</slf4j.version>  
        <log4j.version>1.2.17</log4j.version>  
    </properties>

7.建立消費者配置檔案:spring-consumer.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop"
	xmlns:tx="http://www.springframework.org/schema/tx" xmlns:mvc="http://www.springframework.org/schema/mvc"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:rabbit="http://www.springframework.org/schema/rabbit"
	xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd 
http://www.springframework.org/schema/rabbit 
http://www.springframework.org/schema/rabbit/spring-rabbit-1.4.xsd">

	<!--配置connection-factory,指定連線rabbit server引數 -->
	<rabbit:connection-factory id="connectionFactory"
		username="admin" password="admin" host="127.0.0.1" port="5672" />

	<!-- 訊息接收者 -->
	<bean id="buyCarListener" class="com.mr.jms.BuyCarListener"></bean>
	<bean id="buyHouseListener" class="com.mr.jms.BuyHouseListener"></bean>

	<!-- 宣告佇列 -->
	<rabbit:queue id="buyCar" name="buyCar" durable="true"
		auto-delete="false" exclusive="false" />
	<rabbit:queue id="buyHouse" name="buyHouse" durable="true"
		auto-delete="false" exclusive="false" />

	<!-- queue litener 觀察 監聽模式 當有訊息到達時會通知監聽在對應的佇列上的監聽物件 -->
	<rabbit:listener-container
		connection-factory="connectionFactory">
		<rabbit:listener queues="buyCar" ref="buyCarListener" />
		<rabbit:listener queues="buyHouse" ref="buyHouseListener" />
	</rabbit:listener-container>


</beans>

8.監聽執行類包結構

9.BuyCarListener.java

package com.mr.jms;

import org.springframework.amqp.core.Message;
import org.springframework.amqp.core.MessageListener;
import org.springframework.beans.factory.annotation.Autowired;

import com.mr.service.TestService;
/**
 * 這是監聽類,當有訊息事,執行這個方法
 * @author Administrator
 *
 */
public class BuyCarListener  implements MessageListener{

	@Autowired
	private TestService testService;
	@Override
	public void onMessage(Message message) {
//		message.getBody() 獲得引數
		// TODO Auto-generated method stub
		System.err.println("接受到訊息,在處理。。。。。"+testService);
	}

}

10.BuyHouseListener.java

package com.mr.jms;

import org.springframework.amqp.core.Message;
import org.springframework.amqp.core.MessageListener;
/**
 * 這是監聽類,當有訊息事,執行這個方法
 * @author Administrator
 *
 */
public class BuyHouseListener  implements MessageListener{

	@Override
	public void onMessage(Message message) {
		// TODO Auto-generated method stub
		System.err.println("接受到買房訊息,在處理。。。。。");
	}

}

11.TestService.java

package com.mr.service;

import org.springframework.stereotype.Service;

@Service
public class TestService {

}