实现消息队列的两种方式
apache activemq官方实例发送消息
直接在apache官网http://activemq.apache.org/download-archives.html下载ActiveMQ源码
下载解压后拿到java代码实例
然后倒入ide
如下:
请认真阅读readme.md文件,大致意思就是把项目打成两个jar包,然后启动服务,然后同时运行打的两个jar包,然后就能看到具体的调用信息。打jar包时直接利用maven打就行了,不用修改代码。
启动服务:
利用spring消息模板发送消息
spirng对apache activemq提供了很好的支持
生成者代码:
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package com.jms.service.impl;
import com.jms.service.producerservice;
import org.springframework.jms.core.jmstemplate;
import org.springframework.stereotype.service;
import javax.annotation.resource;
import javax.jms.destination;
/**
* 发送消息
*/
@service
public class producerserviceimpl implements producerservice {
@resource
private jmstemplate jmstemplate;
public void sendmessage(destination destination, string msg) {
system.out.println( "向队列" +destination+ "发送消息" );
jmstemplate.convertandsend(destination,msg);
}
public void sendmessage(string msg) {
system.out.println( "向队列" +jmstemplate.getdefaultdestination().tostring()+ "发送消息" );
jmstemplate.convertandsend(msg);
}
}
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消费者代码:
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package com.jms.service.impl;
import com.jms.service.customerservice;
import org.springframework.jms.core.jmstemplate;
import org.springframework.stereotype.service;
import javax.annotation.resource;
import javax.jms.destination;
import javax.jms.jmsexception;
import javax.jms.textmessage;
@service
public class customerserviceimpl implements customerservice {
@resource
private jmstemplate jmstemplate;
/**
* 接收消息
* @param destination
*/
public void receive(destination destination) {
textmessage textmessage = (textmessage) jmstemplate.receive(destination);
try {
system.out.println( "从队列》" +destination.tostring()+ "成功获取消息》" +textmessage.gettext());
} catch (jmsexception e) {
e.printstacktrace();
}
}
}
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spring配置代码
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<?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:context= "http://www.springframework.org/schema/context"
xmlns:mvc= "http://www.springframework.org/schema/mvc"
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
http: //www.springframework.org/schema/mvc
http: //www.springframework.org/schema/mvc/spring-mvc.xsd
">
<!-- 启动包扫描功能,以便注册带有 @controller 、 @service 、 @repository 、 @component 等注解的类成为spring的bean -->
<context:component-scan base- package = "com.jms.service" > </context:component-scan>
<!-- 配置根视图 -->
<!--<mvc:view-controller path= "/" view-name= "index" />-->
<!--启用注解-->
<mvc:annotation-driven />
<!-- 视图层配置 -->
<!--<bean class = "org.springframework.web.servlet.view.internalresourceviewresolver" >-->
<!--<property name= "prefix" value= "/web-inf/view/" />-->
<!--<property name= "suffix" value= ".jsp" />-->
<!--</bean>-->
<!-- 配置jms连接工厂 -->
<bean id= "connectionfactory" class = "org.apache.activemq.activemqconnectionfactory" >
<property name= "brokerurl" value= "tcp://localhost:61616" />
</bean>
<!-- 定义消息队列(queue) -->
<bean id= "queuedestination" class = "org.apache.activemq.command.activemqqueue" >
<!-- 设置消息队列的名字 -->
<constructor-arg>
<value>queue1</value>
</constructor-arg>
</bean>
<!-- 配置jms模板(queue),spring提供的jms工具类,它发送、接收消息。 -->
<bean id= "jmstemplate" class = "org.springframework.jms.core.jmstemplate" >
<property name= "connectionfactory" ref= "connectionfactory" />
<property name= "defaultdestination" ref= "queuedestination" />
<property name= "receivetimeout" value= "10000" />
</bean>
</beans>
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测试代码
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package com.jsm.test;
import com.jms.service.customerservice;
import com.jms.service.producerservice;
import org.junit.test;
import org.springframework.context.support.classpathxmlapplicationcontext;
import javax.jms.destination;
/**
* 消息队列测试类
*/
public class jmstest {
@test
public void producertest(){
classpathxmlapplicationcontext springcontext = new classpathxmlapplicationcontext( new string[]{ "classpath:spring-core.xml" });
producerservice producerservice = (producerservice)springcontext.getbean( "producerserviceimpl" );
customerservice customerservice = (customerservice)springcontext.getbean( "customerserviceimpl" );
destination destination = (destination)springcontext.getbean( "queuedestination" );
producerservice.sendmessage( "测试消息队列" );
customerservice.receive(destination);
}
}
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测试结果
代码地址
https://github.com/wahnn/springjms
https://gitee.com/wahnn/springjms
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持服务器之家。
原文链接:https://blog.csdn.net/fenfenguai/article/details/79257928