java实现消息队列的两种方式(小结)
本文主要介绍了两种java实现消息队列的方式,利用Spring消息模板发送消息和Apache ActiveMQ官方实例发送消息,对大家的学习或者工作具有一定的参考学习价值,需要的朋友们下面随着小编来一起学习学习吧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:
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);
}
}
消费者代码:
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();
}
}
}
spring配置代码
<?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>
测试代码
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);
}
}
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CodeAE代码之家。
原文链接:https://blog.csdn.net/fenfenguai/article/details/79257928
http://www.zzvips.com/article/172088.html
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