rabbitmq学习10：使用spring-ampq发送消息及异步接受消息

RabbitMQ学习笔记;spring-amqp

   前面我们已经学习了发送消息及同步接收消息的例子了。下面我们来看看如何通过Spring配置来实现异步接收消息。

   现在我们建立两个WEB项目。发送消息的项目命名为”rabbitmq-demo-producer“ ，异步接受的消息项目名称”rabbitmq-demo-consumer“。

  下面来看看rabbitmq-demo-producer项目中发送信息的程序及配置。

 MessageProducer类是用于发送消息的类。实现如下

package com.abin.rabbitmq;

import org.springframework.amqp.rabbit.core.RabbitTemplate;

public class MessageProducer {
    private RabbitTemplate rabbitTemplate;

    public void sendMessage(Integer i) {
        String message = "Hello World wubin " + "#" + i;
        //Exchange的名称为"hello.topic"，routingkey的名称为"hello.world.q123ueue"
        rabbitTemplate.convertAndSend("hello.topic", "hello.world.q123ueue",
                message);
        System.out.println("发送第" + i + "个消息成功！内容为：" + message);

//      String messages = "Hello World direct " + "#" + i;
//      rabbitTemplate.convertAndSend("hello.direct", "hello.world.queue",
//              messages);
//      System.out.println("发送第" + i + "个消息成功！内容为：" + messages);
    }

    public void setRabbitTemplate(RabbitTemplate rabbitTemplate) {
        this.rabbitTemplate = rabbitTemplate;
    }

}

 

spring的配置文件如下：applicationContext-rabbitmq.xml

"1.0" encoding="UTF-8"?>
"http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">
    "connectionFactory"
        class="org.springframework.amqp.rabbit.connection.SingleConnectionFactory">
        "localhost" />
        "username" value="guest" />
        "password" value="guest" />

    "amqpAdmin"
        class="org.springframework.amqp.rabbit.core.RabbitAdmin">
        "connectionFactory" />

    "rabbitTemplate"
        class="org.springframework.amqp.rabbit.core.RabbitTemplate">
        "connectionFactory">

    "messageProducer"
        class="com.abin.rabbitmq.MessageProducer">
        "rabbitTemplate">
            "rabbitTemplate" />

 

对于发送消息的程序自己可以实现，我是通过Struts2来实现的，例如

package com.abin.action;

import java.util.Date;

import com.abin.rabbitmq.MessageProducer;
import com.opensymphony.xwork2.ActionSupport;

public class SendAction extends ActionSupport {
    private MessageProducer messageProducer;

    public String execute() throws Exception {
        Date a = new Date();
        long b = System.currentTimeMillis();
        for (int i = 0; i <= 10000; i++) {
            messageProducer.sendMessage(i);
        }
        System.out.println(a);
        System.out.println(new Date());
        System.out.println("共花了" + (System.currentTimeMillis() - b) + "ms");
        return null;
    }

    public void setMessageProducer(MessageProducer messageProducer) {
        this.messageProducer = messageProducer;
    }

}

 

发送消息项目的程序差不多就这些了

下面来看看接受消息的程序如下

HelloWorldHandler类用于接收消息的处理类，如下

 

package com.abin.rabbitmq;

import java.util.Date;

public class HelloWorldHandler {
    public void handleMessage(String text) {
        System.out.println("Received: " + text);

        System.out.println(new Date());
    }
}

 

spring的配置文件如下：applicationContext-rabbitmq.xml

 

 

"1.0" encoding="UTF-8"?>
"http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">

    "connectionFactory"
        class="org.springframework.amqp.rabbit.connection.SingleConnectionFactory">
        "localhost" />
        "username" value="guest" />
        "password" value="guest" />


    "rabbitAdmin"
        class="org.springframework.amqp.rabbit.core.RabbitAdmin">
        "connectionFactory" />


    "rabbitTemplate"
        class="org.springframework.amqp.rabbit.core.RabbitTemplate">
        "connectionFactory">


    "helloWorldQueue"
        class="org.springframework.amqp.core.Queue">
        "hello.world.queue">


    "messageConverter"
        class="org.springframework.amqp.support.converter.SimpleMessageConverter">


    "hellotopic"
        class="org.springframework.amqp.core.TopicExchange">
        "hello.topic">



    "hellodirect"
        class="org.springframework.amqp.core.DirectExchange">
        "hello.direct">



    "queuebling"
        class="org.springframework.amqp.core.Binding">
        "0" ref="helloWorldQueue">
        "1" ref="hellotopic">
        "2" value="hello.world.#">



    "helloWorldHandler"
        class="com.abin.rabbitmq.HelloWorldHandler">


    "helloListenerAdapter"
        class="org.springframework.amqp.rabbit.listener.adapter.MessageListenerAdapter">
        "helloWorldHandler" />
        "defaultListenerMethod" value="handleMessage">
        "messageConverter" ref="messageConverter">


    "listenerContainer"
        class="org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer">
        "queueName" value="hello.world.queue">
        "connectionFactory" ref="connectionFactory">
        "messageListener" ref="helloListenerAdapter">