前面的两篇博文算是把RabbitMQ的基础了解了下，今天学习.Net 中RabbitMQ的使用。原本这篇博文是应该上周写的，可在自己使用的过程中出现了一个问题bug:就是在连接服务端时，一直报下面的错误:None of the specified endpoints were reachable.自己也上网查了好久，又问了网友，这里要感谢博客园的园有的帮助。一般使用这些技术的使用都是有一定的步骤，有固有的套路，熟悉了套路，用起来就会很方便。像ADO.Net的五大对象也是，操作数据库先进行连接connection,然后使用command过滤出要选择的数据，使用DataReader或DataSet、DataAdapter,在RabbitMQ的使用当中也有基本固定的步骤。
一、生产者
1.创建连接connection:不管是生产者还是消费者都需要先于RabbitMQ服务器连接，才能进行数据交换
2.创建通道 Channel:生产者、消费者的消息传递是在通道下传递的
3.声明交换器、队列
4.交换器与队列进行绑定
5.通过交换器BasicPublish数据到队列
二、消费者
1.创建连接 :和生产者一样
2.创建通道:和生产者一样
3.声明交换器、队列
4.交换器与队列进行绑定
5.通过BasicGet方法获取队列中的数据
上面一、二是大致的基本步骤，按照大致的步骤来基本不会出现大的问题，其实生产者和消费者的前4个步骤基本一样，主要是第5个步骤，一个是生产BasicPublish发布，一个是获取Get。
三、出现的错误
在ConnectionFactory创建连接对象时出现上面提到的bug:None of the specified endpoints were reachable.这个问了下博客园博友的，博友的回复如下:
这个显然是你的服务端网络不通或者服务没有启用、端口配置不正确导致的，建议你先检查先端口、服务是否启动成功。可以用telnet或者netstat -a等命令，排除本地服务是否有误等问题。排除服务端，再调试客户端,之前自己也有检查了，RabbitMQ也是启动的，用浏览器登录http://localhost:15672也能登录，感觉是相当的纳闷，自己重启了下RabbitMQ之后又试了一下没想到成功了，感觉到好纳闷，现在还不知道是什么原因导致的。好神奇的样子。
四、demo
1.首先在生产者端和消费者端引入RabbitMQ
2.生产者端
using RabbitMQ.Client;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks; namespace RMQProducter
{
class Program
{
/// <summary>
/// 连接配置
/// </summary>
private static readonly ConnectionFactory rabbitMqFactory = new ConnectionFactory(){
UserName = "cywadmin",
Password = "",
Port = ,
VirtualHost= "cywVirtualHost"
};
/// <summary>
/// 路由名称
/// </summary>
const string ExchangeName = "cyw.exchange"; //队列名称
const string QueueName = "cyw.queue"; /// <summary>
/// 路由名称
/// </summary>
const string TopExchangeName = "topic.cyw.exchange"; //队列名称
const string TopQueueName = "topic.cyw.queue"; static void Main(string[] args)
{
DirectExchangeSendMsg();
// TopicExchangeSendMsg();
Console.WriteLine("按任意值，退出程序");
Console.ReadKey();
}
/// <summary>
/// 单点精确路由模式
/// </summary>
public static void DirectExchangeSendMsg()
{
using (IConnection conn = rabbitMqFactory.CreateConnection())
{
using (IModel channel = conn.CreateModel())
{
channel.ExchangeDeclare(ExchangeName, "direct", durable: true, autoDelete: false, arguments: null);
channel.QueueDeclare(QueueName, durable: true, autoDelete: false, exclusive: false, arguments: null);
channel.QueueBind(QueueName, ExchangeName, routingKey: QueueName); var props = channel.CreateBasicProperties();
props.Persistent = true;
string vadata = Console.ReadLine();
while (vadata != "exit")
{
var msgBody = Encoding.UTF8.GetBytes(vadata);
channel.BasicPublish(exchange: ExchangeName, routingKey: QueueName, basicProperties: props, body: msgBody);
Console.WriteLine(string.Format("***发送时间:{0}，发送完成，输入exit退出消息发送",
DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss")));
vadata = Console.ReadLine();
}
}
}
} public static void TopicExchangeSendMsg()
{
using (IConnection conn = rabbitMqFactory.CreateConnection())
{
using (IModel channel = conn.CreateModel())
{
channel.ExchangeDeclare(TopExchangeName, "topic", durable: false, autoDelete: false, arguments: null);
channel.QueueDeclare(TopQueueName, durable: false, autoDelete: false, exclusive: false, arguments: null);
channel.QueueBind(TopQueueName, TopExchangeName, routingKey: TopQueueName);
//var props = channel.CreateBasicProperties();
//props.Persistent = true;
string vadata = Console.ReadLine();
while (vadata != "exit")
{
var msgBody = Encoding.UTF8.GetBytes(vadata);
channel.BasicPublish(exchange: TopExchangeName, routingKey: TopQueueName, basicProperties: null, body: msgBody);
Console.WriteLine(string.Format("***发送时间:{0}，发送完成，输入exit退出消息发送", DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss")));
vadata = Console.ReadLine();
}
}
}
}
}
}
上面的代码分别创建了两个路由和两个队列，一种是DirectExchange，一种是TopicExchange，验证时需要生产者和消费者使用同一种的ExChange。
3.消费者端
using RabbitMQ.Client;
using RabbitMQ.Client.Events;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks; namespace RMQCustomer
{
class Program
{
/// <summary>
/// 连接配置
/// </summary>
private static readonly ConnectionFactory rabbitMqFactory = new ConnectionFactory() {
HostName = "127.0.0.1",
UserName = "cywadmin",
Password = "",
Port = ,
VirtualHost = "cywVirtualHost"
};
/// <summary>
/// 路由名称
/// </summary>
const string ExchangeName = "cyw.exchange"; //队列名称
const string QueueName = "cyw.queue"; /// <summary>
/// 路由名称
/// </summary>
const string TopExchangeName = "topic.cyw.exchange"; //队列名称
const string TopQueueName = "topic.cyw.queue"; static void Main(string[] args)
{
DirectAcceptExchange();
//DirectAcceptExchangeEvent();
//DirectAcceptExchangeTask();
//TopicAcceptExchange();
Console.WriteLine("按任意值，退出程序");
Console.ReadKey();
} public static void DirectAcceptExchange()
{
using (IConnection conn = rabbitMqFactory.CreateConnection())
{
using (IModel channel = conn.CreateModel())
{
channel.ExchangeDeclare(ExchangeName, "direct", durable: true, autoDelete: false, arguments: null);
channel.QueueDeclare(QueueName, durable: true, autoDelete: false, exclusive: false, arguments: null);
channel.QueueBind(QueueName, ExchangeName, routingKey: QueueName);
while (true)
{
BasicGetResult msgResponse = channel.BasicGet(QueueName, noAck: true);
if (msgResponse != null)
{
var msgBody = Encoding.UTF8.GetString(msgResponse.Body);
Console.WriteLine(string.Format("***接收时间:{0}，消息内容：{1}", DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss"),msgBody));
} //BasicGetResult msgResponse2 = channel.BasicGet(QueueName, noAck: false); ////process message ... //channel.BasicAck(msgResponse2.DeliveryTag, multiple: false);
System.Threading.Thread.Sleep(TimeSpan.FromSeconds());
}
}
}
} public static void DirectAcceptExchangeEvent()
{
using (IConnection conn = rabbitMqFactory.CreateConnection())
{
using (IModel channel = conn.CreateModel())
{
//channel.ExchangeDeclare(ExchangeName, "direct", durable: true, autoDelete: false, arguments: null);
channel.QueueDeclare(QueueName, durable: true, autoDelete: false, exclusive: false, arguments: null);
//channel.QueueBind(QueueName, ExchangeName, routingKey: QueueName);
var consumer = new EventingBasicConsumer(channel);
consumer.Received += (model, ea) =>
{
var msgBody = Encoding.UTF8.GetString(ea.Body);
Console.WriteLine(string.Format("***接收时间:{0}，消息内容：{1}", DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss"), msgBody));
};
channel.BasicConsume(QueueName, noAck: true, consumer: consumer); //已过时用EventingBasicConsumer代替
//var consumer2 = new QueueingBasicConsumer(channel);
//channel.BasicConsume(QueueName, noAck: true, consumer: consumer);
//var msgResponse = consumer2.Queue.Dequeue(); //blocking
//var msgBody2 = Encoding.UTF8.GetString(msgResponse.Body); Console.WriteLine("按任意值，退出程序");
Console.ReadKey();
}
}
} public static void DirectAcceptExchangeTask()
{
using (IConnection conn = rabbitMqFactory.CreateConnection())
{
using (IModel channel = conn.CreateModel())
{
//channel.ExchangeDeclare(ExchangeName, "direct", durable: true, autoDelete: false, arguments: null);
channel.QueueDeclare(QueueName, durable: true, autoDelete: false, exclusive: false, arguments: null);
channel.BasicQos(prefetchSize: , prefetchCount: , global: false);//告诉broker同一时间只处理一个消息
//channel.QueueBind(QueueName, ExchangeName, routingKey: QueueName);
var consumer = new EventingBasicConsumer(channel);
consumer.Received += (model, ea) =>
{
var msgBody = Encoding.UTF8.GetString(ea.Body);
Console.WriteLine(string.Format("***接收时间:{0}，消息内容：{1}", DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss"), msgBody));
int dots = msgBody.Split('.').Length - ;
System.Threading.Thread.Sleep(dots * );
Console.WriteLine(" [x] Done");
//处理完成，告诉Broker可以服务端可以删除消息，分配新的消息过来
channel.BasicAck(deliveryTag: ea.DeliveryTag, multiple: false);
};
//noAck设置false,告诉broker，发送消息之后，消息暂时不要删除，等消费者处理完成再说
channel.BasicConsume(QueueName, noAck: false, consumer: consumer); Console.WriteLine("按任意值，退出程序");
Console.ReadKey();
}
}
} public static void TopicAcceptExchange()
{
using (IConnection conn = rabbitMqFactory.CreateConnection())
{
using (IModel channel = conn.CreateModel())
{
channel.ExchangeDeclare(TopExchangeName, "topic", durable: false, autoDelete: false, arguments: null);
channel.QueueDeclare(TopQueueName, durable: false, autoDelete: false, exclusive: false, arguments: null);
channel.BasicQos(prefetchSize: , prefetchCount: , global: false);
channel.QueueBind(TopQueueName, TopExchangeName, routingKey: TopQueueName);
var consumer = new EventingBasicConsumer(channel);
consumer.Received += (model, ea) =>
{
var msgBody = Encoding.UTF8.GetString(ea.Body);
Console.WriteLine(string.Format("***接收时间:{0}，消息内容：{1}", DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss"), msgBody));
int dots = msgBody.Split('.').Length - ;
System.Threading.Thread.Sleep(dots * );
Console.WriteLine(" [x] Done");
channel.BasicAck(deliveryTag: ea.DeliveryTag, multiple: false);
};
channel.BasicConsume(TopQueueName, noAck: false, consumer: consumer); Console.WriteLine("按任意值，退出程序");
Console.ReadKey();
}
}
} }
}
消费者端也是两个路由两个队列，在实现DirectExchange时使用了三种方式，DirectAcceptExchange是基于时间轮询的，每隔一段时间获取一次，DirectAcceptExchangeEvent、DirectAcceptExchangeTask是基于事件的，当消息到达时触发事件，获取数据。
4.实验截图
参考:http://www.cnblogs.com/xibei666/p/5931267.html#3680686 感谢园主，我这篇博文用的都是他的例子。