发布消息:(生产者)
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/// <summary>
/// 发送消息
/// </summary>
/// <param name="queue">队列名</param>
/// <param name="message">消息内容</param>
private static void PublishInfo( string queue, string message)
{
try
{
var factory = new ConnectionFactory();
factory.HostName = "localhost" ; //RabbitMQ服务在本地运行
factory.UserName = "guest" ; //用户名
factory.Password = "guest" ; //密码
using (var connection = factory.CreateConnection())
{
using (var channel = connection.CreateModel())
{
bool durable = true ; //将消息标记为持久性
channel.QueueDeclare(queue, durable, false , false , null );
IBasicProperties properties = channel.CreateBasicProperties();
properties.DeliveryMode = 2;
var body = Encoding.UTF8.GetBytes(message);
channel.BasicPublish( "" , queue, properties, body); //开始传递
}
}
}
catch (System.Exception ex)
{
Console.WriteLine(ex.ToString());
}
Console.ReadLine();
}
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使用:
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PublishInfo( "test" , "222222222222" );
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点击test进入队列内部:
消费消息:
方法一:旧版可用
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private static void ConsumeInfo( string queue)
{
try
{
var factory = new ConnectionFactory();
factory.HostName = "localhost" ; //RabbitMQ服务在本地运行
factory.UserName = "guest" ; //用户名
factory.Password = "guest" ; //密码
using (var connection = factory.CreateConnection())
{
using (var channel = connection.CreateModel())
{
//bool durable = true;//将消息标记为持久性
//channel.QueueDeclare("sljcgx:finish-queue", durable, false, false, null);//声明队列,队列不存在则创建该队列
//设置prefetchCount : 1来告知RabbitMQ,在未收到消费端的消息确认时,不再分发消息,也就确保了当消费端处于忙碌状态时,不再分配任务。
channel.BasicQos(prefetchSize: 0, prefetchCount: 1, global: false );
var consumer = new QueueingBasicConsumer(channel);
//false为手动确认,获取消息后需要添加 channel.BasicAck(ea.DeliveryTag, false)确认
//true则为自动确认,不需要这行代码
channel.BasicConsume(queue, false , consumer);
while ( true )
{
try
{
var ea = (BasicDeliverEventArgs)consumer.Queue.Dequeue(); //阻塞函数,获取队列中的消息
var bodyReceive = ea.Body;
string message = Encoding.UTF8.GetString(bodyReceive);
Console.WriteLine(message);
channel.BasicAck(ea.DeliveryTag, false ); // 消息确认信号,确认后该消息将从队列里移除
}
catch (System.Exception ex)
{
Console.WriteLine(ex.Message);
}
}
}
}
}
catch (System.Exception ex)
{
Console.WriteLine(ex.ToString());
}
Console.ReadLine();
}
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方法二:(通用)
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private static void ConsumeInfo2( string queue)
{
try
{
var factory = new ConnectionFactory();
factory.HostName = "localhost" ; //RabbitMQ服务在本地运行
factory.UserName = "guest" ; //用户名
factory.Password = "guest" ; //密码
var connection = factory.CreateConnection();
var channel = connection.CreateModel();
channel.QueueDeclare(queue, true , false , false , null ); //声明队列,队列不存在则创建该队列
channel.BasicQos(0, 1, false ); //公平分发、同一时间只处理一个消息。
var consumer = new EventingBasicConsumer(channel); //消费者(指定消息通道)该事件在接收到消息时触发
consumer.Received += (sender, e) =>
{
byte [] body = e.Body.ToArray(); //消息字节数组
string message = Encoding.UTF8.GetString(body); //消息内容
Console.WriteLine(message);
channel.BasicAck(e.DeliveryTag, false ); //手工确认
};
channel.BasicConsume(queue, false , consumer); //消费消息(在当前通道中监听 queue 队列,并进行消费)
Console.ReadLine();
connection.Close();
channel.Close();
}
catch (System.Exception ex)
{
Console.WriteLine(ex.ToString());
}
}
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原文链接:https://blog.csdn.net/fangyu723/article/details/107908066