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ActiveMqC#客户端消息队列的使用（存和取）

原作者: [db:作者] 来自: [db:来源] 收藏 邀请
VS2013Apache.NMS.ActiveMQ-1.7.2-bin.zip
apache-activemq-5.14.0-bin.zip
 

2、开始项目

VS2013新建一个C#控制台应用程序，项目中添加两个dll引用，一个是D:\Apache.NMS.ActiveMQ-1.7.2-bin\lib\Apache.NMS\net-4.0目录下的Apache.NMS.dll，另一个是D:\Apache.NMS.ActiveMQ-1.7.2-bin\build\net-4.0\debug目录下的Apache.NMS.ActiveMQ.dll。
新建一个类，MyActiveMq.cs，用于对activemq消息队列接口的封装，实现如下：
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
 
using Apache.NMS;
using Apache.NMS.ActiveMQ;
 
namespace NmsProducerClasses
{
    public class MyActiveMq
    {
        private IConnectionFactory factory;
        private IConnection connection;
        private ISession session;
        private IMessageProducer prod;
        private IMessageConsumer consumer;
        private ITextMessage msg;
 
        private bool isTopic = false;
        private bool hasSelector = false;
        private const string ClientID = "clientid";
        private const string Selector = "filter='demo'";
        private bool sendSuccess = true;
        private bool receiveSuccess = true;
 
        public MyActiveMq(bool isLocalMachine, string remoteAddress)
        {
            try
            {
                //初始化工厂  
                if (isLocalMachine)
                {
                    factory = new ConnectionFactory("tcp://localhost:61616/");
                }
                else
                {
                    factory = new ConnectionFactory("tcp://" + remoteAddress + ":61616/"); //写tcp://192.168.1.111:61616的形式连接其他服务器上的ActiveMQ服务器          
                }
                //通过工厂建立连接
                connection = factory.CreateConnection();
                connection.ClientId = ClientID;
                connection.Start();
                //通过连接创建Session会话
                session = connection.CreateSession();
            }
            catch (System.Exception e)
            {
                sendSuccess = false;
                receiveSuccess = false;
                Console.WriteLine("Exception:{0}", e.Message);
                Console.ReadLine();
                throw e;
            }
            Console.WriteLine("Begin connection...");
        }
 
 
        ~MyActiveMq()
        {
            //this.ShutDown();
        }
 
        /// <summary>
        /// 初始化
        /// </summary>
        ///<param name="topic">选择是否是Topic
        ///<param name="name">队列名
        ///<param name="selector">是否设置过滤
        public bool InitQueueOrTopic(bool topic, string name, bool selector = false)
        {
            try
            {
                //通过会话创建生产者、消费者
                if (topic)
                {
                    prod = session.CreateProducer(new Apache.NMS.ActiveMQ.Commands.ActiveMQTopic(name));
                    if (selector)
                    {
                        consumer = session.CreateDurableConsumer(new Apache.NMS.ActiveMQ.Commands.ActiveMQTopic(name), ClientID, Selector, false);
                        hasSelector = true;
                    }
                    else
                    {
                        consumer = session.CreateDurableConsumer(new Apache.NMS.ActiveMQ.Commands.ActiveMQTopic(name), ClientID, null, false);
                        hasSelector = false;
                    }
                    isTopic = true;
                }
                else
                {
                    prod = session.CreateProducer(new Apache.NMS.ActiveMQ.Commands.ActiveMQQueue(name));
                    if (selector)
                    {
                        consumer = session.CreateConsumer(new Apache.NMS.ActiveMQ.Commands.ActiveMQQueue(name), Selector);
                        hasSelector = true;
                    }
                    else
                    {
                        consumer = session.CreateConsumer(new Apache.NMS.ActiveMQ.Commands.ActiveMQQueue(name));
                        hasSelector = false;
                    }
                    isTopic = false;
                }
                //创建一个发送的消息对象
                msg = prod.CreateTextMessage();
            }
            catch (System.Exception e)
            {
                sendSuccess = false;
                receiveSuccess = false;
                Console.WriteLine("Exception:{0}", e.Message);
                Console.ReadLine();
                throw e;
            }
 
            return sendSuccess;
        }
 
 
        public bool SendMessage(string message, string msgId = "defult", MsgPriority priority = MsgPriority.Normal)
        {
            if (prod == null)
            {
                sendSuccess = false;
                Console.WriteLine("call InitQueueOrTopic() first!!");
                return false;
            }
 
            Console.WriteLine("Begin send messages...");
 
            //给这个对象赋实际的消息
            msg.NMSCorrelationID = msgId;
            msg.Properties["MyID"] = msgId;
            msg.NMSMessageId = msgId;
            msg.Text = message;
            Console.WriteLine(message);
 
            if (isTopic)
            {
                sendSuccess = ProducerSubcriber(message, priority);
            }
            else
            {
                sendSuccess = P2P(message, priority);
            }
 
            return sendSuccess;
        }
 
 
        public string GetMessage()
        {
            if (prod == null)
            {
                Console.WriteLine("call InitQueueOrTopic() first!!");
                return null;
            }
 
            Console.WriteLine("Begin receive messages...");
            ITextMessage revMessage = null;
            try
            {
                //同步阻塞10ms,没消息就直接返回null,注意此处时间不能设太短，否则还没取到消息就直接返回null了！！！
                revMessage = consumer.Receive(new TimeSpan(TimeSpan.TicksPerMillisecond *10)) as ITextMessage;
            }
            catch (System.Exception e)
            {
                receiveSuccess = false;
                Console.WriteLine("Exception:{0}", e.Message);
                Console.ReadLine();
                throw e;
            }
 
            if (revMessage == null)
            {
                Console.WriteLine("No message received!");
                return null;
            }
            else
            {
                Console.WriteLine("Received message with Correlation ID: " + revMessage.NMSCorrelationID);
                //Console.WriteLine("Received message with Properties'ID: " + revMessage.Properties["MyID"]);
                Console.WriteLine("Received message with text: " + revMessage.Text);
            }
 
            return revMessage.Text;
        }
 
        //P2P模式，一个生产者对应一个消费者
        private bool P2P(string message, MsgPriority priority)
        {
            try
            {
                if (hasSelector)
                {
                    //设置消息对象的属性，这个很重要，是Queue的过滤条件，也是P2P消息的唯一指定属性
                    msg.Properties.SetString("filter", "demo");  //P2P模式
                }
                prod.Priority = priority;
                //设置持久化
                prod.DeliveryMode = MsgDeliveryMode.Persistent;
                //生产者把消息发送出去，几个枚举参数MsgDeliveryMode是否持久化，MsgPriority消息优先级别，存活时间，当然还有其他重载
                prod.Send(msg, MsgDeliveryMode.Persistent, priority, TimeSpan.MinValue);
            }
            catch (System.Exception e)
            {
                sendSuccess = false;
                Console.WriteLine("Exception:{0}", e.Message);
                Console.ReadLine();
                throw e;
            }
 
            return sendSuccess;
        }
 
 
        //发布订阅模式，一个生产者多个消费者
        private bool ProducerSubcriber(string message, MsgPriority priority)
        {
            try
            {
                prod.Priority = priority;
                //设置持久化,如果DeliveryMode没有设置或者设置为NON_PERSISTENT，那么重启MQ之后消息就会丢失
                prod.DeliveryMode = MsgDeliveryMode.Persistent;
                prod.Send(msg, Apache.NMS.MsgDeliveryMode.Persistent, priority, TimeSpan.MinValue);
                //System.Threading.Thread.Sleep(1000); 
            }
            catch (System.Exception e)
            {
                sendSuccess = false;
                Console.WriteLine("Exception:{0}", e.Message);
                Console.ReadLine();
                throw e;
            }
 
            return sendSuccess;
        }
 
 
        public void ShutDown()
        {
            Console.WriteLine("Close connection and session...");
            session.Close();
            connection.Close();
        }
    }
}

 
Program.cs代码如下：
 
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.IO;
using System.Threading;
 
namespace NmsProducerClasses
{
    class Program
    {
        static void Main(string[] args)
        {
            MyActiveMq mymq = new MyActiveMq(isLocalMachine: true, remoteAddress: "");
 
            mymq.InitQueueOrTopic(topic: false, name: "myqueue", selector: false);
            //mymq.InitQueueOrTopic(topic: false, name: "seletorqueue", selector: true);
            //mymq.InitQueueOrTopic(topic: true, name: "noselectortopic", selector: false);
            //mymq.InitQueueOrTopic(topic: true, name: "selectortopic", selector: true);
 
            //The full range of priority values (0-9) are supported by the JDBC message store. For KahaDB three priority categories are supported, Low (< 4), Default (= 4) and High (> 4).
            User myuser0 = new User("0000", "Lowest", "img/p.jpg");

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