Microsoft Message Queuing或MSMQ微软公司实现的一种消息队列，始于Windows NT 4与Windows 95。Windows Server 2016与Windows 10仍然包含这种组件。1999年起，Microsoft Embedded平台以及Windows CE 3.0也开始支持这一组件。
MSMQ作为一种消息协议，允许多服务器/多进程通信，即使不总是保持互联。而sockets与其他网络协议要求直连总是成立。
MSMQ从1997年开始可用。
MSMQ是可靠分发消息。分发失败的消息保存在队列中直到目标可达时重发该消息。还支持安全与优先级的消息机制。可以创建死信队列（英语：Dead letter queue）用于调试。
MSMQ支持可持续性与不可持续性消息，使得性能与消息是否写到磁盘的一致性上可以权衡。不可持续性消息只能用于向非事务性队列发送快速消息。
MSMQ支持事务处理。允许多个动作发给多个队列中包装为单个事务。微软分布式事务协调器 (MSDTC) 支持对MSMQ或其他资源的事务访问。
MSMQ使用下述端口:
C#例子：
using System;using System.Collections.Generic;using System.Linq;using System.Messaging;using System.Text;using System.Threading.Tasks;namespace Test{ public class QueueManger { /// <summary> /// 创建MSMQ队列 /// </summary> /// <param name="queuePath">队列路径</param> /// <param name="transactional">是否事务队列</param> public static void Createqueue(string queuePath, bool transactional = false) { try { //判断队列是否存在 if (!MessageQueue.Exists(queuePath)) { MessageQueue.Create(queuePath); Console.WriteLine(queuePath + "已成功创建！"); } else { Console.WriteLine(queuePath + "已经存在！"); } } catch (MessageQueueException e) { Console.WriteLine(e.Message); } } /// <summary> /// 删除队列 /// </summary> /// <param name="queuePath"></param> public static void Deletequeue(string queuePath) { try { //判断队列是否存在 if (MessageQueue.Exists(queuePath)) { MessageQueue.Delete(@".\private$\myQueue"); Console.WriteLine(queuePath + "已删除！"); } else { Console.WriteLine(queuePath + "不存在！"); } } catch (MessageQueueException e) { Console.WriteLine(e.Message); } } /// <summary> /// 发送消息 /// </summary> /// <typeparam name="T">用户数据类型</typeparam> /// <param name="target">用户数据</param> /// <param name="queuePath">队列名称</param> /// <param name="tran"></param> /// <returns></returns> public static bool SendMessage<T>(T target, string queuePath, MessageQueueTransaction tran = null) { try { //连接到本地的队列 MessageQueue myQueue = new MessageQueue(queuePath); System.Messaging.Message myMessage = new System.Messaging.Message(); myMessage.Body = target; myMessage.Formatter = new XmlMessageFormatter(new Type { typeof(T) }); //发送消息到队列中 if (tran == null) { myQueue.Send(myMessage); } else { myQueue.Send(myMessage, tran); } Console.WriteLine("消息已成功发送到"+queuePath + "队列！"); return true; } catch (ArgumentException e) { Console.WriteLine(e.Message); return false; } } /// <summary> /// 接收消息 /// </summary> /// <typeparam name="T">用户的数据类型</typeparam> /// <param name="queuePath">消息路径</param> /// <returns>用户填充在消息当中的数据</returns> public static T ReceiveMessage<T>(string queuePath,MessageQueueTransaction tran=null) { //连接到本地队列 MessageQueue myQueue = new MessageQueue(queuePath); myQueue.Formatter = new XmlMessageFormatter(new Type { typeof(T) }); try { //从队列中接收消息 System.Messaging.Message myMessage = tran == null ? myQueue.Receive() : myQueue.Receive(tran); return (T)myMessage.Body; //获取消息的内容 } catch (MessageQueueException e) { Console.WriteLine(e.Message); } catch (InvalidCastException e) { Console.WriteLine(e.Message); } return default(T); } /// <summary> /// 采用Peek方法接收消息 /// </summary> /// <typeparam name="T">用户数据类型</typeparam> /// <param name="queuePath">队列路径</param> /// <returns>用户数据</returns> public static T ReceiveMessageByPeek<T>(string queuePath) { //连接到本地队列 MessageQueue myQueue = new MessageQueue(queuePath); myQueue.Formatter = new XmlMessageFormatter(new Type { typeof(T) }); try { //从队列中接收消息 System.Messaging.Message myMessage = myQueue.Peek(); return (T)myMessage.Body; //获取消息的内容 } catch (MessageQueueException e) { Console.WriteLine(e.Message); } catch (InvalidCastException e) { Console.WriteLine(e.Message); } return default(T); } /// <summary> /// 获取队列中的所有消息 /// </summary> /// <typeparam name="T">用户数据类型</typeparam> /// <param name="queuePath">队列路径</param> /// <returns>用户数据集合</returns> public static List<T> GetAllMessage<T>(string queuePath) { MessageQueue myQueue = new MessageQueue(queuePath); myQueue.Formatter = new XmlMessageFormatter(new Type { typeof(T) }); try { Message msgArr= myQueue.GetAllMessages(); List<T> list=new List<T>(); msgArr.ToList().ForEach((o) => { list.Add((T)o.Body); }); return list; } catch(Exception e) { Console.WriteLine(e.Message); } return null; } }}namespace Test{ public class Student { /// <summary> /// 年龄 /// </summary> public int Age { get; set; } /// <summary> /// 姓名 /// </summary> public string Name { get; set; } }}namespace Test{ class Program { static void Main(string args) { string queuepath = @".\private$\myQueue"; //QueueManger.Createqueue(queuepath); //Student stu = new Student() { Name="shaoshun",Age=18}; //QueueManger.SendMessage<Student>(stu, queuepath); //Student stu= QueueManger.ReceiveMessageByPeek<Student>(queuepath); //Student stu = QueueManger.ReceiveMessage<Student>(queuepath); //Console.WriteLine(stu.Name); QueueManger.Deletequeue(queuepath); QueueManger.Createqueue(queuepath); MessageQueueTransaction tran = new MessageQueueTransaction(); tran.Begin(); try { Student stu; for (int i = 0; i < 4; i++) { stu=new Student(){Name="shaoshun"+i,Age=i}; QueueManger.SendMessage<Student>(stu, queuepath, tran); if (i == 3) { throw new Exception(); } } tran.Commit(); } catch { tran.Abort(); } Console.ReadKey(); } }}