标签:style class blog code java http
首先在windows系统中安装MSMQ
一、MSMQ交互
开发基于消息的应用程序从队列开始。MSMQ包含四种队列类型:
System.Messaging命名空间执行MSMQ的编程操作。这个命名空间有两个主要的对象:
二、消息队列类型
消息对列分为3类:
公共队列
MachineName\QueueName
能被别的机器所访问,如果你的多个项目中用到消息队列,那么你可以把队列定义为公共队列
专用队列
MachineName\Private$\QueueName
只针对于本机的程序才可以调用的队列,有些情况下为了安全起见定义为私有队列。
日志队列
MachineName\QueueName\Journal$
然后编写以下代码:
消息的发送:
class Program { static void Main(string[] args) { Message msg = null; MessageQueue mq = null; int count = 0; if (MessageQueue.Exists(@".\Private$\TechRepublic")) { MessageQueue.Delete(@".\Private$\TechRepublic"); } while (true) { count++; try { msg = new Message(); msg.Priority = MessagePriority.Normal; if (!MessageQueue.Exists(@".\Private$\TechRepublic")) { mq = MessageQueue.Create(@".\Private$\TechRepublic"); } else { mq = new MessageQueue(@".\Private$\TechRepublic"); } msg.Label = "Test Message" + count; Product p = new Product { Id = count, Name = "name"+count, CreateTime = DateTime.Now }; msg.Body = p; mq.Send(msg); Console.WriteLine(p.Id); } catch (System.Messaging.MessageQueueException ex) { Console.WriteLine("MSMQ Error: " + ex.ToString()); } catch (Exception ex) { Console.WriteLine("Error: " + ex.ToString()); } } #region 发送简单的类型 //try //{ // mq = new MessageQueue(@".\Private$\TechRepublic"); // msg = mq.Receive(new TimeSpan(0, 0, 60)); // msg.Formatter = new XmlMessageFormatter(new String[] { "System.String,mscorlib" }); // //mq.Receive(); // Console.WriteLine(msg.Label.ToString() + " -- " + msg.Body.ToString()); //} //catch (System.Messaging.MessageQueueException ex) //{ // Console.WriteLine("MSMQ Error: " + ex.ToString()); //} //catch (Exception ex) //{ // Console.WriteLine("Error: " + ex.ToString()); //} //finally //{ // mq.Close(); //} #endregion Console.ReadKey(); } }
消息的接收:
class Program { static void Main(string[] args) { Message msg = null; MessageQueue mq = null; while (true) { Thread.Sleep(400); try { if (MessageQueue.Exists(@".\Private$\TechRepublic")) { mq = new MessageQueue(@".\Private$\TechRepublic"); //#region 同步接收消息 //if (mq.GetAllMessages().Any()) //{ //msg = mq.Receive(new TimeSpan(0, 0, 60)); ////通过Receive方法接收消息同时永久性地从队列中删除消息; ////通过Peek方法从队列中取出消息而不从队列中移除该消息。 //msg.Formatter = new XmlMessageFormatter(new String[] { "MyLib.Product,MyLib" }); //Product p = ((Product)msg.Body); //Console.WriteLine(msg.Label.ToString() + " -- " + p.Id + " ---" + p.CreateTime); //} //#endregion #region 异步接收消息 //利用委托机制: if (mq.GetAllMessages().Any()) { mq.BeginReceive(); mq.ReceiveCompleted += mq_ReceiveCompleted; } #endregion } } catch (System.Messaging.MessageQueueException ex) { Console.WriteLine("MSMQ Error: " + ex.ToString()); } catch (Exception ex) { Console.WriteLine("Error: " + ex.ToString()); } } Console.ReadKey(); } static void mq_ReceiveCompleted(object sender, ReceiveCompletedEventArgs e) { MessageQueue mq = (MessageQueue)sender; Message msg = mq.EndReceive(e.AsyncResult); msg.Formatter = new XmlMessageFormatter(new String[] { "MyLib.Product,MyLib" }); Product p = ((Product)msg.Body); Console.WriteLine(msg.Label.ToString() + " -- " + p.Id + " ---" + p.CreateTime); mq.BeginReceive();//如果希望继续异步接收消息,请在 ReceiveCompleted 事件处理程序中再次调用 BeginReceive 方法 } }
namespace MyLib { [Serializable] public class Product { public long Id { get; set; } public string Name { get; set; } public DateTime CreateTime { get; set; } public DateTime? UpdateTime { get; set; } } }
标签:style class blog code java http
原文地址:http://www.cnblogs.com/yxlblogs/p/3783767.html