訊息佇列操作

訊息佇列主要是用來處理兩台電腦或者兩個應用程式之間的訊息傳遞。

Receive接受完之後，就刪除該Message。Peek接受完不刪除該Message。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Messaging;
using System.Net;
using System.IO;
using System.Diagnostics;

namespace Egensource.MessageQueue.SMS
{
    public class SMS
    {
        private const string smsUrl = System.Configuration.ConfigurationSettings.AppSettings["SMSUrl"].ToString();
        /// <summary>
        /// 發送訊息佇列,用來傳送簡訊
        /// </summary>
        /// <param name="mqName">訊息佇列名稱</param>
        /// <param name="smsinfo">簡訊資訊對象</param>
        public void SendMessage(string mqName, SMSInfo smsinfo)
        {
            MessageQueue mq;
            if (MessageQueue.Exists(@".\private$\" + mqName))
            {
                mq = new MessageQueue(@".\private$\" + mqName);
            }
            else
            {
                mq = MessageQueue.Create(@".\private$\" + mqName, true);
            }
            if (mq.Transactional)
            {
                MessageQueueTransaction myTransaction = new MessageQueueTransaction();
                try
                {
                    myTransaction.Begin();
                    mq.Send(string.Format(smsUrl, smsinfo.Mobile, smsinfo.Body, myTransaction));
                    myTransaction.Commit();
                }
                catch (Exception ex)
                {
                    myTransaction.Abort();
                    WriteLog(ex.ToString());
                }

            }
        }

        /// <summary>
        /// 傳送簡訊
        /// </summary>
        /// <param name="mqName"></param>
        public void SendSMS(string mqName)
        {
            MessageQueue mq;
            string strResult = string.Empty;
            if (MessageQueue.Exists(@".\private$\" + mqName))
            {
                mq = new MessageQueue(@".\private$\" + mqName);
                if (mq.Transactional)
                {
                    Message[] messages = mq.GetAllMessages();
                    foreach (Message message1 in messages)
                    {
                        MessageQueueTransaction myTransaction = new MessageQueueTransaction();
                        try
                        {
                            myTransaction.Begin();
                            System.Messaging.Message message = mq.Receive(myTransaction);
                            message.Formatter = new XmlMessageFormatter(new Type[] { typeof(string) });                           
                            myTransaction.Commit();
                        }
                        catch (Exception ex)
                        {
                            myTransaction.Abort();
                            WriteLog("發送失敗。傳回值:" + ex.ToString() + "。");
                        }
                    }
                }
            }
        }      

        #region Write System Log
        public static void WriteLog(string ex)
        {
            if (!EventLog.SourceExists("MessageQueue"))
            {
                EventLog.CreateEventSource("MessageQueue", "MessageQueueLog");
            }
            EventLog.WriteEntry("MessageQueue", ex.ToString(), EventLogEntryType.Error);

        }
        #endregion
    }
}

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