MSMQ 在 WCF 中的应用 一

什么是MSMQ？

字面意思是微软消息队列，我的理解是这样的，MS的操作系统是基于消息发送的系统，消息队列是指不是即时处理的，可以延后处理的一种消息。

WIN7 先安装 MSMQ，先来一句

System.Messaging.MessageQueue.Create(@".\private$\mymsmq", false);

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Messaging;

namespace MSMQExample
{
    public partial class Form1 : Form
    {

        public const string queenpath = @".\private$\mymsmq";  //公有队列需要在域环境下建立，而域是需要Server版系统才能建立，WIN7也是客户端OS，SERVER2008才支持WIN7
        public static System.Messaging.MessageQueue queen = System.Messaging.MessageQueue.Exists(queenpath) ? new MessageQueue(queenpath) : System.Messaging.MessageQueue.Create(queenpath);  //私有队列

        public Form1()
        {
            InitializeComponent();

        }

        private void button1_Click(object sender, EventArgs e)
        {
            //System.Messaging.MessageQueue.Create(@"mymachine\publicmsmq");  //不支持？如何创建共有队列
            queen.Send(richTextBox1.Text + DateTime.Now.ToShortDateString());  //send 里是个object对象，能放哪些东西呢？
            queen.Send("数据库执行带参数的语句");
        }
        private static void queen_ReceiveCompleted(object sender, ReceiveCompletedEventArgs e)
        {
            MessageQueue q = sender as MessageQueue;
            System.Messaging.Message message = q.EndReceive(e.AsyncResult);
            q.BeginReceive();

            MessageBox.Show("接受完成!");
        }
        private void button2_Click(object sender, EventArgs e)
        {
            System.Messaging.Message [] message = queen.GetAllMessages();
            foreach (System.Messaging.Message m in message)
            {
                richTextBox2.Text += m.Body.ToString();
            }
            //richTextBox2.Text = queen.Receive().Body.ToString();
            //当接受MSMQ消息时可以执行数据库的增删改查
        }

        private void button3_Click(object sender, EventArgs e)
        {
            queen.ReceiveCompleted += new ReceiveCompletedEventHandler(queen_ReceiveCompleted);
            queen.BeginReceive();
        }
    }
}