MSMQ基本用法

2018-05-29  本文已影响0人  小狼在IT

1.先在控制面板添加MSMQ组件


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2.此时可以在计算机管理里面看到消息队列的服务


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3.敲代码

一个消息类:

[Serializable]
public class MsgModel
{
    public string id { get; set; }
    public string Name { get; set; }
    public MsgModel() { }
    public MsgModel(string _id, string _Name)
    {
        id = _id;
        Name = _Name;
    }
    public override string ToString()
    {
        if (string.IsNullOrEmpty(id) || string.IsNullOrEmpty(Name)) return "";
        return string.Format("id--{0},Name--{1}", id, Name);
    }
}  

基本代码:

    /// <summary>  
    /// 创建消息队列  
    /// </summary>  
    /// <param name="name">消息队列名称</param>  
    /// <returns></returns>  
    public void CreateNewQueue(string name)
    {
        if (!System.Messaging.MessageQueue.Exists(".\\private$\\" + name))//检查是否已经存在同名的消息队列  
        {

            System.Messaging.MessageQueue mq = System.Messaging.MessageQueue.Create(".\\private$\\" + name);
            mq.Label = "private$\\" + name;
            Response.Write("创建成功!<br/>");
        }
        else
        {
            //System.Messaging.MessageQueue.Delete(".\\private$\\" + name);//删除一个消息队列  
            Response.Write("已经存在<br/>");
        }
    }  

    private void sendComplexMsg<T>(T t)
    {
        //实例化MessageQueue,并指向现有的一个名称为VideoQueue队列  
        MessageQueue MQ = new MessageQueue(@".\private$\MsgQueue");
        //MQ.Send("消息测试", "测试消息");  
        System.Messaging.Message message = new System.Messaging.Message();
        message.Label = "复杂消息lable";
        message.Body = t;
        MQ.Send(message);

        Response.Write("成功发送消息," + DateTime.Now + "<br/>");
    }

    private T receiveComplexMsg<T>()
    {
       
        MessageQueue MQ = new MessageQueue(@".\private$\MsgQueue");
        //调用MessageQueue的Receive方法接收消息  
        if (MQ.GetAllMessages().Length > 0)
        {
            System.Messaging.Message message = MQ.Receive(TimeSpan.FromSeconds(5));
            if (message != null)
            {
                message.Formatter = new System.Messaging.XmlMessageFormatter(new Type[] { typeof(T) });//消息类型转换  
                T msg = (T)message.Body;
                return msg;
            }
        }

        return default(T);
    }

执行代码:

    protected void Page_Load(object sender, EventArgs e)
    {
        CreateNewQueue("MsgQueue");//创建一个消息队列   
        sendComplexMsg<MsgModel>(new MsgModel("100", "completed"));
        MsgModel m = receiveComplexMsg<MsgModel>();
        Response.Write(m.ToString());  
    }

执行CreateNewQueue后,可以看到:


image.png

执行sendComplexMsg后,可以看到:


image.png

执行receiveComplexMsg后,消息就消失了:


image.png
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