Introduction to SignalR Self Host multi-terminal message push service (2)

This article mainly introduces the second article of multi-terminal message push services such as SignalR Self Host+MVC in detail. It has certain reference value. Interested friends can refer to it

1. Overview

In the last article, we simply implemented the SignalR self-hosted server. Today we will implement the console program to call the SignalR server to push information. Since we were previously We plan to push approval messages, so our demo direction is to send messages to designated people. As for chat messages and global broadcasts, we will not demonstrate them here.

2. Create a console client

1. Create a new console named Clinet under the SignalRProject solution

2. Enter the following command in the package management console

Install-Package Microsoft.AspNet.SignalR.Client

3. Modify the Program in the Clinet project. cs code

using Microsoft.AspNet.SignalR.Client;
using System;

namespace Clinet
{
  class Program
  {
    static void Main(string[] args)
    {
      Console.Write("请输入用户名: ");
      string clientName = Console.ReadLine();


      var url = "http://localhost:10086/";
      var connection = new HubConnection(url);
      var chatHub = connection.CreateHubProxy("IMHub");
      
      connection.Start().ContinueWith(t =>
      {
        if (!t.IsFaulted)
        {
          //连接成功，调用Register方法
          chatHub.Invoke("Register", clientName);
        }
      });

      //客户端接收实现，可以用js，也可以用后端接收
      var broadcastHandler = chatHub.On<string, string>("receivePrivateMessage", (name, message) =>
      {
        Console.WriteLine("[{0}]{1}: {2}", DateTime.Now.ToString("HH:mm:ss"), name, message);
      });

      Console.WriteLine("请输入接收者名:");
      var _name = Console.ReadLine();
      Console.WriteLine("请输入发送信息!");
      while (true)
      {
        var _message = Console.ReadLine();
        chatHub.Invoke("SendPrivateMessage", _name, _message).ContinueWith(t =>
        {
          if (t.IsFaulted)
          {
            Console.WriteLine("连接失败!");
          }
        });
        Console.WriteLine("请输入接收者名:");
        _name = Console.ReadLine();
        Console.WriteLine("请输入发送信息!");
      }
    }
  }
}

4. Right-click the solution——>SelectProperties——> Startup project——>Multiple startup projects——>Set Clinet and Server to startup, as follows:

##5. After F5 is run, Open another Clinet and enter the user name a in the first Client. After logging in, the ID of login a will be displayed on the Server. Enter the user name b in another Clinet. After logging in, the ID of login b will be displayed on the Server. Then according to the prompt information, enter b as the person receiving the information in a Clinet. After entering hello and pressing Enter, b Client displays the information entered by a, as shown below:

Since then, the console calls the SignalR server to implement the demo of message push. I will write this for today. In the next chapter, we will implement the B/S end to call the SignalR service to push messages

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