با سلام
در mvc core 5
من یک کلاس دارم به صورت زیر
using ChatService.Class;using ChatService.Class.Dapperr;
using ChatService.Models;
using Microsoft.AspNetCore.SignalR;
using System;
using System.Threading.Tasks;
namespace ChatService
{
public class ChatHub : Hub
{
private readonly IBLL _BLL;
private readonly IDapper _dapper;
public ChatHub(IBLL bll, IDapper dapper)
{
this._BLL = bll;
this._dapper = dapper;
}
public async Task GetListChat(string idMember)
{
var result = _BLL.GetListChatAsync(idMember);
await Clients.All.SendAsync("Recive_GetListChat", result);
}
public async Task SendMessage(string name, string text)
{
var message = new ChatMessage
{
SenderName = name,
Text = text,
SendAt = DateTimeOffset.Now
};
await Clients.All.SendAsync("ReciveMessage", message.SenderName, message.SendAt, message.Text);
}
public async Task Start()
{
await Clients.All.SendAsync("onStart");
}
public async Task End()
{
await Clients.All.SendAsync("onEnd");
}
public override async Task OnConnectedAsync()
{
await base.OnConnectedAsync();
}
public override async Task OnDisconnectedAsync(Exception exception)
{
await base.OnDisconnectedAsync(exception);
}
}
}
namespace ChatService.Models
{
public class ChatMessage
{
public string SenderName { get; set; }
public string Text { get; set; }
public DateTimeOffset SendAt { get; set; }
}
}
وقتی hub از سمت برنامه صدا میزنم خطای اتثال به دیتابیس میدهد
private readonly IBLL _BLL; private readonly IDapper _dapper;
public ChatHub(IBLL bll, IDapper dapper)
{
this._BLL = bll;
this._dapper = dapper;
}
Exception: An unexpected error occurred invoking 'GetListChat' on the server. SqlException: A network-related or instance-specific error occurred while establishing a connection to SQL Server
در startub این ها دارم
services.AddDbContext<AppContext>(options => options.UseSqlServer(Configuration.GetConnectionSt ring("DefaultConnection"))); services.AddScoped<IDapper, Dapperr>();
services.AddScoped<IBLL, BLL>();
services.AddScoped<ChatHub>();
ولی کلاس bll بدون خطا در کنترل کار میکند نمیدونم چرا برای این Hub گیر میده
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