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试图在signar内的组中添加客户端,但不起作用

signalr asp.net-core c#

3

thelittlewozniak · 技术社区 · 6 年前

以下是中心代码:

public interface IActionClient
{
    // User is in front of the cameras
    Task HighlightUser(Guid userId);
    // When users added or deleted
    Task UpdateGame(int gameId);
    Task JoinGroupAsync(string groupName);
    Task LeaveGroupAsync(string groupName);
}

// possible clients
public enum ClientType
{
    Leaderboard,
    Dashboard,
    Register
}

public class OneHub : Hub<IActionClient>
{
    public OneHub()
    {
    }

    public override async Task OnConnectedAsync()
    {
        await base.OnConnectedAsync();
    }

    public async Task JoinGroupAsync(string groupName) => await Groups.AddToGroupAsync(Context.ConnectionId, groupName);

    public async Task LeaveGroupAsync(string groupName) => await Groups.RemoveFromGroupAsync(Context.ConnectionId, groupName);

    // todo : groups 
}

当我试图把我的客户添加到组中时:

        // add client to group hub
        await _hubClients.Clients.All.JoinGroupAsync(groupName);

0 回复 | 直到 6 年前

1

0

user4851087 user4851087 6 年前

    public override Task AddGroupAsync(string connectionId, string groupName)
    {
        if (connectionId == null)
        {
            throw new ArgumentNullException(nameof(connectionId));
        }

        if (groupName == null)
        {
            throw new ArgumentNullException(nameof(groupName));
        }

        var connection = _connections[connectionId];
        if (connection == null)
        {
            return Task.CompletedTask;
        }

        _groups.Add(connection, groupName);

        return Task.CompletedTask;
    }

裁判 code

希望有帮助