如何使用Redis和C#开发用户会话管理功能

using StackExchange.Redis;

public class RedisConnection
{
    private static ConnectionMultiplexer _redis;

    public static ConnectionMultiplexer GetConnection()
    {
        if (_redis == null)
        {
            ConfigurationOptions config = new ConfigurationOptions
            {
                EndPoints = { "localhost:6379" },
                PassWord = "",
                KeepAlive = 180,
                DefaultDatabase = 0
            };

            _redis = ConnectionMultiplexer.Connect(config);
        }

        return _redis;
    }
}

public class Program
{
    static void Main(string[] args)
    {
        ConnectionMultiplexer redis = RedisConnection.GetConnection();
        IDatabase db = redis.GetDatabase();

        // 执行 Redis 操作
    }
}

using StackExchange.Redis;

public class SessionManager
{
    private static IDatabase _db;

    public SessionManager()
    {
        ConnectionMultiplexer redis = RedisConnection.GetConnection();
        _db = redis.GetDatabase();
    }

    public void SetSession(string sessionId, string userId, int expireSeconds)
    {
        _db.StringSet(sessionId, userId, TimeSpan.FromSeconds(expireSeconds));
    }

    public string GetSession(string sessionId)
    {
        return _db.StringGet(sessionId);
    }

    public void RemoveSession(string sessionId)
    {
        _db.KeyDelete(sessionId);
    }
}

public class Program
{
    static void Main(string[] args)
    {
        SessionManager sessionManager = new SessionManager();

        // 设置用户会话
        sessionManager.SetSession("sessionId", "userId", 3600);

        // 获取用户会话
        string userId = sessionManager.GetSession("sessionId");

        // 删除用户会话
        sessionManager.RemoveSession("sessionId");
    }
}