c# - 仅在找到/存在实例时才使用 Redis 进行缓存？

Question

我想使用 Redis 进行缓存，但如果在运行时未找到 Redis 实例，我仍然希望我的服务能够正常运行。

在实践中有这样的例子吗？

Answer 1

您可以在 AppHost Configure 方法中执行类似以下操作

public override void Configure(Container container)
{
    ...
    try
    {
        var redisManager = new PooledRedisClientManager("localhost:6379");
        // do some sort of test to see if we can talk to the redis server
        var client = redisManager.GetCacheClient();
        var fakeKey = "_________test_______";
        client.Add(fakeKey, 1);
        client.Remove(fakeKey);
                    // if it worked register the cacheClient
        container.Register(c => redisManager.GetCacheClient()).ReusedWithin(ReuseScope.None);
    }
    catch (Exception ex)
    {
        // fall back to in memory cache
        // Log some sort of warning here.
        container.Register<ICacheClient>(c => new MemoryCacheClient());
    }
    ...
}