public override bool TryGetValue <T>(string key, out T value)
{
try
{
MongoDBCacheEntity entity = GetMongoDBEntity(key);
value = default(T);
value = JsonConvert.DeserializeObject <T>(entity.CacheValue);
return(true);
}
catch (Exception ex)
{
OnOperating("尝试获取值异常：exception:key:" + key + ",excption:" + JsonConvert.SerializeObject(ex));
value = default(T);
return(false);
}
}
public override object GetValue(string key)
{
try
{
MongoDBCacheEntity entity = GetMongoDBEntity(key);
if (entity != null)
{
OnOperating("获取value成功:end-->:key:" + key + ",value:" + entity.CacheValue);
return(entity.CacheValue);
}
OnOperating("获取value失败:未找到key:" + key + "对应的值");
return(null);
}
catch (Exception ex)
{
OnOperating("获取value异常:" + JsonConvert.SerializeObject(ex) + "");
return(null);
}
}
public override bool SetValue <T>(string key, T value, Cachelimit cacheLimit, DateTime?expireDate)
{
Server server = ChooseServer(key);
MongoDBCacheEntity cache = new MongoDBCacheEntity();
cache.ApplicationName = "";
cache.Created = DateTime.Now;
cache.CacheKey = key;
cache.ExpireDate = cacheLimit == Cachelimit.Forever ? Convert.ToDateTime("2099-12-30") : (cacheLimit == Cachelimit.CurrentDay ? Convert.ToDateTime(DateTime.Now.ToString("yyyy-MM-dd") + " 23:59:59") : Convert.ToDateTime(expireDate));
cache.CacheSta = CacheStatus.Effective;
cache.CacheValue = JsonConvert.SerializeObject(value);
MongoCollection <MongoDBCacheEntity> collection = GetMongoDBCollection(server.ConnStr);
if (collection != null)
{
try
{
var query = Query.And(Query.EQ("CacheKey", key));
collection.Remove(query);
}
catch (Exception ex)
{ }
var document = BsonSerializer.Deserialize <BsonDocument>(JsonConvert.SerializeObject(cache));
WriteConcernResult res = collection.Save(document);
TimeSpan timespan = cache.ExpireDate.Subtract(DateTime.Now);
if (cacheLimit != Cachelimit.Forever)
{
if (!collection.IndexExists(new IndexKeysBuilder().Ascending("ExpireDate")))
{
collection.EnsureIndex(new IndexKeysBuilder().Ascending("ExpireDate"), IndexOptions.SetTimeToLive(timespan));
}
}
OnOperating("写入完成end:key:" + key + ",serverConnstr:" + server.connstr + ",result:" + res.Ok + "," + res.ErrorMessage);
return(true);
}
return(false);
}
