/// <summary>
/// 根据条件查询服务的实例
/// </summary>
/// <param name="serviceName">服务的名称</param>
/// <returns>服务实例的实例列表，格式是(小写的服务实例Id，服务实例)</returns>
public async Task <List <ServiceDescription> > LookFor(string serviceName)
{
string key = GetKey(serviceName, string.Empty);
string pattern = key + "*";
string[] keys = await _redisManager.GetKeysByPatternAsync(pattern).ConfigureAwait(false);
if (keys != null && keys.Any())
{
List <ServiceDescription> list = new List <ServiceDescription>();
string[] values = await _redisManager.GetByKeysAsync(keys);
foreach (string josn in values)
{
ServiceDescription serviceDesc = JsonSerializer.Deserialize <ServiceDescription>(josn);
list.Add(serviceDesc);
}
return(list);
}
return(null);
}