注塑空载具出库优化

common/Tnb.Common/Redis/RedisData.cs

@@ -8,6 +8,7 @@ using JNPF;
 using JNPF.Common.Cache;
 using JNPF.DependencyInjection;
 using Microsoft.Extensions.Options;
+using Newtonsoft.Json;
 
 namespace Tnb.Common.Redis
 {
@@ -243,5 +244,25 @@ namespace Tnb.Common.Redis
         {
             return _instance.HSetAsync(key, field, value);
         }
+
+        public async Task<T> TryGetValueByKeyField<T>(string key, string field)
+        {
+            if (await _instance.HExistsAsync(key, field))
+            {
+                string data = await GetHash(key, field);
+                Dictionary<String, String> json = JsonConvert.DeserializeObject<Dictionary<String, String>>(data);
+                Type type = typeof(T);
+                if (!type.IsValueType || (type.IsGenericType && type.GetGenericTypeDefinition() == typeof(Nullable<>)))
+                {
+                    return (T)Convert.ChangeType(json["Value"],type.GetGenericArguments()[0]);
+                }
+                else
+                {
+                    return (T)Convert.ChangeType(json["Value"],type);
+                }
+                // return ;
+            }
+            return default(T);
+        }
     }
 }