diff --git a/WebSiteCode/Cmdjy/Cmdjy/Bll/Cache.cs b/WebSiteCode/Cmdjy/Cmdjy/Bll/Cache.cs
index 0ea91cb..aaca96b 100644
--- a/WebSiteCode/Cmdjy/Cmdjy/Bll/Cache.cs
+++ b/WebSiteCode/Cmdjy/Cmdjy/Bll/Cache.cs
@@ -76,7 +76,7 @@ namespace Cmdjy.Bll
         }
 
         public virtual void SetData<T>(string key,T obj) {
-            SetData(key,obj,new TimeSpan(3,0,0,0));
+            SetData(key,obj,WebSettings.DefaultCacheTimeSpan);
         }
 
         public virtual void SetData<T>(string key,T obj,TimeSpan timeSpan) {
diff --git a/WebSiteCode/Cmdjy/Cmdjy/WebSettings.cs b/WebSiteCode/Cmdjy/Cmdjy/WebSettings.cs
index 3c5295c..fd5f074 100644
--- a/WebSiteCode/Cmdjy/Cmdjy/WebSettings.cs
+++ b/WebSiteCode/Cmdjy/Cmdjy/WebSettings.cs
@@ -51,5 +51,20 @@ namespace Cmdjy
                 return true;
             }
         }
+        /// <summary>
+        /// 已秒为单位的默认缓冲时间。
+        /// </summary>
+        public static TimeSpan DefaultCacheTimeSpan {
+            get {
+                var v = GetValue("DefaultCacheTimeSpan");
+                if(v == null || !long.TryParse(v,out var lv)) {
+                    return new TimeSpan(0,10,0);
+                }
+                else {
+                    return new TimeSpan(lv * 1000000 / 100);
+                }
+
+            }
+        }
     }
 }
\ No newline at end of file