diff --git a/CC.Yi.API/Controllers/StudentController.cs b/CC.Yi.API/Controllers/StudentController.cs
index c194db1f..45e52835 100644
--- a/CC.Yi.API/Controllers/StudentController.cs
+++ b/CC.Yi.API/Controllers/StudentController.cs
@@ -1,6 +1,6 @@
-using CC.Yi.IBLL;
+using CC.Yi.Common;
+using CC.Yi.IBLL;
 using CC.Yi.Model;
-using Common;
 using Microsoft.AspNetCore.Identity;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.EntityFrameworkCore;
diff --git a/CC.Yi.Common/Result.cs b/CC.Yi.Common/Result.cs
index 0b4940ce..6f210764 100644
--- a/CC.Yi.Common/Result.cs
+++ b/CC.Yi.Common/Result.cs
@@ -3,37 +3,37 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Web;
 
-namespace Common
+namespace CC.Yi.Common
 {
     /// <summary>
     /// 结果数据
     /// </summary>
     public class Result
     {
-        public bool Status { get; set; }
-        public int  Code { get; set; }
-        public string Msg { get; set; }
-        public object Data { get; set; }
+        public bool status { get; set; }
+        public int code { get; set; }
+        public string msg { get; set; }
+        public object data { get; set; }
         public static Result Instance(bool status, string msg)
         {
-            return new Result() { Status = status,Code=500, Msg = msg };
+            return new Result() { status = status, code = 500, msg = msg };
         }
-        public static Result Error(string msg)
+        public static Result Error(string msg = "fail")
         {
-            return new Result() { Status = false, Code = 500, Msg = msg };
+            return new Result() { status = false, code = 500, msg = msg };
         }
-        public static Result Success(string msg= "succeed")
+        public static Result Success(string msg = "succeed")
         {
-            return new Result() { Status = true, Code = 200, Msg = msg };
+            return new Result() { status = true, code = 200, msg = msg };
         }
-        public  Result SetData(object obj)
+        public Result SetData(object obj)
         {
-            this.Data = obj;
+            this.data = obj;
             return this;
         }
         public Result SetCode(int Code)
         {
-            this.Code = Code;
+            this.code = Code;
             return this;
         }
     }
diff --git a/CC.Yi.DAL/DbContentFactory.cs b/CC.Yi.DAL/DbContentFactory.cs
index 2ef1c920..7e110070 100644
--- a/CC.Yi.DAL/DbContentFactory.cs
+++ b/CC.Yi.DAL/DbContentFactory.cs
@@ -17,18 +17,26 @@ namespace CC.Yi.DAL
         }
         public static DataContext GetCurrentDbContent()
         {
-            //return new DataModelContainer();
-            //一次请求共用一个上下文实例
-            //每一次http请求都会开启一个新的线程，保证在一个线程中,DbContext是唯一的
-            //CallContext：是线程内部唯一的数据槽（一块内存空间/容器）,相当于一个键值对数据容器，通过key获取value了,需要引入System.Runtime.Remoting.Messaging;命名空间
-            DataContext db = CallContext.GetData("DbContext") as DataContext;
+            object myLock = new object();
+            lock (myLock)
+            {
+                //return new DataModelContainer();
+                //一次请求共用一个上下文实例
+                //每一次http请求都会开启一个新的线程，保证在一个线程中,DbContext是唯一的
+                //CallContext：是线程内部唯一的数据槽（一块内存空间/容器）,相当于一个键值对数据容器，通过key获取value了,需要引入System.Runtime.Remoting.Messaging;命名空间
+                DataContext db = CallContext.GetData("DbContext") as DataContext;
             //从 CallContext 中检索具有指定key“DbContext”的对象，并强转为DbContext
+
             if (db == null)//线程在数据槽里面没有此上下文
             {
-                db = Webcontext;
-                CallContext.SetData("DbContext", db);//放到数据槽中去,DbContext是key，db是value
-            }
+               
+
+                    db = Webcontext;
+                    CallContext.SetData("DbContext", db);//放到数据槽中去,DbContext是key，db是value
+                }
+          
             return db;
+            }
         }
 
         private static class CallContext