entityframework的執行緒內唯一是通過httpcontext來實現的
public static dbcontext dbcontext()
return dbcontext;
}
我們可以在註冊的時候，通過設定servicelifetime屬性來達到目的。
services.adddbcontext(options =>
,servicelifetime.scoped);
public static iservicecollection adddbcontext([notnull] this iservicecollection servicecollection, [canbenull] actionoptionsaction = null, servicelifetime contextlifetime = servicelifetime.scoped, servicelifetime optionslifetime = servicelifetime.scoped) where tcontext : dbcontext
)
EF框架 實體物件執行緒內唯一
1.執行緒內唯一 在專案中的dal層新增乙個dbcontextfactory類，寫如下 public class dbcontextfactory return db 2.在通用ef操作類呼叫以上 public class basedalwhere t class,new 刪除 public boo...
關於唯一鍵 Unique
sql create table test ranbo id number table created sql alter table test ranbo add constraint test ranbo uk unique id table altered sql insert into te...
關於髒讀與唯一約束
sql server 2012 案例 create table dbo.test id int identity,num int,uqno int alter table test add constraint pk test primary key id create unique index i...