public static BysjxtDB GetDbContext() { BysjxtDB dbContext = HttpContext.Current.Items["dbContext"] as BysjxtDB; if (dbContext == null) { dbContext = new BysjxtDB(); HttpContext.Current.Items["dbContext"] = dbContext; } return(dbContext); // return new BysjxtDB(); //BysjxtDB obj = CallContext.GetData("DbContext") as BysjxtDB; //if (obj == null) //{ // obj = new BysjxtDB(); // CallContext.SetData("DbContext", obj); //} //return obj; }