创建线程内唯一EF对象

public static DbContext CreateDbContext()

        {

            DbContext dbContext = (DbContext)CallContext.GetData("dbcontext");

            if (dbContext == null)

            {

                dbContext = new JPKLEntities();

                CallContext.SetData("dbContext", dbContext);

            }

            return dbContext;

        }

原文：http://www.cnblogs.com/woxiangxin/p/4748758.html