问题:我使用nHibernate(流畅)
从XML批量插入数据我将XML文件读入数据表,然后从中创建一个List。 之后,我在该列表上运行BulkInsert。
像这样:
// http://stackoverflow.com/questions/982295/saving-1000-records-to-the-database-at-a-time
public static void BulkInsert(List<dynamic> ls)
{
//List<DB.Tables.T_Users> ls = new List<DB.Tables.T_Users>();
// Read from DataTable
var sessionFactory = CreateSessionFactory();
//using (ISession session = sessionFactory.OpenSession())
// http://davybrion.com/blog/2008/10/bulk-data-operations-with-nhibernates-stateless-sessions/
using (IStatelessSession session = sessionFactory.OpenStatelessSession())
{
using (var tx = session.BeginTransaction())
{
session.SetBatchSize(ls.Count);
foreach (var objThisItem in ls)
{
//session.SaveOrUpdate(objThisItem);
session.Insert(objThisItem);
}
tx.Commit();
}
}
}
它工作正常,只是新分配了用户ID(自动ID)。
这是T_User
CREATE TABLE [dbo].[T_User](
[USR_ID] [int] IDENTITY(1,1) NOT NULL,
[USR_Name] [nvarchar](50) NULL,
[USR_Prename] [nvarchar](50) NULL,
[USR_User] [nvarchar](50) NULL,
[USR_Password] [nvarchar](50) NULL,
[USR_Language] [nvarchar](5) NULL,
[USR_Hash] [nvarchar](50) NULL,
[USR_isLDAPSync] [bit] NOT NULL,
[USR_Domaene] [nvarchar](255) NULL,
[USR_Hide] [bit] NOT NULL,
PRIMARY KEY CLUSTERED
(
[USR_ID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
GO
如何插入用户并使用nHibernate保留ID? 我之后需要插入用户组映射,因此如果ID更改,这将失败...
.NET&amp; SqlClient有SqlBulkCopy 和
System.Data.SqlClient.SqlBulkCopyOptions.KeepIdentity
为此。
但是什么有nHibernate?
虽然我在这,但它有什么用于
System.Data.SqlClient.SqlBulkCopyOptions.KeepNulls
答案 0 :(得分:0)
尝试使用正确的映射:
mapping => mapping.Id(x => x.Id).GeneratedBy.Assigned()