sqlserver数据库批量插入-SqlBulkCopy

CREATE TABLE [dbo].[Users]( 2 [Id] [uniqueidentifier] NOT NULL, 3 [Name] [nvarchar](100) NULL, 4 [Gender] [int] NULL, 5 [Age] [int] NULL, 6 [CityId] [int] NULL, 7 [OpTime] [datetime] NULL, 8 CONSTRAINT [PK_Users] PRIMARY KEY CLUSTERED([Id] ASC)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY] 9 ) ON [PRIMARY]

然后定义一个与表映射的Model,因SqlBulkCopy 的特性，定义的 Model 必须拥有与表所有的字段对应的属性：也就是定义的model，需要跟数据表的字段顺序一样，因为转为datatable时会按照顺序插入

 1 public enum Gender
 2 {
 3     Man = 1,
 4     Woman
 5 }
 6 
 7 public class User
 8 {
 9     public Guid Id { get; set; }
10     public string Name { get; set; }
11     public Gender? Gender { get; set; }
12     public int? Age { get; set; }
13     public int? CityId { get; set; }
14     public DateTime? OpTime { get; set; }
15 }

制造些数据转为DataTable：

List转为DataTable地址：https://www.cnblogs.com/zhangShanGui/p/12038563.html

 1 List<User> usersToInsert = new List<User>();
 2 usersToInsert.Add(new User() { Id = Guid.NewGuid(), Name = "so1", Gender = Gender.Man, Age = 18, CityId = 1, OpTime = DateTime.Now });
 3 usersToInsert.Add(new User() { Id = Guid.NewGuid(), Name = "so2", Gender = Gender.Man, Age = 19, CityId = 2, OpTime = DateTime.Now });
 4 usersToInsert.Add(new User() { Id = Guid.NewGuid(), Name = "so3", Gender = Gender.Man, Age = 20, CityId = 3, OpTime = DateTime.Now });
 5 usersToInsert.Add(new User() { Id = Guid.NewGuid(), Name = "so4", Gender = Gender.Man, Age = 21, CityId = 4, OpTime = DateTime.Now });
 6 
 7 var data = DataTableExtensions.ToDataTable(usersToInsert);
 8  using (SqlBulkCopy bulkCopy = new SqlBulkCopy(ConnectionString))
 9                 {
10                     bulkCopy.DestinationTableName =
11                         "Users";
12                     try
13                     {
14                         bulkCopy.WriteToServer(data, DataRowState.Added);
15                     }
16                     catch (Exception ex)
17                     {
18                         Console.WriteLine(ex.Message);
19                     }
20                 }

sqlserver数据库批量插入-SqlBulkCopy

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