注意datatable里的列要和数据库重的键要对应。数量和名称都得对应
public static void BatchInsert(DataTable dt, string tableName)
{
string connstr = Properties.Settings.Default.lswxConnectionString;
using (SqlConnection conn = new SqlConnection(connstr))
{
Stopwatch sw = new Stopwatch();
SqlBulkCopy bulkCopy = new SqlBulkCopy(conn);
bulkCopy.DestinationTableName = tableName;
bulkCopy.BatchSize = dt.Rows.Count;
conn.Open();
sw.Start();
if (dt != null)
{
bulkCopy.WriteToServer(dt);
sw.Stop();
}
conn.Close();
}
}