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/// <summary>
/// Excel导入数据源
/// </summary>
/// <param name="sheet">sheet</param>
/// <param name="filename">文件路径</param>
/// <returns></returns>
public static DataTable ExcelToDataSet(string sheet, string filename)
{
try
{
DataSet ds;
OleDbConnection myConn = new OleDbConnection(ConnectionString(filename));
string strCom = " SELECT * FROM [" + sheet + "$]";
myConn.Open();
OleDbDataAdapter myCommand = new OleDbDataAdapter(strCom, myConn);
ds = new DataSet();
myCommand.Fill(ds);
myConn.Close();
DataTable dt = ds.Tables[0];
dt.TableName = sheet;
return dt;
}
catch (Exception ex)
{
Logger.WriteLog("-----------Excel导入数据异常-----------\r\n" + ex.ToString() + "\r\n");
return null;
}
}
/// <summary>
///大批量数据插入
/// </summary>
/// <param name="table">数据表</param>
/// <param name="connectionString">数据库连接字符串</param>
/// <returns></returns>
public bool SqlServerBulkInsert(DataTable table, string connectionString)
{
try
{
using (SqlConnection conn = new SqlConnection(connectionString))
{
conn.Open();
SqlTransaction trans = conn.BeginTransaction();
SqlBulkCopy sqlbulkCopy = new SqlBulkCopy(conn, SqlBulkCopyOptions.Default, trans);
// 设置源表名称
sqlbulkCopy.DestinationTableName = table.TableName;
//分几次拷贝
//sqlbulkCopy.BatchSize = 10;
// 设置超时限制
sqlbulkCopy.BulkCopyTimeout = CommandTimeOut;
foreach (DataColumn dtColumn in table.Columns)
{
sqlbulkCopy.ColumnMappings.Add(dtColumn.ColumnName, dtColumn.ColumnName);
}
try
{
// 写入
sqlbulkCopy.WriteToServer(table);
// 提交事务
trans.Commit();
return true;
}
catch
{
trans.Rollback();
sqlbulkCopy.Close();
return false;
}
finally
{
conn.Close();
conn.Dispose();
sqlbulkCopy.Close();
}
}
}
catch (Exception e)
{
DbLog.WriteException(e);
return false;
}
}