准备一下,近段时间,需要把Excel的数据导入数据库中。
引用命名空间:
using System.Configuration;using System.Data;using System.Data.OleDb;using System.Data.SqlClient;
你可以写一个方法,是去读取Excel文档的方法,返回DataSet数据集:
private DataSet ImportExcelToDataSet(string virtualPath, string sqlQueryStatement) { string excelConnectionString = DB.ExcelConnectionString(Server.MapPath(virtualPath)); OleDbConnection dc = new OleDbConnection(excelConnectionString); OleDbDataAdapter da = new OleDbDataAdapter(sqlQueryStatement, dc); DataSet ds = new DataSet(); da.Fill(ds); return ds; }
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导入数据库,在数据库中,需要创建一个表来存储Excel导入来的数据:
接下来,你可以使作SqlBulkCopy的方法进行复制数据库:
try { string cs = ConfigurationManager.ConnectionStrings["InsusSqlConnectionString"].ConnectionString; using (SqlConnection sqlConn = new SqlConnection(cs)) { string sqlQueryStatement = "SELECT [Material],[Plnt],[Level],[Item],[Component],[Object description] FROM [Sheet1$]"; string virtualPath = "~/App_Data/Book1.xlsx"; DataSet ds = ImportExcelToDataSet(virtualPath, sqlQueryStatement); DataTable dt = ds.Tables[0]; sqlConn.Open(); using (SqlBulkCopy sqlbc = new SqlBulkCopy(sqlConn)) { sqlbc.DestinationTableName = "BOM"; sqlbc.ColumnMappings.Add("Material", "Material"); sqlbc.ColumnMappings.Add("Plnt", "Plnt"); sqlbc.ColumnMappings.Add("Level", "Level"); sqlbc.ColumnMappings.Add("Item", "Item"); sqlbc.ColumnMappings.Add("Component", "Component"); sqlbc.ColumnMappings.Add("Object description", "Object description"); sqlbc.WriteToServer(dt); Response.Write("数据导入成功!"); } } } catch (Exception ex) { throw ex; }
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演示:
下面内容于2017-10-17 14:38分添加:
使用sqlDataReader来导入,没有做过多的测试,速度与DataSet快不了多少:
private OleDbDataReader ImportExcelToDataReader(string virtualPath, string sqlQueryStatement) { string excelConnectionString = DB.ExcelConnectionString(Server.MapPath(virtualPath)); OleDbConnection oleConn = new OleDbConnection(excelConnectionString); OleDbCommand oleComm = new OleDbCommand(sqlQueryStatement, oleConn); oleConn.Open(); return oleComm.ExecuteReader(); }
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SqlBulkCopy的方法:
string sqlQueryStatement = "SELECT [Material],[Plnt],[Level],[Item],[Component],[Object description] FROM [Sheet1$]"; string virtualPath = "~/App_Data/Book1.xlsx"; string cs = ConfigurationManager.ConnectionStrings["InsusSqlConnectionString"].ConnectionString; SqlConnection sqlConn = new SqlConnection(cs); OleDbDataReader reader = ImportExcelToDataReader(virtualPath, sqlQueryStatement); using (SqlBulkCopy bulkCopy = new SqlBulkCopy(sqlConn)) { bulkCopy.DestinationTableName = "BOM"; try { sqlConn.Open(); bulkCopy.WriteToServer(reader); Response.Write("数据导入成功。"); } catch (Exception ex) { Console.WriteLine(ex.Message); } finally { reader.Close(); sqlConn.Close(); } }
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