sql server 导入Excel数据

Question

    <pre class="csharp" name="code">      
           //测试，将excel中的sheet1导入到sqlserver中  
            private void run_Click(object sender, EventArgs e)  
            {  
                System.Windows.Forms.OpenFileDialog fd = new OpenFileDialog();  
                if (fd.ShowDialog() == DialogResult.OK)  
                {  
                   DataSet ds=  TransferData(fd.FileName, "sheet1");        
                   AddBatch(ds.Tables[0]);  
                }  
            }  
            public DataSet TransferData(string excelFile, string sheetName)  
            {  
                DataSet ds = new DataSet();  
                try  
                {  
                    //获取全部数据  
                    string strConn = "Provider=Microsoft.Jet.OLEDB.4.0;" + "Data Source=" + excelFile + ";" + "Extended Properties=Excel 8.0;";  
                    if (excelFile.ToLower().IndexOf(".xlsx") > 0 && excelFile.ToLower().EndsWith("xlsx"))  
                    {  
                        strConn = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source='" + excelFile + "';Extended Properties='Excel 12.0;HDR=YES'";  
                    }  
                    else if (excelFile.ToLower().IndexOf(".xls") > 0 && excelFile.ToLower().EndsWith("xls"))  
                    {  
                        strConn = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source='" + excelFile + "';Extended Properties='Excel 8.0;HDR=YES;'";  
                    }  
                    else  
                    {  
                        return null;  
                    }  
                    OleDbConnection conn = new OleDbConnection(strConn);  
                    conn.Open();  
                    string strExcel = "";  
                    OleDbDataAdapter myCommand = null;  
                    strExcel = string.Format("select * from [{0}$]", sheetName);  
                    myCommand = new OleDbDataAdapter(strExcel, strConn);  
                    myCommand.Fill(ds, sheetName);  
                    return ds;  
                }  
                catch (Exception ex)  
                {  
                    System.Windows.Forms.MessageBox.Show(ex.Message);  
                }  
                return null;  
            }            /// <summary>  
            /// 批量添加  
            /// </summary>  
            /// <param name="dt"></param>  
            public void AddBatch(DataTable dt)  
            {  
                SqlBulkCopyColumnMapping[] sc = new SqlBulkCopyColumnMapping[] {   
                    new SqlBulkCopyColumnMapping(0, "site"),  
                new SqlBulkCopyColumnMapping(1, "goodslocationid"),  
                new SqlBulkCopyColumnMapping(2, "area")};            DbHelperSQL.TransferData(dt, "wms_goodsLocation", sc);  
            }    public static void TransferData(DataTable dtb, string tableName, SqlBulkCopyColumnMapping[]  sbccm)  
            {  
                using (System.Data.SqlClient.SqlBulkCopy bcp = new System.Data.SqlClient.SqlBulkCopy(connectionString))  
                {  
                    bcp.BatchSize = 100;//每次传输的行数  
                    bcp.DestinationTableName = tableName;// 目标表  
                    foreach(SqlBulkCopyColumnMapping s in sbccm)  
                    bcp.ColumnMappings.Add(s);  
                    bcp.WriteToServer(dtb);  
                }  
            }  
    </pre><br>  
    <pre></pre>  
    <pre></pre>  
    <pre></pre>    

Answer 1

我是这样做的，但导入到master中sheet1表，我想导到我指定数据库中的指定表，表的字段比excel中的多，怎么实现
string str = Server.MapPath("~/excel/") + "201412yc.xls";
        //SqlDataAccess.bulkinsert(str);
        //string connString = "server=127.0.0.1;uid=sa;pwd=123456;database=master";
        string connString = "server=HYL-PC\\SQLEXPRESS;User ID=sa;Password=123456;database=master;Connection Reset=false";
        TransferData(str, "sheet1", connString);public void TransferData(string str, string sheetName, string connectionString)
    {
        DataSet ds = new DataSet();
        try
        {
            //获取全部数据
            //string strConn = "Proovider=Microsoft.Jet.OLEDB.4.0;Data Source=" + str + ";" + "Extended Properties=Excel 8.0;";
            string strConn = "Provider=Microsoft.Jet.OLEDB.4.0;" + "Data Source=" + str + ";" + "Extended Properties='Excel 8.0;HDR=YES;IMEX=1'";
            OleDbConnection conn = new OleDbConnection(strConn);
            conn.Open();
            string strExcel = "";
            OleDbDataAdapter myCommand = null;
            strExcel = string.Format("select * from [{0}$]", sheetName);
            myCommand = new OleDbDataAdapter(strExcel, strConn);
            myCommand.Fill(ds, sheetName);            //如果目标表不存在则创建
            string strSql = string.Format("if object_id('{0}') is null create table {0}(", sheetName);
            foreach (System.Data.DataColumn c in ds.Tables[0].Columns)
            {
                strSql += string.Format("[{0}] varchar(255),", c.ColumnName);
            }
            strSql = strSql.Trim(',') + ")";            using (System.Data.SqlClient.SqlConnection sqlconn = new System.Data.SqlClient.SqlConnection(connectionString))
            {
                sqlconn.Open();
                System.Data.SqlClient.SqlCommand command = sqlconn.CreateCommand();
                command.CommandText = strSql;
                command.ExecuteNonQuery();
                sqlconn.Close();
            }
            //用bcp导入数据
            using (System.Data.SqlClient.SqlBulkCopy bcp = new System.Data.SqlClient.SqlBulkCopy(connectionString))
            {
                bcp.SqlRowsCopied += new System.Data.SqlClient.SqlRowsCopiedEventHandler(bcp_SqlRowsCopied);
                bcp.BatchSize = 100;//每次传输的行数
                bcp.NotifyAfter = 100;//进度提示的行数
                bcp.DestinationTableName = sheetName;//目标表
                bcp.WriteToServer(ds.Tables[0]);
            }
        }
        catch (Exception ex)
        {
            ClientScript.RegisterStartupScript(ClientScript.GetType(), "提示信息", ex.Message);
        }
    }    //进度显示
    void bcp_SqlRowsCopied(object sender, System.Data.SqlClient.SqlRowsCopiedEventArgs e)
    {    }