1、類設計，EXCEL要據配置讀入DATASET

using System;
using System.Data;
using System.Collections;
using System.Data.OleDb;

namespace HKH.Common
{?
?/// <summary>
?/// Excel 表格中 列標頭 與 列索引 的對應轉換
?/// </summary>
?/// <remarks>Create By Liwt on 2006 - 09 - 15
?/// </remarks>
?enum EnumExcelColumn
?{
??A = 0,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z,
??AA,AB,AC,AD,AE,AF,AG,AH,AI,AJ,AK,AL,AM,AN,AO,AP,AQ,AR,AS,AT,AU,AV,AW,AX,AY,AZ,
??BA,BB,BC,BD,BE,BF,BG,BH,BI,BJ,BK,BL,BM,BN,BO,BP,BQ,BR,BS,BT,BU,BV,BW,BX,BY,BZ,
??CA,CB,CC,CD,CE,CF,CG,CH,CI,CJ,CK,CL,CM,CN,CO,CP,CQ,CR,CS,CT,CU,CV,CW,CX,CY,CZ,
??DA,DB,DC,DD,DE,DF,DG,DH,DI,DJ,DK,DL,DM,DN,DO,DP,DQ,DR,DS,DT,DU,DV,DW,DX,DY,DZ,
??EA,EB,EC,ED,EE,EF,EG,EH,EI,EJ,EK,EL,EM,EN,EO,EP,EQ,ER,ES,ET,EU,EV,EW,EX,EY,EZ,
??FA,FB,FC,FD,FE,FF,FG,FH,FI,FJ,FK,FL,FM,FN,FO,FP,FQ,FR,FS,FT,FU,FV,FW,FX,FY,FZ,
??GA,GB,GC,GD,GE,GF,GG,GH,GI,GJ,GK,GL,GM,GN,GO,GP,GQ,GR,GS,GT,GU,GV,GW,GX,GY,GZ,
??HA,HB,HC,HD,HE,HF,HG,HH,HI,HJ,HK,HL,HM,HN,HO,HP,HQ,HR,HS,HT,HU,HV,HW,HX,HY,HZ,
??IA,IB,IC,ID,IE,IF,IG,IH,II,IJ,IK,IL,IM,IN,IO,IP,IQ,IR,IS,IT,IU,IV
?}

?/// <summary>
?/// 從Excel導入數據到DataSet，帶有虛函數的基類
?/// </summary>
?/// <remarks>Create By Liwt on 2006 - 09 - 15
?/// </remarks>
?public class clsImportExcel
?{
??#region 變量

??protected String m_MappingFile;?????//映射配置文件路徑
??protected String m_ExcelSheetName;????//Excel中要導入數據的表名
??protected String m_SqlTableName;????//要導入的Sql表名，也可為其它類型的，如Oracle
??protected ArrayList[] m_ColumnMapping;???//列映射配置列表，包括3部分 0--Sql列名，1--Excel列索引
??????????????//2-- 如當前Excel行為空，是否賦值為上一行的值
??private bool isLoadMapping;

??#endregion

??#region 構造函數

??/// <summary>
??/// 無參構造
??/// </summary>
??public clsImportExcel()
??{
???m_MappingFile = "";
???m_ExcelSheetName = "";
???isLoadMapping = false;
???m_ColumnMapping = new ArrayList[3];
???
???m_ColumnMapping[0] = new ArrayList();
???m_ColumnMapping[1] = new ArrayList();
???m_ColumnMapping[2] = new ArrayList();
??}

??/// <summary>
??/// 構造函數重載
??/// </summary>
??/// <param name="mappingFilePath">映射配置文件路徑</param>
??/// <param name="excelSheetName">Excel中要導入數據的表名</param>
??public clsImportExcel(String mappingFilePath, String excelSheetName)
??{
???m_MappingFile = mappingFilePath;
???m_ExcelSheetName = excelSheetName;
???isLoadMapping = false;
???m_ColumnMapping = new ArrayList[3];

???m_ColumnMapping[0] = new ArrayList();
???m_ColumnMapping[1] = new ArrayList();
???m_ColumnMapping[2] = new ArrayList();
??}

??#endregion

??#region 屬性

??/// <summary>
??/// 讀取或設置 映射配置文件路徑
??/// </summary>
??public String MappingFilePath
??{
???get
???{
????return m_MappingFile;
???}
???set
???{
????m_MappingFile = value;
????isLoadMapping = false;
???}
??}

??/// <summary>
??/// 讀取或設置 Excel中要導入數據的表名
??/// </summary>
??public String ExcelSheetName
??{
???get
???{
????return m_ExcelSheetName;
???}
???set
???{
????m_ExcelSheetName = value;
????isLoadMapping = false;
???}
??}

??#endregion

??#region 公共方法

??/// <summary>
??/// 導入數據
??/// </summary>
??/// <param name="excelFilePath">要導入的Excel文件路徑</param>
??/// <param name="dsTarget">目標DataSet</param>
??/// <returns>ture -- 成功, false -- 失敗
??/// </returns>
??public bool Import(String excelFilePath,ref DataSet dsTarget)
??{
???try
???{
????if (!isLoadMapping)
????{
?????if (!LoadMapping())
?????{
??????return false;
?????}
????}

????//利用Ole讀取Excel數據
????OleDbConnection oleConn = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Extended Properties=Excel 8.0;Data Source=" + excelFilePath + ";");
????OleDbDataAdapter oleDA = new OleDbDataAdapter("SELECT * FROM [" + m_ExcelSheetName + "$]",oleConn);

????DataSet dsExcel = new DataSet();
????oleDA.Fill(dsExcel,m_ExcelSheetName);

????oleDA.Dispose();
????oleConn.Dispose();

????//對建立數據行緩存，以備填充對空單元格進行處理
????DataRow tempRow = dsExcel.Tables[m_ExcelSheetName].Rows[0];

????for ( int i = 0 ;i<dsExcel.Tables[m_ExcelSheetName].Rows.Count; i ++ )
????{
?????DataRow excelRow = dsExcel.Tables[m_ExcelSheetName].Rows[i];

?????//調用導入前數據處理函數，并根據返回值確定下一步處理
?????if (!ImportingBefore(ref excelRow))
?????{
??????continue;
?????}

?????DataRow sqlNewRow = dsTarget.Tables[0].NewRow();

?????for ( int j = 0 ;j<m_ColumnMapping[0].Count; j ++ )
?????{
??????String sqlColName = m_ColumnMapping[0][j].ToString();
??????int excelColindex = (int)m_ColumnMapping[1][j];
??????bool inherit = Convert.ToBoolean(m_ColumnMapping[2][j]);

??????//如果當前行當前列為空
??????if (Convert.IsDBNull(excelRow[excelColindex]))
??????{
???????//如果允許以臨時值填充
???????if (inherit)
???????{
????????sqlNewRow[sqlColName] = tempRow[excelColindex];
???????}
??????}
??????else
??????{
???????//填充數據，更新緩存行數據
???????sqlNewRow[sqlColName] = excelRow[excelColindex];
???????tempRow[excelColindex] = excelRow[excelColindex];
??????}

?????}

?????//調用導入后數據處理，并根據返回值決定下一步處理
?????if (ImportingAfter(ref sqlNewRow))
?????{
??????dsTarget.Tables[0].Rows.Add(sqlNewRow);
?????}
????}

????return true;
???}
???catch
???{
????return false;
???}
??}

??#endregion

??#region 受保護的虛函數，子類須重寫

??/// <summary>
??/// 在導入前對Excel行數據進行處理
??/// </summary>
??/// <param name="drExcelRow">正在讀取的當前Excel行</param>
??/// <returns>true -- 繼續處理，false -- 跳過當前行
??/// </returns>
??protected virtual bool ImportingBefore(ref DataRow drExcelRow)
??{
???return true;
??}

??/// <summary>
??/// 在數據轉存后對當前行進行處理
??/// </summary>
??/// <param name="drSqlRow">已經轉存數據的當前Sql行</param>
??/// <returns>true -- 繼續處理，false -- 跳過當前行
??/// </returns>
??protected virtual bool ImportingAfter(ref DataRow drSqlRow)
??{
???return true;
??}

??#endregion

??#region 私有方法

??/// <summary>
??/// 加載配置文件，取得表和列的映射
??/// </summary>
??/// <returns></returns>
??private bool LoadMapping()
??{
???try
???{
????//清除已過時的配置
????m_ColumnMapping[0].Clear();
????m_ColumnMapping[1].Clear();
????m_ColumnMapping[2].Clear();

????if (m_MappingFile == null || m_MappingFile == "")
????{
?????throw new Exception("找不到配置文件");
????}

????//讀入配置文件
????DataSet dsMaping = new DataSet();
????dsMaping.ReadXml(m_MappingFile);

????if (dsMaping.Tables.Count == 0)
????{
?????throw new Exception("讀取配置文件失敗");
????}

????//讀取表映射
????DataRow[] tableMap = dsMaping.Tables["TableMapping"].Select("excelSheet='" + m_ExcelSheetName + "'");

????if (tableMap.Length != 1)
????{
?????throw new Exception("該Sheet不存在或多次配置");
????}

????//讀取列映射
????DataRow[] colMap = dsMaping.Tables["ColumnMapping"].Select("TableMapping_id="+tableMap[0]["TableMapping_id"].ToString());

????if (colMap.Length <= 0)
????{
?????throw new Exception("沒有為該表配置列映射");
????}

????for (int i = 0; i < colMap.Length; i ++)
????{
?????m_ColumnMapping[0].Add(colMap[i]["sqlCol"]);
?????m_ColumnMapping[1].Add((int)Enum.Parse(typeof(EnumExcelColumn),colMap[i]["excelCol"].ToString(),true));
?????m_ColumnMapping[2].Add(colMap[i]["inherit"]);
????}

????//設置為已加載配置
????isLoadMapping = true;

????return true;
???}
???catch
???{
????return false;
???}
??}

??#endregion
?}
}

2、配置文件XSD

3、?配置文件樣例

excelSheet ----要導入數據庫的EXCEL文件中的工作薄名

SQLTABLE---要導入的數據庫表名

EXCELCOL--EXCEL表中列標頭

SQLCOL--SQL數據庫中列名

inherit---當EXCEL中有表格合并時，是否繼續上面的單元格值，此處用于拆解單元格，本處指合并行，TRUE為拆解，即所有單元格都以合并值填充，為FALSE則第一行為填充值，其它各行以空填充

<ImportConfiguration>
?<TableMapping excelSheet="Sheet1" sqlTable="CNKI_illegalIPInfo">
??<ColumnMapping excelCol="A" sqlCol="UnitName" inherit="false"/>
??<ColumnMapping excelCol="B" sqlCol="StartIP" inherit="false"/>
??<ColumnMapping excelCol="C" sqlCol="EndIP" inherit="false"/>
?</TableMapping>
</ImportConfiguration>

?

總結

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