C# EXCEL报表数据导入数据库

[班门弄斧]

目前系统需要将历史的报表数据导入系统，望高手指点一二

[gongsun]

将Excel文件数据导入到SqlServer数据库的三种方案

[heiha008]

/// <summary>
/// 读取EXCEL
/// </summary>
/// <param name="filePath">文件路径</param>
/// <returns></returns>
public static DataTable LoadExcelByInterop(string filePath)
{
Interop.Excel.Application excel = null;
Interop.Excel.Workbooks wbs = null;
Interop.Excel.Workbook wb = null;
Interop.Excel.Worksheet ws = null;
Interop.Excel.Range range1 = null;

excel = new Interop.Excel.Application();
excel.UserControl = true;
excel.DisplayAlerts = false;

object Nothing = System.Reflection.Missing.Value;

excel.Application.Workbooks.Open(filePath, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing);

System.Data.DataTable table = new System.Data.DataTable();

wbs = excel.Workbooks;
wb = wbs[1];
ws = (Interop.Excel.Worksheet)wb.Worksheets[1];
int columnCount = ws.UsedRange.Cells.Columns.Count;
int rowCount = ws.UsedRange.Cells.Rows.Count;

range1 = ws.get_Range(ws.Cells[1, 1], ws.Cells[1, columnCount]);

object[,] obj = (object[,])range1.Value2;
// 添加表头
for (int i = 1; i < columnCount + 1; i++)
{
table.Columns.Add(obj[1, i].ToString());
}

range1.Clear();
range1 = ws.get_Range(ws.Cells[2, 1], ws.Cells[rowCount, columnCount]);

obj = (object[,])range1.Value2;

object[] value = new object[columnCount];


for (int row = 1; row <= obj.GetLength(0); row++)
{
table.Rows.Add(GetArray(obj, row));
}

CloseExcel(excel);
// 关闭相关变量
wb = null;
excel = null;
wbs = null;

return table;
}

[q107770540]

using System;   
using System.Data;   
using System.Windows.Forms;   
using System.Data.OleDb;   
namespace WindowsApplication2   
{   
    public partial class Form1 : Form   
    {   
        public Form1()   
        {   
            InitializeComponent();   
        }   
  
        private void button1_Click(object sender, EventArgs e)   
        {   
            //测试，将excel中的sheet1导入到sqlserver中   
            string connString = "server=localhost;uid=sa;pwd=sqlgis;database=master";   
            System.Windows.Forms.OpenFileDialog fd = new OpenFileDialog();   
            if (fd.ShowDialog() == DialogResult.OK)   
            {   
                TransferData(fd.FileName, "sheet1", connString);   
            }   
        }   
  
        public void TransferData(string excelFile, string sheetName, string connectionString)   
        {   
            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;";   
                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)   
            {   
                System.Windows.Forms.MessageBox.Show(ex.Message);   
            } 
        }   
  
        //进度显示   
        void bcp_SqlRowsCopied(object sender, System.Data.SqlClient.SqlRowsCopiedEventArgs e)   
        {   
            this.Text = e.RowsCopied.ToString();   
            this.Update();   
        }  
    }   
}  

[dotnetwenlong]

给你一个例子 是将现有的excel文件导入的sql2005里面的 代码如下
/// <summary>
/// 将excel文件导入到dataset中
/// </summary>
/// <param name="fileName">文件路径</param>
private void ImportXlsToData(string fileName)
{
string str= "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + fileName + ";Extended Properties=\"Excel 12.0;HDR=YES\"";
string oledbstr = "select * from [Sheet1$]";
OleDbConnection conn = new OleDbConnection(str);
try
{
conn.Open();
OleDbCommand com = new OleDbCommand(oledbstr, conn);
OleDbDataAdapter adp = new OleDbDataAdapter(com);
DataSet ds = new DataSet();
adp.Fill(ds);
}
catch (Exception err)
{
//显示错误信息
}
finally
{
conn.Close();
}
}
接下来你只需要写一个sql把dataset里的数据insert到你的数据库里就可以了

[叶子]

--从sql server中导入/导出 excel 的基本方法


/*===================  导入/导出 excel 的基本方法 ===================*/

从excel文件中,导入数据到sql数据库中,非常简单,直接用下面的语句:

/*===================================================================*/
--如果接受数据导入的表已存在
insert into 表 select * from 
openrowset(microsoft.jet.oledb.4.0
,excel 5.0;hdr=yes;database=c:test.xls,sheet1$)

--如果导入数据并生成表
select * into 表 from 
openrowset(microsoft.jet.oledb.4.0
,excel 5.0;hdr=yes;database=c:test.xls,sheet1$)


/*===================================================================*/
--如果从sql数据库中,导出数据到excel,如果excel文件已存在,而且已按照要接收的数据创建好表头,就能简单的用:
insert into openrowset(microsoft.jet.oledb.4.0
,excel 5.0;hdr=yes;database=c:test.xls,sheet1$)
select * from 表


--如果excel文件不存在,也能用bcp来导成类excel的文件,注意大小写:
--导出表的情况
exec master..xp_cmdshell bcp 数据库名.dbo.表名 out "c:test.xls" /c -/s"服务器名" /u"用户名" -p"密码"

--导出查询的情况
exec master..xp_cmdshell bcp "select au_fname, au_lname from pubs..authors order by au_lname" queryout "c:test.xls" /c -/s"服务器名" /u"用户名" -p"密码"


/*--说明:
c:test.xls  为导入/导出的excel文件名.
sheet1$      为excel文件的工作表名,一般要加上$才能正常使用.
--*/
--上面已说过,用bcp导出的是类excel文件,其实质为文本文件,

--要导出真正的excel文件.就用下面的方法


/*--数据导出excel
 
 导出表中的数据到excel,包含字段名,文件为真正的excel文件
 ,如果文件不存在,将自动创建文件
 ,如果表不存在,将自动创建表
 基于通用性考虑,仅支持导出标准数据类型
--邹建 2003.10--*/

/*--调用示例

 p_exporttb @tbname=地区资料,@path=c:,@fname=aa.xls
--*/
if exists (select * from dbo.sysobjects where id = object_id(n[dbo].[p_exporttb]) and objectproperty(id, nisprocedure) = 1)
drop procedure [dbo].[p_exporttb]
go

create proc p_exporttb
@tbname sysname,    --要导出的表名
@path nvarchar(1000),   --文件存放目录
@fname nvarchar(250)=  --文件名,默认为表名
as
declare @err int,@src nvarchar(255),@desc nvarchar(255),@out int
declare @obj int,@constr nvarchar(1000),@sql varchar(8000),@fdlist varchar(8000)

--参数检测
if isnull(@fname,)= set @fname=@tbname+.xls

--检查文件是否已存在
if right(@path,1)<> set @path=@path+
create table #tb(a bit,b bit,c bit)
set @sql=@path+@fname
insert into #tb exec master..xp_fileexist @sql

--数据库创建语句
set @sql=@path+@fname
if exists(select 1 from #tb where a=1)
 set @constr=driver={microsoft excel driver (*.xls)};dsn=;readonly=false
       +;create_db="    +;database=+@sql+"


--连接数据库
exec @err=sp_oacreate adodb.connection,@obj out
if @err<>0 goto lberr

exec @err=sp_oamethod @obj,open,null,@constr
if @err<>0 goto lberr

/*--如果覆盖已存在的表,就加上下面的语句
--创建之前先删除表/如果存在的话
select @sql=drop table [+@tbname+]
exec @err=sp_oamethod @obj,execute,@out out,@sql
--*/

--创建表的sql
select @sql=,@fdlist=
select @fdlist=@fdlist+,[+a.name+]
 ,@sql=@sql+,[+a.name+] 
  +case when b.name in(char,nchar,varchar,nvarchar) then
     text(+cast(case when a.length>255 then 255 else a.length end as varchar)+)
   when b.name in(tynyint,int,bigint,tinyint) then int
   when b.name in(smalldatetime,datetime) then datetime
   when b.name in(money,smallmoney) then money
   else b.name end
from syscolumns a left join systypes b on a.xtype=b.xusertype
where b.name not in(image,text,uniqueidentifier,sql_variant,ntext,varbinary,binary,timestamp)
 and object_id(@tbname)=id
select @sql=create table [+@tbname
 +](+substring(@sql,2,8000)+)
 ,@fdlist=substring(@fdlist,2,8000)
exec @err=sp_oamethod @obj,execute,@out out,@sql
if @err<>0 goto lberr

exec @err=sp_oadestroy @obj

--导入数据
set @sql=openrowset(microsoft.jet.oledb.4.0,excel 5.0;hdr=yes
   ;database=+@path+@fname+,[+@tbname+$])

exec(insert into +@sql+(+@fdlist+) select +@fdlist+ from +@tbname)

return

lberr:
 exec sp_oageterrorinfo 0,@src out,@desc out
lbexit:
 select cast(@err as varbinary(4)) as 错误号
  ,@src as 错误源,@desc as 错误描述
 select @sql,@constr,@fdlist
go
--上面是导表的,下面是导查询语句的.

/*--数据导出excel
 
 导出查询中的数据到excel,包含字段名,文件为真正的excel文件
 ,如果文件不存在,将自动创建文件
 ,如果表不存在,将自动创建表
 基于通用性考虑,仅支持导出标准数据类型
--邹建 2003.10--*/

/*--调用示例

 p_exporttb @sqlstr=select * from 地区资料
  ,@path=c:,@fname=aa.xls,@sheetname=地区资料
--*/
if exists (select * from dbo.sysobjects where id = object_id(n[dbo].[p_exporttb]) and objectproperty(id, nisprocedure) = 1)
drop procedure [dbo].[p_exporttb]
go

create proc p_exporttb
@sqlstr varchar(8000),   --查询语句,如果查询语句中使用了order by ,请加上top 100 percent
@path nvarchar(1000),   --文件存放目录
@fname nvarchar(250),   --文件名
@sheetname varchar(250)=  --要创建的工作表名,默认为文件名
as 
declare @err int,@src nvarchar(255),@desc nvarchar(255),@out int
declare @obj int,@constr nvarchar(1000),@sql varchar(8000),@fdlist varchar(8000)

--参数检测
if isnull(@fname,)= set @fname=temp.xls
if isnull(@sheetname,)= set @sheetname=replace(@fname,.,#)

--检查文件是否已存在
if right(@path,1)<> set @path=@path+
create table #tb(a bit,b bit,c bit)
set @sql=@path+@fname
insert into #tb exec master..xp_fileexist @sql

--数据库创建语句
set @sql=@path+@fname
if exists(select 1 from #tb where a=1)
 set @constr=driver={microsoft excel driver (*.xls)};dsn=;readonly=false
       +;create_db="    +;database=+@sql+"

--连接数据库
exec @err=sp_oacreate adodb.connection,@obj out
if @err<>0 goto lberr

exec @err=sp_oamethod @obj,open,null,@constr
if @err<>0 goto lberr

--创建表的sql
declare @tbname sysname
set @tbname=##tmp_+convert(varchar(38),newid())
set @sql=select * into [+@tbname+] from(+@sqlstr+) a
exec(@sql)

select @sql=,@fdlist=
select @fdlist=@fdlist+,[+a.name+]
 ,@sql=@sql+,[+a.name+] 
  +case when b.name in(char,nchar,varchar,nvarchar) then
     text(+cast(case when a.length>255 then 255 else a.length end as varchar)+)
   when b.name in(tynyint,int,bigint,tinyint) then int
   when b.name in(smalldatetime,datetime) then datetime
   when b.name in(money,smallmoney) then money
   else b.name end
from tempdb..syscolumns a left join tempdb..systypes b on a.xtype=b.xusertype
where b.name not in(image,text,uniqueidentifier,sql_variant,ntext,varbinary,binary,timestamp)
 and a.id=(select id from tempdb..sysobjects where name=@tbname)
select @sql=create table [+@sheetname
 +](+substring(@sql,2,8000)+)
 ,@fdlist=substring(@fdlist,2,8000)

exec @err=sp_oamethod @obj,execute,@out out,@sql
if @err<>0 goto lberr

exec @err=sp_oadestroy @obj

--导入数据
set @sql=openrowset(microsoft.jet.oledb.4.0,excel 5.0;hdr=yes
   ;database=+@path+@fname+,[+@sheetname+$])

exec(insert into +@sql+(+@fdlist+) select +@fdlist+ from [+@tbname+])

set @sql=drop table [+@tbname+]
exec(@sql)
return

lberr:
 exec sp_oageterrorinfo 0,@src out,@desc out
lbexit:
 select cast(@err as varbinary(4)) as 错误号
  ,@src as 错误源,@desc as 错误描述
 select @sql,@constr,@fdlist
go

[moonwrite]

Google : NPOI

[hongjiaoli]

// 1、如何从Excel中获得工作单（sheetname）：
//获得Excel中的所有sheetname。
public ArrayList ExcelSheetName ( string filepath )
{
ArrayList al = new ArrayList ();
string strConn;
strConn = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + filepath + ";Extended Properties=Excel 8.0;";
OleDbConnection conn = new OleDbConnection(strConn);
conn.Open ();
DataTable sheetNames = conn.GetOleDbSchemaTable
(System.Data.OleDb.OleDbSchemaGuid.Tables,new object[]{null,null,null,"TABLE"});
conn.Close ();
foreach ( DataRow dr in sheetNames.Rows )
{
al.Add ( dr[2] );
}
return al;
}

// 2、Excel数据导入到数据库中：
//该方法实现从Excel中导出数据到DataSet中，其中filepath为Excel文件的绝对路径，sheetname为表示那个Excel表；
public DataSet ExcelDataSource(string filepath, string sheetname)
{
string strConn;
strConn = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + filepath + ";Extended Properties=Excel 8.0;";
OleDbConnection conn = new OleDbConnection(strConn);
OleDbDataAdapter oada = new OleDbDataAdapter("select * from [" + sheetname + "$]", strConn);
DataSet ds = new DataSet();
oada.Fill(ds);
return ds;
}

// 导入 按钮
protected void imgBtnInsert_Click(object sender, ImageClickEventArgs e)
{
//1、首先获得Excel表的绝对路径 和 Excel表格的名称
string fullPath = FileUpload1.PostedFile.FileName;
string fileName = FileUpload1.FileName.ToString();
//2、获得sheetname
ArrayList list= ExcelSheetName(fullPath);
string names="";
for (int i = 0; i < list.Count; i++)
{
names += list[i] + ",";
}
ExcelDataSource(fullPath,"Student");
Dbclass mc = new Dbclass();
string sql = "insert into Student select * from OPENROWSET('MICROSOFT.JET.OLEDB.4.0' , 'Excel 5.0;HDR=YES;DATABASE="+fullPath+"',Student$)"; //
//往数据库中插入数据
mc.ReturnValue(sql);
Response.Write("<script>alert('操作完毕，Excel表格的数据已存入数据库中！')</script>");
}


本文来自CSDN博客，转载请标明出处：http://blog.csdn.net/hongjiaoli/archive/2010/03/31/5437881.aspx

[guyehanxinlei]

标记一下!

[班门弄斧]

谢谢大家的指点，我会一一领会：）

[zshdy]

不用写这么长的程序，把用企业管理器将excel先导入数据库,再使用程序作数据表的相关操作就行了

[wjhx]

http://code.google.com/p/excellibrary/

//create new xls file 
string file = "C:\\newdoc.xls"; 
Workbook workbook = new Workbook(); 
Worksheet worksheet = new Worksheet("First Sheet"); 
worksheet.Cells[0, 1] = new Cell((short)1); 
worksheet.Cells[2, 0] = new Cell(9999999); 
worksheet.Cells[3, 3] = new Cell((decimal)3.45); 
worksheet.Cells[2, 2] = new Cell("Text string"); 
worksheet.Cells[2, 4] = new Cell("Second string"); 
worksheet.Cells[4, 0] = new Cell(32764.5, "#,##0.00"); 
worksheet.Cells[5, 1] = new Cell(DateTime.Now, @"YYYY\-MM\-DD"); 
worksheet.Cells.ColumnWidth[0, 1] = 3000; 
workbook.Worksheets.Add(worksheet); 
workbook.Save(file);
  
// open xls file 
Workbook book = Workbook.Load(file); 
Worksheet sheet = book.Worksheets[0];   
// traverse cells  
foreach (Pair<Pair<int, int>, Cell> cell in sheet.Cells)  
{      
dgvCells[cell.Left.Right, cell.Left.Left].Value = cell.Right.Value;  }   
// traverse rows by Index  
for (int rowIndex = sheet.Cells.FirstRowIndex;          rowIndex <= sheet.Cells.LastRowIndex; rowIndex++)  
{      
Row row = sheet.Cells.GetRow(rowIndex);      
for (int colIndex = row.FirstColIndex;          
colIndex <= row.LastColIndex; colIndex++)      
{          
Cell cell = row.GetCell(colIndex);      
}  
}

[zuorihecao]

不错不错，学习了