/**//*--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(引用请保留此信息)--*/
/**//*--调用示例
p_exporttb @sqlstr='select * from 地区资料'
,@path='c:',@fname='aa.xls',@sheetname='地区资料'
--*/
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,'.','#')
--检查文件是否已经存在
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="'+@sql+'";DBQ='+@sql
else
set @constr='Provider=Microsoft.Jet.OLEDB.4.0;Extended Properties="Excel 8.0;HDR=YES'
+';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 like '%char'
then case when a.length>255 then 'memo'
else 'text('+cast(a.length as varchar)+')' end
when b.name like '%int' or b.name='bit' then 'int'
when b.name like '%datetime' then 'datetime'
when b.name like '%money' then 'money'
when b.name like '%text' then 'memo'
else b.name end
FROM tempdb..syscolumns a left join tempdb..systypes b on a.xtype=b.xusertype
where b.name not in('image','uniqueidentifier','sql_variant','varbinary','binary','timestamp')
and a.id=(select id from tempdb..sysobjects where name=@tbname)
if @@rowcount=0 return
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 8.0;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
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(引用请保留此信息)--*/
/**//*--调用示例
p_exporttb @sqlstr='select * from 地区资料'
,@path='c:',@fname='aa.xls',@sheetname='地区资料'
--*/
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,'.','#')
--检查文件是否已经存在
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="'+@sql+'";DBQ='+@sql
else
set @constr='Provider=Microsoft.Jet.OLEDB.4.0;Extended Properties="Excel 8.0;HDR=YES'
+';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 like '%char'
then case when a.length>255 then 'memo'
else 'text('+cast(a.length as varchar)+')' end
when b.name like '%int' or b.name='bit' then 'int'
when b.name like '%datetime' then 'datetime'
when b.name like '%money' then 'money'
when b.name like '%text' then 'memo'
else b.name end
FROM tempdb..syscolumns a left join tempdb..systypes b on a.xtype=b.xusertype
where b.name not in('image','uniqueidentifier','sql_variant','varbinary','binary','timestamp')
and a.id=(select id from tempdb..sysobjects where name=@tbname)
if @@rowcount=0 return
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 8.0;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
4.--在.net中导出到Excel的简单实例.
(1).添加引用Microsoft Excel 11.0 Object Library (在COM中)
(2).在web.config的上<system.web>里加
<identity impersonate="true"/>
//此句为了使用户能在本地打开文档,identify属性规定了身份验证的模式,一般情况下为false,这样安全性较高
(3).在Text.aspx上加Button1控件
(4).在cs页面添加 using Microsoft.Office.Interop.Excel;
(5).添加单击事件,在这里处理将数据库中的数据导入excel,代码如下:
//定义方法GetData(),返回一个数据表
private System.Data.DataTable GetData()
{
SqlConnection conn= new SqlConnection(@"Server=XJIE;Initial Catalog=Northwind;Uid=sa;Pwd=xjie;");
SqlDataAdapter adapter= new SqlDataAdapter("select CompanyName 用户名,ContactTitle 联系主题,Address 住宅地址,ContactName 联系人,Phone 电话,City 城市 from Customers order by CustomerID desc",conn);
DataSet ds= new DataSet();
try
{
adapter.Fill(ds,"Customer");
}
catch(Exception ex)
{
MessageBox.Show(ex.ToString());
}
return ds.Tables[0];
}
private void Button1_Click(object sender, System.EventArgs e)
{
Application excel= new Application();
int rowIndex=1;
int colIndex=0;
excel.Application.Workbooks.Add(true);
DataTable table=GetData();
//将所得到的表的列名,赋值给单元格
foreach(DataColumn col in table.Columns)
{
colIndex++;
excel.Cells[1,colIndex]=col.ColumnName;
}
//同样方法处理数据
foreach(DataRow row in table.Rows)
{
rowIndex++;
colIndex=0;
foreach(DataColumn col in table.Columns)
{
colIndex++;
excel.Cells[rowIndex,colIndex]=row[col.ColumnName].ToString();
}
}
//不可见,即后台处理
excel.Visible=true;
}
(1).添加引用Microsoft Excel 11.0 Object Library (在COM中)
(2).在web.config的上<system.web>里加
<identity impersonate="true"/>
//此句为了使用户能在本地打开文档,identify属性规定了身份验证的模式,一般情况下为false,这样安全性较高
(3).在Text.aspx上加Button1控件
(4).在cs页面添加 using Microsoft.Office.Interop.Excel;
(5).添加单击事件,在这里处理将数据库中的数据导入excel,代码如下:
//定义方法GetData(),返回一个数据表
private System.Data.DataTable GetData()
{
SqlConnection conn= new SqlConnection(@"Server=XJIE;Initial Catalog=Northwind;Uid=sa;Pwd=xjie;");
SqlDataAdapter adapter= new SqlDataAdapter("select CompanyName 用户名,ContactTitle 联系主题,Address 住宅地址,ContactName 联系人,Phone 电话,City 城市 from Customers order by CustomerID desc",conn);
DataSet ds= new DataSet();
try
{
adapter.Fill(ds,"Customer");
}
catch(Exception ex)
{
MessageBox.Show(ex.ToString());
}
return ds.Tables[0];
}
private void Button1_Click(object sender, System.EventArgs e)
{
Application excel= new Application();
int rowIndex=1;
int colIndex=0;
excel.Application.Workbooks.Add(true);
DataTable table=GetData();
//将所得到的表的列名,赋值给单元格
foreach(DataColumn col in table.Columns)
{
colIndex++;
excel.Cells[1,colIndex]=col.ColumnName;
}
//同样方法处理数据
foreach(DataRow row in table.Rows)
{
rowIndex++;
colIndex=0;
foreach(DataColumn col in table.Columns)
{
colIndex++;
excel.Cells[rowIndex,colIndex]=row[col.ColumnName].ToString();
}
}
//不可见,即后台处理
excel.Visible=true;
}