asp.net从数据库导出数据到word、excel、txt文本文件

 

using System; 
using System.Data; 
using System.Drawing; 
using System.Data.SqlClient; 
using Excel; 
using Word; 
using System.IO; 
namespace Common 
{ 
/// <summary> 
/// 把数据导入到.doc、.txt、.xls文件中 
/// </summary> 
public class Export 
{ 
private const string DATAWORDPATH = @"C:\folder\doc\datadoc\"; 
private const string IMAGEWORDPATH = @"C:\folder\doc\imagedoc\"; 
private const string IMAGEPATH = @"C:\folder\image\"; 
private const string EXCELPATH = @"C:\folder\excel\"; 
private const string TXTPATH = @"C:\folder\txt\"; 
private const string IMAGEPOSTFIX = ".bmp"; 
private const string WORDPOSTFIX = ".doc"; 
private const string EXCELPOSTFIX = ".xls"; 
private const string TXTPOSTFIX = ".txt"; 
private const int DATADISTANCE = 5; 
private const int TABDISTANCE = 8;

public Export() 
{ 
// 
// TODO: 在此处添加构造函数逻辑 
// 
} 
/// <summary> 
/// 获得数据集Dataset--------------------------------用于调试 
/// </summary> 
/// <returns>Dataset</returns> 
public DataSet GetData() 
{ 
try 
{ 
string sConnectionString; 
sConnectionString = "workstation id=GUOFU;packet size=4096;user id=sa;data source=GUOFU;persist security info=True;initial catalog=YC;password=sc"; 
SqlConnection objConn = new SqlConnection(sConnectionString); 
objConn.Open(); 
SqlDataAdapter daPoint = new SqlDataAdapter("Select * From Point", objConn); 
DataSet dsYC = new DataSet("YC"); 
daPoint.FillSchema(dsYC,SchemaType.Mapped, "Point"); 
daPoint.Fill(dsYC,"Point"); 
daPoint = new SqlDataAdapter("Select * From Employee", objConn); 
daPoint.FillSchema(dsYC,SchemaType.Mapped, "Employee"); 
daPoint.Fill(dsYC,"Employee"); 
return dsYC; 
} 
catch(Exception ex) 
{ 
throw new Exception(ex.Message); 
}

}

/// <summary> 
/// 把数据文件导入到.xls文件 
/// </summary> 
/// <param name="ds"></param> 
public void ExportToExcel(DataSet ds) 
{

if(ds.Tables.Count!=0) 
{ 
//生成.xls文件完整路径名 
string tempFileName = GetTempFileName(); 
object filename = EXCELPATH+tempFileName+EXCELPOSTFIX; 
object Nothing = System.Reflection.Missing.Value;

//创建excel文件,文件名用系统时间生成精确到毫秒 
Excel.Application myExcel = new Excel.ApplicationClass(); 
myExcel.Application.Workbooks.Add(Nothing);

try 
{ 
//把Dataset中的数据插入excel文件中 
int totalCount = 0; 
for(int k =0;k<ds.Tables.Count;k++) 
{ 
int row = ds.Tables[k].Rows.Count; 
int column = ds.Tables[k].Columns.Count;

for(int i = 0;i<column;i++) 
{ 
myExcel.Cells[totalCount+2,1+i] = ds.Tables[k].Columns[i].ColumnName; 
}

for(int i = 0;i<row;i++) 
{ 
for(int j =0;j<column;j++) 
{ 
myExcel.Cells[totalCount+3+i,1+j] = "'" + ds.Tables[k].Rows[i][j].ToString(); 
} 
} 
totalCount = totalCount + row +4; 
}

try 
{ 
//保存excel文件到指定的目录下,文件名用系统时间生成精确到毫秒 
myExcel.ActiveWorkbook._SaveAs(filename,Nothing,Nothing,Nothing,Nothing,Nothing,XlSaveAsAccessMode.xlExclusive,Nothing,Nothing,Nothing,Nothing); 
} 
catch 
{ 
System.Windows.Forms.MessageBox.Show("系统找不到指定目录下的文件: "+EXCELPATH+tempFileName+EXCELPOSTFIX); 
return; 
} 
//让生成的excel文件可见 
myExcel.Visible = true; 
} 
catch(Exception e) 
{ 
System.Windows.Forms.MessageBox.Show("向excel文件中写入数据出错: " + e.Message); 
} 
} 
else 
{ 
System.Windows.Forms.MessageBox.Show("No Data"); 
} 
}


/// <summary> 
/// 把数据导入到.doc文件 
/// </summary> 
/// <param name="ds"></param> 
public void ExportToWord(DataSet ds) 
{ 
if(ds.Tables.Count!=0) 
{ 
string tempFileName = null; 
object filename = null;

object tableBehavior = Word.WdDefaultTableBehavior.wdWord9TableBehavior; 
object autoFitBehavior = Word.WdAutoFitBehavior.wdAutoFitFixed;

object unit = Word.WdUnits.wdStory; 
object extend = System.Reflection.Missing.Value; 
object breakType = (int)Word.WdBreakType.wdSectionBreakNextPage;

object count = 1; 
object character = Word.WdUnits.wdCharacter;

object Nothing = System.Reflection.Missing.Value;

try 
{ 
tempFileName = GetTempFileName();

//生成.doc文件完整路径名 
filename = DATAWORDPATH+tempFileName+WORDPOSTFIX;

//创建一个word文件,文件名用系统时间生成精确到毫秒 
Word.Application myWord= new Word.ApplicationClass(); 
Word._Document myDoc = new Word.DocumentClass(); 
myDoc = myWord.Documents.Add(ref Nothing,ref Nothing,ref Nothing,ref Nothing); 
myDoc.Activate();

//向把dataset中的表插入到word的文件中

for(int totalTable = 0;totalTable<ds.Tables.Count;totalTable++) 
{ 
myWord.Application.Selection.TypeText(ds.Tables[totalTable].TableName+"表的数据如下"); 
myWord.Application.Selection.TypeParagraph(); 
myWord.Application.Selection.TypeParagraph(); 
Word.Range para = myWord.Application.Selection.Range; 
myDoc.Tables.Add(para,ds.Tables[totalTable].Rows.Count+1,ds.Tables[totalTable].Columns.Count,ref tableBehavior,ref autoFitBehavior); 
for(int column = 0; column<ds.Tables[totalTable].Columns.Count;column++) 
{ 
myDoc.Tables.Item(totalTable+1).Cell(1,column+1).Range.InsertBefore(ds.Tables[0].Columns[column].ColumnName.Trim()); 
} 
for(int row = 0;row<ds.Tables[totalTable].Rows.Count;row++) 
{ 
for(int column = 0;column<ds.Tables[totalTable].Columns.Count;column++) 
{ 
myDoc.Tables.Item(totalTable+1).Cell(row+2,column+1).Range.InsertBefore(ds.Tables[totalTable].Rows[row][column].ToString().Trim()); 
} 
} 
myWord.Application.Selection.EndKey(ref unit,ref extend); 
myWord.Application.Selection.TypeParagraph(); 
myWord.Application.Selection.TypeParagraph(); 
myWord.Application.Selection.InsertBreak(ref breakType); 
} 
myWord.Application.Selection.TypeBackspace(); 
myWord.Application.Selection.Delete(ref character,ref count); 
myWord.Application.Selection.HomeKey(ref unit,ref extend);

//保存word文件到指定的目录下 
try 
{ 
myDoc.SaveAs(ref filename,ref Nothing,ref Nothing,ref Nothing,ref Nothing,ref Nothing,ref Nothing,ref Nothing,ref Nothing,ref Nothing,ref Nothing); 
myWord.Visible = true; 
} 
catch 
{ 
System.Windows.Forms.MessageBox.Show("系统找不到指定目录下的文件: "+DATAWORDPATH+tempFileName+WORDPOSTFIX);
return; 
} 
//让生成的excel文件可见 
myWord.Visible = true; 
} 
catch(Exception ex) 
{ 
System.Windows.Forms.MessageBox.Show("向word文件中写入数据出错: " + ex.Message); 
} 
} 
else 
{ 
System.Windows.Forms.MessageBox.Show("No Data"); 
} 
} 
/// <summary> 
/// 把图片文件导入到.doc文件 
/// </summary> 
/// <param name="bp"></param> 
public void ExportToWord(Bitmap bp) 
{ 
string tempFileName = null; 
string bmpPath = null; 
object filename = null; 
object Nothing = null; 
tempFileName = GetTempFileName();


//生成.bmp文件完整路径名 
bmpPath = IMAGEPATH+tempFileName+IMAGEPOSTFIX;

//生成.doc文件完整路径名 
filename = IMAGEWORDPATH+tempFileName+WORDPOSTFIX; 
Nothing = System.Reflection.Missing.Value;

//创建一个word文件,文件名用系统时间生成精确到毫秒 
Word.Application myWord= new Word.ApplicationClass(); 
Word._Document myDoc = new Word.DocumentClass(); 
myDoc = myWord.Documents.Add(ref Nothing,ref Nothing,ref Nothing,ref Nothing);

try 
{ 
//把bitmap对象保存到系统所生成文件完整路径中 
bp.Save(bmpPath); 
} 
catch 
{ 
System.Windows.Forms.MessageBox.Show("系统找不到指定目录下的文件: "+bmpPath); 
return; 
}

try 
{ 
//往word文件中插入图片 
myDoc.InlineShapes.AddPicture(bmpPath,ref Nothing,ref Nothing,ref Nothing); 
} 
catch 
{ 
System.Windows.Forms.MessageBox.Show("系统找不到指定目录下的文件: "+bmpPath); 
return; 
}

try 
{ 
//保存word文件到指定的目录下 
myDoc.SaveAs(ref filename,ref Nothing,ref Nothing,ref Nothing,ref Nothing,ref Nothing,ref Nothing,ref Nothing,ref Nothing,ref Nothing,ref Nothing); 
} 
catch 
{ 
System.Windows.Forms.MessageBox.Show("系统找不到指定目录下的文件: "+IMAGEWORDPATH+tempFileName+WORDPOSTFIX); 
return; 
} 
//让生成的word文件可见 
myWord.Visible = true; 
}


/// <summary> 
/// 把数据文件导入到.txt文件 
/// </summary> 
/// <param name="ds"></param> 
public void ExportToTxt(DataSet ds) 
{

if(ds.Tables.Count!=0) 
{ 
string tempFileName = null; 
tempFileName = GetTempFileName();


//创建一个.txt文件,文件名用系统时间生成精确到毫秒 
FileInfo file = new FileInfo(TXTPATH+tempFileName+TXTPOSTFIX); 
StreamWriter textFile = null; 
try 
{ 
textFile = file.CreateText(); 
} 
catch 
{ 
System.Windows.Forms.MessageBox.Show("系统找不到指定目录下的文件: "+TXTPATH+tempFileName+TXTPOSTFIX); 
return; 
}

//把Dataset中的数据写入.txt文件中 
for(int totaltable = 0;totaltable<ds.Tables.Count;totaltable++) 
{ 
//统计dataset中当前表的行数 
int row = ds.Tables[totaltable].Rows.Count;

//统计dataset中当前表的列数 
int column = ds.Tables[totaltable].Columns.Count;

//用于统计当前表中每列记录中字符数最长的字符串的长度之和 
int totalLength = 0;

//用于统计标题的长度(dataset中的表名的length+"表的数据如下"的length) 
int titleLength = 0;

//统计每列记录中字符数最长的字符串的长度 
int[] columnLength = new int[column]; 
for(int i = 0;i<column;i++) 
{ 
columnLength[i] = ds.Tables[totaltable].Columns[i].ColumnName.ToString().Length; 
} 
for(int i = 0;i<row;i++) 
{ 
for(int j = 0;j<column;j++) 
{ 
if(ds.Tables[totaltable].Rows[i][j].ToString().Length>columnLength[j]) 
{ 
columnLength[j]=ds.Tables[totaltable].Rows[i][j].ToString().Length; 
} 
} 
}


//统计当前表中每列记录中字符数最长的字符串的长度之和 
for(int i = 0;i<column;i++) 
{ 
totalLength = totalLength+columnLength[i]+DATADISTANCE; 
} 
totalLength = totalLength+2*TABDISTANCE-DATADISTANCE;

//统计标题的长度(dataset中的当前表名的length+"表的数据如下"的length) 
titleLength = ds.Tables[totaltable].TableName.ToString().Length+"表的数据如下".Length*2;

//把标题写入.txt文件中 
for(int i = 0;i<(int)((totalLength-titleLength)/2);i++) 
{ 
textFile.Write(' '); 
} 
textFile.Write(ds.Tables[totaltable].TableName+"表的数据如下"); 
textFile.WriteLine(); 
for(int i = 0;i<totalLength;i++) 
{ 
textFile.Write('*'); 
} 
textFile.WriteLine(); 
textFile.Write("\t"); 
//把dataset中当前表的字段名写入.txt文件中 
for(int i = 0;i<column;i++) 
{ 
textFile.Write(ds.Tables[totaltable].Columns[i].ColumnName.ToString()); 
for(int k = 0;k<columnLength[i]-ds.Tables[totaltable].Columns[i].ColumnName.ToString().Length+DATADISTANCE;k++) 
{ 
textFile.Write(' '); 
} 
} 
textFile.WriteLine(); 
for(int i = 0;i<totalLength;i++) 
{ 
textFile.Write('-'); 
} 
textFile.WriteLine(); 
textFile.Write("\t");

//把dataset中当前表的数据写入.txt文件中 
for(int i = 0;i<row;i++) 
{ 
for(int j = 0;j<column;j++) 
{ 
textFile.Write(ds.Tables[totaltable].Rows[i][j].ToString()); 
for(int k = 0;k<columnLength[j]-ds.Tables[totaltable].Rows[i][j].ToString().Length+DATADISTANCE;k++) 
{ 
textFile.Write(' '); 
} 
} 
textFile.WriteLine(); 
textFile.Write("\t"); 
} 
textFile.WriteLine(); 
for(int i = 0;i<totalLength;i++) 
{ 
textFile.Write('-'); 
} 
textFile.WriteLine(); 
textFile.WriteLine(); 
textFile.WriteLine(); 
}

//关闭当前的StreamWriter流 
textFile.Close(); 
System.Windows.Forms.MessageBox.Show("数据文件已保存到"+" "+file.FullName); 
} 
else 
{ 
System.Windows.Forms.MessageBox.Show("No Data"); 
} 
}

public string GetTempFileName() 
{ 
return DateTime.Now.ToString("yyyyMMddhhmmssfff"); 
} 
} 
}

补充:使用以上方法必须对dcom进行配置,给用户使用office的权限。 
具体配置方法如下: 
1:在服务器上安装office的Excel软件. 
2:在"开始"->"运行"中输入dcomcnfg.exe启动"组件服务" 
3:依次双击"组件服务"->"计算机"->"我的电脑"->"DCOM配置" 
4:在"DCOM配置"中找到"Microsoft Excel 应用程序",在它上面点击右键,然后点击"属性",弹出"Microsoft Excel 应用程序属性"对话框 
5:点击"标识"标签,选择"交互式用户" 
6:点击"安全"标签,在"启动和激活权限"上点击"自定义",然后点击对应的"编辑"按钮,在弹出的"安全性"对话框中填加一个"NETWORK SERVICE"用户(注意要选择本计算机名),并给它赋予"本地启动"和"本地激活"权限. 
7:依然是"安全"标签,在"访问权限"上点击"自定义",然后点击"编辑",在弹出的"安全性"对话框中也填加一个"NETWORK SERVICE"用户,然后赋予"本地访问"权限. 
这样,我们便配置好了相应的Excel的DCOM权限. 
注意:我是在WIN2003上配置的,在2000上,是配置ASPNET用户

若不进行配置会出现错误 
检索 COM 类工厂中 CLSID 为 {00024500-0000-0000-C000-000000000046} 的组件时失败,原因是出现以下错误: 80070005。 
原因是用户没有使用Excel的权限。 
导出到word同样要配置使用word的权限。 
继续补充: 导出到txt我用了上面的方法有问题, 
try 
{ 
textFile = file.CreateText(); 
} 
catch 
{ 
System.Windows.Forms.MessageBox.Show("系统找不到指定目录下的文件: "+TXTPATH+tempFileName+TXTPOSTFIX); 
return; 
} 
总是在这里跳到catch里面。导出到word,excel都能用,继续研究txt的使用方法。

posted @ 2015-01-17 19:15  海蓝驿站  阅读(284)  评论(0)    收藏  举报