如何将带有格式的文本保存到数据库中？

有三个方法:\x0d\x0a1.在上传袄数据库是时候,写一段格式代码\x0d\x0a% \x0d\x0aFunction Deal(exp1) \x0d\x0adim exp2 \x0d\x0aexp2=Replace(exp2,Chr(13),"br

向数据库中保存不同类型的文件，和在数据库中保存图片是一样的。就是向数据库以byte形式存入

向数据库中保存不同类型的文件，和在数据库中保存图片是一样的。就是向数据库以byte形式存入

然后就是写入数据库，代码如下：

FileInfo fi = new FileInfo( txtFileName.Text )// Replace with your file name

        if ( fi.Exists

        {

         byte[] bData = null

int nNewFileID = 0

// Read file data into buffer

using ( FileStream fs = fi.OpenRead() )

            {

bData = new byte[fi.Length]

int nReadLength = fs.Read( bData,0, (int)(fi.Length) )

}

// Add file info into DB

string strQuery = "INSERT INTO FileInfo "

+ " ( FileName, FullName, FileData ) "

+ " VALUES "

+ " ( @FileName, @FullName, @FileData ) "

+ " SELECT @@IDENTITY AS 'Identity'"

SqlCommand sqlComm = new SqlCommand( strQuery, sqlConn )

sqlComm.Parameters.Add( "@FileName", fi.Name )

sqlComm.Parameters.Add( "@FullName", fi.FullName )

sqlComm.Parameters.Add( "@FileData", bData )

            // Get new file ID

SqlDataReader sqlReader = sqlComm.ExecuteReader()

if( sqlReader.Read() )

{

nNewFileID = int.Parse(sqlReader.GetValue(0).ToString())

}

            sqlReader.Close()

            sqlComm.Dispose()

if( nNewFileID >0 )

            {

                // Add new item in list view

ListViewItem itmNew = lsvFileInfo.Items.Add( fi.Name )

itmNew.Tag = nNewFileID

            }

        }

4.而读出的代码如下：

// Get new file name

string strFullName =

dlgFBSave.SelectedPath

if( strFullName[strFullName.Length - 1] != '//'

)

strFullName

+= @"/"

strFullName +=

lsvFileInfo.SelectedItems[0].Text

string strQuery = "SELECT FileData FROM FileInfo

"

+

" WHERE FileID = " + lsvFileInfo.SelectedItems[0].Tag.ToString()

SqlDataAdapter

sqlDAdapter = new SqlDataAdapter(strQuery,sqlConn)

DataSet

sqlRecordSet = new DataSet()

byte[] bData = null

//Get file data from DB

try

{

sqlDAdapter.Fill(

sqlRecordSet, "FileInfo" )

foreach( DataRow dr in sqlRecordSet.Tables["FileInfo"].Rows)

{

if( dr["FileData"] != DBNull.Value )

bData

= ( byte[] )dr["FileData"]

}

}

catch(SqlException sqlErr)

{

MessageBox.Show(

sqlErr.Message )

}

catch

{

MessageBox.Show(

"Failed to read data from DB!" )

}

sqlRecordSet.Dispose()

sqlDAdapter.Dispose()

if( bData != null )

{

// Save file

FileInfo

fi = new FileInfo( strFullName

)

if( !fi.Exists )

{

//Create the file.

using (FileStream fs = fi.Create())

{

fs.Write(

bData, 0, bData.Length)

}

}

else

{

//Create the file.

using (FileStream fs =

fi.OpenWrite())

{

fs.Write(

bData, 0, bData.Length)

}

}

}

1、用SQL SERVER的话，用TEXT数据类型，可以存2,147,483,647个字符，足够存放很长的文章了。

2、如果是Oracle数据库的话，可以用clob字段类型。

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