asp下用ADODB.Stream代替FSO读取文本文件
编程学习 2021-07-05 10:58www.dzhlxh.cn编程入门
在ASP中，我们常用Scripting.FileSystemObject组件来读写文本文件，但它有一个缺点是对编码支持不足，比如我们想读写一个utf-8文本文件，FSO就很难办到了，这时我们就需要使用Adodb.Stream组件来代替它。
'文件内容读取.
Function LoadFile(ByVal File)
Dim objStream
On Error Resume Next
Set objStream = Server.CreateObject("ADODB.Stream")
If Err.Number=-2147221005 Then
Response.Write "<div align='center'>非常遗憾,您的主机不支持ADODB.Stream,不能使用本程序</div>"
Err.Clear
Response.End
End If
With objStream
.Type = 2
.Mode = 3
.Open
.LoadFromFile Server.MapPath(File)
If Err.Number<>0 Then
Response.Write "<div align='center'>文件<font color='#ff0000'>"&File&"</font>无法被打开，请检查是否存在!</font></div>"
Err.Clear
Response.End
End If
.Charset = "GB2312"
.Position = 2
LoadFile = .ReadText
.Close
End With
Set objStream = Nothing
End Function
'存储内容到文件
Sub SaveToFile(ByVal strBody,ByVal File)
Dim objStream
On Error Resume Next
Set objStream = Server.CreateObject("ADODB.Stream")
If Err.Number=-2147221005 Then
Response.Write "<div align='center'>非常遗憾,您的主机不支持ADODB.Stream,不能使用本程序</div>"
Err.Clear
Response.End
End If
With objStream
.Type = 2
.Open
.Charset = "GB2312"
.Position = objStream.Size
.WriteText = strBody
.SaveToFile Server.MapPath(File),2
.Close
End With
Set objStream = Nothing
End Sub
调用示例
<%
WriteFile "aaa.txt", "www.jb51.net", "utf-8"
Response.Write ReadFile("aaa.txt", "utf-8")
%>
代码如下:
Function LoadFile(ByVal File)
Dim objStream
On Error Resume Next
Set objStream = Server.CreateObject("ADODB.Stream")
If Err.Number=-2147221005 Then
Response.Write "<div align='center'>非常遗憾,您的主机不支持ADODB.Stream,不能使用本程序</div>"
Err.Clear
Response.End
End If
With objStream
.Type = 2
.Mode = 3
.Open
.LoadFromFile Server.MapPath(File)
If Err.Number<>0 Then
Response.Write "<div align='center'>文件<font color='#ff0000'>"&File&"</font>无法被打开，请检查是否存在!</font></div>"
Err.Clear
Response.End
End If
.Charset = "GB2312"
.Position = 2
LoadFile = .ReadText
.Close
End With
Set objStream = Nothing
End Function
'存储内容到文件
代码如下:
Sub SaveToFile(ByVal strBody,ByVal File)
Dim objStream
On Error Resume Next
Set objStream = Server.CreateObject("ADODB.Stream")
If Err.Number=-2147221005 Then
Response.Write "<div align='center'>非常遗憾,您的主机不支持ADODB.Stream,不能使用本程序</div>"
Err.Clear
Response.End
End If
With objStream
.Type = 2
.Open
.Charset = "GB2312"
.Position = objStream.Size
.WriteText = strBody
.SaveToFile Server.MapPath(File),2
.Close
End With
Set objStream = Nothing
End Sub
调用示例
代码如下:
<%
WriteFile "aaa.txt", "www.jb51.net", "utf-8"
Response.Write ReadFile("aaa.txt", "utf-8")
%>