如何在经典 ASP 中将字符串转换为字节数组答案

【问题标题】：how to convert string to byte array in Classic ASP如何在经典 ASP 中将字符串转换为字节数组
【发布时间】：2020-09-21 14:39:04
【问题描述】：

我正在尝试以经典 ASP 下载文件。请找到以下代码

set fileDownloadResponse = WebService_FileDownload(FileUri.Value)
Response.ContentType = admindata("FileType")//type getting from SQL column
Response.Addheader "Content-Disposition", "attachment;filename=""" & FileName & """"
Response.BinaryWrite(fileDownloadResponse.value)//**fileDownloadResponse.value**

我从代码中以Byte[] 返回，但是当它进入 ASP 页面时，它显示为字符串...我想将字符串转换为字节数组并将该数组传递给Response.BinaryWrite(need to pass byte)。

【问题讨论】：

标签： vbscript asp-classic

【解决方案1】：

尝试使用ADO Stream Object

Const adTypeBinary = 1
Response.Buffer = False
Dim objStream
Set objStream = Server.CreateObject("ADODB.Stream")
objStream.Type = adTypeBinary
objStream.Open
' depends on what fileDownloadResponse is 
' you might need to use .Read(), .ReadText() or .LoadFromFile()
objStream.ReadText fileDownloadResponse.value 
Response.ContentType = "application/x-unknown" ' what kind of file it is?
Response.Addheader "Content-Disposition", "attachment; filename=""" & FileName & """"
Response.BinaryWrite objStream.Read
objStream.Close
Set objStream = Nothing

【讨论】：

【解决方案2】：

private HttpResponseMessage DownloadFileResponse( HttpStatusCode statusCode, Byte[] ContentArray )
        {
            HttpResponseMessage response = new HttpResponseMessage();              
            response.StatusCode = statusCode;              
            response.Content = new ByteArrayContent( ContentArray );//here just convert into byte array content and in Response.BinaryWrite (content) pass this content here to get as byte to doqnlaod it.
            return response;      
        }

【讨论】：