B4J Question JRDC2 Question

[NikB4x]

Hi All,
I'm trying to add the file download handler to JRDC2:
with this code on linux server:

'Handler class
Sub Class_Globals
    
End Sub

Public Sub Initialize
    
End Sub

Sub Handle(req As ServletRequest, resp As ServletResponse)
    Dim out As OutputStream
    Dim name As String = req.GetParameter("name")
    Log(name)
    Dim In As InputStream = File.OpenInput("/opt/jrdc2/files", name)
    out.InitializeToBytesArray(0)
    File.Copy2(In, out)
    In.Close
    Log("File " & File.Combine("/opt/jrdc2/files", name) & " Send!")
End Sub

In the B4A side I have this code:

Sub ricevifile(filename As String)
    Dim j As HttpJob
    j.Initialize("", Me)
    Dim out As OutputStream
    j.Download2(ModVariabili.Server_Download,Array As String ("name",filename))
    Wait For (j) JobDone(j As HttpJob)
    If j.Success Then
        Dim out As OutputStream = File.OpenOutput(File.Combine(File.DirInternal,"audio"), filename, False)
        out.InitializeToBytesArray(0)
        File.Copy2(j.GetInputStream, out)
        out.Close
    End If
    j.Release
End Sub

I don't receive any error, but the file in android side at the end of the procedure, it's empty (0 bytes).
Anyone could tell me where I'm doing wrong?
Thanks in advance!

 

[DonManfred]

it's empty (0 bytes).

I don´t see you using the resp obj to return anything to the caller!?

 Dim out As OutputStream = resp.Outputstream

NOW you can write to the outputstream

You probably need to remove the outputstream initialization.

'out.InitializeToBytesArray(0)

 

[Erel]

Note that jServer has built-in support for downloading files. You just need to put them in the correct folder (the www folder by default).

 

[NikB4x]

Thank you both very much for the fast replies!!

@DonManfred : You are right, I missed the result to send, now it works!

@Erel : I prefer to not publish the file to download cause it depends on the replies based on the query sent to the JRDC2, so it is created "on-fly" and deleted after it was sent. I don't know if there is a better way to do it and if I'm doing the better manner, in any case I want to thank you a lot not only for the very useful B4X developer environment, but also for all the tools and improvements that you are doing daily.