Subdialog parameters

[adriannaude]

I am invoking a Java servlet using the <subdialog> tag but the parameters I specify don't appear in the program.

I have tried two forms;
<subdialog fetchhint="safe" method="post" name="doSaveRecording" namelist="varRecord_Value varRecord_Name Message_recipient_id" src="**servlet**storeRecording" />

and

<subdialog fetchhint="safe" method="post" name="doSaveRecording1" src="**servlet**storeRecording" >
<param name="Message_recipient_id" expr="Message_recipient_id"/>
<param name="varRecord_Name" expr="varRecord_Name"/>
<param name="varRecord_Value" expr="varRecord_Value"/>
</subdialog>

(The **servlet** bit gets resolved at run-time)

The servlet definitely gets invoked but the parameter values are all null, almost as if they aren't getting passed across.

All three parameter variables contain data. I have proved this using prompt tags just prior to the <subdialog> element.

Any clues as to what I am doing wrong?

Adrian

[support]

Hello,

The first of your two attempts is the approach you should be taking. The second uses the <param> tag which is used to populate static subdialog ECMAScript variables. The IVR problem I think you are experiencing is that you are trying to upload an audio file in the post to your subdialog script. This is not a problem but you need to specify the enctype attribute for the <subdialog> tag as "multipart/form-data":

Code: Select all

<subdialog fetchhint="safe" method="post" name="doSaveRecording" namelist="varRecord_Value varRecord_Name Message_recipient_id" enctype="multipart/form-data" src="**servlet**storeRecording" />

This tells the VXML browser to perform the POST as a file upload much like you need to do with a standard web application. Hope this helps!

Regards,
Plum Support

[adriannaude]

Thanks for the reply.

I checked this out and found that the Plum platform is setting the encoding type to "multipart/form-data" whenever I include a variable that contains a recording. This overrides the parameter enctype. My issue therefore lies in my Java code because processing mutipart forms is more complex than urlencoded.

Thanks anyway.