Re: File Uploads with DWR 3.0 M1

Hi all,

I was searching the nabble archive but still am not quite sure how FileUploads are supposed to work with 3.0 M1. I have a test implementation of my webapp that currently give me the error: Parameter callCount not defined!

When I do a normal DWR request that does not involve a file upload, it still works fine (as it was in DWR 2.0.3).

We are using Spring, so DWR is conifgured using this in one of the spring xml files:

   <bean id="urlMapping" class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
       <property name="mappings">
           <props>
               <prop key="/engine.js">dwrController</prop>
               <prop key="/util.js">dwrController</prop>
               <prop key="/interface.js">dwrController</prop>
               <prop key="/call/**">dwrController</prop>
               <prop key="/interface/**">dwrController</prop>
           </props>
       </property>
   </bean>

   <dwr:controller id="dwrController" debug="true" />

   <dwr:configuration>

   </dwr:configuration>

The Bean that exposes methods is this:

   <bean id="AJAXController" class=" ... ">
      ...
       <dwr:remote javascript="Mac">
           <dwr:include method="checkIO"/>
           <dwr:include method="checkImage"/>
       </dwr:remote>
   </bean>

On the client side, I call the checkImage function liek this:

//DWR
       var creative = dwr.util.getValue(fieldId);
       //YAHOO.log(creative);
       Mac.checkImage(creative, c.width, c.height, c.size, fieldId,
       {
             callback: function(result)
             {
                  alert("Image check: " + result);

            },
            timeout: 5000,
             errorHandler: function(message)
             {
                 alert("Oops: " + message);
             }

       });

I verified that the parameter creative really is resolved into the input element that I want to upload.

The method on the server that I am trying ot invoke is this:

   public boolean checkImage(FileTransfer uploadImage, Integer width, Integer height, Float size, String creativeId ) throws IOException
   {
       log.debug("verifyImage()");
     ...


   }


Basically it never get's invoked. once Mac.checkImage ()... is called I get the error wiht

'Failed to find parameter: callCount'

Any ideas?

Could it be that DWR needs to be configured a bit differently in 3.0, especially when it comes to Spring?

Thanx
Sven

---
Sven Haiges
Y! Messenger / Skype: hansamann



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