Unsupported Media Type (415) Error while implementing File upload using Jersey in Mule

Question

I am trying to implement File Upload using Jersey module in Mule.

My mule flow looks like this:

<flow name="rest-service">
    <inbound-endpoint address="http://localhost:9999/testupload"/>
    <jersey:resources>
        <component class="com.example.test.UploadFileResource"/>
    </jersey:resources>
</flow>

If I don't put @Consumes annotation in the resource method in UploadFileResource like below, the method gets called when an HTTP Post request is made using multipart/form-data Content-type and I get HTTP 2xx status code:

@Path("/uploadfile")
public class UploadFileResource {

    @POST
    public Response uploadFile2(...) {
        logger.info("Multipart Upload");
        ...
    }
}

But when I put @Consumes annotation with MULTIPART_FORM_DATA Media Type like below, the method does not get called and I get HTTP 415 Unsupported Media type, even when the HTTP Post request is made using multipart/form-data Content-type:

@Path("/uploadfile")
public class UploadFileResource {

    @POST
    @Consumes(MediaType.MULTIPART_FORM_DATA)
    public Response uploadFile2(...) {
        logger.info("Multipart Upload");
        ...
    }
}

Any idea why 415 status comes even when @Consumes Media type matches the HTTP Post Content-type header?

I tried two versions: One without any input arguments, i.e. uploadFile2(), and one with two input arguments, i.e. uploadFile2(@FormDataParam("file") InputStream uploadedInputStream, @FormDataParam("file") FormDataContentDisposition fileDetail). I am getting the same result in both the cases. — Pranav Pal
Can you try to turn on the tracing support (as described here) and post the response headers to see what's going on? — Michal Gajdos

Harald Harald · Accepted Answer · 2014-04-11T08:42:01

You may need to register the MultipartFeature as described in the Jersey documentation, chapter 8.3.1.2 Registration.

Create a class something like this:

/**
 * 
 */
package com.verico.multipart.app;

import javax.ws.rs.ApplicationPath;

import org.glassfish.jersey.media.multipart.MultiPartFeature;
import org.glassfish.jersey.server.ResourceConfig;

@ApplicationPath("/")
public class MultiPartApp extends ResourceConfig {

public MultiPartApp() {
    super(MultiPartFeature.class);
    }
}

And add the following init-param to your Jersey servlet in web.xml:

     <init-param>
        <param-name>javax.ws.rs.Application</param-name>
        <param-value>com.verico.multipart.app.MultiPartApp</param-value>
    </init-param>

Unsupported Media Type (415) Error while implementing File upload using Jersey in Mule

1 Answers