Trying to upload a file to a JAX-RS (jersey) server

Question

I\'m trying to upload a file and other form data using multipart/form-data client with Jersey. I\'m uploading to a REST web service also using Jersey. Here is the server c

Answer 1

Yves solution didn't work for me on the client side. I looked around a bit and found:

• http://puspendu.wordpress.com/2012/08/23/restful-webservice-file-upload-with-jersey/
• http://neopatel.blogspot.de/2011/04/jersey-posting-multipart-data.html
• http://www.mkyong.com/webservices/jax-rs/file-upload-example-in-jersey/

non of which would work with my current jersey 1.18 (see pom extract below). Most trouble was on the client side. I would get error messages like:

com.sun.jersey.api.client.ClientHandlerException: javax.ws.rs.WebApplicationException: java.lang.IllegalArgumentException: Missing body part entity of type 'text/plain'
at com.sun.jersey.client.urlconnection.URLConnectionClientHandler.handle(URLConnectionClientHandler.java:155)
at com.sun.jersey.api.client.Client.handle(Client.java:652)
at com.sun.jersey.api.client.WebResource.handle(WebResource.java:682)

The server side worked quickly with this code (which doesn't do anything interesting with the uploaded InputStream yet - fit to your needs )

@POST
@Consumes(MediaType.MULTIPART_FORM_DATA)
@Produces("text/plain")
public Response uploadFile(
        @FormDataParam("content") final InputStream uploadedInputStream,
        @FormDataParam("fileName") String fileName) throws IOException {
    String uploadContent=IOUtils.toString(uploadedInputStream);
    return Response.ok(uploadContent).build();
}   

the client side would work with this code:

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;   
import javax.ws.rs.core.MediaType;

import com.sun.jersey.api.client.Client;
import com.sun.jersey.api.client.WebResource;
import com.sun.jersey.multipart.FormDataBodyPart;
import com.sun.jersey.multipart.FormDataMultiPart;
/**
 * upload the given file
 * 
 * inspired by
 * http://neopatel.blogspot.de/2011/04/jersey-posting-multipart-data.html
 * 
 * @param url
 * @param uploadFile
 * @return the result
 * @throws IOException
 */
public String upload(String url, File uploadFile) throws IOException {
    WebResource resource = Client.create().resource(url);
    FormDataMultiPart form = new FormDataMultiPart();
    form.field("fileName", uploadFile.getName());
    FormDataBodyPart fdp = new FormDataBodyPart("content",
            new FileInputStream(uploadFile),
            MediaType.APPLICATION_OCTET_STREAM_TYPE);
    form.bodyPart(fdp);
    String response = resource.type(MediaType.MULTIPART_FORM_DATA).post(String.class, form);
    return response;
}

pom.xml extract:

  1.18

  com.sun.jersey
  jersey-server
  ${jersey.version}


  com.sun.jersey
  jersey-client
  ${jersey.version}



  com.sun.jersey.contribs
  jersey-multipart
  ${jersey.version}