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How to login to Activiti using Rest

Question asked by elio1 on Sep 16, 2011
Latest reply on Nov 5, 2012 by jbarrez
Hi guys,

I've been struggeling for a while to login to Activiti using Rest. I followed the api guides and implemented the following


package demo;

import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;

import com.sun.jersey.api.client.Client;
import com.sun.jersey.api.client.ClientResponse;
import com.sun.jersey.api.client.UniformInterfaceException;
import com.sun.jersey.api.client.WebResource;
import com.sun.jersey.api.client.config.ClientConfig;
import com.sun.jersey.api.client.config.DefaultClientConfig;
import com.sun.jersey.core.util.MultivaluedMapImpl;
import com.sun.jersey.json.impl.provider.entity.JSONRootElementProvider;

public class Aloha {

   /**
    * @param args
    */
   public static void main(String[] args) {
      // TODO Auto-generated method stub
      
      Client client = Client.create();
      WebResource webResource = client
            .resource("http://localhost:8080/activiti-rest/service/login");
      MultivaluedMap<String, String> formData = new MultivaluedMapImpl();
      formData.add("userId", "kermit");
      formData.add("password", "kermit");
      ClientResponse response;
      try {
         response = webResource.type("application/x-www-form-urlencoded")
               .post(ClientResponse.class, formData); // webResource.accept(MediaType.TEXT_PLAIN_TYPE).post(ClientResponse.class,
                                             // formData);
         System.out.print(response.toString());
      } catch (UniformInterfaceException ue) {
         System.out.print(ue.getMessage());
      }

   }

}

As you can see I am using Jersey to consume the webservice, and here is the response I am getting all time:

POST http://localhost:8080/activiti-rest/service/login returned a response status of 415 Unsupported Media Type

Please could you point out what I am doing wrong here?

Please note that when I replace the type with "application/json" i get the follow error:


Exception in thread "main" com.sun.jersey.api.client.ClientHandlerException: com.sun.jersey.api.client.ClientHandlerException: A message body writer for Java type, class com.sun.jersey.core.util.MultivaluedMapImpl, and MIME media type, application/json, was not found
   at com.sun.jersey.client.urlconnection.URLConnectionClientHandler.handle(URLConnectionClientHandler.java:149)
   at com.sun.jersey.api.client.Client.handle(Client.java:648)
   at com.sun.jersey.api.client.WebResource.handle(WebResource.java:670)
   at com.sun.jersey.api.client.WebResource.access$200(WebResource.java:74)
   at com.sun.jersey.api.client.WebResource$Builder.post(WebResource.java:563)
   at demo.Aloha.main(Aloha.java:32)
Caused by: com.sun.jersey.api.client.ClientHandlerException: A message body writer for Java type, class com.sun.jersey.core.util.MultivaluedMapImpl, and MIME media type, application/json, was not found
   at com.sun.jersey.api.client.RequestWriter.writeRequestEntity(RequestWriter.java:288)
   at com.sun.jersey.client.urlconnection.URLConnectionClientHandler._invoke(URLConnectionClientHandler.java:204)
   at com.sun.jersey.client.urlconnection.URLConnectionClientHandler.handle(URLConnectionClientHandler.java:147)
   … 5 more


Many Thanks,
Elio

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