IBM Watson + Java

Question

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package dino_post_java;


import com.ibm.watson.developer_cloud.natural_language_classifier.v1.NaturalLanguageClassifier;
import com.ibm.watson.developer_cloud.natural_language_classifier.v1.model.Classification;
import com.ibm.watson.developer_cloud.natural_language_classifier.v1.model.ClassifyOptions;

import java.util.ArrayList;
import org.json.JSONObject;

/**
 *
 * @author Matheus Markies
 */
public class Text_Robot extends Thread{

    public static ArrayList<String> KeyWords = new ArrayList<String>();

    public void run(){

    //JSONObject vcap =new JSONObject(System.getenv("VCAP_SERVICES"));

   NaturalLanguageClassifier service = new NaturalLanguageClassifier();
    service.setUsernameAndPassword("<username>", "<password>");

    ClassifyOptions classifyOptions = new ClassifyOptions.Builder()
        .classifierId("<classifierId>")
        .text("Is it sunny?")
        .build();
    Classification classification = service.classify(classifyOptions).execute();

    System.out.println(classification);

    }

}

I’m not getting the Naturallanguageclassifier. When I try to run the program it turns the error below:

I tried to use VCAP_SERVICES.json as shown in this website

But I didn’t get any results.

When I try to access the link using the user and password I put, it says that the user and password are wrong.

Can someone help me!

Answer 1

Step 1:

According to the error message, you are not passing your credentials correctly Exception in thread "Thread-5" ... Access denied due to invalid credentials.

Try to perform the steps according to your own watson documentation:

Step 1: Log in, create the service, and get your credentials

If you already know your credentials for the Natural service instance Language Classifier, ignore this step.

• Go to Natural Language Classifier and sign up for a free account or log in to the IBM Cloud account.
• After logging in, on the Natural Language Classifier page, type Classifier-tutorial in the Service name field to identify this instance of the service and click Create.
• Copy your credentials:
  • to. Click on Service credentials.
  • b. Click View credentials in the "Service credentials section".
  • c. Copy the values username and password.

Step 2:

The error is also indicating that it may be a failure to specify the endpoint. Check if it is correct and according to the API of Watson

Step 3:

It can be of great help to check open-source code of users who have already implemented such cited functions as an example: NaturalLanguageClassifier javaSDK

Step 4:

If it still doesn’t work check the error logs and lines of code where errors are appearing.