IBM沃森 - 自然語言分類服務（Java SDK） - deleteClassifier（）方法不會刪除

Question

我想調用在IBM沃森平臺的自然語言分類服務deleteClassifier（）方法分類，操作完成，但不會刪除分類器。這裏是我的代碼和輸出：

代碼：

NaturalLanguageClassifier service = new NaturalLanguageClassifier(); 
service.setUsernameAndPassword("xxxxxxx", "yyyyyyy"); 

System.out.println("Before deleting: "); 
Classifier classifier; 
classifier = service.getClassifier("90e7acx197-nlc-38920").execute(); 
System.out.println(classifier); 

service.deleteClassifier("90e7acx197-nlc-38920"); 

System.out.println("After deleting: "); 
classifier = service.getClassifier("90e7acx197-nlc-38920").execute(); 
System.out.println(classifier); 

輸出：

之前刪除：

Apr 18, 2017 7:16:08 PM okhttp3.internal.platform.Platform log 
INFO: --> GET https://gateway.watsonplatform.net/natural-language-classifier/api/v1/classifiers/90e7acx197-nlc-38920 http/1.1 
Apr 18, 2017 7:16:08 PM okhttp3.internal.platform.Platform log 
INFO: <-- 200 OK https://gateway.watsonplatform.net/natural-language-classifier/api/v1/classifiers/90e7acx197-nlc-38920 (167ms, unknown-length body) 

{ 
    "classifier_id": "90e7acx197-nlc-38920", 
    "language": "en", 
    "name": "TutorialClassifier", 
    "status": "Available", 
    "created": "2017-04-18T01:26:14.630", 
    "status_description": "The classifier instance is now available and is ready to take classifier requests.", 
    "url": "https://gateway.watsonplatform.net/natural-language-classifier/api/v1/classifiers/90e7acx197-nlc-38920" 
} 

刪除後：

Apr 18, 2017 7:16:08 PM okhttp3.internal.platform.Platform log 
INFO: --> GET https://gateway.watsonplatform.net/natural-language-classifier/api/v1/classifiers/90e7acx197-nlc-38920 http/1.1 
Apr 18, 2017 7:16:09 PM okhttp3.internal.platform.Platform log 
INFO: <-- 200 OK https://gateway.watsonplatform.net/natural-language-classifier/api/v1/classifiers/90e7acx197-nlc-38920 (142ms, unknown-length body) 

{ 
    "classifier_id": "90e7acx197-nlc-38920", 
    "language": "en", 
    "name": "TutorialClassifier", 
    "status": "Available", 
    "created": "2017-04-18T01:26:14.630", 
    "status_description": "The classifier instance is now available and is ready to take classifier requests.", 
    "url": "https://gateway.watsonplatform.net/natural-language-classifier/api/v1/classifiers/90e7acx197-nlc-38920" 
} 

拿起_JAVA_OPTIONS: -Xmx512M -Xms512M

我在這裏幹什麼什麼了嗎？

Answer 1

的deleteClassifier需要用.execute()

添加.execute()到

service.deleteClassifier("90e7acx197-nlc-38920"); 

下面的方法刪除分類

service.deleteClassifier("90e7acx197-nlc-38920").execute();