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GCP DialogFlow API 错误:“应用程序默认凭据不可用”

[英]GCP DialogFlow API error: "The Application Default Credentials are not available"

尝试在 Spring 应用程序中使用 Google DialogFlow API 时出现以下错误:

java.io.IOException: The Application Default Credentials are not available. They are available if running in Google Compute Engine. Otherwise, the environment variable GOOGLE_APPLICATION_CREDENTIALS must be defined pointing to a file defining the credentials. See https://developers.google.com/accounts/docs/application-default-credentials for more information.

我成功执行了https://cloud.google.com/dialogflow/es/docs/quick/setup#windows中的所有步骤,并且当我运行命令gcloud auth application-default print-access-token来测试身份验证,它工作正常。 但是,在我的 spring 应用程序中,我在尝试使用 API 时不断收到错误消息。 作为参考,我使用以下内容将我的 Spring 应用程序连接到 DialogFlow API: https ://cloud.google.com/dialogflow/es/docs/quick/api#detect-intent-text-java

有什么建议吗?

编辑:我手动将 GOOGLE_APPLICATION_CREDENTIALS 添加为环境变量,但现在出现以下错误:

java.lang.NoSuchMethodError: 'com.google.auth.oauth2.ServiceAccountCredentials com.google.auth.oauth2.ServiceAccountCredentials.createWithUseJwtAccessWithScope(boolean)'

添加此代码块作为DetectIntentTexts类中的主要方法。

    public static void main(String[] args) {
        
        List <String> myArr = new ArrayList<String>(); 
        myArr.add("Tell me your name");
        try{
        detectIntentTexts("project-id",myArr,"123","en-us");
        }
        catch(Exception e){}
  }

将此代码放入您的detectIntentTexts方法中。

String jsonPath = "<your_json_file_path>";
   GoogleCredentials credentials = GoogleCredentials.fromStream(new FileInputStream(jsonPath))
       .createScoped(Lists.newArrayList("https://www.googleapis.com/auth/cloud-platform"));
       
   SessionsSettings sessionsSettings =
   SessionsSettings.newBuilder()
           .setCredentialsProvider(FixedCredentialsProvider.create(credentials))
           .build();
   SessionsClient sessionsClient = SessionsClient.create(sessionsSettings);

另外,替换此代码:
try (SessionsClient sessionsClient = SessionsClient.create())与此try (SessionsClient client = SessionsClient.create(sessionsSettings))

将这些包导入您的班级。

import java.util.ArrayList;
import com.google.auth.oauth2.GoogleCredentials;
import java.io.FileInputStream;
import com.google.common.collect.Lists;
import com.google.cloud.dialogflow.v2.SessionsSettings;
import com.google.api.gax.core.FixedCredentialsProvider;

最后,将这些依赖项添加到您的pom.xml中。

<dependency>
      <groupId>com.google.auth</groupId>
      <artifactId>google-auth-library-oauth2-http</artifactId>
      <version>1.3.0</version>
    </dependency>

    <dependency>
        <groupId>com.google.api</groupId>
        <artifactId>gax</artifactId>
        <version>2.8.1</version>
    </dependency>
    <dependency>
        <groupId>com.google.api</groupId>
        <artifactId>gax-grpc</artifactId>
        <version>2.8.1</version>
    </dependency>

这是输出:

代码输出

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