Google Dialogflow:应用程序默认凭据不可用

问题描述 投票:5回答:2

嗨,我对Google Cloud的Java SDK库存在问题。

我需要查询Dialogflow V2 API,我正在使用这个SDK(https://github.com/GoogleCloudPlatform/google-cloud-java/tree/master

我已按照说明将GOOGLE_APPLICATION_CREDENTIALS设置为环境变量。

我做了几次尝试(我正在使用Mac):

export GOOGLE_APPLICATION_CREDENTIALS=path/to/my.json

不起作用

export GOOGLE_APPLICATION_CREDENTIALS=path/to/my.json

在.bash_profile中

不起作用

在我的Java代码中:

System.setProperty("GOOGLE_APPLICATION_CREDENTIALS", "/path/to/my.json");
GoogleCredential credential = GoogleCredential.getApplicationDefault();

不起作用

String jsonPath = "/path/to/my.json";
GoogleCredentials credentials = GoogleCredentials.fromStream(new FileInputStream(jsonPath));
Storage storage = StorageOptions.newBuilder().setCredentials(credentials).build().getService();

不起作用

通过“Maven build> Environment> New variable”将GOOGLE_APPLICATION_CREDENTIALS作为环境变量放入Eclipse并重新启动IDE

不起作用

始终出现相同的错误:

An error occurred during Dialogflow http request: 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.
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

真的我无法理解有什么不对。

这是由于上述错误而无法查询Dialogflow的代码片段:

SessionsClient sessionsClient = SessionsClient.create();
SessionName session = SessionName.of("my-project-id", sessionId);
InputStream stream = new ByteArrayInputStream(requestBody.getBytes(StandardCharsets.UTF_8));
QueryInput queryInput = QueryInput.newBuilder().build().parseFrom(stream);
DetectIntentResponse response = sessionsClient.detectIntent(session, queryInput);  

提出例外

SessionsClient sessionsClient = SessionsClient.create();

提前致谢。

java google-cloud-platform dialogflow gcloud-java
2个回答
2
投票

解决方案是将GOOGLE_APPLICATION_CREDENTIALS设置为Application Server的环境变量。


-2
投票

与上面提到的不同,我提供的“凭证”工作方式

Storage storage = StorageOptions.newBuilder().setCredentials(credentials).build().getService();

但与FirestoreOptions相同的方法失败,提到的错误“应用程序默认凭据不可用”。

注意:我不愿意通过环境变量配置我的应用程序,而更喜欢在代码中进行配置。还有一个原因 - 我需要一个应用程序的多个不同连接。

在调试Google代码后,我发现他们没有使用提供的凭据,而是在提供的选项上调用getCredentialsProvider()。我认为这是他们的实现中的错误,但解决方法相当简单:

  1. 创建自己的CredentialsProvider
  2. 将其设置为FirestoreOptions

假人样本:

public static class MyCredentialsProvider implements CredentialsProvider {
    GoogleCredentials credentials;

    public MyCredentialsProvider(GoogleCredentials credentials) {
        this.credentials = credentials;
    }

    @Override
    public Credentials getCredentials() throws IOException {
        return credentials;
    }
}

...

FirestoreOptions.Builder builder = FirestoreOptions.newBuilder()
        .setProjectId(serviceAccount.project_id)
        .setCredentialsProvider(new MyCredentialsProvider(credentials));
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