Question

我在https://developers.google.com/youtube/v3/quickstart/java上遵循了Google针对YouTube数据API的快速入门

我拿到client_secret.json并将其正确安装在我的项目中。在他们的authorize方法中使用他们的基本代码似乎给我带来了麻烦。

private static HttpTransport HTTP_TRANSPORT;
private static final JsonFactory JSON_FACTORY = JacksonFactory.getDefaultInstance();
private static final Collection<String> SCOPES = Arrays.asList("YouTubeScopes.https://www.googleapis.com/auth/youtube.force-ssl YouTubeScopes.https://www.googleapis.com/auth/youtubepartner");

public static Credential authorize() throws IOException
{
    InputStream in = Registering.class.getResourceAsStream("client_secret.json");
    GoogleClientSecrets clientSecrets = GoogleClientSecrets.load(JSON_FACTORY, new InputStreamReader(in));
    GoogleAuthorizationCodeFlow flow =
            new GoogleAuthorizationCodeFlow.Builder(
                    HTTP_TRANSPORT, JSON_FACTORY, clientSecrets, SCOPES)
            .setDataStoreFactory(DATA_STORE_FACTORY)
            .setAccessType("offline")
            .build();
    Credential credential = null;
    try {
        credential = new AuthorizationCodeInstalledApp(
            flow, new LocalServerReceiver()).authorize("user");
    } catch (Exception e) {
        e.printStackTrace();
    }
    return credential;
}

这只是给我带来问题的摘要，我拥有的所有其他内容几乎与他们提供的Quickstart文件完全相同。

运行此代码时，我总是在这行上得到NullPointerException

GoogleAuthorizationCodeFlow flow =
            new GoogleAuthorizationCodeFlow.Builder(
                    HTTP_TRANSPORT, JSON_FACTORY, clientSecrets, SCOPES)
            .setDataStoreFactory(DATA_STORE_FACTORY)
            .setAccessType("offline")
            .build();

我已经进行了两次和三次检查，以确保它正确加载了client_secret.json并且位于InputStream中。

为什么会发生这种情况？修复此代码引发此异常的方法是什么？

Google YouTube API未授权

0 个答案: