Java Google Sheets API OAuth 2.0

我在设置调用GoogleSheets API的程序时遇到问题。目前，我通过以下方式授权我的凭证：

public static Credential authorize() throws IOException, GeneralSecurityException {
    InputStream p12 = GoogleUtils.class.getResourceAsStream("/key.p12");

    File file = new File("hi");
    OutputStream outputStream = new FileOutputStream(file);
    IOUtils.copy(p12, outputStream);
    outputStream.close();

    // Build flow and trigger user authorization request.
   GoogleCredential credential = new GoogleCredential.Builder()
        .setTransport(HTTP_TRANSPORT)
        .setJsonFactory(JSON_FACTORY)
        .setServiceAccountId("8429209348-1nfuorcfko5pmqh2l0b1au968igchaoq@developer.gserviceaccount.com")
        .setServiceAccountScopes(SCOPES)
        .setServiceAccountPrivateKeyFromP12File(file)
        .build();
    return credential;
}

但是，我现在不知道该怎么处理这个凭证了。在另一个类中，我打开了一个

电子表格服务

，但我找不到实际使用

凭证

对象进行授权的方法。我记得在我的一个老项目中这样做：

public GoogleDrive() {
    /** Our view of Google Spreadsheets as an authenticated Google user. */
    try {
        InputStream p12 = BotPanel.class.getResourceAsStream("/key.p12");

        File file = new File("hi");
        OutputStream outputStream = new FileOutputStream(file);
        IOUtils.copy(p12, outputStream);
        outputStream.close();

        String emailAddress = "81607255786-225dt8i2s8q6qgi0lgg814p27mumqro2@developer.gserviceaccount.com";
        HttpTransport httpTransport = new NetHttpTransport();
        JacksonFactory jsonFactory = new JacksonFactory();
        String[] SCOPESArray = { "https://spreadsheets.google.com/feeds", "https://spreadsheets.google.com/feeds/spreadsheets/private/full", "https://docs.google.com/feeds" };
        final List<String> SCOPES = Arrays.asList(SCOPESArray);
        GoogleCredential credential = new GoogleCredential.Builder()
                    .setTransport(httpTransport).setJsonFactory(jsonFactory)
                    .setServiceAccountId(emailAddress).setServiceAccountScopes(SCOPES)
                    .setServiceAccountPrivateKeyFromP12File(file)
                    .build();

        file.delete();
        service = new SpreadsheetService("Test");
        service.setOAuth2Credentials(credential);
    } catch (Exception e) {
        e.printStackTrace();
    }
}

---

这段代码用@Beta注释有什么原因吗？是否有其他方法可以授权对sheets api的调用？或者，是否仍有某种方法可以使用此方法进行授权？（那太理想了。）

答案很简单。我一直都有错误的依赖关系。确保您有gdata客户端版本1.47。这里有一个指向jar文件的链接。一旦我把它用作图书馆，我所有的问题都消失了：）

@Beta
  public void setOAuth2Credentials(Credential credential) {
    GoogleAuthTokenFactory googleAuthTokenFactory = getGoogleAuthTokenFactory();
    googleAuthTokenFactory.setOAuth2Credentials(credential);
    requestFactory.setAuthToken(authTokenFactory.getAuthToken());
  }