Google Drive REST API connection TimeOut？

Question

我使用的是drive REST Api (不是Google Drive Android API)，当我向Google Drive发送请求时，经常会遇到超时(+- each 5 request)。它可以在我列出文件夹或下载文件时出现，但仅当我发出请求时才会出现。在下载过程中决不会。

对于测试，我使用Wifi连接。互联网连接没有问题。

我按照文档(https://developers.google.com/drive/web/quickstart/android)中的描述创建连接。代码如下：

googleAccountCredential = GoogleAccountCredential.usingOAuth2(activity, Arrays.asList(DriveScopes.DRIVE_FILE));

if (accountName.length() == 0) {
    activity.startActivityForResult(googleAccountCredential.newChooseAccountIntent(), ResultCode.GOOGLE_DRIVE_ACCOUNT_NAME_RESULT_CODE);
    return false;
} else {
    if (!isConnected) {
        googleAccountCredential.setSelectedAccountName(accountName);
        googleAccountCredential.setBackOff(new ExponentialBackOff());

        driveService = new Drive.Builder(AndroidHttp.newCompatibleTransport(), JacksonFactory.getDefaultInstance(), googleAccountCredential)
                .setApplicationName(activity.getString(R.string.app_name))
                .build();

        isConnected = true;
    }

    return true;
}

因此，如果我没有“帐户名”，我会问它，否则我只创建一次连接！(我每次都尝试创建连接，但这不会改变任何事情)

所有请求都是在asyncTask中发出的。

它有时有效，有时无效。

请求超时示例：

1.

request = driveService.files().list();
request.setQ("root in parents AND trashed = false");
fileList = request.execute();// Time-out

2.

HttpResponse resp = driveService.getRequestFactory().buildGetRequest(new GenericUrl(url)).execute();// Time-out

编辑：

下面是转储文件：

W/System.err: java.net.SocketTimeoutException: timeout
W/System.err: at com.android.okhttp.okio.Okio$3.newTimeoutException(Okio.java:207)
W/System.err: at com.android.okhttp.okio.AsyncTimeout.exit(AsyncTimeout.java:250)
W/System.err: at com.android.okhttp.okio.AsyncTimeout$2.read(AsyncTimeout.java:217)
W/System.err: at com.android.okhttp.okio.RealBufferedSource.indexOf(RealBufferedSource.java:306)
W/System.err: at com.android.okhttp.okio.RealBufferedSource.indexOf(RealBufferedSource.java:300)
W/System.err: at com.android.okhttp.okio.RealBufferedSource.readUtf8LineStrict(RealBufferedSource.java:196)
W/System.err: at com.android.okhttp.internal.http.HttpConnection.readResponse(HttpConnection.java:191)
W/System.err: at com.android.okhttp.internal.http.HttpTransport.readResponseHeaders(HttpTransport.java:80)
W/System.err: at com.android.okhttp.internal.http.HttpEngine.readNetworkResponse(HttpEngine.java:904)
W/System.err: at com.android.okhttp.internal.http.HttpEngine.readResponse(HttpEngine.java:788)
W/System.err: at com.android.okhttp.internal.huc.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:439)
W/System.err: at com.android.okhttp.internal.huc.HttpURLConnectionImpl.getResponse(HttpURLConnectionImpl.java:384)
W/System.err: at com.android.okhttp.internal.huc.HttpURLConnectionImpl.getResponseCode(HttpURLConnectionImpl.java:497)
W/System.err: at com.android.okhttp.internal.huc.DelegatingHttpsURLConnection.getResponseCode(DelegatingHttpsURLConnection.java:105)
W/System.err: at com.android.okhttp.internal.huc.HttpsURLConnectionImpl.getResponseCode(HttpsURLConnectionImpl.java)
W/System.err: at com.google.api.client.http.javanet.NetHttpResponse.<init>(NetHttpResponse.java:37)
W/System.err: at com.google.api.client.http.javanet.NetHttpRequest.execute(NetHttpRequest.java:94)
W/System.err: at com.google.api.client.http.HttpRequest.execute(HttpRequest.java:972)
W/System.err: at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.executeUnparsed(AbstractGoogleClientRequest.java:419)
W/System.err: at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.executeUnparsed(AbstractGoogleClientRequest.java:352)
W/System.err: at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.execute(AbstractGoogleClientRequest.java:469)
W/System.err: at org.team.acs.scubalog.share.cloud.googleDrive.asynckTask.GoogleDriveGetDirectoryListAsyncTask.doInBackground(GoogleDriveGetDirectoryListAsyncTask.java:60)
W/System.err: at org.team.acs.scubalog.share.cloud.googleDrive.asynckTask.GoogleDriveGetDirectoryListAsyncTask.doInBackground(GoogleDriveGetDirectoryListAsyncTask.java:20)
W/System.err: at android.os.AsyncTask$2.call(AsyncTask.java:295)
W/System.err: at java.util.concurrent.FutureTask.run(FutureTask.java:237)
W/System.err: at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:234)
W/System.err: at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
W/System.err: at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
W/System.err: at java.lang.Thread.run(Thread.java:818)

有什么想法吗？

Answer 1

对于其他有这个问题的人，这对我很有效：

    private static HttpRequestInitializer setHttpTimeout(final HttpRequestInitializer requestInitializer) {
            return new HttpRequestInitializer() {
                @Override
                public void initialize(HttpRequest httpRequest) throws IOException {
                    requestInitializer.initialize(httpRequest);
                    httpRequest.setConnectTimeout(3 * 60000);  // 3 minutes connect timeout
                    httpRequest.setReadTimeout(3 * 60000);  // 3 minutes read timeout
                }
            };
        }


 @Nullable
    public static DriveServiceHelper create(Context context) {

        Set<Scope> requiredScopes = new HashSet<>(2);
        requiredScopes.add(new Scope(DriveScopes.DRIVE_APPDATA));
        requiredScopes.add(new Scope(DriveScopes.DRIVE_FILE));

        GoogleSignInAccount signInAccount = GoogleSignIn.getLastSignedInAccount(context);
        if (signInAccount != null && signInAccount.getGrantedScopes().containsAll(requiredScopes)) {




            // Use the authenticated account to sign in to the Drive service.
            GoogleAccountCredential credential =
                    GoogleAccountCredential.usingOAuth2(context, Collections.singleton(DriveScopes.DRIVE_APPDATA));
            credential.setSelectedAccount(signInAccount.getAccount());
            com.google.api.services.drive.Drive googleDriveService =
                    new com.google.api.services.drive.Drive.Builder(
                            AndroidHttp.newCompatibleTransport(),
                            new GsonFactory(),
                            setHttpTimeout(credential))
                            .setApplicationName(context.getString(R.string.app_name))
                            .build();

            return new DriveServiceHelper(googleDriveService);
        }

        return null;
    }

参考：https://developers.google.com/api-client-library/java/google-api-java-client/errors

Answer 2

我在你的代码中看不到任何明显的错误，事实上，我已经成功地使用了非常类似的结构：

  com.google.api.services.drive.Drive driveService =
    new Drive.Builder(
      AndroidHttp.newCompatibleTransport(),
      new GsonFactory(),
      GoogleAccountCredential
        .usingOAuth2(activity.getApplicationContext(), Collections.singletonList(DriveScopes.DRIVE_FILE))
        .setSelectedAccountName(accountName)
  ).build();

因此，让我们来看看它们之间的区别(不是说这就是解决方法)：

1/ i未指定'.setBackOff(new ExponentialBackOff())‘策略

2/ i使用“activity.getApplicationContext()”代替activity context

3/我不知道您的用户电子邮件(accountName)来自何处。它必须是在设备上注册的帐户之一，可以通过以下方式实现：

• 标准安卓设置>帐户菜单> Add account
• 没有指定'setSelectedAccountName(accountName)'，这会导致帐户选择器弹出，允许用户选择已注册的帐户或添加一个新的
• 在您的活动中调用帐户选择器并从activity获取电子邮件

第3/点很可能不会导致您的问题，它将返回不同的错误消息。

所有这些都可以在RESTDemo here中看到(参见REST.init()和REQ_ACCPICK)。

祝好运