我正在尝试构建一个从谷歌云下载文件的连接器。为此，我使用的是用于Java的云存储API客户端库（v1beta2-rev23-1.17.0-rc）
我收到错误
“400 Bad Request：”error“：”unauthorized_client“
并且无法下载文件。
代码是
https://gist.github.com/yashk/9226613
/**
* Main class for the Cloud Storage API command line sample.
* Demonstrates how to make an authenticated API call using OAuth 2 helper classes.
*/
public class StorageSample {
/**
* Be sure to specify the name of your application. If the application name is {@code null} or
* blank, the application will log a warning. Suggested format is "MyCompany-ProductName/1.0".
*/
private static final String APPLICATION_NAME = "MyCompnay/1.0";
/** Directory to store user credentials. */
private static final java.io.File DATA_STORE_DIR =
new java.io.File(System.getProperty("user.home"), ".store/storage_sample");
/**
* Global instance of the {@link DataStoreFactory}. The best practice is to make it a single
* globally shared instance across your application.
*/
private static FileDataStoreFactory dataStoreFactory;
/** Global instance of the JSON factory. */
private static final JsonFactory JSON_FACTORY = JacksonFactory.getDefaultInstance();
/** Global instance of the HTTP transport. */
private static HttpTransport httpTransport;
@SuppressWarnings("unused")
private static Storage client;
/** Authorizes the installed application to access user's protected data. */
private static Credential authorize() throws Exception {
// load client secrets
GoogleClientSecrets clientSecrets = GoogleClientSecrets.load(JSON_FACTORY,
new InputStreamReader(StorageSample.class.getResourceAsStream("/client_secrets.json")));
if (clientSecrets.getDetails().getClientId().startsWith("Enter") ||
clientSecrets.getDetails().getClientSecret().startsWith("Enter ")) {
System.out.println(
"Overwrite the src/main/resources/client_secrets.json file with the client secrets file "
+ "you downloaded from the Quickstart tool or manually enter your Client ID and Secret "
+ "from https://code.google.com/apis/console/?api=storage#project:<project_id> "
+ "into src/main/resources/client_secrets.json");
System.exit(1);
}
// Set up authorization code flow.
// Ask for only the permissions you need. Asking for more permissions will
// reduce the number of users who finish the process for giving you access
// to their accounts. It will also increase the amount of effort you will
// have to spend explaining to users what you are doing with their data.
// Here we are listing all of the available scopes. You should remove scopes
// that you are not actually using.
Set<String> scopes = new HashSet<String>();
scopes.add(StorageScopes.DEVSTORAGE_FULL_CONTROL);
scopes.add(StorageScopes.DEVSTORAGE_READ_ONLY);
scopes.add(StorageScopes.DEVSTORAGE_READ_WRITE);
GoogleAuthorizationCodeFlow flow = new GoogleAuthorizationCodeFlow.Builder(
httpTransport, JSON_FACTORY, clientSecrets, scopes)
.setDataStoreFactory(dataStoreFactory)
.build();
// authorize
return new AuthorizationCodeInstalledApp(flow, new LocalServerReceiver()).authorize("user");
}
public static void main(String[] args) {
try {
// initialize the transport
httpTransport = GoogleNetHttpTransport.newTrustedTransport();
// initialize the data store factory
dataStoreFactory = new FileDataStoreFactory(DATA_STORE_DIR);
// authorization
Credential credential = authorize();
// set up global Storage instance
client = new Storage.Builder(httpTransport, JSON_FACTORY, credential).setApplicationName(APPLICATION_NAME).build();
client.objects().list("<bucket_id>").executeAndDownloadTo(System.out);
} catch (IOException e) {
System.err.println(e.getMessage());
} catch (Throwable t) {
t.printStackTrace();
}
System.exit(1);
}
}
}
错误日志是 https://gist.github.com/yashk/9226613
Feb 26, 2014 9:28:05 AM com.google.api.client.http.HttpRequest execute
CONFIG: -------------- REQUEST --------------
POST https://accounts.google.com/o/oauth2/token
Accept-Encoding: gzip
User-Agent: Google-HTTP-Java-Client/1.17.0-rc (gzip)
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
Content-Length: 208
Feb 26, 2014 9:28:05 AM com.google.api.client.http.HttpRequest execute
CONFIG: curl -v --compressed -X POST -H 'Accept-Encoding: gzip' -H 'User-Agent: Google-HTTP-Java-Client/1.17.0-rc (gzip)' -H 'Content-Type: application/x-www-form-urlencoded; charset=UTF-8' -d '@-' -- 'https://accounts.google.com/o/oauth2/token' << $$$
Feb 26, 2014 9:28:05 AM com.google.api.client.util.LoggingByteArrayOutputStream close
CONFIG: Total: 208 bytes
Feb 26, 2014 9:28:05 AM com.google.api.client.util.LoggingByteArrayOutputStream close
CONFIG: grant_type=refresh_token&refresh_token=<removed_for_sec>&client_id=<removed_for_sec>&client_secret=<removed_for_sec>
Feb 26, 2014 9:28:05 AM com.google.api.client.http.HttpResponse <init>
CONFIG: -------------- RESPONSE --------------
HTTP/1.1 400 Bad Request
Expires: Fri, 01 Jan 1990 00:00:00 GMT
X-XSS-Protection: 1; mode=block
Alternate-Protocol: 443:quic
Server: GSE
X-Content-Type-Options: nosniff
Cache-Control: no-cache, no-store, max-age=0, must-revalidate
Pragma: no-cache
X-Frame-Options: SAMEORIGIN
Date: Wed, 26 Feb 2014 09:28:01 GMT
Transfer-Encoding: chunked
Content-Encoding: gzip
Content-Type: application/json
Feb 26, 2014 9:28:05 AM com.google.api.client.util.LoggingByteArrayOutputStream close
CONFIG: Total: 37 bytes
Feb 26, 2014 9:28:05 AM com.google.api.client.util.LoggingByteArrayOutputStream close
CONFIG: {
"error" : "unauthorized_client"
}
400 Bad Request
{
"error" : "unauthorized_client"
}
答案 0 :(得分：1)
在谷歌公司联系人的帮助下解决了这个问题 -
在授权方法
而不是
return new AuthorizationCodeInstalledApp(flow, new LocalServerReceiver()).authorize("user");
}
使用云控制台中的Google帐户用户名
return new AuthorizationCodeInstalledApp(flow, new LocalServerReceiver()).authorize("myemail@mycompany.com");
}
如果您运行代码，此更改后，它将弹出一个浏览器窗口并要求您进行授权 访问项目和宾果游戏！