相关疑难解决方法(0)

我目前正在通过OAuth 2.0和所谓的服务帐户实施对Google通讯录的访问.为普通用户生成服务帐户,例如"My.Name@gmail.com".

生成OAuth 2.0凭据的代码是:

public static GoogleCredential getCredentials() throws GeneralSecurityException, IOException {
    GoogleCredential credential = new GoogleCredential.Builder().setTransport(HTTP_TRANSPORT)
            .setJsonFactory(JSON_FACTORY)
            .setServiceAccountId(SingleUserCredentials.SERVICE_ACCOUNT_EMAIL)
            .setServiceAccountScopes("https://www.google.com/m8/feeds")
            .setServiceAccountPrivateKeyFromP12File(new File(SingleUserCredentials.SERVICE_ACCOUNT_PKCS12_FILE_PATH))
            .build();
    credential.refreshToken();
    return credential;
}

然后我试图通过以下方式检索联系人:

    ContactsService myService = new ContactsService(
            "myApp");

    myService.setOAuth2Credentials(getCredentials());

    URL feedUrl = new URL("https://www.google.com/m8/feeds/contacts/default/full");
    Query myQuery = new Query(feedUrl);
    ContactFeed resultFeed = myService.query(myQuery, ContactFeed.class);
    // Print the results

    for (ContactEntry entry : resultFeed.getEntries()) {
        System.out.println(entry.getName().getFullName().getValue());
        System.out.println("Updated on: " + entry.getUpdated().toStringRfc822());
    }

问题是我的帐户中没有任何一个联系人.Feed始终为空.没有错误.没有.

通过相同的方法访问Google Apps托管域时,它可以正常运行.

我想知道在使用p12密钥文件和服务帐户时,Contacts Api是否支持普通(也称为@ gmail.com)帐户的OAuth 2.0.

我正在尝试通过访问 Google Admin SDK API 来提取我域中的用户。然而，我收到了 401 未经授权的例外。下面的代码是我的设置类，其中包含调用 API 的方法。

 package com.brookfieldres.operations;

   import java.io.File;
   import java.io.IOException;
   import java.security.GeneralSecurityException;
   import java.util.ArrayList;
   import java.util.ResourceBundle;

   import org.apache.log4j.Logger;

   import com.brookfieldres.common.Constants;
   import com.google.api.client.googleapis.auth.oauth2.GoogleCredential;
   import com.google.api.client.googleapis.auth.oauth2.GoogleCredential.Builder;
   import com.google.api.services.admin.directory.Directory;
   import com.google.api.services.admin.directory.DirectoryScopes;

    public class GCAuthentication {

        private static final Logger _Log =      Logger.getLogger(GCAuthentication.class.getName()); 

    static ResourceBundle resources =  ResourceBundle.getBundle("Resources"); 

//  public static String serviceAcc = resources.getString("SERVICE_ACC_EMAIL"); 
//  public static String privKeyPath = resources.getString("PRIVATE_KEY_PATH"); 
//  public static String userEmail = resources.getString("ADMIN_ACC"); 



    public static Directory getDirectoryService(String serviceAcc, String privKeyPath, String userEmail) …