检索有关Google People API(Java)的联系人的信息

我使用的是 here年最近发布的Google People API的示例.我稍微扩展了一些示例,以显示有关联系人的其他信息,例如电子邮件地址和电话号码.应该完成这项工作的代码如下所示.

public class PeopleQuickstart {

    ...

    public static void getPersonInfo(Person person){

        // Get names
        List<Name> names = person.getNames();
        if(names != null && names.size() > 0) {
            for(Name personName: names) {
                System.out.println("Name: " + personName.getDisplayName());
            }
        }

        // Get email addresses
        List<EmailAddress> emails = person.getEmailAddresses();
        if(emails != null && emails.size() > 0) {
            for(EmailAddress personEmail: emails) {
                System.out.println("Email: " + personEmail.getValue());
            }
        }

        // Get phone numbers
        List<PhoneNumber> phones = person.getPhoneNumbers();
        if(phones != null && phones.size() > 0) {
            for(PhoneNumber personPhone: phones){
                System.out.println("Phone number: " + personPhone.getValue());
            }
        }
    }

    public static void main(String [] args)  throws IOException {

        People service = getPeopleService();

        // Request 120 connections.
        ListConnectionsResponse response = service.people().connections()
                .list("people/me")
                .setPageSize(120)
                .execute();

        // Display information about your connections.
        List<Person> connections = response.getConnections();
        if (connections != null && connections.size() > 0) {
            for (Person person: connections){
                getPersonInfo(person);
            }
        } else {
            System.out.println("No connections found.");
        }   
    }
}

我正在使用我的联系人列表测试此程序,我可以成功获取人员列表以及名称字段.但是,我无法获取电子邮件地址和电话号码的值(列表始终为空),但我确实在联系人列表中设置了这些值(通过Gmail->联系人验证).我错过了什么？

好的,问题解决了.看起来谷歌的文档有点误导(好吧,它刚刚发布;)).当我尝试使用people.connections.list(参见 here)获取我的联系人时,可以设置几个查询参数.但是,对于requestMask参数,声明“省略此字段将包括所有字段”,但事实并非如此(至少对我不起作用).因此,必须明确指定响应中要返回的字段.修改后的代码如下.我希望谷歌人能够澄清这一点.

public class PeopleQuickstart {

    ...

    public static void main(String [] args)  throws IOException {

        People service = getPeopleService();

        // Request 120 connections.
        ListConnectionsResponse response = service.people().connections()
                .list("people/me")
                .setPageSize(120)
                // specify fields to be returned
                .setRequestMaskIncludeField("person.names,person.emailAddresses,person.phoneNumbers")
                .execute();

        // Display information about a person.
        List<Person> connections = response.getConnections();
        if (connections != null && connections.size() > 0) {
            for (Person person: connections){
                getPersonInfo(person);
            }
        } else {
            System.out.println("No connections found.");
        }   
    }
}