按照本快速入门指南中的步骤操作,大约 10 分钟后,您将获得一个简单的 Java 命令行应用,该应用使用服务帐号向零触摸注册客户 API 发出请求。
前提条件
如需运行本快速入门,您需要执行以下操作:
- 关联到您的零触摸注册客户帐号的服务帐号。请参阅使用入门。
- Java 1.7 或更高版本。
- Gradle 2.3 或更高版本。
- 能够访问互联网和网络浏览器。
第 1 步:启用 Zero-Touch Enrollment API
- 可以使用此向导在 Google Developers Console 中创建或选择项目,并自动启用此 API。点击继续,然后点击转到凭据。
- 将您要访问哪些数据?设为应用数据。
- 点击 Next。系统会提示您创建服务帐号。
- 为服务帐号名称指定一个描述性名称。
- 记下服务帐号 ID(类似于电子邮件地址),因为您稍后会用到它。
- 将角色设置为服务帐号 > Service Account User。
- 点击完成以完成服务帐号的创建过程。
- 点击您创建的服务帐号的电子邮件地址。
- 点击 **密钥**。
- 点击 **添加密钥**,然后点击 **创建新密钥**。
- 对于 **密钥类型**,选择 **JSON**。
- 点击创建,私钥即会下载到您的计算机。
- 点击 **关闭**。
- 将文件移至工作目录,并将其重命名为
service_account_key.json
。
第 2 步:准备项目
如需设置 Gradle 项目,请按以下步骤操作:
运行以下命令,在工作目录中创建一个新项目:
gradle init --type basic mkdir -p src/main/java src/main/resources
将您在创建服务帐号时下载的
service_account_key.json
复制到上面创建的src/main/resources/
目录中。打开默认的
build.gradle
文件,并将其内容替换为以下代码:
apply plugin: 'java' apply plugin: 'application' mainClassName = 'CustomerQuickstart' sourceCompatibility = 1.7 targetCompatibility = 1.7 version = '1.0' repositories { mavenCentral() } dependencies { compile 'com.google.api-client:google-api-client:2.2.0' compile 'com.google.apis:google-api-services-androiddeviceprovisioning:v1-rev20230509-2.0.0' compile 'com.google.auth:google-auth-library-oauth2-http:1.16.1' compile 'com.google.auth:google-auth-library-credentials:1.16.1' compile 'com.google.http-client:google-http-client:1.43.1' compile 'com.google.oauth-client:google-oauth-client-jetty:1.34.1' }
第 3 步:设置示例
创建一个名为 src/main/java/CustomerQuickstart.java
的文件,然后复制以下代码并保存该文件。
import com.google.api.client.googleapis.javanet.GoogleNetHttpTransport; import com.google.api.client.http.HttpRequestInitializer; import com.google.api.client.http.HttpTransport; import com.google.api.client.json.JsonFactory; import com.google.api.client.json.gson.GsonFactory; import com.google.api.services.androiddeviceprovisioning.v1.AndroidProvisioningPartner; import com.google.api.services.androiddeviceprovisioning.v1.model.Company; import com.google.api.services.androiddeviceprovisioning.v1.model.CustomerListCustomersResponse; import com.google.api.services.androiddeviceprovisioning.v1.model.CustomerListDpcsResponse; import com.google.api.services.androiddeviceprovisioning.v1.model.Dpc; import com.google.auth.http.HttpCredentialsAdapter; import com.google.auth.oauth2.GoogleCredentials; import com.google.auth.oauth2.ServiceAccountCredentials; import java.io.IOException; import java.io.InputStream; import java.util.Arrays; import java.util.List; /** This class forms the quickstart introduction to the zero-touch enrollment customer API. */ public class CustomerQuickstart { // A single auth scope is used for the zero-touch enrollment customer API. private static final List<String> SCOPES = Arrays.asList("https://www.googleapis.com/auth/androidworkzerotouchemm"); private static final String APP_NAME = "Zero-touch Enrollment Java Quickstart"; // Global shared instances private static final JsonFactory JSON_FACTORY = GsonFactory.getDefaultInstance(); private static HttpTransport HTTP_TRANSPORT; static { try { HTTP_TRANSPORT = GoogleNetHttpTransport.newTrustedTransport(); } catch (Throwable t) { t.printStackTrace(); System.exit(1); } } /** * Creates a GoogleCredentials object with the correct OAuth2 authorization for the service * account that calls the reseller API. The service endpoint invokes this method when setting up a * new service instance. * * @return an authorized GoogleCredentials object. * @throws IOException */ public static GoogleCredentials authorize() throws IOException { // Load service account key. InputStream in = CustomerQuickstart.class.getResourceAsStream("/service_account_key.json"); // Create the credential scoped to the zero-touch enrollment customer APIs. GoogleCredentials credential = ServiceAccountCredentials.fromStream(in).createScoped(SCOPES); return credential; } /** * Build and return an authorized zero-touch enrollment API client service. Use the service * endpoint to call the API methods. * * @return an authorized client service endpoint * @throws IOException */ public static AndroidProvisioningPartner getService() throws IOException { GoogleCredentials credential = authorize(); HttpRequestInitializer requestInitializer = new HttpCredentialsAdapter(credential); return new AndroidProvisioningPartner.Builder(HTTP_TRANSPORT, JSON_FACTORY, requestInitializer) .setApplicationName(APP_NAME) .build(); } /** * Runs the zero-touch enrollment quickstart app. * * @throws IOException */ public static void main(String[] args) throws IOException { // Create a zero-touch enrollment API service endpoint. AndroidProvisioningPartner service = getService(); // Get the customer's account. Because a customer might have more // than one, limit the results to the first account found. AndroidProvisioningPartner.Customers.List accountRequest = service.customers().list(); accountRequest.setPageSize(1); CustomerListCustomersResponse accountResponse = accountRequest.execute(); if (accountResponse.getCustomers().isEmpty()) { // No accounts found for the user. Confirm the Google Account // that authorizes the request can access the zero-touch portal. System.out.println("No zero-touch enrollment account found."); System.exit(-1); } Company customer = accountResponse.getCustomers().get(0); String customerAccount = customer.getName(); // Send an API request to list all the DPCs available using the customer account. AndroidProvisioningPartner.Customers.Dpcs.List request = service.customers().dpcs().list(customerAccount); CustomerListDpcsResponse response = request.execute(); // Print out the details of each DPC. java.util.List<Dpc> dpcs = response.getDpcs(); for (Dpc dpcApp : dpcs) { System.out.format("Name:%s APK:%s\n", dpcApp.getDpcName(), dpcApp.getPackageName()); } } }
第 4 步:运行示例代码
请使用操作系统的帮助来运行该文件中的脚本。在 UNIX 和 Mac 计算机上,在终端中运行以下命令:
gradle -q run
备注
- 避免与任何人共享您的
service_account_key.json
文件。请注意不要将其包含在源代码库中。您可以详细了解如何处理服务帐号密钥。