Question

我使用谷歌应用程序引擎在gc上部署了应用程序/休息服务，我想在本地从java程序调用服务，我使用基于令牌的身份验证，我能够使用谷歌客户端库检索检索令牌，如果我可以使用带有auth令牌的gc库

看到一些示例调用代码，那将会很棒

我的API终点是这样的

https://sam-app-dot-new-dev-merge.appspot.com/api/location/workLocationId?workOrderLocationId=950

（我使用此网址通过邮递员运行服务）

Answer 1

使用rest模板在内部点击API并从中获取响应。

 RestTemplate restTemplate = new RestTemplate();
 ResponseEntity<?> response= restTemplate.exchange ("https://sam-app-dot-new-dev-merge.appspot.com/api/location/workLocationId?workOrderLocationId=950", HttpMethod.GET, null, Void.class);

您将从响应对象中的api获得完整响应。

Answer 2

让我自己回答这个问题

谷歌的文档不清楚（那是我很好）

在你能够运行之前你需要下载gc sdk并配置它

https://cloud.google.com/docs/authentication/

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

import com.google.api.client.googleapis.auth.oauth2.GoogleAuthorizationCodeFlow;
import com.google.api.client.googleapis.auth.oauth2.GoogleCredential;
import com.google.api.client.googleapis.services.GoogleClientRequestInitializer;
import com.google.api.client.http.GenericUrl;
import com.google.api.client.http.HttpRequest;
import com.google.api.client.http.HttpRequestFactory;
import com.google.api.client.http.HttpRequestInitializer;
import com.google.api.client.http.HttpResponse;
import com.google.api.client.http.HttpTransport;

;

/**
 * 
 * @author sameer.ali
 *
 */
public class AuthenticationManager {

    private  String apiAccessToken  = null;
    private String privateKeyId  = null;

    public  HttpResponse getAuthentication() throws IOException {

        GoogleCredential credential = GoogleCredential.getApplicationDefault();
        apiAccessToken = credential.getAccessToken();
        System.out.println("Token **********" + apiAccessToken);
        credential.getServiceAccountPrivateKey();
        privateKeyId = credential.getServiceAccountPrivateKeyId();
        System.out.println(" privateKeyId *************" + privateKeyId);
        HttpTransport httpTransport= credential.getTransport();
        HttpRequestFactory httReqFactory= httpTransport.createRequestFactory(credential);
        GenericUrl url = new GenericUrl("https://your_url/api/location/workLocationId?workOrderLocationId=9544");
        HttpRequest req = httReqFactory.buildGetRequest(url);
        req.getHeaders().setContentType("application/json");
        HttpResponse response = req.execute();
        System.out.println("service response" + response.getContent().toString());
//      HttpRequestInitializer httpRequestInitializer = new HttpRequestInitializer();
//      httpTransport.createRequestFactory(initializer)
//      
        ///new GoogleAuthorizationCodeFlow().;

        return response;
    }

    public static void main(String[] args){

        AuthenticationManager authM = new AuthenticationManager();
        try{
            HttpResponse response = authM.getAuthentication();
            InputStreamReader reader = new InputStreamReader(response.getContent());
            BufferedReader in = new BufferedReader(reader);

            String readed;
            while ((readed = in.readLine()) != null) {
                System.out.println(readed);
            }



//               GoogleAuthorizationCodeFlow flow =  return new GoogleAuthorizationCodeFlow.Builder(HTTP_TRANSPORT, JSON_FACTORY,
//                      getClientCredential(), Collections.singleton(CalendarScopes.CALENDAR)).setDataStoreFactory(
//                      DATA_STORE_FACTORY).setAccessType("offline").build();
//                
        //  GoogleAuthorizationCodeFlow flow =  return new GoogleAuthorizationCodeFlow.

        }catch(Exception e){
            e.printStackTrace();
        }
//      String token = authM.getAuthentication();

    }

}

忽略代码评论

Answer 3

gc cloud sdk configuration

C:\Users\sameer.ali>gcloud -version

错误：（gcloud）论点太少了用法：gcloud [可选标志] 组可能是app | auth |组件|计算|配置| 容器|数据流| dataproc |数据存储| debug | 部署经理| dns | iam | ml-engine | 组织|项目|服务管理| 来源| sql |话题命令可能是docker |反馈|帮助|信息| init |版本

有关此命令及其标志的详细信息，请运行： gcloud --help

C:\Users\sameer.ali>gcloud -version

错误：（gcloud）论点太少了用法：gcloud [可选标志] 组可能是app | auth |组件|计算|配置| 容器|数据流| dataproc |数据存储| debug | 部署经理| dns | iam | ml-engine | 组织|项目|服务管理| 来源| sql |话题命令可能是docker |反馈|帮助|信息| init |版本

有关此命令及其标志的详细信息，请运行： gcloud --help

C:\Users\sameer.ali>gcloud beta auth application-default login

您当前没有安装此命令组。使用它需要安装组件：β

重启命令： $ gcloud组件安装测试版

在新窗口中安装组件。

安装完成后请重新运行此命令。 $ C：\ toolkit \ google-cloud-sdk \ bin .. \ lib \ gcloud.py beta auth application-default login

C:\Users\sameer.ali>gcloud beta auth application-default login

您的浏览器已开启访问：

https://accounts.google.com/o/oauth2/auth?redirect_uri=http%3A%2F%2Flocalhost%3A8085%2F&prompt=select_account&response_type=code&client_id=764086051850-6qr4p6gpi6hn506pt8ejuq83di341hur.apps.googleusercontent.com&scope=https%3A%2F%2Fwww.googleapis.com%2Fauth%2Fuserinfo.email+https%3A%2F%2Fwww.googleapis.com%2Fauth%2Fcloud-platform&access_type=offline

凭据保存到文件：[C：\ Users \ sameer.ali \ AppData \ Roaming \ gcloud \ application_default_credentials.json]

任何请求的库都将使用这些凭据应用程序默认凭据。

C：\用户\ sameer.ali＆GT;

如何访问部署在谷歌云/应用程序引擎上的休息Apis

3 个答案: