Question

我正在使用以下页面上的示例代码尝试基于GAE的后端： https://github.com/GoogleCloudPlatform/gradle-appengine-templates/tree/master/GcmEndpoints

已经能够部署后端，我可以查看＆amp;通过appspot.com链接 - project-id.appspot.com

在API资源管理器上执行API

当我执行客户端应用程序（基于Android）并致电时 regService.register(regId).execute(); 在服务器端，我在Google Developer Console上获得以下日志条目 -

"POST /registration/v1/registerDevice/APA91bHCCvjkMFdvf6YHh_rbdqdKMYoRnwm6iswQtTpztwCfNVWq_7xwSq1y9naiipYmfTrREInybypeLb5mc7LCzYGBSpC9jFM-Co_6xGUBiEjLyo1UT375ak7p0nrOiTdHFNwW7r31WYQJP7ojigRLxBTYvST4XTeNIufD6GHb3SbDFGl1hsc HTTP/1.1" 404 0 - "20773xxxxxxx Google-HTTP-Java-Client/1.17.0-rc (gzip)" "verlllll-auyyyy-zzz.appspot.com" ms=19 cpu_ms=0 app_engine_release=1.9.7 trace_id=ddfbcf4e13e27e2aa2a6c5e77bb8cc6f

其中：

registration / v1 / registerDevice /是后端服务的API /版本/方法
APA91bHCCvjkMFdvf6YHh_rbdqdKMYoRnwm6iswQtTpztwCfNVWq_7xwSq1y9naiipYmfTrREInybypeLb5mc7LCzYGBSpC9jFM-Co_6xGUBiEjLyo1UT375ak7p0nrOiTdHFNwW7r31WYQJP7ojigRLxBTYvST4XTeNIufD6GHb3SbDFGl1hsc ..是gcm.register返回的设备注册ID（SENDER_ID）; gcm的类型为GoogleCloudMessaging

20773xxxxxxx or SENDER_ID是Google Developer Console上提供的项目编号。＆安培; verlllll-auyyyy-zzz.appspot.com是项目ID。

您能否告诉我为什么我在回复中收到HTTP / 1.1 404？

提前致谢..

共享regService的构建 -

public class GcmRegistrationAsync extends AsyncTask<Context, Void, String> {
private Registration regService;    // A Stub API from Server
private GoogleCloudMessaging gcm;
private Context context;

// TODO: change to your own sender ID to Google Developers Console project 
// number, as per instructions above
private static final String SENDER_ID = "20773xxxxxxx";

public void GcmRegistrationAsyncTask(int i) {
    Registration.Builder builder = new  Registration.Builder(AndroidHttp.newCompatibleTransport(), new AndroidJsonFactory(), null)
    // Need setRootUrl and setGoogleClientRequestInitializer only for local testing, 
    // otherwise they can be skipped
    .setRootUrl("https://verlllll-auyyyy-zzz.appspot.com")
    .setGoogleClientRequestInitializer(new GoogleClientRequestInitializer() {
        @Override
        public void initialize(AbstractGoogleClientRequest<?> abstractGoogleClientRequest) throws IOException {
            abstractGoogleClientRequest.setDisableGZipContent(true);
        }
    });

    i = this.test();
    builder.setApplicationName(SENDER_ID);
    regService = builder.build();
}

public int test () {
    return 1;
}

@Override
protected String doInBackground(Context... params) {
    int i = params.length;
    context = (Context) params[0];

    String msg = "test";
    try {
        if (gcm == null) {
            gcm = GoogleCloudMessaging.getInstance(context);
        }
        String regId = gcm.register(SENDER_ID);
        msg = "Device registered, registration ID=" + regId;

        // You should send the registration ID to your server over HTTP,
        // so it can use GCM/HTTP or CCS to send messages to your app.
        // The request to your server should be authenticated if your app
        // is using accounts.
        regService.register(regId).execute();

    } catch (IOException ex) {
        ex.printStackTrace();
        msg = "Error: " + ex.getMessage();
    }
    return msg;
}

}

在MyActivity.java中

protected void onCreate(Bundle savedInstanceState) {
:
:
    gcmRegistrationAsync = new GcmRegistrationAsync();
    gcmRegistrationAsync.GcmRegistrationAsyncTask(1);
    gcmRegistrationAsync.execute(this);
}

Answer 1

要连接到端点，您必须与https连接，如果您与http连接（在您的setUrl中），则会收到404错误。

此外，您的代码可能看起来更像：

Registration.Builder builder = new  Registration.Builder(AndroidHttp.newCompatibleTransport(), new AndroidJsonFactory(), null);

rootUrl不需要设置，默认情况下它使用你的appspot位置，在本地运行时，将端点指向你的devapp服务器（app引擎本地测试服务器）很有用。

禁用压缩的代码也只是用于与devapp服务器兼容

使用Google Cloud Messaging的Google App Engine后端

1 个答案: