註冊與後端應用程序失敗發動機的示例代碼

Question

我一直在使用谷歌應用程序引擎的樣品（移動購物助理）https://github.com/GoogleCloudPlatform/MobileShoppingAssistant-sample/tree/master/MobileAssistantAndroidAppEngine。我花了大約一週的時間來設置項目並修復問題（主要與依賴和配置有關）。現在後端部署了，我可以通過api explorer訪問api。我可以執行非受限方法並從服務器獲取響應，但是當我執行管理方法時，即使在打開OAuth時也會收到錯誤。

OK 401 
message: Only authenticated users may invoke this operation 

，所以我認爲這個問題是由於不良的配置

這裏是我做了什麼：

應用gradle.build

apply from: 'config.gradle' 
apply plugin: 'com.android.application' 


android { 
compileSdkVersion 21 
buildToolsVersion "21.1.2" 

defaultConfig { 
    applicationId "com.google.sample.mobileassistant" 
    minSdkVersion 17 
    targetSdkVersion 21 
    versionCode 1 
    versionName "1.0" 
} 
buildTypes { 
    debug { 
     minifyEnabled false 
     proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' 
    } 
} 
compileOptions { 
    sourceCompatibility JavaVersion.VERSION_1_7 
    targetCompatibility JavaVersion.VERSION_1_7 
} 


} 

dependencies { 
compile fileTree(dir: 'libs', include: ['*.jar']) 
compile 'com.android.support:appcompat-v7:21.0.3' 
compile 'com.google.android.gms:play-services:6.5.87' 
compile project(path: ':backend', configuration: 'android-endpoints') 
} 

應用構建配置

buildConfigField "String", "ROOT_URL", 
      "\"https://MY_PROJECT_ID.appspot.com/_ah/api/\"" 

    buildConfigField "boolean", "SIGN_IN_REQUIRED", "true" 

    buildConfigField "String", "SENDER_ID", "\"MY_SENDER_ID\"" 

    buildConfigField "String", "WEB_CLIENT_ID", "\"MY_WEB_CLIENT_ID\"" 

而且build.gradel的後端中，我已經改變了應用程序引擎的SDK版本，從18至30

>>注：機器人工作室的檢查報告，下，appcfg和端點符號無法解析！

buildscript { 
repositories { 
    mavenLocal() 
    mavenCentral() 
} 
dependencies { 
    classpath 'com.google.appengine:gradle-appengine-plugin:1.9.30' 
    } 
} 

repositories { 
mavenCentral(); 
} 

apply plugin: 'java' 
apply plugin: 'war' 
apply plugin: 'appengine' 

sourceCompatibility = JavaVersion.VERSION_1_7 
targetCompatibility = JavaVersion.VERSION_1_7 


dependencies { 
appengineSdk 'com.google.appengine:appengine-java-sdk:1.9.30' 
compile 'com.google.appengine:appengine-endpoints:1.9.30' 
compile 'com.google.appengine:appengine-endpoints-deps:1.9.30' 
compile 'com.google.appengine:appengine-api-1.0-sdk:1.9.30' 
compile 'javax.servlet:servlet-api:2.5' 
compile 'com.googlecode.objectify:objectify:5.1.5' 
compile 'com.ganyo:gcm-server:1.0.2' 
} 

appengine { 
downloadSdk = true 
appcfg { 
    oauth2 = true 
} 
endpoints { 
    getClientLibsOnBuild = true 
    getDiscoveryDocsOnBuild = true 
} 


} 

項目ID在appengine_web.xml以及API密鑰設置。當我運行的客戶端應用程序獲得REG_ID但註冊失敗由於GoogleAuthIOException：

E/MainActivity: Exception=com.google.api.client.googleapis.extensions.android.gms.auth.GoogleAuthIOException 

其從sendRegistrationIdToBackend（）方法拋出：

/** 
* Sends the registration ID to your server over HTTP, so it can use 
* GCM/HTTP or CCS to send messages to your app. Not needed for this 
* demo since the device sends upstream messages to a server that echoes 
* back the message using the 'from' address in the message. 
*/ 
private void sendRegistrationIdToBackend() { 
    try { 
     shoppingAssistantAPI.registrations() 
       .registerDevice(regId).execute(); 
     // Persist the registration ID - no need to register again. 
     storeRegistrationId(context, regId); 
    } catch (IOException e) { 
     LOG.warning("Exception when sending registration ID to the " 
       + "backend = "+ e.getMessage()); 
     // If there is an error, we will try again to register the 
     // device with GCM the next time the MainActivity starts. 
    } 
} 

現在這個方法調用

shoppingAssistantAPI.registrations() 
       .registerDevice(regId).execute(); 

但是在後端的源代碼有不同的類名和方法簽名...類Registration.class與getter和setter方法& RegistrationEndpoint枝條registerDevice（字符串的RegID，UserAccount用戶）

而這正是我感到困惑？ 有人可以向我解釋這個代碼有什麼問題，以及我如何讓客戶端應用程序正確地與後端通信。

--- UPDATE ---

客戶端應用程序請求的方法（chickIn法），這需要一個說法，尚不可用（REGID）這種奇怪的！

03-01 20:07:48.898 25083-25359/com.google.sample.mobileassistant W/MainActivity: Exception when checking in =com.google.api.client.googleapis.extensions.android.gms.auth.GoogleAuthIOException 
03-01 20:07:51.581 25083-25359/com.google.sample.mobileassistant W/MainActivity: Exception when sending registration ID to the backend = null 
03-01 20:07:51.601 25083-25083/com.google.sample.mobileassistant I/MainActivity: Device registered, registration ID= APA91bF2eC6o9_KBI2coPMqqXE94lECzeYLnrD30nmK2PvmoHg3pFfVuxYkLir3HPV07gq-n-UZZOsM1EUSQOfR8WnWYaG1iDFbx0IuIOLNKIMdeDimPAH5H7DURDqZZ8hWdrsStnS4sEHHTB155bx91L7FpV0txHA 
03-01 20:07:52.292 25083-25359/com.google.sample.mobileassistant E/MainActivity: Exception=com.google.api.client.googleapis.extensions.android.gms.auth.GoogleAuthIOException 

Answer 1

這個工作從Android應用程序訪問非受限API方法......這可能是別人，因爲的OAuth的人正在遭受樂於助人......

我加服務器：CLIENT_ID：到服務器客戶端ID和它的工作:)

http://android-developers.blogspot.com/2013/01/verifying-back-end-calls-from-android.html

在Android應用

您需要致電Google Play服務 GoogleAuthUtil類才能獲取ID令牌;該過程如獲取訪問令牌所述爲 。還有一點額外的魔力：getToken（email，scope）方法的scope參數的 值。它的 必須是字符串受衆：server：client_id：X，其中X是 Web應用程序的客戶端ID，如上所述。如果我們的客戶端ID 是上面給出的示例值，則範圍參數 的值將爲 audience：server：client_id：9414861317621.apps.googleusercontent.com。