Question

我正在使用Google的Mobile Backend Starter开发一个项目，每当我尝试在除了用于播放启动器附带的消息的字符串之外的任何字符串上设置subscribeToCloudMessage()时我都会收到错误。此代码有效：

CloudCallbackHandler<List<CloudEntity>> broadcastHandler =
new CloudCallbackHandler<List<CloudEntity>>() {
@Override
public void onComplete(List<CloudEntity> results) {
}
};
mCloudBackend.subscribeToCloudMessage(
CloudBackendMessaging.TOPIC_ID_BROADCAST, broadcastHandler);

此代码不会：

CloudCallbackHandler<List<CloudEntity>> handler =
new CloudCallbackHandler<List<CloudEntity>>() {
@Override
public void onComplete(List<CloudEntity> results) {

}
};
mCloudBackend.subscribeToCloudMessage(
"foo", handler);

这是错误错误：

com.google.api.client.googleapis.json.GoogleJsonResponseException: 400 Bad Request
 {
   "code": 400,
   "errors": [
     {
       "domain": "global",
       "message": "SubscriptionIDs: String properties must be 500 characters or less.  Instead, use com.google.appengine.api.datastore.Text, which can store strings of any length.",
       "reason": "badRequest"
     }
   ],
   "message": "SubscriptionIDs: String properties must be 500 characters or less.  Instead, use com.google.appengine.api.datastore.Text, which can store strings of any length."
 }
    at com.google.api.client.googleapis.services.json.AbstractGoogleJsonClientRequest.newExceptionOnError(AbstractGoogleJsonClientRequest.java:111)
    at com.google.api.client.googleapis.services.json.AbstractGoogleJsonClientRequest.newExceptionOnError(AbstractGoogleJsonClientRequest.java:38)
    at com.google.api.client.googleapis.services.AbstractGoogleClientRequest$1.interceptResponse(AbstractGoogleClientRequest.java:312)
    at com.google.api.client.http.HttpRequest.execute(HttpRequest.java:1042)
    at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.executeUnparsed(AbstractGoogleClientRequest.java:410)
    at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.executeUnparsed(AbstractGoogleClientRequest.java:343)
    at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.execute(AbstractGoogleClientRequest.java:460)
    at com.google.cloud.backend.core.CloudBackend.list(CloudBackend.java:314)
    at com.google.cloud.backend.core.CloudBackendAsync.access$8(CloudBackendAsync.java:1)
    at com.google.cloud.backend.core.CloudBackendAsync$9.callBackend(CloudBackendAsync.java:270)
    at com.google.cloud.backend.core.CloudBackendAsync$9.callBackend(CloudBackendAsync.java:1)
    at com.google.cloud.backend.core.CloudBackendAsync$BackendCaller.run(CloudBackendAsync.java:402)

非常感谢任何帮助。

Google Mobile Backend Starter subscribeToCloudMessage错误代码400

0 个答案: