无法从客户端使用Google Cloud Endpoint插入

Question

我一直在尝试使用Google Cloud Endpoints为我的应用设置一个后端，在我实际上尝试将实体插入数据存储之前，一切似乎都进行得很好。

我正在尝试使用生成的端点将GenericBike对象插入数据存储区，并且虽然代码可以编译并且似乎可以成功运行，但是当我检查项目网页时实际上什么也没有插入。

这是我实际插入的代码。

private class AddGenericBikeAsyncTask extends AsyncTask<GenericBike, Void, Void> {
    @Override
    protected Void doInBackground(GenericBike... params) {
        GenericBikeApi.Builder builder = new GenericBikeApi.Builder(AndroidHttp.newCompatibleTransport(),
                new AndroidJsonFactory(), null)
                .setRootUrl("https://banded-coder-125919.appspot.com/_ah/api/");
        GenericBikeApi service = builder.build();
        try {
            GenericBike bike = params[0];
            Log.e("Debug", "Inserting bike...");
            service.insert(bike);
            Log.e("Debug", "Done inserting bike.");
        } catch (IOException e) {e.printStackTrace(); }
        return null;
    }
}

这就是我所说的

if (mGenericBikes == null) { // we need to preload the database still
        for (int i=0; i<10; i++) {
            GenericBike bike = new GenericBike();
            bike.setId(new Long(i+1));
            new AddGenericBikeAsyncTask().execute(bike);
        }
    }

如果有帮助，这是我的GenericBike实体。

@Entity
public class GenericBike {

@Id Long mId;
boolean mAtStation;

public GenericBike() {
    mAtStation = true;
}

public Long getId() {
    return mId;
}

public void setId(Long id) {
    mId = id;
}

public boolean isAtStation() {
    return mAtStation;
}

public void setAtStation(boolean atStation) {
    mAtStation = atStation;
}

编辑：这是为insert（）方法生成的端点代码

/**
 * Inserts a new {@code GenericBike}.
 */
@ApiMethod(
        name = "insert",
        path = "genericBike",
        httpMethod = ApiMethod.HttpMethod.POST)
public GenericBike insert(GenericBike genericBike) {
    // Typically in a RESTful API a POST does not have a known ID (assuming the ID is used in the resource path).
    // You should validate that genericBike.mId has not been set. If the ID type is not supported by the
    // Objectify ID generator, e.g. long or String, then you should generate the unique ID yourself prior to saving.
    //
    // If your client provides the ID then you should probably use PUT instead.
    ofy().save().entity(genericBike).now();
    logger.info("Created GenericBike.");

    return ofy().load().entity(genericBike).now();
}

Answer 1

看起来您没有从客户端启动请求。 我相信您需要向客户端lib对象添加.execute（）才能真正启动请求。

更换

service.insert(bike);

与

service.insert(bike).execute();

另外，检查您的App Engine日志也是确认请求确实通过的一个很好的起点。