无法通过RXJAVA Android中的Wrapper类从REST API中获取数据

Question

我正在通过REST API注册用户。我正在使用RXJAVA和MVVM体系结构模式进行此操作。 User对象包装在称为RegisterResource类的包装器类的周围。它显示如下错误： java.lang.IllegalStateException：应为BEGIN_OBJECT，但位于第1行第2列路径$

regUser.setValue(RegisterResource.loading((User)null));
    final LiveData<RegisterResource<User>> source = LiveDataReactiveStreams.
            fromPublisher(registerApi.
                    registerUser(email, name, password)


                    .onErrorReturn(new Function<Throwable, User>() {
                        @Override
                        public User apply(Throwable throwable) throws Exception {
                            User errorUser = new User();
                            Log.d(TAG, "apply: "+ throwable.getMessage());
                            errorUser.setEmail("-1");
                            Log.d(TAG, "apply: Error " + errorUser.getEmail());
                            return errorUser;
                        }
                    })

                    .map(new Function<User, RegisterResource<User>>() {
                @Override
                public RegisterResource<User> apply(User user) throws Exception {
                    if (user.getEmail().equals("-1")) {
                        return RegisterResource.error("Could not Register", (User) null);
                    }
                    Log.d(TAG, "apply:  Map Function " + user.getEmail());
                    return RegisterResource.authenticated(user);
                }
            }).subscribeOn(Schedulers.io()));

    regUser.addSource(source, new Observer<RegisterResource<User>>() {
        @Override
        public void onChanged(RegisterResource<User> userRegisterResource) {
            regUser.setValue(userRegisterResource);
            regUser.removeSource(source);
        }
    });

REST API的结构为：

{"id":0,"unique_id":2,"name":"Sam 000","email":"sam@gmail.com","encrypted_password":"282492b281b968bc33b361ed8b2d3ad1e2fe861e0ec85d1c7549c626bcddc42428asdfasdfasfsfasfasfsfasfas135be30ffswjioiuias47911e8502ec1b830b21af7a4a6f24d3f733asdasjyowah00dbb4409e890c92cb","salt":"9fc29dljshdojhaspkdpqb25bda4sarfwdgAe8b","created_at":"2019-05-24T08:58:18.000Z","updated_at":"2019-05-24T08:58:18.000Z"}

活动如下

    private void subscribeObservers(){
    registerViewModel.observeUser().observe(this, new Observer<RegisterResource<User>>() {
        @Override
        public void onChanged(RegisterResource<User> userRegisterResource) {
            if(userRegisterResource !=null){

                switch (userRegisterResource.status) {

                    case LOADING:{
                        showProgressBar(true);
                        break;}
                    case AUTHENTICATED: {
                        showProgressBar(false);
                        Log.d(TAG, "onChanged:  Registration SUCCESS : " + userRegisterResource.data.getEmail());
                        onRegistrationSuccess();
                        Toast.makeText(RegisterActivity.this, "Success", Toast.LENGTH_SHORT).show();
                        break;
                    }
                    case ERROR: {
                        showProgressBar(false);
                        Log.d(TAG, "onChanged: Error: " + userRegisterResource.message);
                        Toast.makeText(RegisterActivity.this, userRegisterResource.message , Toast.LENGTH_SHORT).
                                show();
                        break;
                    }
                    case NOT_AUTHENTICATED: {
                        showProgressBar(false);
                        break;
                    }
                }
            }
        }
    });
}