android – MalformedJsonException：使用JsonReader.setLenient(true)接受第1行第1列路径的格式错误的JSON

com.google.gson.stream.MalformedJsonException: Use JsonReader.setLenient(true) to accept malformed JSON at line 1 column 1 path $

到目前为止,我试图通过使用以下链接的答案来解决它：
1)MalformedJsonException with Retrofit API?
2)Use JsonReader.setLenient(true) to accept malformed JSON at line 1 column 1 path $

这是我的代码：

改造界面：

public interface ServerApi {
    @POST("/register/test")
    Call<User> createAccount(@Body User user);
}

具有连接内容的MainActivity：

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        User user= new User("[email protected]","vercode100");
        sendNetworkRequest(user);
    }

    private void sendNetworkRequest(User user){

        //create Retrofit instance
        Retrofit.Builder builder= new Retrofit.Builder()
                .baseUrl("http://localhost:8080")
                .addConverterFactory(GsonConverterFactory.create());

        Retrofit retrofit= builder.build();

        //Get client and call object for the request
        ServerApi client= retrofit.create(ServerApi.class);
        Call<User> call= client.createAccount(user);

        call.enqueue(new Callback<User>() {
            @Override
            public void onResponse(Call<User> call, Response<User> response) {
            }

            @Override
            public void onFailure(Call<User> call, Throwable t) {
            }
        });

    }
}

用户类：

public class User {
    private String email;
    private String verificationCode;

    public User(String email, String verificationCode) {
        this.email = email;
        this.verificationCode = verificationCode;
    }

}

服务器端期望JSON像这样：

{
    "email" : "user.email",
    "verificationCode" : "123456"
}

我知道stackoverflow中有一些常见的问题,但它们都没有完全解决我的问题.

您的服务器是否响应以下内容？因为这就是你用Call< User>进行改造的原因. createAccount(@Body用户用户)

{
“email” : “user.email”,
“verificationCode” : “123456” }