Android登录将带有“api_key”的JSON发送到服务器

Question

Hello I'm a newbie develop android. I am trying to learn about login with JSON. Now my server developer partner ask for me to send a JSON request like below:

{
   "operation":"register",
   "api_key":"123",

   "user":{
        "name":"Wang Jian",
        "email":"[e-mail]",
        "password":"12345678"
   }
}

Now i am asked for add "api_key" to matching his server code. There are code as below Please help me to check whether it would succeed to send a JSON like above.

ServerRequest.java

public class ServerRequest {

private String operation;
private String api_key;
private User user;

public void setOperation(String operation) {
    this.operation = operation;
}

public void setUser(User user) {
    this.user = user;
}

public void setApi_key(String api_key) {
    this.api_key = "123";
}

}

RegisterFragment.java

private void registerProcess(String name, String email,String password){

    Retrofit retrofit = new Retrofit.Builder()
            .baseUrl(Constants.BASE_URL)
            .addConverterFactory(GsonConverterFactory.create())
            .build();

    RequestInterface requestInterface = retrofit.create(RequestInterface.class);

    User user = new User();
    user.setName(name);
    user.setEmail(email);
    user.setPassword(password);
    //user.setApi_key(api_key);
    ServerRequest request = new ServerRequest();
    request.setOperation(Constants.REGISTER_OPERATION);
    request.setApi_key(Constants.KEY);
    request.setUser(user);
    Call<ServerResponse> response = requestInterface.operation(request);

    response.enqueue(new Callback<ServerResponse>() {
        @Override
        public void onResponse(Call<ServerResponse> call, retrofit2.Response<ServerResponse> response) {

            ServerResponse resp = response.body();
            Snackbar.make(getView(), resp.getMessage(), Snackbar.LENGTH_LONG).show();
            progress.setVisibility(View.INVISIBLE);
        }

        @Override
        public void onFailure(Call<ServerResponse> call, Throwable t) {

            progress.setVisibility(View.INVISIBLE);
            Log.d(Constants.TAG, "failed");
            Snackbar.make(getView(), t.getLocalizedMessage(), Snackbar.LENGTH_LONG).show();


        }
    });
}

Constants.java

public class Constants {

public static final String BASE_URL = "http://wangjian.site90.net/";
//public static final String BASE_URL = "http://bravonet.my/ct2/api/";
public static final String REGISTER_OPERATION = "register";
public static final String KEY = "api_key";
public static final String LOGIN_OPERATION = "login";
public static final String CHANGE_PASSWORD_OPERATION = "chgPass";

public static final String SUCCESS = "success";
public static final String FAILURE = "failure";
public static final String IS_LOGGED_IN = "isLoggedIn";

public static final String NAME = "name";
public static final String EMAIL = "email";
public static final String UNIQUE_ID = "unique_id";

public static final String TAG = "Learn2Crack";

}

The code above i just modify from learn2crack original code link to Android Login Registration System with PHP and MySQL (Updated) – Server #1

I'm a really newbie at this stuff so any help will be appreciated. thanks so much!

There are my RequestInterface.java

public interface RequestInterface {

@POST("learn2crack-login-register/")
//@POST("user/")
//@POST("android/login_registration/")
Call<ServerResponse> operation(@Body ServerRequest request);

}

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