Sign Up

Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.

Have an account? Sign In
Continue with Google
Continue with Facebook
or use


Have an account? Sign In Now

Sign In

Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.

Sign Up Here
Continue with Google
Continue with Facebook
or use


Forgot Password?

Don't have account, Sign Up Here

Forgot Password

Lost your password? Please enter your email address. You will receive a link and will create a new password via email.


Have an account? Sign In Now

Sorry, you do not have a permission to ask a question, You must login to ask question.

Continue with Google
Continue with Facebook
or use


Forgot Password?

Need An Account, Sign Up Here

Please briefly explain why you feel this question should be reported.

Please briefly explain why you feel this answer should be reported.

Please briefly explain why you feel this user should be reported.

Sign InSign Up

Stack Ask

Stack Ask Logo Stack Ask Logo

Stack Ask Navigation

  • Home
  • About Us
  • Contact Us
Search
Ask A Question

Mobile menu

Close
Ask a Question
  • Home
  • About Us
  • Contact Us
Home/ Questions/Q 1630
Next
Answered
andrenajordan
  • 0
andrenajordanBeginner
Asked: September 16, 20212021-09-16T16:14:41+00:00 2021-09-16T16:14:41+00:00In: Java

Xử lí bất đồng bộ Asynchronous trong RESTful API

  • 0

Em có 2 đoạn code như sau:

btn_start.setOnClickListener(view -> {
    if (txt_cms_address.getText() != null) {
        cmsAddress = txt_cms_address.getText().toString();
        Log.d(TAG, "CMS" + cmsAddress);
        APIRegisterDisplay();
//                APISchedule();
//                APIGetRequiredFile();
        if (checkConnect) {
//                    APIGetRequiredFile();
//                    APISchedule();
            Log.d(TAG, "check ok");
        } else {
            Log.d(TAG, "check k ok");
        }
    } else {
        Toast.makeText(this, "Address must not be empty!!", Toast.LENGTH_SHORT).show();
    }
});

Với các hàm APIRegisterDisplay(), APIGetRequiredFile(), APISchedule() là các asynchronous để dùng restful api bằng Retrofit2.

Vấn đề ở đây, khi em bấm vào btn, em chạy APIRegisterDisplay() trước, nếu kq từ api trả về = 0, hay biến checkConnect == true thì tiếp tục chạy 2 hàm APIGetRequiredFile() và APISchedule()

Vì là bất đồng bộ nên em không biết xử lí thế nào. Nếu trong if(checkConnect) ở đoạn code đầu, thì nó luôn trả về “check ko ok”. Còn nếu bỏ trong if (display != null) ở đoạn code 2, thì hình như nó không chạy.

Mọi người có cách hay keyword nào về xử lí cái này có thể giúp em với ạ.
Em xin cảm ơn.

question
  • 6 6 Answers
  • 110 Views
  • 0 Followers
  • 0
Answer
Share
  • Facebook
  • Report

6 Answers

  • Voted
  • Oldest
  • Recent
  1. Best Answer
    tvd12 Enlightened
    2021-09-17T05:52:57+00:00Added an answer on September 17, 2021 at 5:52 am

    anh thấy em chỉ cần chuyển 2 hàm APIGetRequiredFile() và APISchedule() vào onResponse là được, em đã thử chưa em?

    • 2
    • Share
      Share
      • Share on Facebook
      • Share on Twitter
      • Share on LinkedIn
      • Share on WhatsApp
      • Report
    • andrenajordan Beginner
      2021-09-17T08:48:13+00:00Replied to answer on September 17, 2021 at 8:48 am

      em cảm ơn anh, nó hoạt động đúng rồi
      lỗi của em ở dòng if trong APIRegisterDisplay, nhờ anh em mới check lại và thấy chỗ sai ạ

      • 0
      • Share
        Share
        • Share on Facebook
        • Share on Twitter
        • Share on LinkedIn
        • Share on WhatsApp
        • Report
  2. andrenajordan Beginner
    2021-09-16T16:15:17+00:00Added an answer on September 16, 2021 at 4:15 pm
    This answer was edited.

    và đây là đoạn code thứ 2

    private void APIRegisterDisplay() {
    
        RegisterDisplay registerDisplay = new RegisterDisplay(abc, xyz ...);
        
        apiService = RetrofitClient.getClient(cmsAddress).create(APIService.class);
        apiService.Register(registerDisplay).enqueue(new Callback() {
            @Override
            public void onResponse(@NonNull Call call, @NonNull Response response) {
                if (response.isSuccessful()) {
                    assert response.body() != null;
                    JsonObject json = response.body().getAsJsonObject("response").getAsJsonObject("display").getAsJsonObject("$");
    
                    Gson gson = new GsonBuilder().setPrettyPrinting().create();
                    String string = gson.toJson(json);
                    Display display = gson.fromJson(string, Display.class);
    
                    if (display != null) {
                        if (display.getCode().equals("0")) {
                            //code == 0 Display is active and ready to start
                            Toast.makeText(getApplicationContext(), display.getMessage(), Toast.LENGTH_SHORT).show();
                            Log.d(TAG, "get display successful");
    
                            checkConnect = true;
                        } else {
                            Toast.makeText(getApplicationContext(), display.getMessage(), Toast.LENGTH_SHORT).show();
                        }
                    } else {
                        Log.d(TAG, "failed");
                        Toast.makeText(getApplicationContext(), "Unable to connect to CMS!!", Toast.LENGTH_SHORT).show();
                    }
                }
            }
    
            @Override
            public void onFailure(@NonNull Call call, @NonNull Throwable t) {
                Log.e(TAG, "REGISTER_DISPLAY:" + t.getLocalizedMessage());
            }
        });
    }
    

    Các bác chú ý biến checkConnect. Biến này để kiểm tra api trả về display.getCode() có bằng 0 (nghĩa là thành công) hay không.

    • 0
    • Share
      Share
      • Share on Facebook
      • Share on Twitter
      • Share on LinkedIn
      • Share on WhatsApp
      • Report
  3. andrenajordan Beginner
    2021-09-16T16:16:31+00:00Added an answer on September 16, 2021 at 4:16 pm

    Bác nào hướng dẫn em post code để em edit lại với ạ, em dùng thẻ code trong editor nó sao sao ấy 🙁

    • 0
    • Share
      Share
      • Share on Facebook
      • Share on Twitter
      • Share on LinkedIn
      • Share on WhatsApp
      • Report
    • tvd12 Enlightened
      2021-09-16T16:21:02+00:00Replied to answer on September 16, 2021 at 4:21 pm
      This answer was edited.

      em dùng thẻ pre nhé, đang có 1 lỗi phát sinh liên quan đến phần format code, anh đang tìm cách khắc phục em nhé

      • 1
      • Share
        Share
        • Share on Facebook
        • Share on Twitter
        • Share on LinkedIn
        • Share on WhatsApp
        • Report
      • andrenajordan Beginner
        2021-09-16T16:21:47+00:00Replied to answer on September 16, 2021 at 4:21 pm

        à ra vậy, em cảm ơn ạ

        • 0
        • Share
          Share
          • Share on Facebook
          • Share on Twitter
          • Share on LinkedIn
          • Share on WhatsApp
          • Report

You must login to add an answer.

Continue with Google
Continue with Facebook
or use


Forgot Password?

Need An Account, Sign Up Here

Sidebar

Ask A Question

Stats

  • Questions 826
  • Answers 1k
  • Best Answers 80
  • Users 338
  • Popular
  • Answers
  • monkey

    [Deep Learning] Làm thế nào để xác định được cái ...

    • 16 Answers
  • Thành Vương

    Bug sai đường dẫn khi config ckeditor lên live

    • 14 Answers
  • Tú Trần Anh

    [Ezyfox Server] Unity game client không gửi được command khi ...

    • 12 Answers
  • tvd12
    tvd12 added an answer 1. Anh không hiểu tại sao em lại cần phải… February 4, 2023 at 7:50 am
  • tvd12
    tvd12 added an answer Cái này anh thấy là em đang gửi dữ liệu… February 4, 2023 at 7:46 am
  • monkey
    monkey added an answer Đây em: class Event{} class Room{} class EventRoom{eventId, roomId} February 2, 2023 at 9:07 am

Related Questions

  • Thân Nam

    Không submit được File trên postman

    • 1 Answer
  • Hồng Quân Nguyễn

    Synchronous Redis trong Spring boot

    • 1 Answer
  • Hồng Quân Nguyễn

    kafka serializer và deserializer

    • 3 Answers

Top Members

tvd12

tvd12

  • 76 Questions
  • 1k Points
Enlightened
monkey

monkey

  • 122 Questions
  • 1k Points
Enlightened
Nguyễn Thái Sơn

Nguyễn Thái Sơn

  • 205 Questions
  • 307 Points
Enlightened

Trending Tags

#formatdate .net .net core .net oop abstract class access app access token ai analytics android ansible anti-flooding apache poi api app architecture artificial intelligence assembly async asyncawait atomicboolean authentication backend backend nestjs background bash script batch bean big project binding bitcoin blockchain blog boot-nodes branch british btree bucket4j buffered build bundle c# c# .net cache caching callback career career path cast centos chat cloud cloud reliability commit communication company computer science concurrent config-css connection pool content-disposition contract convert date to number cookie cors cosmos cosmos-sdk crawl data cron css database database migration datasource datastructure deadlock decentralized exchange deep learning deploy contract design-pattern design patterns devops dex di distraction programing dns docker download draw.io du học duration dữ liệu lớn eclip editor elasticsearch email employee english erc20 erc721 estimation eth ethereum ethereum login excel exception exception handle exception handler executor export compliance extensions exyfox ezyfox ezyfox-boot ezyfox-server ezyfoxserver ezyhttp ezymq-kafka ezyredis facebook fe filter floating point flutter format json freetank french front-end frontend fullstack fulltextsearch future gallery game game-box game-room game-server gateway get get file zip git glide go golang google gorilla graduation thesis graphql grapql grpc guide h2 database handy terminal hazelcast hibernate hibernateconfig html http https hyperloglog image index indexing integration-test intellij interface interview io ioc ipfs isolate issue it java java core javacore javascript java spring javaw java web jenkins jetbrains job join jotform jpa js json json file jsonproperty json to object jsp jsp & servlet junit-test jvm jwt kafka keep promise kerberos keycloak kotlin language languague library list load-balancing load balancer lock log log4j log4j-core login lưu trữ machine learning macos mail mail template main maria db math maven merge message queue messaging metamask microservice microservices migration mobile model mongo monitoring mq msgpack multi-threading multiple tenant multithread multithreading mysql n naming naming convention nan netcore netty networking nft nft game nginx nio node.js nodejs non-blocking io null oop opensource optimize oracle orm otp message paginaiton pagination pancakeswap panic partition pdf pgpool phỏng vấn plugin pointer postgresql postman pre private_key procedure profile programming project management promise properties push-noti push message android push notification python python unicode qrcode question queue rabbitmq reactive reactjs reactjs download readmoretextview recyclerview redis refactor refresh token regex replica repository request resilence4j resource rest resttemplate roadmap ropssten ropsten round robin rust rxjava s3 schedule scheduled scheduled spring boot search security send email send mail server servlet session shift jis singleton sjis slack smart contract soap socket socket server soft delete solution sosanh spring spring-boot-test spring-jpa spring aop springboot spring boot spring data jpa spring redis springsecurity spring security springwebflux mysql spring websocket spring websocket cors sql sql server sse ssl email stackask storage stream stream api stress test structure trong spring boot study synchronize synchronized system environment variables test thread threadjava threadpool thread pool thymeleaf tomcat totp tracking location transaction transfer transfer git udp uniswap unit test unity upload upload file utf-8 file validate validate date vector view volatile vue vue cli watermark web web3 web3 client webassembly webflux webpack websocket windows 11 winforms work zip file zookeeper

Footer

Stack Ask

Stack Ask is where Developers Ask & Answers. It will help you resolve any questions and connect you with other people.

About Us

  • Meet The Team
  • About Us
  • Contact Us

Legal Stuff

  • Terms of Service
  • Privacy Policy
  • Cookie Policy

Help

Follow

© 2021 Stack Ask. All Rights Reserved
Powered by youngmonkeys.org