關(guān)于云平臺(tái)控制的實(shí)現(xiàn)

平臺(tái)選擇

Android實(shí)現(xiàn)平臺(tái)：Android student 4.2.2

硬件選擇：Keil （芯片為Stm32F103ZET6）

移動(dòng)云（ONENET）：有清晰的文檔使用，結(jié)構(gòu)簡(jiǎn)單，適合快速學(xué)習(xí)與集成自己項(xiàng)目

接入云端數(shù)據(jù)：

Android端實(shí)現(xiàn)：

步驟一：導(dǎo)入網(wǎng)絡(luò)請(qǐng)求包

    /*okhttp 插件*/
    implementation 'com.squareup.okhttp3:okhttp:5.0.0-alpha.2'
    /*Retrofit庫(kù)*/
    implementation 'com.squareup.retrofit2:retrofit:2.9.0'
    /*Retrofit嵌套請(qǐng)求 rejava3*/
    implementation "io.reactivex.rxjava2:rxjava:2.1.0" // 必要rxjava2依賴
    implementation 'com.squareup.retrofit2:adapter-rxjava:2.9.0'
    implementation 'com.squareup.retrofit2:adapter-rxjava2:2.3.0' 
    // 必要依賴，和Rxjava結(jié)合必須用到，下面會(huì)提到
    implementation 'com.squareup.okhttp3:logging-interceptor:3.8.1'

導(dǎo)入包說(shuō)明

Okhttp3基本使用

Retrofit2 詳解和使用

使用Retrofit+RxJava實(shí)現(xiàn)網(wǎng)絡(luò)請(qǐng)求

步驟二：代碼實(shí)現(xiàn)

運(yùn)用 RXjava 實(shí)現(xiàn)網(wǎng)絡(luò)請(qǐng)求

 /**
     * TODO RX思維
     *  獲取設(shè)備狀態(tài)
     */
    public void RxAsync(){

        //步驟4：創(chuàng)建Retrofit對(duì)象
        Retrofit retrofit = new Retrofit.Builder()
                .baseUrl("http://api.heclouds.com/") // 設(shè)置 網(wǎng)絡(luò)請(qǐng)求 Url
                .addConverterFactory(GsonConverterFactory.create()) //設(shè)置使用Gson解析(記得加入依賴)
                .addCallAdapterFactory(RxJava2CallAdapterFactory.create())
                .build();
        // 步驟5：創(chuàng)建 網(wǎng)絡(luò)請(qǐng)求接口 的實(shí)例
        SB_HttpBinService request = retrofit.create(SB_HttpBinService.class);
        // 步驟6：采用Observable<...>形式 對(duì) 網(wǎng)絡(luò)請(qǐng)求 進(jìn)行封裝
        Observable<Online_json> observable = request.getMessage(State.ApiKey,State.DeviceIDs);
        System.out.println(State.DeviceIDs);
        // 步驟7：發(fā)送網(wǎng)絡(luò)請(qǐng)求
        observable.subscribeOn(Schedulers.io())               // 在IO線程進(jìn)行網(wǎng)絡(luò)請(qǐng)求
                .observeOn(AndroidSchedulers.mainThread())  // 回到主線程 處理請(qǐng)求結(jié)果
                .subscribe(new Observer<Online_json>() {
                    @Override
                    public void onSubscribe(Disposable d) {
                        Log.d("TAG", "開始采用subscribe連接");
                    }

                    @Override
                    public void onNext(@NotNull Online_json online_json) {

                        List<Devices> devices = online_json.getData().getDevices();
                            String o;
                            if (SB_Parameter.AllSUM < online_json.getData().getTotal_count()){
                                int j;
                                j=online_json.getData().getTotal_count()-SB_Parameter.AllSUM ;

                                for (int i = 0; i < j; i++) {
                                    map = new HashMap<>();
                                    map.put("id", "請(qǐng)刷新");
                                    map.put("name","請(qǐng)刷新");
                                    map.put("online","請(qǐng)刷新");
                                    list.add(map);
                                }
                                SB_Parameter.AllSUM = online_json.getData().getTotal_count();
                            }

                            for (int i = 0 ;i<online_json.getData().getTotal_count();i++){
                                if (devices.get(i).getOnline()){

                                    o = "√";
                                }else {
                                    o = "×";
                                }
                                map = list.get(i);
                                map.put("id",  devices.get(i).getId());
                                map.put("name",  devices.get(i).getTitle());
                                map.put("online", o);
                            }

                        mRecyclerView.setAdapter(mRecyclerViewAdapter);
                        Delay.Delay_ms(500);
                        mRecyclerView.setAdapter(mRecyclerViewAdapter);

                    }


                    @Override
                    public void onError(Throwable e) {
                        Log.d("TAG," ,"請(qǐng)求失敗");
                    }

                    @Override
                    public void onComplete() {
                        Log.d("TAG", "請(qǐng)求成功");
                    }
                });
    }

請(qǐng)求成功后的會(huì)返回服務(wù)器端返回的數(shù)據(jù)

{errno=0, data=Data{devices=[Devices{title='led1', online=false, id='735471469'}, Devices{title='DHT11', online=false, id='736585581'}], total_count=2}, error='succ'}

使用?bejson?網(wǎng)頁(yè)進(jìn)行Josn數(shù)據(jù)的解析，運(yùn)用 網(wǎng)站的?JSON生成Java實(shí)體類 功能生成實(shí)體類

在這我把實(shí)體類貼出來(lái)

類 Data

/**
  * Copyright 2021 bejson.com 
  */
package com.example.yt_app.bean.Onenet_online;
import java.util.List;

/**
 * Auto-generated: 2021-07-19 15:40:24
 *
 * @author bejson.com (i@bejson.com)
 * @website http://www.bejson.com/java2pojo/
 */
public class Data {

    private List<Devices> devices;
    private int total_count;
    public void setDevices(List<Devices> devices) {
         this.devices = devices;
     }
     public List<Devices> getDevices() {
         return devices;
     }

    public void setTotal_count(int total_count) {
         this.total_count = total_count;
     }
     public int getTotal_count() {
         return total_count;
     }

    @Override
    public String toString() {
        return "Data{" +
                "devices=" + devices +
                ", total_count=" + total_count +
                '}';
    }
}

類 Devices

/**
  * Copyright 2021 bejson.com 
  */
package com.example.yt_app.bean.Onenet_online;

/**
 * Auto-generated: 2021-07-19 15:40:24
 *
 * @author bejson.com (i@bejson.com)
 * @website http://www.bejson.com/java2pojo/
 */
public class Devices {

    private String title;
    private boolean online;
    private String id;
    public void setTitle(String title) {
         this.title = title;
     }
     public String getTitle() {
         return title;
     }

    public void setOnline(boolean online) {
         this.online = online;
     }
     public boolean getOnline() {
         return online;
     }

    public void setId(String id) {
         this.id = id;
     }
     public String getId() {
         return id;
     }

    @Override
    public String toString() {
        return "Devices{" +
                "title='" + title + ''' +
                ", online=" + online +
                ", id='" + id + ''' +
                '}';
    }
}

類 Online_json

/**
  * Copyright 2021 bejson.com 
  */
package com.example.yt_app.bean.Onenet_online;

/**
 * Auto-generated: 2021-07-19 15:40:24
 *
 * @author bejson.com (i@bejson.com)
 * @website http://www.bejson.com/java2pojo/
 */
public class Online_json {

    private int errno;
    private Data data;
    private String error;
    public void setErrno(int errno) {
         this.errno = errno;
     }
     public int getErrno() {
         return errno;
     }

    public void setData(Data data) {
         this.data = data;
     }
     public Data getData() {
         return data;
     }

    public void setError(String error) {
         this.error = error;
     }
     public String getError() {
         return error;
     }

    @Override
    public String toString() {
        return "Online_json{" +
                "errno=" + errno +
                ", data=" + data +
                ", error='" + error + ''' +
                '}';
    }
}

三個(gè)實(shí)體類寫完之后還有做一件事情

實(shí)現(xiàn) Retrofit 的接口

接口名稱

SB_HttpBinService

/**
 * Created by dell on 2021/7/16.
 */
public interface SB_HttpBinService {

//  此處回調(diào)返回的可為任意類型Call<T>，再也不用自己去解析json數(shù)據(jù)啦?。?！
    Observable<Online_json> getMessage(@Header("api-key") String key, @Query("devIds") String ids );





}

步驟三 ：進(jìn)行網(wǎng)絡(luò)請(qǐng)求獲取數(shù)據(jù)

實(shí)現(xiàn)后效果圖

總結(jié)：

寫的很少，需要學(xué)的東西很多，要多琢磨，努力，多學(xué)

同時(shí)也使用了訊飛語(yǔ)音平臺(tái)，高德平臺(tái)

聯(lián)系方式 微信號(hào)：13648103287