FLYSN/app/src/main/java/com/info/sn/service/StepService.java

package com.info.sn.service;

/**
 * 作者 mjsheng
 * 日期 2019/4/1 10:57
 * 邮箱 501802639@qq.com
 * 来自：
 */

import android.app.Service;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.ServiceConnection;
import android.os.Binder;
import android.os.Handler;
import android.os.IBinder;
import android.util.Log;

import androidx.annotation.Nullable;

import com.info.sn.KeepAliveConnection;
import com.info.sn.network.JWebSocketClient;
import com.info.sn.utils.LogUtils;
import com.info.sn.utils.ServiceAliveUtils;
import com.info.sn.utils.Utils;

import org.java_websocket.handshake.ServerHandshake;

import java.net.URI;


/**
 * 主进程 双进程通讯
 *
 * @author LiGuangMin
 * @time Created by 2018/8/17 11:26
 */
public class StepService extends Service {
    public JWebSocketClient client;
    private JWebSocketClientBinder mBinder = new JWebSocketClientBinder();
    private final static String TAG = StepService.class.getSimpleName();

    //用于Activity和service通讯
    public class JWebSocketClientBinder extends Binder {
        public StepService getService() {
            return StepService.this;
        }
    }

    private ServiceConnection mServiceConnection = new ServiceConnection() {
        @Override
        public void onServiceConnected(ComponentName componentName, IBinder iBinder) {
            LogUtils.e(TAG, "StepService:建立链接");
            boolean isServiceRunning = ServiceAliveUtils.isServiceAlice();
            if (!isServiceRunning) {
                Intent i = new Intent(StepService.this, MyDownloadService.class);
                startService(i);
            }
        }

        @Override
        public void onServiceDisconnected(ComponentName componentName) {
            // 断开链接
            startService(new Intent(StepService.this, GuardService.class));
            // 重新绑定
            bindService(new Intent(StepService.this, GuardService.class), mServiceConnection, Context.BIND_IMPORTANT);
        }
    };

    @Nullable
    @Override
    public IBinder onBind(Intent intent) {
        return new KeepAliveConnection.Stub() {
        };
    }

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
//        startForeground(1, new Notification());
        // 绑定建立链接
        bindService(new Intent(this, GuardService.class), mServiceConnection, Context.BIND_IMPORTANT);
        //初始化websocket
        initSocketClient();
        mHandler.postDelayed(heartBeatRunnable, HEART_BEAT_RATE);//开启心跳检测
        return START_STICKY;
    }

    /**
     * 初始化websocket连接
     */
    private void initSocketClient() {
        URI uri = URI.create("ws://47.107.116.173:2345");
//        URI uri = URI.create("ws://echo.websocket.org");
//        URI uri = URI.create("ws://123.207.136.134:9010/ajaxchattest");
        client = new JWebSocketClient(uri) {
            @Override
            public void onMessage(String message) {
                Log.i("JWebSocketClientService", "收到服务器发来的消息：" + message + "?");
            }

            @Override
            public void onOpen(ServerHandshake handshakedata) {
                super.onOpen(handshakedata);
                Log.i("JWebSocketClientService", "websocket连接成功");
            }
        };
        connect();
    }

    /**
     * 连接websocket
     */
    private void connect() {
        new Thread() {
            @Override
            public void run() {
                try {
                    //connectBlocking多出一个等待操作，会先连接再发送，否则未连接发送会报错
                    Log.i("JWebSocketClientService", "websocket链接中");
                    client.connectBlocking();
                } catch (InterruptedException e) {
                    Log.i("JWebSocketClientService", e.getMessage());
//                    e.printStackTrace();
                }
            }
        }.start();

    }

    /**
     * 发送消息
     *
     * @param msg
     */
    public void sendMsg(String msg) {
        if (null != client) {
            Log.i("JWebSocketClientService", "发送的消息：" + msg);
            client.send(msg);
        }
    }

    /**
     * 断开连接
     */
    private void closeConnect() {
        try {
            if (null != client) {
                client.close();
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            client = null;
        }
    }

    //    -------------------------------------websocket心跳检测------------------------------------------------
    private static final long HEART_BEAT_RATE = 50 * 1000;//每隔55秒进行一次对长连接的心跳检测
    private Handler mHandler = new Handler();
    private Runnable heartBeatRunnable = new Runnable() {
        @Override
        public void run() {
            Log.i("JWebSocketClientService", "心跳包检测websocket连接状态");
            if (client != null) {
                if (client.isOpen()) {
                    Log.i("JWebSocketClientService", "websocket已连接");
                    sendMsg(Utils.getSerial());
                } else if (client.isClosed()) {
                    Log.i("JWebSocketClientService", "websocket重连中");
                    reconnectWs();
                }
            } else {
                //如果client已为空，重新初始化连接
                client = null;
                initSocketClient();
            }
            //每隔一定的时间，对长连接进行一次心跳检测
            mHandler.postDelayed(this, HEART_BEAT_RATE);
        }
    };

    /**
     * 开启重连
     */
    private void reconnectWs() {
        mHandler.removeCallbacks(heartBeatRunnable);
        new Thread() {
            @Override
            public void run() {
                try {
                    Log.i("JWebSocketClientService", "开启重连");
                    client.reconnectBlocking();
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
        }.start();
    }
}