文件下载和文件上传的websocket

lxw

2023-11-10 33a9db243709db2ce7ef081ab18be35d1b80cf3c

文件下载和文件上传的websocket

 src/main/java/com/whyc/mapper/DevUpdateStateMapper.java

@@ -1,4 +1,6 @@
package com.whyc.mapper;

import com.whyc.pojo.DevUpdateState;

public interface DevUpdateStateMapper extends CustomMapper<DevUpdateState>{
}

 src/main/java/com/whyc/service/DevUpdateStateService.java

@@ -1,5 +1,6 @@
package com.whyc.service;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
import com.whyc.mapper.DevUpdateStateMapper;
import com.whyc.pojo.DevUpdateState;
@@ -64,4 +65,13 @@
        mapper.update(null,wrapper);
        return new Response().set(1,true);
    }

    //dfu远程升级的websocket实时推送设备升级
    public Response getDfuStatus(int devId) {
        QueryWrapper queryWrapper=new QueryWrapper();
        queryWrapper.eq("dev_id",devId);
        queryWrapper.last("limit 1");
        DevUpdateState dfu=mapper.selectOne(queryWrapper);
        return new Response().setII(1,dfu!=null,dfu,"下载成功返回数据");
    }
}

 src/main/java/com/whyc/service/FgcdFiledownloadService.java

@@ -112,4 +112,12 @@
            return new Response().set(1,bl,"下载失败");
        }
    }
    //filedownload的websocket实时推送文件下载情况
    public Response getDownloadFileStatus(int devId) {
        QueryWrapper queryWrapper=new QueryWrapper();
        queryWrapper.eq("dev_id",devId);
        queryWrapper.last("limit 1");
        FgcdFiledownload fgcd=mapper.selectOne(queryWrapper);
        return new Response().setII(1,fgcd!=null,fgcd,"下载成功返回数据");
    }
}

 src/main/java/com/whyc/websocket/DfuSocket.java

New file
@@ -0,0 +1,100 @@
package com.whyc.websocket;

import com.whyc.config.WebSocketConfig;
import com.whyc.pojo.Response;
import com.whyc.service.DevUpdateStateService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import javax.websocket.*;
import javax.websocket.server.ServerEndpoint;
import java.util.HashMap;
import java.util.Map;

@Component
@ServerEndpoint(value = "/dfu",encoders = WebSocketEncoder.class,configurator = WebSocketConfig.class)
public class DfuSocket {
    private Session session;

    private static final int executeTime = 2000;

    private Thread thread;

    private volatile boolean runFlag=true;

    private volatile Map<String,Thread> threadMap = new HashMap<>();

    private volatile Map<Long,Boolean> threadFlagMap = new HashMap<>();

    private static DevUpdateStateService updateStateService;

    @Autowired
    public void setHistoryService(DevUpdateStateService updateStateService){
        DfuSocket.updateStateService=updateStateService;
    }

    @OnOpen
    public void onOpen(Session session){
        this.session=session;
    }

    @OnMessage
    public void onMessage(Session session, String message){
        this.session=session;
        int devId=Integer.valueOf(message);
        thread = new Thread("Thread_Version") {
            @Override
            public void run() {
                while (runFlag && !isInterrupted()) {
                    Thread thread = currentThread();
                    threadFlagMap.put(thread.getId(), true);
                    try {
                        Response res = updateStateService.getDfuStatus(devId);
                        if (session.isOpen()) {
                            //推送信息
                            synchronized (session) {
                                session.getBasicRemote().sendObject(res);
                            }
                            threadFlagMap.put(thread.getId(), false);
                        }

                        sleep(executeTime);
                        //} catch (IOException | InterruptedException | EncodeException e) {
                    } catch (Exception e) {
                        interrupt();
                    }
                }
            }
        };
        thread.start();
        threadFlagMap.put(thread.getId(),true);
        //停止老的socket线程
        Thread threadBefore = threadMap.get(session.getId());
        if(threadBefore !=null && threadBefore.isAlive()){
            while (threadFlagMap.get(threadBefore.getId())){
            }
            threadBefore.interrupt();
        }
        //将线程存储,便于调用定位
        threadMap.put(session.getId(), this.thread);
    }

    @OnClose
    public void onClose(CloseReason closeReason){
        System.err.println("closeReason = " + closeReason);
        runFlag = false;
        if (thread != null && thread.isAlive()) {
            thread.interrupt();
        }
        threadMap.remove(session.getId());
    }

    @OnError
    public void onError(Throwable error) {
        error.printStackTrace();
        if (thread != null && thread.isAlive()) {
            thread.interrupt();
        }
        threadMap.remove(session.getId());
    }
}

 src/main/java/com/whyc/websocket/FileDownloadSocket.java

New file
@@ -0,0 +1,101 @@
package com.whyc.websocket;

import com.whyc.config.WebSocketConfig;

import com.whyc.pojo.Response;
import com.whyc.service.FgcdFiledownloadService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import javax.websocket.*;
import javax.websocket.server.ServerEndpoint;
import java.util.HashMap;
import java.util.Map;

@Component
@ServerEndpoint(value = "/fileDownload",encoders = WebSocketEncoder.class,configurator = WebSocketConfig.class)
public class FileDownloadSocket {
    private Session session;

    private static final int executeTime = 2000;

    private Thread thread;

    private volatile boolean runFlag=true;

    private volatile Map<String,Thread> threadMap = new HashMap<>();

    private volatile Map<Long,Boolean> threadFlagMap = new HashMap<>();

    private static FgcdFiledownloadService filedownloadService;

    @Autowired
    public void setHistoryService(FgcdFiledownloadService filedownloadService){
        FileDownloadSocket.filedownloadService=filedownloadService;
    }

    @OnOpen
    public void onOpen(Session session){
        this.session=session;
    }

    @OnMessage
    public void onMessage(Session session, String message){
        this.session=session;
        int devId=Integer.valueOf(message);
        thread = new Thread("Thread_Version") {
            @Override
            public void run() {
                while (runFlag && !isInterrupted()) {
                    Thread thread = currentThread();
                    threadFlagMap.put(thread.getId(), true);
                    try {
                        Response res = filedownloadService.getDownloadFileStatus(devId);
                        if (session.isOpen()) {
                            //推送信息
                            synchronized (session) {
                                session.getBasicRemote().sendObject(res);
                            }
                            threadFlagMap.put(thread.getId(), false);
                        }

                        sleep(executeTime);
                        //} catch (IOException | InterruptedException | EncodeException e) {
                    } catch (Exception e) {
                        interrupt();
                    }
                }
            }
        };
        thread.start();
        threadFlagMap.put(thread.getId(),true);
        //停止老的socket线程
        Thread threadBefore = threadMap.get(session.getId());
        if(threadBefore !=null && threadBefore.isAlive()){
            while (threadFlagMap.get(threadBefore.getId())){
            }
            threadBefore.interrupt();
        }
        //将线程存储,便于调用定位
        threadMap.put(session.getId(), this.thread);
    }

    @OnClose
    public void onClose(CloseReason closeReason){
        System.err.println("closeReason = " + closeReason);
        runFlag = false;
        if (thread != null && thread.isAlive()) {
            thread.interrupt();
        }
        threadMap.remove(session.getId());
    }

    @OnError
    public void onError(Throwable error) {
        error.printStackTrace();
        if (thread != null && thread.isAlive()) {
            thread.interrupt();
        }
        threadMap.remove(session.getId());
    }
}