新增 netty整合mqtt协议，与车位相机通讯并保存通讯信息

2026-04-21 19:45:09 +08:00 · 2023-12-20 16:17:34 +08:00
parent 7015cb1234
commit 5fbce62752
16 changed files with 972 additions and 23 deletions
--- a/jsowell-netty/src/main/java/com/jsowell/netty/service/camera/CameraBusinessService.java
+++ b/jsowell-netty/src/main/java/com/jsowell/netty/service/camera/CameraBusinessService.java
@@ -0,0 +1,20 @@
+package com.jsowell.netty.service.camera;
+
+import io.netty.channel.Channel;
+import io.netty.channel.ChannelFuture;
+
+import java.net.UnknownHostException;
+
+/**
+ * TODO
+ *
+ * @author Lemon
+ * @Date 2023/12/20 15:15:26
+ */
+public interface CameraBusinessService {
+    public void sendGroundLockCommand(String sn, String msgType, String msgPrefix, String topic) throws InterruptedException;
+
+
+    public void processConnectMsg(Channel channel) throws UnknownHostException;
+
+}
--- a/jsowell-netty/src/main/java/com/jsowell/netty/service/camera/impl/CameraBusinessServiceImpl.java
+++ b/jsowell-netty/src/main/java/com/jsowell/netty/service/camera/impl/CameraBusinessServiceImpl.java
@@ -0,0 +1,109 @@
+package com.jsowell.netty.service.camera.impl;
+
+import com.alibaba.fastjson2.JSONObject;
+import com.jsowell.common.constant.CacheConstants;
+import com.jsowell.common.core.redis.RedisCache;
+import com.jsowell.common.util.DateUtils;
+import com.jsowell.common.util.sign.MD5Util;
+import com.jsowell.netty.domain.MqttRequest;
+import com.jsowell.netty.server.mqtt.BootNettyMqttChannelInboundHandler;
+import com.jsowell.netty.service.camera.CameraBusinessService;
+import io.netty.buffer.Unpooled;
+import io.netty.channel.Channel;
+import io.netty.channel.ChannelFuture;
+import io.netty.handler.codec.mqtt.*;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.net.InetAddress;
+import java.net.UnknownHostException;
+import java.util.Locale;
+
+/**
+ * 车位相机业务Service
+ *
+ * @author Lemon
+ * @Date 2023/12/19 16:07:45
+ */
+@Service
+public class CameraBusinessServiceImpl implements CameraBusinessService {
+
+    @Autowired
+    private RedisCache redisCache;
+
+    @Autowired
+    private BootNettyMqttChannelInboundHandler handler;
+
+    public void sendGroundLockCommand(String sn, String msgType, String msgPrefix, String topic) throws InterruptedException {
+        JSONObject jsonObject = spliceStr(sn, msgType, msgPrefix);
+        // 通过sn查找出对应的channelId
+        String mqttConnectRedisKey = CacheConstants.MQTT_CONNECT_CHANNEL + sn;
+        Object cacheObject = redisCache.getCacheObject(mqttConnectRedisKey);
+        if (cacheObject == null) {
+            return;
+        }
+        String channelId = (String) cacheObject;
+
+        // 发送消息
+        handler.sendMsg(channelId, topic, jsonObject.toJSONString());
+    }
+
+    public void processConnectMsg(Channel channel) throws UnknownHostException {
+        // 解析 channel 中的 ip 地址
+        String remoteAddress = channel.remoteAddress().toString();
+        // System.out.println(ip);
+        String[] parts = remoteAddress.substring(1).split(":");
+        String ipAddress = parts[0]; // IP 地址部分
+        String port = parts[1]; // 端口号部分
+        // 使用 InetAddress 解析IP地址部分
+        InetAddress inetAddress = InetAddress.getByName(ipAddress);
+
+        // 输出标准的IP地址格式和端口号
+        String standardIPAddress = inetAddress.getHostAddress();
+        // System.out.println("端口号：" + port);
+
+        // 获取相机心跳包的缓存信息，将 sn 和 channelId 进行绑定
+        String redisKey = CacheConstants.CAMERA_HEARTBEAT + standardIPAddress;
+        Object cacheObject = redisCache.getCacheObject(redisKey);
+        if (cacheObject != null) {
+            String sn = (String) cacheObject;
+            // 将 sn 和 channelId 绑定关系存入缓存
+            String mqttConnectRedisKey = CacheConstants.MQTT_CONNECT_CHANNEL + sn;
+            redisCache.setCacheObject(mqttConnectRedisKey, channel.id().asShortText());
+        }
+    }
+
+    /**
+     * 根据规则拼装字符串
+     * @param sn 设备 sn
+     * @param msgType 消息类型
+     * @param msgPrefix 消息前缀
+     * @return 拼装好的json对象
+     */
+    private JSONObject spliceStr(String sn, String msgType, String msgPrefix) {
+        StringBuilder sb = new StringBuilder();
+        String msgId = msgPrefix + DateUtils.dateTimeNow(DateUtils.YYYYMMDDHHMMSS) + "01";
+        String timeStamp = DateUtils.dateTimeNow(DateUtils.YYYY_MM_DD_HH_MM_SS);
+        sb.append("sn=").append(sn)
+                .append("&timestamp=").append(timeStamp)
+                .append("&msg_id=").append(msgId)
+                .append("&msg_type=").append(msgType);
+        // 进行 32 位 MD5 计算
+        String sign = MD5Util.MD5Encode(sb.toString()).toUpperCase(Locale.ROOT);
+        JSONObject jsonObject = new JSONObject();
+        jsonObject.put("sign", sign);
+        jsonObject.put("sn", sn);
+        jsonObject.put("timestamp", timeStamp);
+        jsonObject.put("msg_id", msgId);
+        jsonObject.put("msg_type", msgType);
+
+        return jsonObject;
+    }
+
+    public static void main(String[] args) {
+        System.out.println(System.currentTimeMillis());
+    }
+
+
+
+}