first commit

server/comman/mqqtclinet.js

@@ -0,0 +1,158 @@
+const mqtt = require('mqtt');
+const db=require("./db")
+// db.resetpath("../db.sqlite3")
+
+// 创建 MQTT 客户端实例
+const client = mqtt.connect('mqtt://82.156.1.111:40000', {
+    clientId: 'web_collectorserver',
+    username: 'xin',
+    password: 'irishk'
+});
+client.subscribe("topic_who_is_here_back");
+// 定义事件处理程序
+client.on('connect', () => {
+    console.log('MQTT client connected');
+    client.subscribe('my/topic');
+});
+function converjsontokeyvalue(data)
+{
+
+    let fields = [];
+    let fields1 = [];
+    let fields2 = [];
+    for (let key in data) {
+      // 如果值是字符串，需要用引号包裹
+      let value = typeof data[key] === 'string' ? `'${data[key]}'` : data[key];
+      fields1.push(key);
+        fields2.push( value);
+
+    }
+
+    fields.push(fields1.join(","))
+    fields.push(fields2.join(","))
+    return fields
+}
+function converjsontokeyequalvalue(data)
+{
+
+    let fields = [];
+
+    for (let key in data) {
+      // 如果值是字符串，需要用引号包裹
+      let value = typeof data[key] === 'string' ? `'${data[key]}'` : data[key];
+        fields.push(key+"="+value);
+
+    }
+
+   
+   
+    return fields.join(",")
+}
+
+
+
+
+client.on('message', async (topic, message) => {
+    if (topic==="topic_who_is_here_back")
+    {
+        var data=JSON.parse(message.toString())
+        data.switch1=data.st[0];
+        data.switch2=data.st[1];
+        data.switch3=data.st[2];
+        data.switch4=data.st[3];
+        if (data.switch1===undefined)
+            {
+                data.switch1=true
+            }
+            if (data.switch2===undefined)
+            {
+                data.switch2=true
+            }
+            if (data.switch3===undefined)
+            {
+                data.switch3=true
+            }
+            if (data.switch4===undefined)
+            {
+                data.switch4=true
+            }
+        if (data.id.split("_")[1]==="4G")
+        {
+            data.is4G=true
+        }else
+        {
+            data.is4G=false
+        }
+        data.device="nothing"
+        delete data.st;
+
+        let sql="SELECT * FROM `remoteswitch` WHERE `id`=?"
+
+      
+
+       db.query(sql,data.id,function(err, rows){
+            if (1)
+            {
+
+            }
+            var result=rows
+
+            if (result.length===0)
+            {
+
+                console.log(data)
+                sql="insert into `remoteswitch` ( "+converjsontokeyvalue(data)[0]+" ) values ("+converjsontokeyvalue(data)[1]+")"
+                console.log(sql)
+                db.query(sql,(err,result)=>{
+                    console.log(err)
+                    console.log("insert ok")
+                })
+            }else
+            {
+              
+                sql='update `remoteswitch` set '+converjsontokeyequalvalue(data)+' where id=?'
+                console.log(sql)
+                db.query(sql,[data.id],(err,result)=>{
+                    console.log(err)
+                    console.log("update ok")
+                })
+            }
+
+
+
+
+        })
+        //console.log(aaa)
+
+
+    }
+
+  //  console.log('Received message:', topic, message.toString());
+});
+
+client.on('reconnect', () => {
+    console.log('MQTT client reconnected');
+});
+
+client.on('offline', () => {
+    console.log('MQTT client offline');
+});
+
+client.on('error', (err) => {
+    console.error('MQTT client error:', err);
+});
+
+// 在退出时关闭客户端连接
+process.on('SIGINT', () => {
+    console.log('Exiting...');
+    client.end(() => {
+        console.log('MQTT client disconnected');
+        process.exit();
+    });
+});
+
+function getdevicemqtt() {
+    client.publish('topic_who_is_here', 'who is here');
+}
+
+exports.getdevicemqtt=getdevicemqtt