update

package.json

@@ -20,6 +20,7 @@
     "exceljs": "4.4.0",
     "express": "4.19.2",
     "form-data": "4.0.0",
+    "iconv-lite": "^0.6.3",
     "ioredis": "5.4.1",
     "joi": "17.13.1",
     "lodash": "4.17.21",

tcpserver.js

 const net = require('net');
 const { MongoClient } = require('mongodb');
+const iconv = require('iconv-lite');
 
 let mongourl = `mongodb://root:letian2024.@172.16.0.16:27017/letian?authSource=admin`; //内网
 
 const server = net.createServer((socket) => {
     socket.on('data', (data) => {
-        console.log(`收到消息：${data}`);
-        socket.write(`${data}`);
-        // connectAndInsert(data);
+        const gbkString = iconv.decode(data, 'gbk');
+        console.log(`收到消息：${gbkString}`);
+        if (gbkString.includes('LetaleLetale123')) {
+            //登录
+            socket.write('0x20 0x02 0x00 0x00')
+        }
+        if (gbkString.includes('C0')) {
+            socket.write('0xD0 0x00');
+        }
+    });
+
+    socket.on('N82V3VWYU84K36UH', (data) => {
+        const gbkString = iconv.decode(data, 'gbk');
+        console.log(`N82V3VWYU84K36UH${gbkString}`);
+    });
+    socket.on('WO6936WQZ0L1Q4A1', (data) => {
+        const gbkString = iconv.decode(data, 'gbk');
+        console.log(`WO6936WQZ0L1Q4A1${gbkString}`);
     });
+
     socket.on('end', () => {
         console.log("客户端断开连接");
     });
 
 });
 
-server.listen(3001, ()=> {
+server.listen(3001, () => {
     console.log(`tcp server启动，监听端口3001`);
 })