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`);
 })
 
 
 
- 
+
 async function connectAndInsert() {
-  // 创建 MongoDB 客户端 
-  const client = new MongoClient(mongourl, {
-    useNewUrlParser: true,
-    useUnifiedTopology: true,
-    serverSelectionTimeoutMS: 5000, // 5秒连接超时 
-  });
- 
-  try {
-    // 连接到 MongoDB 服务器
-    console.log(' 正在连接 MongoDB...');
-    await client.connect(); 
-    console.log('✅  MongoDB 连接成功');
- 
-    // 获取数据库和集合
-    const db = client.db("letian"); 
-    const collection = db.collection("COLLECTION_NAME"); 
- 
-    // 创建示例数据
-    const userData = {
-      name: '张三',
-      email: 'zhangsan@example.com', 
-      age: 30,
-      createdAt: new Date(),
-      tags: ['nodejs', 'developer'],
-      address: {
-        city: '北京',
-        country: '中国'
-      }
-    };
- 
-    // 插入单个文档
-    console.log(' 正在插入数据...');
-    const insertResult = await collection.insertOne(userData); 
-    console.log(`✅  数据插入成功，文档ID: ${insertResult.insertedId}`);
- 
-  } catch (err) {
-    console.error('❌  数据库操作出错:', err);
-  } finally {
-    // 关闭连接 
-    await client.close(); 
-    console.log('🔌  MongoDB 连接已关闭');
-  }
+    // 创建 MongoDB 客户端 
+    const client = new MongoClient(mongourl, {
+        useNewUrlParser: true,
+        useUnifiedTopology: true,
+        serverSelectionTimeoutMS: 5000, // 5秒连接超时 
+    });
+
+    try {
+        // 连接到 MongoDB 服务器
+        console.log(' 正在连接 MongoDB...');
+        await client.connect();
+        console.log('✅  MongoDB 连接成功');
+
+        // 获取数据库和集合
+        const db = client.db("letian");
+        const collection = db.collection("COLLECTION_NAME");
+
+        // 创建示例数据
+        const userData = {
+            name: '张三',
+            email: 'zhangsan@example.com',
+            age: 30,
+            createdAt: new Date(),
+            tags: ['nodejs', 'developer'],
+            address: {
+                city: '北京',
+                country: '中国'
+            }
+        };
+
+        // 插入单个文档
+        console.log(' 正在插入数据...');
+        const insertResult = await collection.insertOne(userData);
+        console.log(`✅  数据插入成功，文档ID: ${insertResult.insertedId}`);
+
+    } catch (err) {
+        console.error('❌  数据库操作出错:', err);
+    } finally {
+        // 关闭连接 
+        await client.close();
+        console.log('🔌  MongoDB 连接已关闭');
+    }
 }
\ No newline at end of file