update

db/models/collectIET.js

@@ -19,7 +19,8 @@ const collectIndustryEnvironmentalTestingSchema = new Schema({
     time: {
         type: Date,
         get: v => moment(v).format("YYYY-MM-DD HH:mm:ss"),
-        comment: "采集时间"
+        comment: "采集时间",
+        default: new Date()
     },
     /*---------------------------------------------*/
     

tcpserver.js

@@ -3,6 +3,19 @@ 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 client = new MongoClient(mongourl);
+let collection = null;
+
+(async function () {
+    // 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");
+    collection = db.collection("collectIET");
+})();
 
 
 const server = net.createServer((socket) => {
@@ -125,22 +138,7 @@ function genInsertObj(gbkString, deviceNumber) {
 
 async function connectAndInsert(data) {
     // 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("collectIET");
-
         // 插入单个文档
         console.log(' 正在插入数据...');
         const insertResult = await collection.insertOne(data);