🐛 刷新页面服务报错，页面table数据切换库不刷新问题解决

node-server/core/common.js

@@ -1,6 +1,7 @@
 
 import express from "express";
 import mysql from "mysql";
+import Client from 'easymysql';
 /**
  * 401 需要跳转登录验证
  * 500 接口错误
@@ -25,6 +26,8 @@ const con = mysql.createConnection({
     ...mysqlParams
 });
 
+
+
 // 查询数据方法 SELECT * FROM table
 const m_get = (table, Clause, order, start, end) => {
     return `SELECT * FROM ${table} ${Clause ? 'WHERE ' + Clause : ``} ORDER BY ${order || `ID`} DESC ${!end ? `` : `LIMIT ` + start + `,` + end};`
@@ -76,31 +79,37 @@ const dateFormater = (formater, time) => {
 
 // 获取数据库列表
 const getDatabases = () => app.post('/getdatabases', function (req, res) {
-    con.connect();
+    // con.connect();
     con.query("SHOW DATABASES", function (error, results, fields) {
         if (error) {
             console.log(`${nowTime()} 错误：${JSON.stringify(error)}`);
             return res.status(500).send(error);
         } else {
             res.send(results);
+            // con.end();
         }
     });
-    con.end();
 });
 
 // 公共查询方法
 const mysqlQuery = (res, database, sql) => {
-    if(!database) return res.status(500).send('database is ' + database);
+    if (!database) return res.status(500).send('database is ' + database);
-    connection(database).connect();
+    try {
+        // connection(database).connect();
         connection(database).query(sql, (error, results, fields) => {
             if (error) {
-            console.log(`${nowTime()} 错误：${JSON.stringify(error)}`);
+                // console.log(`${nowTime()} 错误：${JSON.stringify(error)}`);
                 return res.status(500).send(error);
             } else {
                 res.send(results);
+                // connection(database).end();
             }
         });
-    connection(database).end();
+        
+    } catch (error) {
+        console.log(error);
+        return res.status(500).send('连接失败', error);
+    }
 }
 
 export default {

node-server/index.js

@@ -8,9 +8,7 @@ import AIMedicineTable from "./core/AIMedicineTable.js";
 import doctorMedicineTable from "./core/doctorMedicineTable.js";
 import AIFlagTable from "./core/AIFlagTable.js";
 
-// root/Gao!8636
 const app = common.app;
-const connection = common.connection;
 const nowTime = common.nowTime;
 
 //配置ajax跨域请求
@@ -24,6 +22,15 @@ app.use(bodyParser.json());
 
 app.listen(3001, () => console.log('服务启动! ' + nowTime()));
 
+common.con.connect();
+common.con.query("SHOW DATABASES", function (error, results, fields) {
+    if (error) {
+        console.log(`${nowTime()} 错误：${JSON.stringify(error)}`);
+    } else {
+        common.connection(results[results.length-1].Database).connect();
+    }
+});
+
 common.getDatabases();
 featureTable.getTable();
 AIMedicineTable.getTable();

src/views/remote-manage/remote-manage.vue

@@ -136,7 +136,7 @@
 						<el-table-column prop="num" label="票号" width="40" align="center" />
 						<el-table-column prop="name" label="药物名称" align="center" />
 						<el-table-column prop="speed" label="速度(ml/h)" width="100" />
-						<el-table-column prop="total" label="累计药量(ml)" width="100" >
+						<el-table-column prop="total" label="累计药量(ml)" width="100">
 							<template #default="scope">—</template>
 						</el-table-column>
 						<el-table-column prop="state" label="工作状态" width="70" align="center" />
@@ -238,6 +238,8 @@ function initData() {
 	isAIDose.value = false;
 	unusual.value = [];
 	mssageList.value = [];
+	tableData.value = [];
+	tableDataStore.value = [];
 	getFeatureTable();
 	getMssageLog();
 	getTableData(isAIDose.value);
@@ -313,7 +315,9 @@ function getChartData() {
 		}
 	}, 2000);
 	setInterval(() => {
+		try {
 			chartDom4.value.updateChart(0, new Date());
+		} catch (error) { }
 	}, 1000);
 	function getData() {
 		isRunTimer = false;
@@ -834,10 +838,12 @@ onMounted(() => {
 				padding-bottom: 10px;
 				display: flex;
 				justify-content: space-between;
+
 				&>.left-box {
 					position: relative;
 					width: 200px;
 					height: 100%;
+
 					.unusual-title {
 						display: block;
 						width: 100%;
@@ -848,6 +854,7 @@ onMounted(() => {
 						border: 1px dashed #C1C1C1;
 						border-radius: 10px;
 					}
+
 					.unusual-box {
 						width: 100%;
 						height: calc(100% - 45px);
@@ -869,6 +876,7 @@ onMounted(() => {
 				&>.right-box {
 					width: calc(100% - 205px);
 					height: 100%;
+
 					.video-box {
 						position: relative;
 						width: 100%;
@@ -1010,5 +1018,4 @@ onMounted(() => {
 			}
 		}
 	}
-}
+}</style>
-</style>