if the client needs two websocket, and cannot get through the websocket connection under different routes, do you need to open two ports:
const WebSocket = require("ws");
const wss1= new WebSocket.Server({ port: 8080 });
const wss2= new WebSocket.Server({ port: 8081});Previous: What tool does tomcat use to compile jsp into bytecode files (.class)
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in the development of the ElementUI+Express project, uploading pictures encountered this problem: 1ElementUI: <el-upload action="http: localhost goods addNewGoodsPicture" :limit="1" :onError="uploadError" :onSuccess=&q...
as shown in the figure, on the server side, the results of the local query are all correct, but why the request is not correct in the node environment ...
I want to find out how to change all the primaryKey, of a table ...
set up a background management page with Node.js+Vue+UEditor. The UEditor image upload can be used, and the uploaded image can be viewed normally in the UEditor editor . now the problem is that when I open another web service, I can t get the picture ...
if the node service is restarted, it will affect the online bar ...
there is currently an API interface program using express. With PM2 deployment and cluster mode enabled, 3 instances are required to count the overall qps (number of queries per second). now the interface puts the content into the kafka message queue a...
Express simple blog do a simple blog site with the above tutorials, but when you link to the MongoDB database, you will find a problem. Using webStrom will not report an error, while vsCode debugging will not report the following error: * excepti...
if the node service is started with pm2 on the server, and the routing and other files change, does pm2 need to restart the node service as it does locally to take effect? ...
Front end code <li class="block">: <img :src="productImg" alt="real-photo" v-if="productImg"> <input type="file" ref="proupload" name="file"...
Node service automatically exits when there is an error, and the error message is not printed. For example, I commented out a line of code: ...
encountered a problem. The project uses the separation of front and rear ends, and the back end uses node express . The front end and background are in different places, and there is cross-domain. How to deal with session sharing problem . My pre...
recently, an interface for reading data has been found to take too long to return in the production environment. Project uses nodejs + mongodb Development dependency: questions such as title: what is the difference between: timed out and so...
such as the title, so do you have to execute the npm install command every time you launch? ...
server, localhost implemented by koa runs normally during testing, but GET does not respond when deployed to the server: Local test all requests respond normally: : ask what the problem is. ...
<!doctype html> <html lang="en"> <head> <title>Document< title> < head> <body> <%= helloWorld %> <img src=". a.jpg" alt="" > < body> < html> var ...
wants to use the Express application generator to generate the project skeleton, but shows that-bash: express: command not found. the same method can be operated on other computers. All the installation steps come from the official website, but express...
how to share session? express using express-session module eggjs using koa-session module for two projects under the same domain name using express and eggjs framework respectively. Their cookie encryption seems to be different. ...
the code is as follows const File = require( .. lib file ).File const path = require( path ) const fs = require( fs ) let handleFile = { create (file) { return File.create(file) }, id getFileById (id) { ...
Ajax code of the front end: ** * Created by Administrator on 2018 4 17. * $(function() { var $loginBox = $( -sharploginBox ); var $registerBox = $( -sharpregisterBox ); var $userInfo = $( -sharpuserInfo ); $loginBox....
ask the elders, want to extract the user name and password from the mysql to verify the login, the mysql table clearly has data, but the request is to return an empty array, check the database statement can not see the problem, I would like to ask the s...