Programmer Group

Author: Li Hongxun, Front End Engineer, GE Digital Group scene Because of security considerations, data services do not have external IPS and ports on Predix, so we can only access app s deployed on Predix, which can cause some development inconvenience.For example, we may need to import local data into postgres, or we may want to look at ...

netty Literacy > The purpose of this article is to have a general impression of netty, so that we can have a deep understanding of some basic concepts before netty. brief introduction NIO Communication Framework The number of connections supported by a single point is related to machine memory (about 10W + 1G memory), not to the maximum num ...

Push TechnologyBy establishing a long connection between the client and the server, the client can receive messages sent by the server from time to time. (1) polling method based on ajax: Using JQuery encapsulated $. ajax to build polling is shown below, and the polling is conducted every five seconds, regardless of whether the request is succe ...

Java Extensible IO Doug Lee outline Extensible Network Services event driven Reactor mode Basic Edition Multithreaded version Other Variations Overview of blocking IO API s in java.io packages Network Application Server Web server, distributed object system, etc. Their common features Read Request Decode Request Message Business Processin ...

This article is a translation with the original address: https://kamilmysliwiec.com/nest-final-release-is-here-node-js-framework-built-top-of-typescript Author, @Kamil My liwiec The address of the last article is: https://segmentfault.com/a/1190000009560532 Middlewares Middleware is a function that is called before a routing handler. Middlewa ...

First, take a look at the phonegap initialization process and the flow chart of Native and JS interaction.   Description: In socket server mode, phonegap.js source code implements an XHR request in 1 millisecond, when there is JS statement data in the Native JS queue, it is the real 1 millisecond call; when there is no data, scok ...

EventLoop In introducing the initialization and start-up process of Bootstrap, we touched NioEventLoopGroup several times. To understand this class, we also need to understand netty's thread model. NioEventLoopGroup can be understood as a set of threads, each of which can handle io events generated by multiple channel s independently. Initializ ...

I. Using Components 1. Registration Create a Vue instance: new Vue({ el: '#some-element', // option }) To register a global component, you can use Vue.component(tagName,options) Vue.component('my-component', { // option }) Use w3c rules (lowercase, with a short bar) as much as possible for custom tag names. After the component ...

RESP Send Command Format The sending command format RESP specifies the following format for a command. CRLF stands for "r\n": * < Number of Parameters > CRLF Number of bytes in parameter 1 > CRLF Parameter 1 > CRLF ... Number of bytes of parameter N > CRLF Parameter N > CRLF In the case of set hello world, what yo ...

Recently, in a chess and card project, we need to use socket to transmit protobuf byte stream. After searching some blogs and articles on the Internet, we found that there is no particular comprehensive, so we can share all the source code of our research with you. Because we have just started, there may be some shortcomings. Welcome to pat bri ...