Programmer Group

A simple Echo example of WebSocket: The sample code comes from: http://www.websocket.org/echo.html Using a text editor, copy and save the following code in a websocket.html file, and as soon as you open it in the browser, the page will automatically connect using websocket, send a message, display the received server response, and then clo ...

I. What is Nginx Nginx is a high performance http server / reverse proxy server and e-mail (IMAP/POP3) proxy server. Developed by Igor Sysoev, a Russian programmer, the official test nginx can support 50,000 concurrent links (Taobao Jingdong level), and the consumption of cpu, memory and other resources is very low, running very stable. Open ...

Last night, I forgot to make any changes to the development environment, which led to nginx prompting "Primary script unknown" when debugging the interface today. In most cases, this is a very simple problem: script_filename error in nginx configuration. However, I checked my nginx configuration and found nothing wrong. location ~ \.p ...

Preface System environment [root@lnmp mysql]# cat /etc/redhat-release CentOS Linux release 7.3.1611 (Core) [root@lnmp mysql]# uname -r 3.10.0-514.el7.x86_64 Official Download Address mariadb database php ngixn Install MariaDB 10.3.13 1. Download mariadb binary packageBecause the compilation time of source packages is too long, the binary pa ...

As you all know, in SharePoint on-prem environment, we can upload the solution(.wsp) file to our SharePoint through PowerShell and activate it. But how to use power shell in SharePoint online environment? Because we can't touch the machine in online environment, we can't use power shell on the machine in online environment. If you think you can ...

Because of the use of Google fonts PT Serif fonts for blog themes, only Google fonts fonts fonts fonts can be used in China through the proxy of CUHK. Recently, however, it has been found that its speed is unstable and its response time sometimes exceeds 600 ms. Just because I have it. VPS of vultr (with small tail) I set up one for myself. The ...

Spring Boot : Undertow   Undertow Undertow is a NIO-based high-performance Web embedded server developed by Red Hat Untertow features: Lightweight: It's a Web server, but unlike traditional Web servers, which have container concept, it consists of two core Jar packages. Loading a Web application can be less than 10MB of memory. ...

_harbor's Official Installation Guide This paper introduces three installation modes of harbor, which are online installation, offline installation and OVA installation. Due to the limitation of network environment, this paper mainly adopts offline installation. _The official documents above indicate that you need to rely on Python ...

Recently, Oracle launched a new open source framework, Helidon, which is a collection of Java libraries for creating applications based on micro services. Like Payara Micro, Thorntail (previously WildFly Swarm), OpenLiberty, TomEE and other projects, the project has joined the MicroProfile family. Originally named J4C (Java for Cloud), Helidon ...

After deploying kong, we need to add our own interface to Kong management. Kong provides a more comprehensive restful api. Each version will be different. The following record is based on kong v0.14.x kong's 8001 port is resful admin api, through which services, routing and configuration are managed, so after deployment, pages can access localh ...