Programmer Group

Campus address book function, collect and display the public contact information in the campus. It is often used in daily life. For example, when the water and electricity department has a problem, it needs to find a water and electricity master, an enrollment and employment office, a study and work off ...

outlineYou can find the configuration information to enable Swagger Gen on the official website, which is also the beginning of our rapid development of ApiSo we don't need to write API documents and tests. It's ideal to be full, but some of our Get interfaces can be used when using, butWe need to do authentication when we Post. Token is a goo ...

ajax does not reload the entire web page, update part of the web page technology Note: ajax only works when it is running on the server. I usually use phpstudy locally Advantage: 1. Optimize the user experience 2. It undertakes part of the work of the server and reduces the pressure of the server 3. Optimized the transmission of server-side and ...

Today's content: 1. JavaScript: 1. ECMAScript: 2. BOM: 3. DOM: 1. Event DOM simple learning: to meet case requirements *Function: control the content of html document *Get page label (Element) object: element *document.getElementById("id value"): get the element object through ...

Requests library is the most important and common library in Python crawler. You must master it skillfully Let's meet this library Requests library is the most important and common library in Python crawler. You must master it skillfully Let's meet this library import requests url = 'http://www.b ...

1. Junit test tool Junit is a unit testing framework for Java programming language Common comments are: @BeforeClass: indicates that the method using this annotation is executed before the test class is called. This annotation can only be declared once in a test class, and the method corresponding to ...

Hello everyone, I'm the white book demon! Knowledge comes from accumulation, the peak comes from self-discipline Today, I have sorted out some small knowledge points based on some documents, notes and other materials I have learned before. If there are any improper points, you are welcome to correct the ...

I. MyCat Basic Concepts 1. What is MyCat A thoroughly open source, large database cluster for enterprise application developmentTransaction enabled, ACID enabled, enhanced database that can replace MySQLAn enterprise database that can be considered a MySQL cluster to replace the expensive Oracle clusterA new type of SQL Server which combines ...

background Ambari is a powerful big data cluster management platform. In practice, the big data components we use are not limited to those provided on the official website. How to integrate other components in ambari? Stacks & Services Stack is a collection of services. You can define multiple ...

Spring Boot benefits Fast creation of stand-alone Spring projects and integration with mainstream frameworks Using the embedded Servlet container, the application does not need to be a WAR package starters auto dependency and version control A large number of automatic configuration, simplified devel ...