Programmer Group

brief introduction In java programs, we use logs to locate and discover potential problems in our projects.In modern java projects, we use logging frameworks such as log4j or slf4j, Logback, and so on to handle logging issues. JVM is the basis of running java programs. Events in JVM such as GC, class loading, JPMS, heap, threads and so on can a ...

The 5.2 version of CAS single sign on is really a big change. I came up with it after reading a lot of data. The general steps of configuration and the steps of configuring CAS and database are as follows: 1. Copying jar package, 2. Configuring application.properties Database configuration access, 3. Establish database data Preparation be ...

This paper introduces the simple application of spring boot integrating spring data JPA What is spring data jpa? We can't help thinking about it. In fact, spring data jpa uses hibernate by default and spring data jpa technology, which implements the template Dao layer. It only needs to inherit an interface in Dao to easily complete "add, d ...

>Following the previous article "Apache Shiro takes over the authentication and authorization of Swagger", some enthusiastic netizens said that Apache Shiro seems too simple. In response to this problem, the individual does not make any evaluation (all technologies serve the needs). Today's main share is: how to take over the authe ...

>File upload and download is a common function in Web application. In this tutorial, I will implement a Restful style file upload and download APIs based on Spring 2.2.6. > >Based on the Spring Boot 2.0 actual combat series source code, it has been pushed to Github warehouse: https://github.com/ramostear/springboot2.0-action . Welcom ...

Spring MVC: interceptor Implemented the HandlerInterceptor interface. Function: used to intercept the controller   2, Define an interceptor 1. Environment construction @Component public class Demo1Interceptor implements HandlerInterceptor { @Override public boolean preHandle(HttpServletRequest request, HttpServletResponse response, ...

1. Origin of Spring Boot As we all know, the Spring Framework is a very important and lightweight framework in the Java ecology, helping our broad masses of big guys develop Java.The Spring Framework has evolved very rapidly, from the very beginning of the Spring core container that helped us manage Java objects to the various business issues t ...

Why use private library By default, maven goes to the remote central warehouse to download the JAR package. It's quite slow to visit the foreign network. If everyone in the team downloads the JAR package once, it's undoubtedly a waste of the network. Of course, it can also add the domestic image, such as Ali's, which is relatively stable. But ...

introduction In the previous blog post, the database desensitization scenario and scheme have been completely introduced. The sharding JDBC open source project from Jingdong Digital Technology Co., Ltd. has realized this function transparently through the way of data source intermediate agent. However, although the function has been realized, ...

If you think git is confusing, then this copy is for you! Please note that I intentionally skipped basic commands such as git commit and git pull/push. The theme of this short copy is some "advanced" uses of GIT. Navigation - jump to previous branch git checkout - View history # Each submission is shown on a single line git log --on ...