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css css: page beautification and layout control Concept: Cascading Style Sheets Cascade: multiple styles can act on the same html element and take effect at the same time Benefits: Powerful: Separating content presentation from style control Reduce coupling and decoupling Make division of labor and cooperation easier Improve developmen ...

Interview question: write a single case model that you think is the best Interview investigation point Purpose of investigation: single case mode can investigate a lot of basic knowledge, so many interviewers will ask this question. Small partners should note that during the interview process, any topic that can examine the ability of ...

1. General As the old saying goes: people who can rest can work better. Body is the capital of revolution. If their body breaks down, they can no longer work.   To get back to business, we talked about the distributed configuration center config of SpringCloud before. In this article, we talked about the dynamic refresh of config configuration, ...

2. What is Feign? Feign is also a hard role, and it is designed to make Java Http clients easier. Feign integrates Ribbon and RestTemplate to make load balancing Http calls, but encapsulates the original way (Ribbon+RestTemplate). Instead of manually using RestTemplate to invoke services, developers define an interface in which service call ...

Interview question: write a single case model that you think is the best Interview investigation point Purpose of investigation: single case mode can investigate a lot of basic knowledge, so many interviewers will ask this question. Small partners should note that during the interview process, any topic that can examine the ability of job s ...

In springBoot, we don't need to do any configuration to write directly at the business level Code, because springBoot Help US configure all the environments. Here's a simple springboot Project Analysis Project Code springBoot main program ```java @SpringBootApplication public class HelloApplication { public static void main(String[] arg ...

Requirements: in the project, it is inevitable to use scheduled tasks to perform some automatic operations. For simple scheduled tasks, you can add @ Schedule annotation to the method to execute scheduled tasks. However, if multiple modules of the same level execute the same method at different time points, there is no way to use @ Schedule onl ...

1: Abnormal 1. Concept It is divided into error and Exception. Error is generally handled without writing code Exception classification:              Compile time exception (checked): IOException (FileNotFound), ClassNotFound (class not found)             Run time exception (u ...

tag: java diagnostic stack online debugging time-consuming deadlock arthas Alibaba Arthas Arthas is an open source Java diagnostic tool of Alibaba, which is deeply loved by developers. Official website documents: https://arthas.aliyun.com/doc/ When you encounter the following similar problems and are helpless, Arthas can help you solve them: ...

Class lifecycle The first five steps together are the traditional whole process of class loading Among them, 2, 3 and 4 are collectively referred to as the link stage Class loads and initializes When the virtual machine is started, the main class specified by the user is initialized, which is the class where the main method is sta ...