Programmer Think

Give an example: For example, you should know that the @ Repository, @ Service, @ Controller annotations in the Spring framework are all marked by the @ Component annotation in the source code Question: Can you find the classes marked by @ Repository, @ Service, @ Controller by scanning @ Component annotation in native reflection or Spring ...

order This paper focuses on the JVM receiver plugin of skywalking JVMModuleProvider skywalking-6.6.0/oap-server/server-receiver-plugin/skywalking-jvm-receiver-plugin/src/main/java/org/apache/skywalking/oap/server/receiver/jvm/provider/JVMModuleProvider.java public class JVMModuleProvider extends ModuleProvider { @Override public String nam ...

Key words in this article: methods, nesting, recursion, classical problems 1. Nesting of methods 1. Conceptual Interpretation The concept of method nesting is actually better understood, that is, when a method is called, it encounters another method call. At the beginning of contact, although you can logically understand why the result is lik ...

1. Sorting algorithm is necessary and often used in programming, which must be learned. 2. In my opinion, the most suitable language for practicing various algorithms is not c language. The syntax of C language itself is simple and straightforward, and there is not much encapsulation, so it is suitable to describe the steps of the algorithm. 1, ...

1. Preface With the continuous iteration and development of Meituan take-out business, the number of take-out users is also growing at a high speed.In this process, take-out marketing plays a "mainstay" role, because the rapid growth of users cannot be separated from efficient marketing strategies.Because of the changing market and bu ...

1. AOP Concepts Official Interpretation: AOP (Aspect-Oriented Programming) is a technology that dynamically and uniformly adds functionality to a program without modifying its source code through precompilation and run-time dynamic proxies.It is a new methodology and a complement to traditional OOP programming.OOP is concerned with dividing req ...

First, install RabbitMQ corresponding to PHP. Here we use PHP ﹣ AMQP to implement different extension methods with slight differences php extension address: http://pecl.php.net/package/amqp The details are subject to the official website http://www.rabbitmq.com/getstarted.html introduce config.php configuration information BaseMQ.php MQ base ...

Title: Design a data structure to support the following operations under the average time complexity O(1). insert(val): when the element val does not exist, insert the item into the collection. remove(val): remove the item from the collection when the element val exists. getRandom: returns a random entry from an existing collection. Each el ...

1. NIO completes network programming 1.1 Selector boss Selector Selector, network programming using NIO's big brother!!! The server can execute a thread, run the Selector program, and listen. New connection, connected, read data, write data Common methods of Selector: public static Selector Ope ...

Branch programming (1) Simple branch program: two branches are obtained by judging a condition, and the judgment result of the condition determines the execution direction of the program. The disadvantage lies in the limitation of execution flow direction, for example, when the condition is a multi se ...