Programmer Think

This is the first article in the Spring interview question series. The theme of this article is: the design patterns involved in Spring and how to answer in the interview as comprehensively, accurately and deeply as possible. This article only answers one question: What design patterns are used in Spring? How are the differences realized? ...

SpringIOC/AOP There are two unavoidable contents in each interview: Pre knowledge: dynamic agent, static agent, singleton mode, factory mode and singleton lock IOC: inversion of control Description: OOP is a design principle and the core of Spring framework Reason for use: A B two types attract each other to call B in A. Traditional: A ac ...

JDK dynamic agent 1. Use JDK to dynamically create Proxy objects by using the methods in the Proxy class (1) Call the newProxyInstance method Static object newproxyinstance (classloader, class <? > [] interfaces, invocationhandler h) Returns an instance of the proxy class of the specified interface that dispatches method calls to th ...

Spring AOP aspect oriented programming AOP (aspect oriented programming), one of the three core ideas in Spring: In the software industry, AOP is the abbreviation of Aspect Oriented Programming, which means: Aspect Oriented Programming, a technology to realize the unified maintenance of program functions through precompile and runtime dynam ...

This paper follows the above Build spring cloud alibaba microservice large application framework from 0 to 1 (III) (Mini cloud) build authentication service (authentication / resource separation version) oauth2.0 (Part I) It still introduces the construction details of the certification center 1. Process introduction The overall process is ...

survey In the recent report writing function, when the data is inaccurate, you need to check the SQL running on the current interface and compare whether there is a problem with the SQL. Then you need to get the SQL statement running on the interface on the business side. The realization of this function is mainly considered from two aspects. ...

Principle: first, call login, and a token will be passed to the front end. Later interfaces need to use this token. The front end needs to put the token into the request header and pass it when calling the interface. After the back end obtains the token, compare the obtained token with that in the database. If it is the same, it means that it h ...

[question] I don't think I need to introduce Spring's declarative transactions more. In a word, "since using Spring AOP, transaction management is really easy, really easy; transaction management code is gone, brain is not sour, hands are not painful, and transactions are fully equipped at one time; lightweight, easy to test, hey!". ...

Getting to know Spring Spring is a lightweight application framework with strong reusability and super adhesion. It provides IOC, AOP, ORM integration, WEB integration, etc The main core is: control inversion, face section IOC: it means to reverse resources to other threads. It is an object-oriented design idea AOP: aspect oriented programm ...

What is Javassist This is Javassist official website Description on: Javassist (Java programming assistant) makes Java bytecode operation simple. It is a class library for editing bytecode in Java; It enables Java programs to define a new class at run time and modify it when the JVM loads the class file. Unlike other similar bytecode editors, ...