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Quickly understand load balancing 1, Introduction to load balancing Learn more and pay attention code Zatan ! 1.1. Challenges faced by large websites Large websites have to face the challenges of huge number of users, high concurrency, massive data and so on. In order to improve the overall performance of the system, vertical expansion ...

1. Combination instead of inheritance 1. Inheritance Recently, Demo, a unity game of killing towers, was playing. Due to the limited level of individuals, the class inheritance level in the game was too deep, and the same attribute was held by many different parallel objects. As follows: Then the problem is: (1) Code modification is cumberso ...

Tip: after the article is written, the directory can be generated automatically. Please refer to the help document on the right for how to generate it preface Review the steps of Android component development architecture 1, Create Business component layer The Module created by the business component layer adopts phone & table, w ...

Write in the front: it's purely personal opinion. If you don't agree, you're right! If it helps you, congratulations. Introduction to embedded MCU programming - Thinking Following the above, thinking is the foundation. On the basis of thinking, it will be easier to understand the structure. If you haven't read the previous article, you can ta ...

Business management micro service design Merchant management microservice is an independent RESTAPI application that provides functions of merchant information management, merchant authority management and menu resource management through interface services. The development of merchant management micro service is implemented in the merchant R ...

SSO client design Next, the implementation of SSO client security authentication is encapsulated through the module merchant security, so that each client application accessing SSO can refer to it. Project management configuration for security certification The project management of SSO client security authentication uses the following d ...

The biggest difference between before and after React 16 is that 16 introduces fiber and implements hooks based on fiber. I mention fiber all day. What is fiber? What is its relationship with vdom? Instead of looking at various explanations, it's better to write a fiber version of React. When you can realize it, you must fully understand it. ...

We have already talked about the principle of Bloom filter [practical problem] - bloom filter for cache penetration (1) , we all understand that it works like this, so how do we use bloom filter in general? If you do it yourself, how do you do it? Bloom filter Read the definition again: Bloom Filter was proposed by Burton Howard Bloom in ...

Microservice architecture learning SpringBoot integration Druid Introduction to Druid A large part of Java programs need to operate the database. In order to improve the performance, they have to use the database connection pool when operating the database. Druid is a database connection pool implementation on Alibaba's open source platf ...

Chapter 1 - EL expression 1.1 EL expression overview What is an El expression Expression Language: Expression Language, jsp2 Built in JSP after 0 Purpose: in order to make the JSP easier to write, the value (the value stored in the domain object) is simpler. (instead of script <%% >) EL syntax ${el expression} Purpose of EL express ...