Programmer Group

Why optimize When we need to connect with a new SMS service provider, what do we need to do? 1. Add a toolkit for a new third-party platform under sms 2. Add a new judgment in our case, judge the platfrom field and call the new toolkit. We also need to manually encapsulate the smsConfig class required by each channel 3. In the process of o ...

[note] this article is translated from: Introduction To Pragmatic Functional Java - DZone Java Practical functional Java is a modern, very concise but readable java coding style based on the concept of functional programming. Practical functional Java (PFJ) attempts to define a new idiomatic java coding style. The coding style will make full ...

I have something to say Good friends, let's play single sign on today. Friends who haven't contacted will ask, "ah, what is single sign on?" Single sign on is... emmm. . . I Baidu for a while. It's probably like this 👇 OK, it looks simple. On the surface, it means that as long as I integrate this single sign on, I can log in o ...

Process and thread Before learning Java multithreading, we need to understand the difference between process and thread. Process is a dynamic execution process of a program. It needs to go through a complete process from code loading, code execution to execution. This process is also the process of the process itself from generation, developm ...

[note] this article is translated from: Introduction To Pragmatic Functional Java - DZone JavaPractical functional Java is a modern, very concise but readable java coding style based on the concept of functional programming.Practical functional Java (PFJ) attempts to define a new idiomatic java coding style. The coding style will make full use ...

In this article, I want to complete the basic notes of the network programming model supported by Java, so that I and you can understand the I/O mode of network programming supported by Java. Introduction (small stove) Speaking of network programming, let's first understand the I/O modes of network programming supported by Java: BIO, NIO, and ...

        As we all know, C language is process oriented. It focuses on the process of the problem, analyzes the steps of solving the problem, and gradually solves the problem through function call. Java is based on object-oriented, which focuses on objects, that is, the main body involved in completing a thing, splitting a th ...

Inner class General learning objectives of common classes Inner classObject classCommon methods of Object classPackagingString classBigDecimal class Inner class classification Member inner classStatic inner classLocal inner classAnonymous Inner Class concept Define a complete class inside a class characteristic: After compilation, an ...

The scope in Spring is a. The default value, singleton, represents a single instance object: When the scope of a bean is set to singleton, there will only be one shared bean instance in the Spring IOC container, and all requests for a bean will only return the same instance of the bean as long as the id matches the bean definition. In other ...

preface Learn more about Spring. Tip: the following is the main content of this article. BeanDefinition What is BeanDefinition BeanDefinition represents a Bean definitionSpring creates Bean objects based on the BeanDefinitionBeanDefinition has many properties to describe a BeanBeanDefinition is a very core concept in Spring Import ...