Java
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Quickly understand composite patterns in Java design patterns
Composite pattern is a common design pattern (but I think it is a little complex). It is also called composite pattern…… -
Function of Java programming interface call and code sharing
Many junior Java programmers are confused about the meaning of the interface. I don't know what the interface does and…… -
Function description of sending mail using components in spring framework
The spring framework was created due to the complexity of software development. Spring uses basic JavaBeans to do thin…… -
Detailed explanation of spring boot log control
The log processing of spring boot is completely consistent with our usual log processing through logback XML for log m…… -
23 design patterns (1) Java singleton pattern
23 design patterns Part 4: Java singleton pattern definition: Singleton pattern is a common software design pattern. I…… -
Example code of coding and garbled code when java servlet uses printwriter
In the coding and garbled code series in the previous web pages, the dynamic response stream constructed by servlet ha…… -
An example of implementing AOP by dynamic agent simulation
AOP implementation code is quite simple The main core is dynamic proxy and reflection I Interface class: II Interface …… -
CAS explanation of Java Concurrent Programming
CAS (compare and swap) compare and replace is a technique used in designing concurrent algorithms. In short, compare a…… -
Struts 2 implements the interception operation method of action request object
The core function of struts 2 is action. For developers, using struts 2 is mainly to write action. Action classes usua…… -
Method of creating a server using spring boot embedded container undertow
Undertow is a web server, so it needs to have the basic characteristics of modern web server, such as servlet, JSP, fi…… -
Case analysis of spring boot email sending function
Introduction to mail service Mail service has appeared in the early days of the Internet, and now it has become an ind…… -
Detailed introduction to spring batch tutorial (with source code)
Spring batch is an open source batch processing framework Perform a series of tasks In spring batch, a job consists of…… -
Heap sorting code example of Java algorithm
Heap is a special complete binary tree, which is characterized by that all parent nodes are smaller than child nodes, …… -
When debugging in eclipse, you can’t view the variable value when hovering over the mouse. Solution
Problem Description: in debug mode, eclipse does not automatically display the corresponding value of a variable when …… -
Summary of recursive algorithms in Java programming
1. What is recursion Personal understanding is to call yourself until a condition is met to end the process. This is r…… -
Explain in detail some small problems encountered when configuring spring boot actuator
preface Spring boot actuator is a monitoring component provided by spring boot. You only need to add dependencies in t…… -
Publish the spring boot project to the Tomcat container (including the methods published to Tomcat6)
Because spring boot is embedded with Tomcat container, the project can be published by packaging it as a jar package, …… -
Detailed explanation of smooth closing of Message Queue task in Java
preface Message Queuing Middleware is an important component in distributed system. It mainly solves the problems of a…… -
Detailed explanation of variables and constants in Java
variable and constant There are a lot of data in the program to represent the state of the program. Some data will ch…… -
Java designer pattern simple factory pattern parsing
brief introduction Simple factory mode is also called static factory method mode. Simple factory mode usually defines …… -
An example of paging query implemented by SSM
Implementation of paging query with SSM integration 1、 Pagination is realized through the limit query statement and d…… -
Java gets an instance of the relative webapp address of a web project
Examples are as follows: The above example of Java obtaining the relative webapp address of a web project is all that …… -
Method of obtaining path based on Java file and web application
1. Understanding of basic concepts `Absolute path `: the real path of the file or directory on your application on the…… -
Example of using URL + urlconnection in Java network programming
catalogue HTTP get and post From URLs to local files In Java Net package contains two interesting classes: URL class a…… -
How to create a JDBC program in Java
Introduction to JDBC Before JDBC, we use drivers to establish connections between Java programs and databases such as …… -
Detailed explanation of Maven configuration dependency of spring boot
This paper introduces the Maven configuration dependency of spring boot and shares it with you as follows: We add spri…… -
Example of application packaging deployment implemented by spring boot
1. Spring boot built-in web Spring boot is integrated into the web container by default. The startup method is started…… -
Panel switching in Java singleton mode
This example shares the specific code of panel switching in Java singleton mode for your reference. The specific conte…… -
Summary of the concept, principle and usage of java reflection mechanism
This paper describes the concept, principle and usage of java reflection mechanism with examples. Share with you for y…… -
Reasons for choosing an embedded container for spring boot projects
Spring boot is a new framework provided by pivot team. It is designed to simplify the initial construction and develop…… -
Solution to the dependency problem of creating project package by spring boot
Today, I tampered with the spring boot. According to the case on the official website, I found that there was a proble…… -
Implementation of BlockingQueue for Java Concurrent learning
1. Introduction Blocking queue is a Java util BlockingQueue, an important data structure under concurrent package, pro……