Java
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Java implements a tool class for compressing files into zip
Recently, I came across a need to download the zip package, so I found the zip tool class written by others on the Int…… -
Usage of mybatis @ alias annotation on classes (recommended)
For example, use the annotation @ alias ("ddebtentity") on the class Then in mapper Resulttype = "ddebtentity" in XML …… -
Prototype pattern of design pattern
Definition: specify the type of objects to be created with prototype instances, and create new objects by copying thes…… -
Explain the prototype pattern in Java design pattern programming in detail
Definition: specify the type of objects to be created with prototype instances, and create new objects by copying thes…… -
Detailed explanation of an example of realizing the recipe function of the gourmet world based on Java appearance mode
This article describes the implementation of the recipe function of the gourmet world in Java based on appearance mode…… -
Example of high temperature early warning function of Meteorological Bureau using observer mode in Java
This paper describes how Java uses observer mode to realize the high temperature early warning function of the Meteoro…… -
Detailed explanation and example of stack of java8 collection
Stack of Java collections Summary: Stack is a stack, and its feature is Filo (first in last out). Stack is inherited f…… -
Example explanation of log management by spring AOP custom annotation
Today, we continue to implement AOP. So far, I personally think it is the most flexible and extensible way. Take log m…… -
Spring security implementation permission management example
An example of permission management implemented by spring security is as follows: 1. Configuration file 1、POM. xml 2.…… -
Map positioning function in Java wechat development
Page code: summary The above is the map positioning function in Java wechat development introduced by Xiaobian. I hope…… -
Java method for converting PDF to picture
This example shares the specific code of PDF to picture in Java for your reference. The specific contents are as follo…… -
Detailed explanation of @ mapkey annotation in mybatis
Mybatis was originally ibatis, but now it has separated from the Apache foundation. The new official website is http:/…… -
Deep understanding of circular dependencies in spring
Cyclic dependence Definition: circular dependency refers to circular reference, that is, two or more beans hold each o…… -
Implementation of Java Sketchpad
I believe many people have used the drawing board of windows. This time, let's talk about the implementation of the si…… -
Java implementation of two person Gobang game (3) draw chess pieces
The previous article talked about the Java implementation of two person Gobang game (2). Draw the chessboard, and then…… -
Implementation of Java Sketchpad
I believe many people have used the drawing board of windows. This time, let's talk about the implementation of the si…… -
Explain the builder pattern and prototype pattern in Java design pattern programming
Builder pattern definition is also called generator pattern. It can abstract the construction process of complex objec…… -
Solution to the failure of obtaining new page elements based on Selenium
When we use selenium to realize simulated Login, after obtaining the login button element, we can directly call its cl…… -
Detailed explanation of using rabbitmq routing in spring boot
In the last tutorial, we created a fan out switch. We can deliver messages to multiple consumers in the form of broadc…… -
Sample code for using rabbitmq in spring boot
I haven't written about spring boot for a long time. I happen to be writing about spring cloud bus recently. Because t…… -
Method for realizing timing task with rabbitmq delay queue
scene Timed tasks are often used in development. For shopping malls, there are many timed tasks, such as timed expirat…… -
Configuration file application. In spring boot Properties usage
1、 Call of configuration document configuration item @ h_ 301_ 4@ After startup, enter @ h directly in the browser_ 3…… -
Example of Java simulating ordered linked list data structure
Ordered linked list: sort by key value. When the chain head is deleted, the minimum (/ maximum) value is deleted. When…… -
Deep analysis of Java exceptions
Java exceptions are divided into two categories: checked exceptions and runtime exceptions. Checked exceptions are exc…… -
A simulation example of train ticketing system based on Java multithreading
1. Preface In order to learn multi-threaded sharing and communication, we simulate a train ticketing system, assuming …… -
Explain in detail the four ways spring loads the properties configuration file
1、 Load the configuration file through the context: Property placeholder tag 1. Usage example: in spring Add tags to …… -
Zuul gateway service of spring cloud
Why do I need a gateway? We know that we want to enter a service itself. Obviously, we don't have a particularly good …… -
Java code practice 12306 ticketing algorithm (II)
On Friday, I had nothing to do. Based on the previous article on the analysis of 12306 ticket selling algorithm (Java …… -
Explain how to load the properties configuration file using spring
I remember that when writing a web project, the reading of the configuration file was completed with the class propert…… -
Spring boot uses rabbitmq to implement topic topics
In the previous article, we implemented the flexible configuration of the message system. Instead of using the fan out…… -
Method of batch importing Excel data using POI in Java
1、 Definition Apache POI is an open source function library of the Apache Software Foundation. POI provides APIs for …… -
Implementation method of Java selenium using browser debugging tool
In UI element - based automated testing, both desktop UI automated testing and Web UI automated testing First, we need……