Java
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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…… -
23 design modes (8) Java appearance mode
23 design patterns Part 8: Java appearance pattern definition: Provide a consistent interface for a set of interfaces …… -
Java multithreaded programming example
I Relevant knowledge: Knowledge of Java multithreading programming: （1） Operate on the same quantity （2） Operate o…… -
Detailed explanation of three injection methods of spring bean
There are three ways to configure dependency injection for a bean in the spring container: Field injection is the most…… -
How to use fastjson
Introduction to fastjson Fastjson is a JSON processor written in Java language. 1. Follow http://json.org Standard is …… -
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…… -
Code examples of seven ways of thread synchronization in Java multithreading
Why use synchronization? Java allows multithreading concurrency control. When multiple threads operate a shareable res…… -
Java designer pattern simple factory pattern parsing
brief introduction Simple factory mode is also called static factory method mode. Simple factory mode usually defines …… -
Method example of solving the problem of losing handkerchief based on bidirectional ring linked list in Java
This paper describes the method of solving the problem of losing handkerchief based on bidirectional ring linked list …… -
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…… -
Analysis of purge deadlock in MySQL database
Purge deadlock Scenario description Purge deadlock description There are records (unique keys) 10, 20, 30, 40 (with se…… -
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…… -
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 …… -
Java design pattern — detailed explanation of factory design pattern
Factory pattern: it is mainly used to instantiate classes with common interfaces. Factory pattern can dynamically dete…… -
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 …… -
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…… -
Scheduled tasks based on quartz (detailed explanation)
brief introduction Quarzt is an open source project that regularly executes tasks in the project. Quartz is another op…… -
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…… -
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…… -
On the usage of = = and equals methods in Java
The equals method is Java Method of lang.Object class. There are two usage instructions: (1) For string variables, the…… -
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…… -
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 …… -
Introduction to hashcode method in Java
The data structure of hash table must be familiar to most people, and hash table will be used in many places to improv…… -
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…… -
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…… -
The concept, classification and usage of container in java development are explained in detail
This paper describes the concept, classification and usage of container in java development. Share with you for your r…… -
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…… -
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…… -
POM in Maven XML detailed introduction
POM represents the engineering object model. It is the basic build when working with Maven and is an XML file. It is p…… -
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…… -
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…… -
On the best practice of spring batch in large enterprises
In large enterprises, not all operations can be processed through the interactive interface due to complex business, l……