Java
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Explain the online and offline email notification of spring boot admin monitoring service
This article introduces the online and offline email notification of spring boot admin monitoring service and shares i…… -
Java write string to text file code example
1、 Filewriter and file -- write string to text file 2、 InputStream and OutputStream input and output streams 3、 Obj…… -
Maven project refers to the method of external jar package
Problem Description: There is a Java Maven web project, which needs to introduce a third-party package GDAL Jar, but t…… -
Four coding skills that Java programmers must know
If you were asked to optimize your Java code now, what would you do? In this article, the author introduces four metho…… -
Spring boot integrates Shiro and uses mongodb for session storage
preface Shiro is a permission framework. You can view its official website for specific use http://shiro.apache.org/ I…… -
Understanding of bio, NiO and AIO in Java
In the design of high-performance IO system, several terms and concepts often confuse us. The details are as follows: …… -
Bean life cycle of spring learning notes
preface In the last article, I mainly learned the configuration, injection and custom attribute editor of beans. Today…… -
Detailed explanation of log4j and AOP in spring MVC project
preface Log processing is a very important part of each project. Without logs, the controllability of the system will …… -
An example of generating a help document from a document annotation in Java
Example: Generate command Pay attention to person Java pathname should be correct. effect: Including index Html is the…… -
Broadcast form based on UDP in Java (example explanation)
UDP --- user datagram protocol is a simple datagram oriented transport layer protocol. UDP does not provide reliabilit…… -
Mybatis inserts one or batch inserts and returns instances with self growing primary key records
First of all, the version of mybatis that inserts a record and returns the primary key needs to be upgraded to 3.3 Ver…… -
Variant of binary search in Java
This example shares the variants of binary search in Java for your reference. The specific contents are as follows Gen…… -
Custom BufferedReader instance
The purpose of buffer establishment is to increase the transmission performance and make us transmit data faster The i…… -
A method of transforming a common web project developed in Java into a maven project
preface Maven is based on the project object model (project object model), a project management tool that can manage p…… -
Explain the URL pattern matching rules of servlets
This article introduces the URL pattern matching rules of servlets and shares them with you as follows: First, we need…… -
Based on the read and readLine methods in the custom BufferedReader
Examples are as follows: In this way, OK can be detected Both detection methods are OK. The above article is based on …… -
Java implementation of integer factorization prime factor method example
This paper describes the method of integer factorization in Java. Share with you for your reference, as follows: Title…… -
Analysis of spring AOP implementation principle
What is AOP AOP (aspect oriented programming) can be called OOP (object-oriented programming). OOP introduces the conc…… -
Java makes an example analysis of object from the perspective of JDK source code
Object is the parent class of all classes, that is, all classes in Java inherit directly or indirectly from the object…… -
Spring boot + mybatis + orcale implementation steps example code explanation
After the last implementation, add mybatis to query the orcale database Step 1: create several necessary packages. The…… -
Java Swing multi thread loading pictures (ensure consistent order)
When I was a sophomore, I did the course design and picture manager. At that time, I encountered many folders with pic…… -
Problems and solutions of Java eclipse import project (recommended)
Today, I imported several projects through eclipse. The project name appears red cross, which is intolerable for obses…… -
Java write excel operation source code sharing
These two days, I helped the teacher to build a database and import the data of all experimental transactions into the…… -
Detailed explanation of java socket communication based on bio
Bio, that is, blocking io. During socket based message communication, the socket server provides services to the outsi…… -
Java implements a specific range of complete output algorithm examples
This article describes the Java implementation of a specific range of completion output algorithm. Share with you for …… -
Spring security combined with JWT method tutorial
summary As we all know, the advantage of using JWT for permission verification over session is that session needs to o…… -
Java programming implements the method of counting the occurrence times of each character in a string
This example describes the method of counting the occurrence times of each character in a string by Java programming. …… -
Method for implementing distributed application current limiting based on redis
The purpose of current limiting is to protect the system by limiting the speed of concurrent access / requests or requ…… -
Summary of pit records using spring data JPA
preface Basic introduction to spring data JPA: JPA was born to integrate the third-party ORM framework and establish a…… -
Detailed explanation of factory pattern implementation method of Java design pattern
This paper describes the factory pattern implementation method of Java design pattern. Share with you for your referen…… -
An example of base64 encryption and decryption in Java 8
First, encryption. Here I use the base64 class The second is decryption, The above example of base64 encryption and de…… -
Analysis of object class instances in Java
Q: what is the object class? Answer: the object class is stored in Java Lang package is the ultimate parent class of a……