Recent Posts
-
Java super simple crawler example explanation
Crawl the data of the whole page and effectively extract information. If there are comments, there will be no nonsense…… -
Function example of exporting objects using Excel tool class in Java
This paper describes the function of exporting objects using Excel tool class in Java. Share with you for your referen…… -
5 code examples of concurrent processing skills
In this paper, the author summarizes five techniques for dealing with concurrent programs, and gives code examples to …… -
Analysis and resolution of @ postconstruct exceptions executed many times in spring timing tasks
discover problems A function has just been modified in the project recently. The code is preparing for verification. S…… -
Java exploration thread + IO file encryption and decryption code example
In this article, we share several pieces of code, mainly about the encryption and decryption of thread + IO files. Let…… -
In depth analysis of the differences and uses between mybatis and Hibernate
For a long time, I was unfamiliar with mybatis. I only knew that it was an ORM database framework like hibernate. With…… -
Detailed explanation of bean life cycle used by spring configuration
Basic concepts The life cycle of a bean in spring refers to the process from creation to destruction of a bean. Let's …… -
Java create and end thread code example
This article describes the most basic method of how to create and end threads in Java, only for java beginners. Some a…… -
Complete example of image upload tool class implemented in Java
This article describes the image upload tool class implemented in Java. Share with you for your reference, as follows:…… -
Detailed explanation of data locality on Hadoop
Detailed explanation of data locality on Hadoop Data locality in Hadoop refers to the "proximity" of the data with res…… -
Servlet filter and listener based on Java (detailed explanation)
1 filter 1. What is the filter? A special component defined in the servlet specification for intercepting container ca…… -
An instance of reading peroperties file based on JavaBean editor
introduction Recently, I reread the book "proficient in Spring + 4. X + + enterprise application development practice"…… -
Explicit locking mechanism of Java Concurrent Programming
We have previously introduced the synchronized keyword to realize the atomic operation of the program. Its internal is…… -
Java implements the merging and output of multiple documents to one document
This example shares the specific code of Java to merge and output multiple documents to one document for your referenc…… -
Java object oriented programming (encapsulation / Inheritance / polymorphism) instance parsing
This paper mainly introduces the analysis of three object-oriented feature examples. Let's see the specific content. e…… -
The UUID tool class for generating random string primary keys is implemented in Java
This example describes the UUID tool class for generating random string primary keys in Java. Share with you for your …… -
Detailed explanation of Java collection inheritance system
Java's collection class is a particularly useful tool. It can be used to store multiple objects with different numbers…… -
Explain Java singleton mode with pictures and texts
PS: first of all, we need to know what a singleton is, why it is used, and what are the benefits of using it. 1: Singl…… -
Detailed explanation of set relation diagram and common operations in Java
The following is a downloaded inheritance diagram of collection types in Java to facilitate correct understanding and …… -
Spring MVC combines spring data JPA to realize conditional query and paging
This example shares the specific code of Android Jiugongge picture display for your reference. The specific contents a…… -
MyEclipse removes the line numbers (regular line numbers) of the code copied from the Internet
1、 Regular expressions remove code line numbers As developers, we often copy some code from the Internet. Sometimes t…… -
How to obtain the province and city corresponding to the IP address by Java request
preface In a recent project, users in different provinces need to display different contents, so you need to obtain th…… -
Java date related class examples
1、 Date class Class date represents a specific moment, accurate to milliseconds. The number of milliseconds (long) fr…… -
How to find Java installed by yum_ Detailed explanation of home environment variables
preface Many programs that need javac in development depend on Java_ Home environment variable If you manually downloa…… -
Detailed explanation of stream flow examples of new features in Java 8
What is a stream? A stream stream is a data channel used to manipulate a sequence of elements generated by a data sour…… -
Detailed explanation of semaphore counting semaphore in Java Concurrent Programming
Semaphore is a counting semaphore, and its essence is a shared lock. Semaphores maintain a semaphore permission set. T…… -
Java programming to achieve a simple collision detection function example in the game
This article describes the simple collision detection function in Java programming. Share with you for your reference,…… -
Spring connection database and JDBC template (example explanation)
preface Today's introduction is about the database connection of spring and the API methods related to the JDBC templa…… -
Java 8 uses lambda to implement Java tail recursion
preface What this article introduces is not new knowledge, but the comprehensive application of some knowledge explain…… -
Analysis of future in Java and Scala
With the increase of CPU cores, asynchronous programming model has been more and more applied in the field of concurre…… -
Brief introduction to eclipse code formatting settings
Unified eclipse formatting Java, JavaScript, JSP and HTML code settings in self use projects Before formatting: After …… -
MyEclipse 10 installing the log4e plug-in
1、 Log4e plug-in download Download address: http://log4e.jayefem.de/content/view/3/2/ 2、 Install log4e plug-in ……