Recent Posts
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Implementation of many to many query based on mybatis advanced mapping
1. As before, first give a user a many to many requirement, To query the user and the commodity information purchased …… -
Java multithreading programming small example to simulate parking lot system
The following is a small example of a Java multi-threaded simulation parking lot system (Java is still widely used, ha…… -
Code example of converting Chinese characters to Unicode code in Java programming
The last time I came into contact with the knowledge of coding was when I was in college. I studied communication engi…… -
Basic operation of BigDecimal in Java (detailed explanation)
BigDecimal has four methods. Let's take a look at the two commonly used methods: The first: BigDecimal (double VAL) Tr…… -
Analysis of action thread safety in Struts
[problem description] Recently, the company arranged for me to interview java's freshman. The interviewers are general…… -
Simple definition and usage example of circular queue of Java data structure
This paper describes the simple definition and usage of circular queue of Java data structure. Share with you for your…… -
Java programming enumeration types! Enumeration types define and override enumeration methods
What is an enumeration type Enumerated type has long appeared in programming languages. It is used to contain a group …… -
On spring redirection Guide
1. General This article will focus on implementing redirect in spring and discuss the reasons behind each strategy. 2.…… -
JAVA memory overflow and memory leak
Although the JVM can automatically reclaim useless memory through GC, there is still a risk of memory overflow if the …… -
Parsing synchronized locked objects in Java programming
The picture upload password is changed to synchronized, which is a keyword used for synchronization in Java. Generally…… -
Java multithreading programming socket communication example code
There are many programming examples about Java multithreading communication spread on the network. This one is fairly …… -
Principle and implementation of double ended linked list of Java data structure
This paper describes the principle and implementation method of double ended linked list of Java data structure. Share…… -
Type conversion instance code in struts 2
Type conversion All the data transmitted by the page and controller are of string type. Various data types may be used…… -
Log4j uses detailed parsing
In short, log4j is an API class library that helps developers manage log output. Its most important feature is that th…… -
Java web to realize automatic login function
This example shares the specific code of Java Web to realize the automatic login function for your reference. The spec…… -
On the scope (sharing) of java basic data types
As follows: Float and double in Java comply with IEEE754 standard, and only their precision is output here. Problems t…… -
Details of ini settings under eclipse
Under Ubuntu system, eclipse configuration file: Here are a few questions: 1. What is the meaning of each parameter? 2…… -
Detailed explanation of using annotation to configure action method in struts 2
Using annotations to configure actions can achieve zero configuration, which will transform from pure XML based config…… -
Web project under SSM framework, web Function of XML configuration file (detailed explanation)
1. web. The characterencoding filter is configured in XML to intercept all resources and set the number format. Settin…… -
Detailed explanation of the use of Java validation background parameter verification
1、 Foreword In the background development process, the verification of parameters has become an indispensable link in…… -
Detailed explanation of Java synchronization framework abstractqueuedsynchronizer
Abstractqueuedsynchronizer overview Abstractqueuedsynchronizer is a very important framework class in Java. It impleme…… -
Emergence and solution of deadlock in Java multithreading
What is deadlock? Deadlock is a situation where multiple threads are blocked at the same time, and one or all of them …… -
Java multithreaded callable interface implementation code example
We are no strangers to multithreading. We are familiar with how to create threads. We won't say more about how to use …… -
Java aircraft game (with complete source code)
Write in front Technology comes from sharing, so today I take the time to organize and post the small games I have don…… -
A simple java student dormitory query system
This example shares the specific code of java student dormitory query system for your reference. The specific contents…… -
Java ID number authentication source code sample sharing
Sort out documents, search out a Java ID number verification source code sample code, a little finishing up and stream…… -
In depth analysis of three ways to build JSON strings (recommended)
JSON is a lightweight data exchange format, which is very common. Especially when AJAX is used, it is more common to e…… -
Classloader classloader_ Detailed explanation of loading method based on Java class
Basic concepts Classloader class loader, which is used to load Java classes into the Java virtual machine. Unlike ordi…… -
Introduction of mapping method between entity class attribute and data list in mybatis
Mybatis is not as automated as hibernate. It uses the @ column annotation or directly uses the attribute name of the e…… -
JBoss5. Introduction to configuring log4j under X
Recently, log4j was configured under JBoss. The directories of various versions of JBoss and the file names of JBoss a…… -
Method of reading excel and saving it to database with JXL in Java
The project involves reading the data in Excel and saving it to the database. It is relatively simple to use JXL. Basi…… -
Detailed use of Java regular expressions
The use of Java regular expressions is as follows: 1.Match Match is to match the whole string from the beginning to th……