Recent Posts
-
Java socket programming (I) socket transmission mode
Socket transport mode sockets have two main operation modes: connection oriented and connectionless Connection - orien…… -
Further understand the concept of polymorphism in Java
There are two kinds of polymorphism: 1) compile time polymorphism. For multiple methods with the same name, if it can …… -
Java gets the current time and the date of the previous day (implementation code)
Don't talk too much, just code -
Java reflection mechanism example explanation
This paper analyzes the java reflection mechanism with examples. Share with you for your reference, as follows: Reflec…… -
Java dynamically adding external jar packages to classpath
Java dynamically adding external jar packages to classpath preface: In the process of project development, we sometime…… -
-
Java programming to obtain the content instance resolution of the text box
How to get the value entered in the text box in Java and save it in a file. The specific codes are as follows: You sho…… -
Use the calendar object of Java to get the current date
Idea: First obtain the start and end dates of the current quarter, and push forward 3 months based on the current date…… -
Explain Maven’s POM Solving version problems with < exclusion > XML
Explain Maven's POM Solving version problems with < exclusion > XML One advantage of using Maven to manage libra…… -
Hibernate many to one single Association
Concept @ h_ 301_ 5@ Basic mapping is to map an entity. Association mapping is to deal with the relationship between m…… -
Introduction to Java programming commons Lang component
With Java The functions of Lang package are similar. The common Lang API also provides some basic and general operatio…… -
Understanding of Java encapsulation, inheritance and polymorphism
First, briefly describe the definition of its three characteristics: Encapsulation: hide the attributes and implementa…… -
Servlet file download steps and instructions
Servlet file download steps and instructions for your reference, the specific contents are as follows Reference articl…… -
Configuration details of log4j logs in SSM consolidation
I have searched many log configuration methods on the Internet. Of course, there are many results, but none of them is…… -
Collection framework summary of Java review
As the saying goes: review the old and know the new. Think about the knowledge you have learned. Even if you have lear…… -
Java traversal to read the content of XML file
This example explains the detailed code of Java traversing and reading the content of XML files, which is shared for y…… -
Learn more about the three states of Hibernate persistent objects
Objects in Hibernate have three states: transient objects, persistent objects, and offline objects. Figure 3.1 below s…… -
Implementation method of importing POI into Excel 2003 and Excel 2007 in Java
Implementation method of importing POI into Excel 2003 and Excel 2007 in Java Implementation code: be careful: JDK Ver…… -
Java programming countdown implementation method example
There are many ways to realize the countdown in Java programming. Let's briefly understand its implementation process …… -
Mybatis update operation return value problem
The back-end data persistence uses mybatis. When it is high and the account balance is increased or decreased, it plan…… -
Introduction to the Commons beautils component
Commons bean utils is a toolkit for operating java bean provided by Apache open source organization. Using commons bea…… -
How to use Java enumeration
How to use Java enumeration Foreword the flag and status in your code should be replaced by enumeration Many people sa…… -
Method of obtaining server temporary directory by struts 2
Struts 2 obtains the temporary directory of the server (tomcat, Weblogic) for your reference. The specific contents ar…… -
Object relational mapping in Hibernate
The essence of Hibernate is object relational mapping (ObjectRelational mapping). ORM saves object data to the databas…… -
Spring boot quick build micro service framework detailed tutorial
preface: Springboot appears to simplify the creation, running, debugging and deployment of spring applications. Using …… -
Bean inheritance and internal bean injection in Java spring framework
Bean definition inherits from bean definition. Bean definition can contain a lot of configuration information, includi…… -
Explain in detail the relationship between properties, methods and objects in Java inheritance
As we all know, subclass inheritance and parent class are type inheritance, including properties and methods! If the m…… -
Range instance code of integer value in Java
No more nonsense. I'll post the code directly to you. The specific code is as follows: What is the reason? 1。 Whe…… -
Usage Summary of common SQL tags for operating database in JSP
< SQL: setdatasource > tag set data source Syntax structure: -
Detailed example of Java static factory method
Detailed example of Java static factory method What is a static factory method For a class, the most common way to let…… -
Detailed explanation of Java inheritance examples in Java Tutorial
What are extensions? Inheritance: a newly defined class is a phenomenon of obtaining properties and methods from an ex…… -
Complete Guide to basic programming of socket communication in Java
What is a socket? Two programs on the network exchange data through a two-way communication connection. One end of thi……