java reflection
@TOC Brief introduction of reflection The soul of frame design Framework: semi finished software. Software development can be carried out on the basis of the framework to simplify the codingReflection: encapsulating the various components of a class into other objects is the reflection mechanisUTF-8...
Posted by tweet on Mon, 17 May 2021 08:04:59 +0930
Learning journey of Java EE spring boot
Why use SpringBoot SpringBoot improves and optimizes the above shortcomings of Spring, based on the idea that convention is better than configuration, which allows developers to devote themselves to the code writing of logical business without switching between configuration and logical busineUTF-8...
Posted by php_tom on Sat, 12 Jun 2021 07:29:23 +0930
JAVA multithreading
1, What is multithreading? Roughly speaking, multithreading usually means that when a program is running, multiple threads of CPU are used to complete some tasks at the same time. This kind of behavior is called multithreading, and this way is multithreading. 2, What's the use of multithreadinUTF-8...
Posted by jonah on Tue, 15 Jun 2021 03:35:43 +0930
JDBC quick start, mysql8.0 version + druid+spring jdbc use, due to the wrong version of the solution
JDBC core technology JDBC overview Data persistence Persistence: saving data to a power down storage device for later use. In most cases, especially in enterprise applications, data persistence means that the data in memory is saved to the hard disk to be "solidified", and the implementation prUTF-8...
Posted by idgeit on Sat, 26 Jun 2021 06:59:05 +0930
mybatis learning summary
1. Introduction to mybatis 1.1. What is Mybatis? MyBaties is an excellent persistence layer framework,It supports customized sql, stored procedures and advanced mappingMybatis avoids almost all JDBC code and manual setting of parameters and obtaining result set. Mybatis can use simple XML or aUTF-8...
Posted by nafetski on Thu, 01 Jul 2021 04:44:20 +0930
JavaEE learning-Day08-10 object oriented
1, Object oriented concept The real world: Class: an abstract concept that classifies things with the same characteristics and behaviors First there is the concept of entity, then there is the concept of class Code world: Class: the abstract concept of grouping objects with the same properties UTF-8...
Posted by tolputt-craig on Sun, 04 Jul 2021 06:35:40 +0930
JavaEE learning - Day9 object oriented - inheritance, rewriting, access modifiers
1, Object oriented 8. Succession Inheritance means that a subclass inherits the characteristics and behaviors of the parent class, so that the subclass object (instance) has the instance domain and methods of the parent class, or the subclass inherits methods from the parent class, so that the UTF-8...
Posted by mlcheatham on Wed, 07 Jul 2021 04:39:31 +0930
The concept and creation of multithreading
Multithreaded 1. Concurrency and Parallelism Concurrency: The occurrence of two or more events in the same time periodParallel: Two or more events occur at the same time (simultaneously) 2. Thread and process concepts Process: refers to an application running in memory, each process has a separUTF-8...
Posted by remlabm on Sat, 17 Jul 2021 05:04:09 +0930
After two days, I finally summed up Jackson! Share it with you
Jackson common notes Serialization annotation @JsonAnyGetter Serialize Map like normal attributes public class ExtendableBean { public String name; private Map properties; @JsonAnyGetter public Map getProperties() { return properties; } } Serialization example: {UTF-8...
Posted by procoder on Thu, 22 Jul 2021 07:45:17 +0930
Initial JSON Parsing
Preface This blog is only for self-study review. If you want to learn JSON, you can use this blog as a starting difficulty and a learning springboard. Here I suggest you, after learning this JSON analysis, you can go to these two places for further learning. Adversity is for learning. I have lUTF-8...
Posted by Bob_PHP_Builder on Wed, 28 Jul 2021 01:50:57 +0930