包含标签：Java 的文章
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【SpringCloud】05. High availability of Eureka
1. Simple situation 2. In order to achieve high availability of Eureka, multiple Eureka can register with each other. …… -
Source code analysis of PriorityQueue
an introduction to The PriorityQueue class is in Java 1 5 and as part of the Java Collections Framework. PriorityQueue…… -
Java virtual machine architecture
I. data type Similar to data types in the Java programming language, The data types that Java virtual machine can oper…… -
Java GUI quick start
There are two toolkits for writing GUI in Java, AWT and swing. Swing is an extension of AWT. Swing has more components…… -
Design pattern – singleton pattern
Design pattern It is a summary of the experience of classification, cataloging and code design that is repeatedly used…… -
Window – install Java
JDK Download Official website: https://www.oracle.com/java/technologies/javase-jdk8-downloads.html Baidu online disk: …… -
Some thoughts on code refactoring
Recently, the company engaged in zhongtaihua again. I was lucky to participate in the reconstruction of one of the pro…… -
【SpringCloud】03. Design principles of microservices
Design principles of microservices: 1、 AKF split principle The industry has a simple concept for scalable system arch…… -
Exploring the principle of threadpoolexcutor analyzing the implementation principle of AQS through reentrantlock
an introduction to Thread pool (English: thread pool): a thread usage mode. Too many threads will bring scheduling ove…… -
Java thread Basics
preface What is a thread? Threads, Sometimes called lightweight process (LWP), it is the smallest unit of program exec…… -
【SpringCloud】08. Client load balancer: Ribbon
Client load balancer: Ribbon Ribbon's core for soft load balancing: Ribbon main components: technological process: 1. …… -
Java notes: IO streams
1. IO flow understanding I in the IO stream is the abbreviation of the word input, It means input or read. O is the ab…… -
Java notes: reflection, annotation
1、 Reflection 1. Reflection mechanism The related classes of reflection mechanism except a Java Lang. class, the rest…… -
Java notes: Java object oriented
1、 Method 1. Overview Methods can also be called functions. In other languages, the concepts and syntax of methods an…… -
Java notes: common classes
For the use of built-in classes and methods in Java, we can usually read the corresponding API documents, but we still…… -
Java notes: Collections
A collection is a kind of container object, which is used to store objects, or stored references to objects. It is not…… -
Java notes: arrays, exceptions, generics
1、 Array Array is also a reference type. Its parent class is object. It is declared with "data type []". For example,…… -
Hystrix of spring cloud
In the microservice architecture, microservices are highly dependent on each other, and calls between them will inevit…… -
closing inbound before receiving peer’s close_ notify
Error details: Solution: just add usessl = false to the database connection URL. Refer to the problem solving link: cl…… -
FreeMarker generates HTML code based on the model
FreeMarker generates HTML code according to the model, which is essentially the same as FreeMarker generates java code…… -
Spring (14) programmatic transactions (Continued)
Spring programmatic transaction management The programming transaction management method allows you to manage transact…… -
Spring (XX) uses log4j to record logs
Log records are also commonly used, such as exception information records or other relevant information records. Good …… -
ThreadLocal memory leak
I saw an article about ThreadLocal memory leak on the Internet some time ago Therefore, I also studied the ThreadLocal…… -
Event handling in spring (9)
The core of spring is ApplicationContext, which manages the full life cycle of beans. ApplicationContext publishes cer…… -
Java date implementation + Tianzhi core code
Reqdto is the transfer object, and getvalidnum is the specific time, which is of type int by default. The number of da…… -
Spring cloud security
Spring security is a security framework provided by spring, which provides authentication and authorization functions.…… -
Remember a mistake about the use of SSM framework
Today, I encountered a very fucking problem. Finally, I found that I forgot to add @ Autowired to the corresponding se…… -
Two common solutions to undefined problems in front-end JSON acquisition
A friend from the blog Park answered: Why add "(" ("+ data +")); / / "to eval? The reason lies in the problem of Eval …… -
Druid encryption
As for why to encrypt, it mainly prevents too many people from knowing the database password, which may cause losses t…… -
Shiro actual combat series (IX) Web
1、 Configuration The easiest way to integrate Shiro into any web application is on the web Configure contextlistener …… -
AOP of spring (11)
A key component of the spring framework is the aspect oriented programming (AOP) framework. Aspect oriented programmin…… -
How to use java to send e-mail when port 25 of alicloud server is disabled (solve the problem of disabling port 25)
Usually, we use java to send mail locally. There is usually no problem, but if we deploy to the server, we may encount……