包含标签：Java 的文章
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Java knowledge necessary for testing (I) — Java Foundation
Java Foundation How does Java work? The developed java source code is compiled into a platform independent bytecode fi…… -
Summary of basic problems of Java generics
Generics is a new feature of Java se 1.5. The essence of generics is parameterized types, that is, the data type opera…… -
【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 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,…… -
Could not get a resource from the pool
Key error information: could not get a resource from the pool The common reason is that redis on the remote server is …… -
Dynamic SQL of mybatis
If you use ORM frameworks such as JDBC or hibernate, you often have to splice SQL as needed, which is a very troubleso…… -
availableProcessors is already set to [8], rejecting [8]
Error details: Key information is as follows: Through keyword search, a solution is found because the netty of springb…… -
Sharing of Java related framework data and its basic data, advanced data and test data
Personal note: just for sharing, not for others. May all programmers soar freely in the programming world! In my opini…… -
Renren security of Renren open source read “writing high quality code: 151 suggestions for improving Java programs”
Ren security, I will study it in detail from this week. The previous research is only shallow. As stated in reading "w…… -
org. springframework. beans. factory. Beancreationexception: error creating bean with name ‘jpamappingcontext
Background of error: migrate the blog project previously written in eclipse to idea. The ecilpse project has never bee…… -
Batch addition example of SSM framework (synchronous request JSP view parsing)
Preparation environment: SSM framework + jdk8 / JDK7 + mysql5 7 + maven3up + tomcat8 / 7 application server Example de…… -
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……