Programmer Group

Last article , we analyzed the initialization process of Netty server startup. Today, let's analyze the Reactor thread model in NettyBefore analyzing the source code, let's analyze where EventLoop is used?Connection listening registration of NioServerSocketChannelIO event registration for NioSocketChannelNioServerSocketChannel connection listen ...

The 12th class of Guji class Redis distributed lock Introduction to distributed locks Within the same JVM, we often use synchronized or Lock to solve the security problem between multiple threads. However, in the distributed architecture, between JVMs, a better locking mechanism is needed to deal with the thread security problem between cross ...

1. Time and date 1.1 Date class (application) Overview of Date class Date represents a specific time, accurate to milliseconds Date class constructor Method nameexplainpublic Date()Allocate a Date object and initialize it so that it represents the time it is allocated, accurate to millisecondspublic Date(long date)Allocates a Date object ...

1. Java's own tools and methods 1.1 the list set is spliced into comma separated strings 1.2 compare whether two strings are equal, ignoring case 1.3 compare whether two objects are equal 1.4 intersection of two List sets 2. apache commons tool class library 2.1 commons Lang, enhanced version of java.lang 2.2 common collections co ...

annotation Work for about a year. Before reviewing, I found that many basic knowledge learning was not solid enough. From today on, I will start the weekly self-study task and record it. This note is a self-study note, which can also be read and viewed by everyone. What is annotation? Java Annotation, also known as Java Annotation, is an Anno ...

Reference: Java language programming (Advanced) -- written by Mr. Liang Yong and translated by Mr. Dai Kaiyu Operating environment Windows10JDK8IDAE 1, Foreword In the Java language, if you want to judge the size of two variables, you may think of it first if(a > b){ // ... } However, this has great limitations. For example, t ...

Basic algorithm set of graph (shortest path and minimum spanning tree) 1. Shortest path algorithm (DFS Freud dijestra Bellman Ford) 1.1DFS two-point shortest path In fact, not only depth first search, but also breadth first search can solve such problems. DFS is introduced here. DFS and BFS are not much different in solving the problem of th ...

review In the previous article, we analyzed the type conversion, log adapter, class loading module and resolverutil (used to find qualified classes under the specified package), and also saw some design patterns used, such as adapter pattern and singleton pattern Next, go to a core of the basic support layer, DataSource DataSource In th ...

  preface When it comes to how to terminate a thread, the method that some readers usually think of immediately must be stop(), but the stop() method is not recommended (it is prohibited in many specifications). The reason is that forcibly terminating a thread will lead to abnormal termination of the program, incorrect release of resources, ...

The new features of Java 8 are mainly Lambda expressions and streams. When streams and Lambda expressions are used together, the code can become concise and easy to read because of the characteristics of stream declarative processing of data sets1 how to simplify code flowIf there is a requirement, you need to process the dishes queried in the ...