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Statement: respect other people's labor achievements. Please attach the original link to reprint! Learning and communication, for reference only! 1, Introduction to ThreadLocal 1. What is ThreadLocal? We know that in multithreaded programs, multiple threads access the same shared variable, which is easy to cause thread insecurity an ...

The source code of this article is okhttp: version 4.9.0. implementation("com.squareup.okhttp3:okhttp:4.9.0") GitHub address Basic Usage After creating the request Request, you need to create a RealCall object using the newCall() method of OkHttpClient, then call execute() to initiate synchronous requests or call enqueue() to initiate asy ...

HandlerInterceptor The top-level interfaces of interceptors in Spring MVC are as follows: package org.springframework.web.servlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.springframework.lang.Nullable; public interface HandlerInterceptor { default boolean preHandle(HttpServ ...

home pagespecial columngolangArticle details0alertmanager source code analysis (I)focus Published 6 minutes agoMonitoring alarm is generally taken as a whole, including data collection, storage, display, rule calculation, alarm message processing, etc. Alertmanager (hereinafter referred to as am) is an alarm message management component, includ ...

event driven Redis server is an event driver, which is divided into file events and time events File events: readable and writable events of socket Timed task They are all encapsulated in the aeEventLoop structure typedef struct aeEventLoop { int stop; // Identifies whether the event ends aeFileEvent *events; // File event array to store r ...

Express Source Analysis 1. What happened when express() was introduced and called? When using const express = require("express"), the default is to look for the index.js file under the express moduleIn index.js, we found that: module.exports = require('./lib/express'); This refers to the express.js file under the lib directoryIn ...

Hand tear ArrayList source code The article was first published in GitHub open source project: Java supernatural Road Introduction to ArrayList ArrayList is an array list. Its main underlying implementation is the Object array, but compared with the array in Java, its capacity can change dynamically and can be regarded as a dynamic arra ...