Understanding Apache HttpClient: Your Diplomat in Network Communication Hey, friends! Niu Ge is back! Today we’re going to talk about a “diplomat” in the Java world – Apache HttpClient. Remember the weather query app we built last time? We used this powerful tool. Today, let Niu Ge take you deeper into understanding this network communication … Read more
For more quality interview questions and study notes, visit KamaCoder Notes:https://notes.kamacoder.com Today’s recommended quality notes: https://notes.kamacoder.com/questions/500003 “What are the HTTP request methods?” unsetunsetBrief Answerunsetunset HTTP/1.1 originally defined 8 core request methods (RFC 2616, 1999): GET: Retrieve resources, parameters in the URL, safe and idempotent. POST: Submit data (e.g., form data), may change server state. PUT: … Read more
Go 1.22 introduces several optimizations, particularly in terms of HTTP performance. As Go continues to evolve, enhancements related to HTTP performance are crucial since HTTP is a core component of many applications. Here are 4 updates regarding HTTP performance optimization in Go 1.22: 1. Optimized Memory Management for HTTP/2 Requests Go 1.22 has made memory … Read more
Web Crawlers are a common application scenario in Python, primarily used to gather information from the internet. Since crawlers rely on the network, it is essential for us to understand what a network is. A network consists of several nodes connected by links, and the vast network formed by connecting multiple networks is called the … Read more
To pass the time, I will provide a detailed explanation of the MQTT protocol code implementation I wrote earlier; the main content will analyze and implement the MQTT network communication protocol, specifically involving the processing of network data stream segmentation. Therefore, much of the content will involve specific code functionalities. If you are interested in … Read more
MQTT (Message Queuing Telemetry Transport) and EMQX are two widely used communication technologies in the Internet of Things (IoT) and messaging systems. Although both are used for real-time communication and data transmission, there are some notable differences in their design, functionality, and features. This article will detail the differences between MQTT and EMQX, including protocol … Read more
MQTT: IoT Device Communication Protocol Stack Around us, more and more smart devices are quietly changing our lives. Have you ever wondered what happens behind the scenes when you use a mobile app to turn on the smart bulb at home? Today, let’s explore the “delivery guy” of communication between IoT devices – the MQTT … Read more
Basic Definition The full name of the MQTT protocol is (Message Queuing Telemetry Transport), which is a lightweight communication protocol based on the publish/subscribe model. Many textual descriptions of the MQTT protocol can be found online: it is a lightweight communication protocol based on the Publish/Subscribe model and built on top of the TCP/IP protocol. … Read more
13.6.2 Understanding the MQTT Protocol Visually Using the roles of a TV station, reporter, and audience makes it easier to understand: TV Station: In MQTT, it is referred to as the server (broker). It has the following functions: ① Accepts network connections from clients; // reporters/audience connect to the TV station ② Accepts application information … Read more
MQTT: The Best Companion for IoT Messaging Hello everyone! Today I want to talk to you about a very important communication protocol in the field of IoT — MQTT. As a lightweight messaging protocol, MQTT is particularly suitable for IoT applications that require low bandwidth and have unstable networks. Whether it’s smart homes, industrial monitoring, … Read more