友谊时光系统服务端开发工程师（java）

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Getting to Know the Language

这是专门针对小白的零基础Java教程。

Master Java – a must-have language for software development, Android apps, and more! ☕️ This beginner-friendly course takes you from basics to real coding skills.

his guide provides a sampling of how Spring Boot helps you accelerate application development.

The author teaches you how to use Spring Boot from a complete beginner, to building a REST API with a real database, Dockerising it and deploying it to the cloud.

This guide walks you through the process of creating a “Hello, World” web site with Spring.

Spring MVC provides tools driving both typical web applications as well as REST APIs.

Microservice applications are composed of small, independently versioned, and scalable customer-focused services that communicate with each other by using standard protocols and well-defined interfaces.

Microservices - also known as the microservice architecture - is an architectural style that structures an application as a collection of two or more services.

Building small, self-contained, ready to run applications can bring great flexibility and added resilience to your code.

Microservices, or microservices architecture, is a cloud-native architectural approach in which a single application is composed of many loosely coupled and independently deployable smaller components or services.

Learn about software system design and microservices.

什么是SQL？简单地说，SQL就是访问和处理关系数据库的计算机标准语言。

Learn SQL with simple, interactive exercises.

In this video we will cover everything you need to know about SQL in only 60 minutes.

这是一篇 MySQL 通关一篇过硬核经验学习路线，包括数据库相关知识，SQL语句的使用，数据库约束，设计等。

your go-to resource for mastering MySQL in a fast, easy, and enjoyable way.

MySQL SQL tutorial for beginners

This beginner-friendly course teaches you SQL from scratch.

Get all the tutorials, learning paths, and more you need to start building—fast.

REmote DIctionary Server(Redis) 是一个由 Salvatore Sanfilippo 写的 key-value 存储系统，是跨平台的非关系型数据库。

In this video I will be covering Redis in depth from how to install it, what commands you can use, all the way to how to use it in a real world project.

Learn about Elasticsearch with this comprehensive course designed for beginners, featuring both theoretical concepts and hands-on applications using Python (though applicable to any programming language). The course is structured in two parts: first covering essential Elasticsearch fundamentals including index management, document storage, text analysis, pipeline creation, search functionality, and advanced features like semantic search and embeddings; followed by a practical section where you'll build a real-world website using Elasticsearch as a search engine, working with the Astronomy Picture of the Day (APOD) dataset to implement features such as data cleaning pipelines, tokenization, pagination, and aggregations.

Ok, so you want to learn how to use the Bash command line interface (terminal) on Unix/Linux.

The Linux command line is a text interface to your computer.

In this Linux crash course, you will learn the fundamental skills and tools you need to become a proficient Linux system administrator.

Never fear the command line again, make it fear you.

我们通过学习如何设计一个最基本的web容器来看它需要考虑什么；进而在真正学习Tomcat时，多把重点放在它的顶层设计上，而不是某一块代码上, 思路永远比具体实现重要的多。

This content is about Tomcat, a popular web server used by Java programmers and system administrators.

The Apache® Software Foundation (ASF) provides software for the public good, guided by community over code.

This guide gives a basic introduction to nginx and describes some simple tasks that can be done with it.

NGINX is open-source web server software used for reverse proxy, load balancing, and caching. It's important to understand, especially if you are a backend developer.

The cache is a layer that stores a subset of data, typically the most frequently accessed or essential information, in a location quicker to access than its primary storage location.

Caching strategies, Distributed Caching, Eviction Policies, Write-Through Cache and Least Recently Used (LRU) cache are all important terms when it comes to designing an efficient system with a caching layer.

A high available architecture is when there are a number of different components, modules, or services that work together to maintain optimal performance, irrespective of peak-time loads.

High availability (HA) is a term that refers to a system’s ability to be accessible and reliable close to 100% of the time.

Apache Flink 是一个分布式计算框架，它能够对有界和无界的数据流进行高效的处理。

This training presents an introduction to Apache Flink that includes just enough to get you started writing scalable streaming ETL, analytics, and event-driven applications, while leaving out a lot of (ultimately important) details.

Today’s businesses are increasingly software-defined, and their business processes are being automated. Whether it’s orders and shipments, or downloads and clicks, business events can always be streamed. Flink can be used to manipulate, process, and react to these streaming events as they occur.

Learn how to ingest and query data in ClickHouse using the New York City taxi example dataset.

ClickHouse is an open-source column-oriented DBMS for online analytical processing that allows users to generate analytical reports using SQL queries in real-time.