SpringBoot + JWT + Redis open source knowledge community system

"Java Learning + Interview Guide" covers the core knowledge that most Java programmers need to master. To prepare for Java interviews, JavaGuide is the first choice! : https://javaguide.cn/

Hello, I'm Guide! This is the ninth issue of JavaGuide's "Recommendation of High-quality Open Source Projects". In each issue, I will select 5 high-quality Java open source projects.

Portal of the first 8 issues of "High Quality Open Source Project Recommendation": https://javaguide.cn/open-source-project/

You can find more high-quality Java open source projects through awesome-java (a great collection of Java open source projects, a must for finding Java projects).

Github address: https://github.com/CodingDocs/awesome-java
Gitee address: https://gitee.com/SnailClimb/awesome-java
Online reading: https://javaguide.cn/open-source-project/

mini-spring-cloud: Simplified version of Spring Cloud

mini-spring-cloud is a handwritten simplified version of Spring Cloud, designed to help you quickly familiarize yourself with Spring Cloud source code and master its core principles.

mini-spring-cloud implements the core functions provided by the Spring Cloud ecosystem, such as service registration, service discovery, load balancing, integration of Feign to simplify calls, flow control, circuit breaker downgrade, and API gateway. Moreover, for the realization of each function, mini-spring-cloud also comes with detailed source code analysis.

Github address: https://github.com/DerekYRC/mini-spring-cloud

ANTLR: A Powerful Grammar Parser

Antlr (Another Tool for Language Recognition) is a powerful lexical and syntactic parser that can be used to read, process, execute and translate structured text or binary files.

Antlr is widely used in academia and industry to build various languages, tools, and frameworks. For example, query parsing in Twitter search is based on ANTLR, and HBase access client Phoenix uses Antlr for SQL parsing.

Antlr is implemented in the Java language and supports Java, C#, JavaScript, Python, Go, C++, Swift and other programming languages. Currently, it has 12k+ Stars on Github.

The author of Antlr is Google's Tech Lead and a professor of data science and computer science at the University of San Francisco. Since 1989, he has been deeply involved in the development and research of language tools. It took 25 years until the release of ANTLR 4, which he thought he was satisfied with.

Spring Cloud Tencent: Tencent's version of Spring Cloud

Spring Cloud Tencent is Tencent's open source one-stop microservice solution.

The capabilities provided by Spring Cloud Tencent include but are not limited to:

Service Registration and Discovery
Dynamic configuration management
Service Governance
- Service throttling
- Service circuit breaker
- service routing
- …

The picture comes from the project Github home page

Spring Cloud Tencent officially provides an experience environment, address: http://14.116.241.63:8080/ (account and password are both polaris).

Github address: https://github.com/Tencent/spring-cloud-tencent

QR-Code-generator: High-quality QR code generation library

QR-Code-generator is a high-quality QR code generation library that supports multiple languages (Java, TypeScript/JavaScript, Python, Rust, C++, C).

Compared with the same type of QR code generation library, the code of QR-Code-generator is more concise and the documentation comments are more detailed.

The code example of generating QR code based on QR-Code-generator in Java language is as follows:

import java.awt.image.BufferedImage;
import java.io.File;
import java.util.List;
import javax.imageio.ImageIO;
import io.nayuki.qrcodegen.*;

// Simple operation
QrCode qr0 = QrCode.encodeText("Hello, world!", QrCode.Ecc.MEDIUM);
BufferedImage img = toImage(qr0, 4, 10);  // See QrCodeGeneratorDemo
ImageIO.write(img, "png", new File("qr-code.png"));

// Manual operation
List<QrSegment> segs = QrSegment.makeSegments("3141592653589793238462643383");
QrCode qr1 = QrCode.encodeSegments(segs, QrCode.Ecc.HIGH, 5, 5, 2, false);
for (int y = 0; y < qr1.size; y++) {
    
    
    for (int x = 0; x < qr1.size; x++) {
    
    
        (... paint qr1.getModule(x, y) ...)
    }
}

Github address: https://github.com/nayuki/QR-Code-generator.
Official website: https://www.nayuki.io/page/qr-code-generator-library.

forest: the next generation of knowledge community system

Forest is a next-generation knowledge community system that can customize topics and portfolios.

The backend of forest is based on SpringBoot + Shrio + MyBatis + JWT + Redis, and the frontend is based on Vue + NuxtJS + Element-UI.

A very niche project, it can be seen that the author maintains it seriously and has great ideas. According to the introduction of the project homepage, this project may also add professional knowledge question bank, community contribution system and membership system in the future.

Github address: https://github.com/rymcu.
Demo: https://rymcu.com/.