Community

Execute

java -jar target/community-0.0.1-SNAPSHOT.jar

address: http://localhost:8887/

Technology stack

Technology	Function	Link
Spring Boot	Spring platform	https://spring.io/projects/spring-boot
Mysql	Database	https://spring.io/guides/gs/accessing-data-mysql/
MyBatis	An open source persistence framework which simplifies the implementation of database access in Java applications.	https://mybatis.org/mybatis-3/index.html
Apache Shiro	Java security framework that performs authentication, authorization, cryptography, and session management.	https://shiro.apache.org/spring-boot.html
Bootstrap	HTML, CSS, and JS framework.	https://v3.bootcss.com/getting-started/
Thymeleaf	Java template engine for processing and creating HTML, XML, JavaScript, CSS and text.	https://www.thymeleaf.org/
thymeleaf-extras-shiro	A Thymeleaf dialect for Apache Shiro tags.	https://github.com/theborakompanioni/thymeleaf-extras-shiro
Lombok	Java library tool, that automatically plugs into your editor and build tools (e.g. getter and setter)	https://www.projectlombok.org
Apache Commons Lang	A package of Java utility classes, extending the functionality of the Java API	https://commons.apache.org/proper/commons-lang/
MyBatis Generator	MyBatis Generator (MBG) is a code generator for MyBatis MyBatis, generate code for all versions of MyBatis.	http://mybatis.org/generator/
MyBatisCodeHelperPro	Intellij Plugin for Mybatis, Type safe sql support, plugin can recognize mybatis dynamic sql	https://plugins.jetbrains.com/plugin/9837-mybatiscodehelperpro
PageHelper	MyBatis Pagination	https://github.com/pagehelper/Mybatis-PageHelper
Markdown plugin	Markdown editor	http://editor.md.ipandao.com/en.html
ELK	ElasticSearch + Logstash + Kibana	https://www.elastic.co/what-is/elk-stack
RabbitMq	An open-source message-broker software	https://www.rabbitmq.com/

Extended materials

Spring
Spring MVC
Spring Web
Spring Boot Embedded Database Support
Spring Dev Tool
Thymeleaf
Live Reload
UFfile SDK
Git
Flyway
ctotree
Postman
H2

Notes

1. the import order of css and js in HTML
2. when using mybatis, still set default value during service layer (error: insert null when setting default value)
3. Html file: image path; class may be covered
4. Shiro: not need to write "/logout"; the subclass of AuthenticationException; the content of SimpleAuthenticationInfo (UserRealm): getPrincipal()
5. Pagination: page and size boundary
6. MyBatis Generator: config; must same property type
7. Error Handling: custom ErrorController (Customized Exception). use regular Spring MVC features such as @ExceptionHandler methods and @ControllerAdvice. The ErrorController(CustomizedExceptionHandler) then picks up any unhandled exceptions.
8. Logging: specify log setting in application.properties. https://docs.spring.io/spring-boot/docs/current/reference/html/features.html#features.logging
9. scheduling task: https://spring.io/guides/gs/scheduling-tasks/ update rate: (fixedRate = 1000 * 60 * 60 * 3) priority = postCount * 5 + commentCount Top N
10. ELK: search posts, which is faster than mysql
11. RabbitMq: used for message queue

Questions

1. file upload (locally), ucloud sdk
2. search + sort, since search is in the navigation

generate mybatis mapper file

mvn -Dmybatis.generator.overwrite=true mybatis-generator:generate