京东后端开发岗(外卖商家端)
社招全职软件开发岗地点:北京状态:招聘
任职要求
1. Java 相关工作扎实的计算机专业基本功,强大的写码能力; 2. 了解 Java 及非精算面向对象设计开发,对部分 Java 技术有深入研究,研究过优秀开源软件的源码并有心得者优先; 3. 熟悉常见设计模式,精通 Spring 框架、熟练使用至少一种 ORM 框架如 Hibernate、MyBatis; 4. 精通 MySQL 应用开发,熟悉数据库原理和常用性能优化技术,以及 NoSQL,Queue 的原理、使用场景以及限制; 5. 研究过 Http 协议、缓存、Jvm 调优、RPC 调用框架等,并且有相关实践经验; 6. 有较强的逻辑/概率思维能力,善于分析、归纳、解决问题。 符合京东价值观:客户为先、创新、拼搏、担当、感恩、诚信。
工作职责
1. 负责秒送外卖商家端相关后端系统的开发; 2.参与产品需求分析、设计,负责服务端系统架构设计、框架搭建与系统优化。
包括英文材料
Java+
https://www.youtube.com/watch?v=eIrMbAQSU34
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.
面向对象+
https://liaoxuefeng.com/books/java/oop/index.html
面向对象编程,英文是Object-Oriented Programming,简称OOP。
https://liaoxuefeng.com/books/python/oop/index.html
面向对象编程——Object Oriented Programming,简称OOP,是一种程序设计思想。
https://www.youtube.com/watch?v=SiBw7os-_zI
Learn the basics of object-oriented programming all in one video.
设计模式+
https://liaoxuefeng.com/books/java/design-patterns/index.html
设计模式,即Design Patterns,是指在软件设计中,被反复使用的一种代码设计经验。使用设计模式的目的是为了可重用代码,提高代码的可扩展性和可维护性。
[英文] Design Patterns
https://refactoring.guru/design-patterns
Design patterns are typical solutions to common problems in software design. Each pattern is like a blueprint that you can customize to solve a particular design problem in your code.
https://www.youtube.com/watch?v=NU_1StN5Tkk
Design Patterns tutorial explained in simple words using real-world examples.
Spring+
https://liaoxuefeng.com/books/java/spring/index.html
Spring是一个支持快速开发Java EE应用程序的框架。它提供了一系列底层容器和基础设施,并可以和大量常用的开源框架无缝集成,可以说是开发Java EE应用程序的必备。
https://spring.io/guides/gs/rest-service
https://spring.io/quickstart
Level up your Java code and explore what Spring can do for you.
Hibernate+
https://hibernate.org/orm/documentation/getting-started/
The following guides are meant to help you getting started with Hibernate ORM in an application.
https://www.baeldung.com/learn-jpa-hibernate
Hibernate is a standard implementation of the JPA specification, with a few additional features that are specific to Hibernate.
https://www.youtube.com/watch?v=xHminZ9Dxm4
Ever looked for a comprehensive tutorial to Hibernate & JPA that is fun and entertaining at the same time?
MyBatis+
https://mybatis.org/mybatis-3/getting-started.html
https://www.baeldung.com/mybatis
MyBatis is an open source persistence framework which simplifies the implementation of database access in Java applications.
MySQL+
https://juejin.cn/post/7190306988939542585
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。
[英文] MySQL Tutorial
https://www.mysqltutorial.org/
your go-to resource for mastering MySQL in a fast, easy, and enjoyable way.
https://www.youtube.com/watch?v=5OdVJbNCSso
MySQL SQL tutorial for beginners
https://www.youtube.com/watch?v=7S_tz1z_5bA
This beginner-friendly course teaches you SQL from scratch.
NoSQL+
https://nosql-database.org/
Everything about NoSQL Systems – Types, Benefits, and Real-World Uses
https://piaosanlang.gitbooks.io/mongodb/content/section1.1.html
NoSQL(NoSQL = Not Only SQL ),即"不仅仅是SQL",指的是非关系型的数据库。是对不同于传统的关系型数据库管理系统的统称。
https://www.youtube.com/watch?v=0buKQHokLK8
NoSQL databases can operate in multiple modes: as key-value store, document store or wide column store.
缓存+
https://hackernoon.com/the-system-design-cheat-sheet-cache
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.
https://www.youtube.com/watch?v=bP4BeUjNkXc
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.
https://www.youtube.com/watch?v=dGAgxozNWFE
RPC+
https://javaguide.cn/distributed-system/rpc/rpc-intro.html
为什么要 RPC ? 因为,两个不同的服务器上的服务提供的方法不在一个内存空间,所以,需要通过网络编程才能传递方法调用所需要的参数。并且,方法调用的结果也需要通过网络编程来接收。
https://www.youtube.com/watch?v=S2osKiqQG9s
This video is part of an 8-lecture series on distributed systems, given as part of the undergraduate computer science course at the University of Cambridge.
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