携程Java开发工程师（交易管理组）(MJ027861)
社招全职1-3年住宿业务开发地点：北京状态：招聘
任职要求
1.1-3年Java开发经验，扎实的Java基础，熟悉集合、多线程、IO、网络编程等； 2.熟练使用Spring Boot、MyBatis等主流框架； 3.熟悉MySQL数据库设计和优化，了解事务隔离级别、锁机制等； 4.熟悉Redis等缓存技术，了解分布式锁、秒杀场景解决方案； 5.了解消息队列（RabbitMQ/Kafka/RocketMQ）在异步处理中的应用； 6.熟悉RESTful API设计，有支付接口（如微信/支付宝）对接经验者优先； 7.了解分布式系统开发（Dubbo/Zookeeper/Nacos），熟悉CAP理论、分布式事务（Seata/TCC等）者加分。 加分项： 对订单状态机、支付流程、结算对账等业务逻辑有理解； 有电商、金融、ERP等涉及资金流转的系统开发经验者优先； 具备一定的抗压能力，能快速定位和解决线上问题。
工作职责
1.负责订单、支付、结算等核心模块的设计、开发与优化； 2.参与订单交易链路开发，包括订单生成、状态流转、支付对接、对账结算等功能实现； 3.处理高并发场景下的数据一致性、幂等性、事务管理等技术问题； 4.协同财务、风控等团队，确保资金流转准确性和系统安全性； 5.分析并解决线上问题，优化系统性能，提升稳定性和可扩展性； 6.编写技术文档，参与代码评审，遵循团队开发规范。
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.
多线程+
https://liaoxuefeng.com/books/java/threading/basic/index.html
和单线程相比，多线程编程的特点在于：多线程经常需要读写共享数据，并且需要同步。
https://www.youtube.com/watch?v=_uQgGS_VIXM&list=PLsc-VaxfZl4do3Etp_xQ0aQBoC-x5BIgJ
https://www.youtube.com/watch?v=IEEhzQoKtQU
https://www.youtube.com/watch?v=mTGdtC9f4EU&list=PLL8woMHwr36EDxjUoCzboZjedsnhLP1j4
https://www.youtube.com/watch?v=TPVH_coGAQs&list=PLk6CEY9XxSIAeK-EAh3hB4fgNvYkYmghp
https://www.youtube.com/watch?v=xPqnoB2hjjA
This video is an introduction to multithreading in modern C++.
https://www.youtube.com/watch?v=YKBwKy5PrpQ
Rust threading is easy to implement and improves the efficiency of your applications on multi-core systems!
网络编程+
https://www.youtube.com/watch?v=2HrYIl6GpYg
I will make a simple HTTP web server with the C Programming Language.
https://www.youtube.com/watch?v=8z6okCgdREo
This tutorial is for Gophers who have written a command line or an API application, but have little to no experience in lower-level concepts like reading and writing to sockets, working with channels, and managing multiple goroutines.
https://www.youtube.com/watch?v=bdIiTxtMaKA&list=PL9IEJIKnBJjH_zM5LnovnoaKlXML5qh17
https://www.youtube.com/watch?v=bzja9fQWzdA
Implement the ubiquitous TCP protocol that underlies much of the traffic on the internet!
[英文] 📺Network Programming with Python Course (build a port scanner, mailing client, chat room, DDOS)
https://www.youtube.com/watch?v=FGdiSJakIS4
Learn network programming in Python by building four projects. You will learn to build a mailing client, a DDOS script, a port scanner, and a TCP Chat Room.
https://www.youtube.com/watch?v=gntyAFoZp-E
https://www.youtube.com/watch?v=JiuouCJQzSQ
Explore the fundamentals of networking in Rust by building a simple TCP server.
https://www.youtube.com/watch?v=JRTLSxGf_6w
https://www.youtube.com/watch?v=sFizpxHkIlI
In this video we'll cover SOCKET PROGRAMMING in JAVA.
https://www.youtube.com/watch?v=sXW_sNGvqcU
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.
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.
Redis+
[英文] Developer Hub
https://redis.io/dev/
Get all the tutorials, learning paths, and more you need to start building—fast.
https://www.runoob.com/redis/redis-tutorial.html
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。
https://www.youtube.com/watch?v=jgpVdJB2sKQ
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.
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
消息队列+
https://www.youtube.com/watch?v=xErwDaOc-Gs
RabbitMQ+
[英文] RabbitMQ Tutorials
https://www.rabbitmq.com/tutorials
These tutorials cover the basics of creating messaging applications using RabbitMQ.
https://www.youtube.com/watch?v=bfVddTJNiAw
RabbitMQ is a powerful message broker that can help you create resilient and scalable applications.
Kafka+
https://developer.confluent.io/what-is-apache-kafka/
https://www.youtube.com/watch?v=CU44hKLMg7k
https://www.youtube.com/watch?v=j4bqyAMMb7o&list=PLa7VYi0yPIH0KbnJQcMv5N9iW8HkZHztH
In this Apache Kafka fundamentals course, we introduce you to the basic Apache Kafka elements and APIs, as well as the broader Kafka ecosystem.
RocketMQ+
https://www.baeldung.com/apache-rocketmq-spring-boot
In this tutorial, we’ll create a message producer and consumer using Spring Boot and Apache RocketMQ, an open-source distributed messaging and streaming data platform.
分布式系统+
https://www.distributedsystemscourse.com/
The home page of a free online class in distributed systems.
https://www.youtube.com/watch?v=7VbL89mKK3M&list=PLOE1GTZ5ouRPbpTnrZ3Wqjamfwn_Q5Y9A
Dubbo+
https://dubbo.apache.org/en/overview/mannual/java-sdk/tasks/
Nacos+
https://nacos.io/docs/latest/overview/
Nacos 是 Dynamic Naming and Configuration Service 的首字母简称，一个易于构建 AI Agent 应用的动态服务发现、配置管理和AI智能体管理平台。
CAP+
https://www.hellointerview.com/learn/system-design/core-concepts/cap-theorem
Master the fundamental tradeoffs between consistency and availability in distributed systems.
https://www.ibm.com/think/topics/cap-theorem
The CAP theorem says that a distributed system can deliver only two of three desired characteristics:
consistency, availability and partition tolerance (the ‘C,’ ‘A’ and ‘P’ in CAP).
https://www.youtube.com/watch?v=BHqjEjzAicA
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