无论做什么事情都不可能做到一蹴而就，很多事情都是水滴石穿。那么作为一名Java程序员当然也要保持不断学习的状态才能在这个领域站稳脚跟。那些工作了一定年限的技术人总有一天会感觉到自己遇到了职业瓶颈，这个时候如果你还是安于现状不去学习钻研的话只会被长江后浪推前浪 把你拍死在沙滩上了。
那么该怎么学习呢 ？学习什么呢？系统化的学习工作所需要的是基础知识，而不是到百度或谷歌查资料解决。这样有助于遇到问题后通过相关知识关联分析，也有助于搭建更合理的技术架构，或改进现有技术架构的不足，让知识形成协同效应。
为了让没有做过研发的运维同事对研发不觉得神秘，能够去分析异常故障深层次原因，我特意总结了一个系统的学习方案，将这些知识体系化地通过一个个的小程序案例传递给大家：Alibaba Dubbo+Zookeeper registration center, Alibaba MyCat sub-database sub-table;
JVM tuning, garbage collector and memory allocation strategy, the role of serial and parallel collectors
Redis caching technology (implementation of session unified management case), introduction of interface joint debugging process;
Tomcat operating mechanism and framework, concurrency optimization, memory optimization;
SpringAOP cornerstone dynamic proxy, interception and weaving principle, familiarity with Spring related source code;
Practical application of concurrent programming in projects;
High-performance NIO framework Netty application;
Nginx offload technology configuration optimization principle, master-slave, dual-master high-availability design;
Distributed single sign-on solution;
Specific application of message queue ActiveMQ, optimistic lock, pessimistic lock, distributed lock;
Interface security solutions, scheduled tasks in a cluster environment;
Distributed file system FastDFS, distributed file system to store contract files;
Docker virtualization technology, integrated with microservices for dynamic expansion and continuous release;
SpringCloud's gateway, configuration, and registry construction;
NoSQL、MongoDB、Cassandra、HttpComponents、FreeMarker、Velocity、SpringBoot、Log4j2；
Performance optimization:
1. JVM tuning
2. Java program performance optimization
3、Tomcat
4、Mysql
5、Spring IOC
6、Spring AOP
7、Spring MVC
8. New features of Spring 5
9、Mybatis
Distributed Architecture:
1. Architecture core service layer technology
2. Architecture key technical facilities
3. Distributed message communication is asynchronous to MQ
4. Distributed cache
5、Restate
6、Memcached
7、MongoDB
8. Data storage
9. High concurrency offloading technology Nginx
10. Distributed solutions
It is not a dream to become a god, what matters is your choice. There is a saying that is very good: people who are better than you are still studying hard, and what reason and qualification do you have not to strive for your own life?
Welcome Java programmers who have worked for one to five years to join Java architecture development: 744677563
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