Shuan Q, Dachang was forced to graduate and recited eight part essay for a month without a window. Fortunately, he got an offer

As Java The programmer , Choose what technology to learn ？ What technology should I learn ？ Search the recruitment website 、 It's very clear to see the job requirements , Own technology and ability , It directly affects the scope of your job choices and whether you can succeed in the interview .

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If you want to enter a large factory , Then we need to Java The core technology stack is well prepared , Specifically, you can learn from the following modules .

Learning modules

Common patterns and tools ： Study Java Technical system , Design patterns , Popular frameworks and components —— Common design patterns , Necessary for coding , Spring5, The latest framework necessary for application ,MyBatis, Playing the essential components of database . Master them at the source level , It's easier for you to get into a big factory than others .

Distributed architecture and microservice architecture ： High concurrency , High availability , Huge amounts of data , Without the knowledge of distributed architecture, we can't play around ; The business of large factories is becoming more and more complex , Service layering , Microservice architecture is the only way to upgrade the architecture .

performance optimization ： Anything out of detail ppt Architects are all hooligans , Qualified architects should be able to plan strategies upward , Downward can solve a linear energy problem .

The underlying knowledge ： From architecture design , Tuning to the application layer , Further understanding of the underlying principles , Solid Java Basic skills can make you walk steadily and long-term .

Project practice ： There is no need to repeat this importance , If you don't have actual combat experience , It's hard to really become an architect .

Learn these skills and abilities , You can not only become a qualified Java The programmer , There is also a solid foundation and project experience required to enter a large factory , This is your confidence and strength to strive for high salary and promising positions .

For most people , It's hard to achieve by individuals , Be sure to use some learning resources and routes , To be the most efficient 、 The result with the highest rate of return .

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One 、JVM piece （2022）

（ contain ：JVM Class loading mechanism ,JVM Memory model , Garbage collection mechanism , Class bytecode implementation mechanism ,JVM Tuning case ,GC Detailed log explanation, etc ）

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Two 、Java Concurrent programming （2022）

（ contain ：java Memory model , Concurrent sets , Thread pool , Blocking queues ,CAS And atomic manipulation , Lock free concurrency framework Disruptor etc. ）

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3、 ... and 、Spring piece （2022）

（ contain ：spring IOC,spring AOP principle ,spring 5,springMVC, Business management , Cyclic dependence ,spring Design mode, etc ）

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Four 、Mysql piece （2022）

（ contain ：SQL Execution principle , The underlying indexing mechanism ,SQL Perform plan analysis ,Mysql Locking mechanism ,Mysql The transaction isolation ,SQL Optimization practice, etc ）

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5、 ... and 、SpringCloud piece （2022）

（ contain ： Service discovery and registration Eureka And Nacos, Service current limiting fuse is degraded Hystrix And Sentinel, Distributed transactions Seata, gateway Gateway etc. ）

6、 ... and 、Dubbo piece （2022）

（ contain ：Dubbo Basics , Architecture design , colony , To configure , Communication protocol ,SPI etc. ）

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7、 ... and 、Redis piece （2022）

（ contain ：Redis Core data structure ,Redis Persistence mechanism and security mechanism , Sentinel and cluster architecture ,Redis Cache penetration , Cache invalidation , Cache avalanche ,Redis Cache design and performance optimization ）

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8、 ... and 、 Distributed article （2022）

（ contain ： The principle of distributed architecture , Cluster architecture principle , Distributed lock , Distributed transactions , Distributed protocol , Distributed configuration , Massive data is divided into databases and tables , Distributed scheduling , etc. ）

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Nine 、 Design patterns （2022）

（ contain ： The singleton pattern , Factory mode , Abstract factory pattern , Builder pattern , Archetypal model , Adapter pattern , Decorator mode , Agent mode, etc 23 Design patterns ）

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Ten 、 Data structure and algorithm （2022）

（ contain ： Red and black trees ,B+ Trees , Greedy Algorithm , Hash divide and conquer , Seven search algorithms , Dynamic programming , Consistency algorithm, etc ）

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11、 ... and 、MQ piece （2022）

（ contain ： Lost message , Message re consumption , The news is out of order , There's a backlog of news , Delay queue , News backtracking consumption , Message refresh mechanism ,MQ Middleware cluster architecture principle, etc ）

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Twelve 、Netty piece （2022）

（ contain ：BIO、NIO And AIO Threading model ,Netty Threading model , Serialization protocol protobuf, Sticking and unpacking ,Netty heartbeat , Direct memory and Netty Zero copy ,WebSocket Agreements, etc ）

13、 ... and 、Zookeeper piece （2022）

（ contain ：ZooKeeper The election mechanism ,ZooKeeper Data model ,ZooKeeper Application scenarios, etc ）

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fourteen 、ElasticSearch piece （2022）

（ contain ：ElasticSearch Data model 、ElasticSearch Distributed architecture 、ElasticSearch Data reading and writing principle and segment merging, etc ）

15、 ... and 、 Network and operating system （2022）

（ contain ： Network protocol ,TCP/IP System structure ,TCP/IP Protocol family , Frequently asked questions , etc. ）

Save everyone's time , The data has been sorted to the network disk