Preface
At the request of the majority of fans, too much information on the Internet was not detailed enough and not comprehensive enough. It took a lot of effort to collect it. In the end, it was not comprehensive. So this article appeared. After searching on GitHub for a long time, I finally found the three most comprehensive Java learning Notes, the total number of pages is 946!
Covered knowledge:
Interview must ask: Java basics, high concurrency, multithreading, distributed, design patterns, Spring family bucket, Java, MyBatis, ZooKeeper, Dubbo, Elasticsearch, Memcached, MongoDB, Redis, MySQL, RabbitMQ, Kafka, Linux, Netty, Tomcat and other knowledge points are explained in detail and interview questions.
Since the entire document is relatively comprehensive, the content is relatively large, and the length is not allowed, the following is a screenshot. If you need to get information, friends can follow + like, click here to get it for free!
Detailed content display
JVM and performance optimization detailed notes and mind maps
- JVM memory area
- Garbage collection and memory allocation strategy
- JVM execution subsystem
- In-depth understanding of performance optimization
- JVM class loading mechanism
- JAVA four reference types
- ....
Multi-threaded concurrent study notes
- JAVA Concurrent Knowledge Base
- JAVA thread implementation / creation method
- 4 types of thread pools
- Thread life cycle (state)
- 4 ways to terminate threads
- The difference between sleep and wait
- The difference between start and run
- JAVA background thread
- JAVA lock
- Basic thread method
- Thread context switch
- Synchronization and deadlock
- Principle of Thread Pool
- JAVA blocking queue principle
- Usage of CyclicBarrier, CountDownLatch, Semaphore
- Thread scheduling used in Java
- Process scheduling algorithm
- .......
Microservice study notes
- Service registration discovery
- API gateway
- Configuration Center
- Event scheduling (kafka)
- Service tracking (starter-sleuth)
- Service Fuse (Hystrix)
- API management
- Application of microservices in enterprises
- .......
Zookeeper study notes
- Zookeeper concept
- Leader
- Follower
- Observer
- ZAB agreement
- Voting mechanism
- Working principle of Zookeeper (atomic broadcast)
- Znode has four types of directory nodes
Spring source notes and mind maps
- Spring features
- Spring core components
- Spring common modules
- Spring main package
- Spring common annotations
- Spring third-party integration
- Spring IOC principle
- Spring APO principle
- Spring MVC principle
- JPA principle
- Mybatis cache
- Spring transaction
- .......
Kafka study notes and mind map
Since the entire document is relatively comprehensive, the content is relatively large, and the length is not allowed, the following is a screenshot. If you need to get information, friends can follow + like, click here to get it for free!
Nginx study notes
RabbitMQ study notes
Design Patterns
database
Java algorithm
data structure
Distributed study notes
Highly available architecture
Redis study notes
Since the entire document is relatively comprehensive, the content is relatively large, and the length is not allowed, the following is a screenshot. If you need to get information, friends can follow + like, click here to get it for free!
Sub-database and sub-table
MyBatis source code
Dubbo study notes
Elasticsearch study notes
Memcached study notes
Linux study notes
There are also SpringCloud, Springboot, and actual project combat, etc... Due to the length of the space, it is inconvenient to share and display, and you need these 946 pages of study notes to get them for free!