preface

As requested by the vast number of fans, too much information on the Internet is not detailed and comprehensive enough, so I spent a lot of thought to collect it, but finally found it is not comprehensive, so this article appeared. The author searched GitHub for a long time and finally found three most complete Java learning notes, with a total of 946 pages!

Knowledge covered:

Interview questions: Java Basics, High Concurrency, Multi-threading, Distributed, Design Mode, Spring bucket, Java, MyBatis, ZooKeeper, Dubbo, Elasticsearch, Memcached, MongoDB, Redis, MySQL, RabbitMQ, Kafk A, Linux, Netty, Tomcat and other knowledge points in detail and interview topic.

Because the entire document is comprehensive and contains a lot of content, space does not allow, the following is shown in screenshots. If there is a need to obtain information documents friends can pay attention to the end of the public number to obtain.

Detailed display of contents

Detailed notes and mind maps for JVM and performance optimization

  • JVM memory region
  • Garbage collection and memory allocation policies
  • The JVM’s execution subsystem
  • Learn more about performance tuning
  • JVM class loading mechanism
  • JAVA four reference types
  • .

946 pages of fairy documents, even ali P8 interviewers said too detailed, understand these direct P7 level

946 pages of fairy documents, even ali P8 interviewers said too detailed, understand these direct P7 level

Multithreading concurrent study notes

  • JAVA Concurrent Knowledge base
  • JAVA thread implementation/creation
  • Four thread pools
  • Thread life cycle (state)
  • There are four ways to terminate a thread
  • To sleep is different from to wait
  • Start is different from run
  • JAVA background thread
  • JAVA lock
  • Basic threading methods
  • Thread context switch
  • Synchronous locks and deadlocks
  • Thread Pool Principle
  • JAVA blocking queue principle
  • CyclicBarrier, CountDownLatch, Semaphore
  • Thread scheduling used in Java
  • Process scheduling algorithm
  • .

946 pages of fairy documents, even ali P8 interviewers said too detailed, understand these direct P7 level

Microservices learning Notes

  • Service Registration Discovery
  • API gateway
  • Configuration center
  • Event scheduling (Kafka)
  • Service Tracking (starter-sleUTH)
  • Service fuse (Hystrix)
  • API management
  • The application of micro service in enterprise
  • .

946 pages of fairy documents, even ali P8 interviewers said too detailed, understand these direct P7 level

Zookeeper Learning Notes

  • Zookeeper concepts
  • Leader
  • Follower
  • Observer
  • ZAB agreement
  • Voting mechanism
  • How Zookeeper works (Atomic Broadcast)
  • Znode has four types of directory nodes

946 pages of fairy documents, even ali P8 interviewers said too detailed, understand these direct P7 level

Spring source notes and mind maps

  • Spring characteristics
  • Spring Core Components
  • Spring Common Modules
  • Spring is mainly package
  • Spring Spring
  • Spring third-party integration
  • Principle of the Spring IOC
  • Spring APO principle
  • Spring MVC principles
  • JPA principle
  • Mybatis cache
  • The Spring transaction
  • .

946 pages of fairy documents, even ali P8 interviewers said too detailed, understand these direct P7 level

946 pages of fairy documents, even ali P8 interviewers said too detailed, understand these direct P7 level

Kafka learning notes and mind mapping

946 pages of fairy documents, even ali P8 interviewers said too detailed, understand these direct P7 level

946 pages of fairy documents, even ali P8 interviewers said too detailed, understand these direct P7 level

Nginx learning Notes

946 pages of fairy documents, even ali P8 interviewers said too detailed, understand these direct P7 level

946 pages of fairy documents, even ali P8 interviewers said too detailed, understand these direct P7 level

RabbitMQ study notes

946 pages of fairy documents, even ali P8 interviewers said too detailed, understand these direct P7 level

Design patterns

946 pages of fairy documents, even ali P8 interviewers said too detailed, understand these direct P7 level

The database

946 pages of fairy documents, even ali P8 interviewers said too detailed, understand these direct P7 level

Java algorithm

946 pages of fairy documents, even ali P8 interviewers said too detailed, understand these direct P7 level

946 pages of fairy documents, even ali P8 interviewers said too detailed, understand these direct P7 level

The data structure

946 pages of fairy documents, even ali P8 interviewers said too detailed, understand these direct P7 level

946 pages of fairy documents, even ali P8 interviewers said too detailed, understand these direct P7 level

Distributed learning notes

946 pages of fairy documents, even ali P8 interviewers said too detailed, understand these direct P7 level

946 pages of fairy documents, even ali P8 interviewers said too detailed, understand these direct P7 level

Highly available architecture

946 pages of fairy documents, even ali P8 interviewers said too detailed, understand these direct P7 level

Redis study notes

946 pages of fairy documents, even ali P8 interviewers said too detailed, understand these direct P7 level

946 pages of fairy documents, even ali P8 interviewers said too detailed, understand these direct P7 level

Depots table

946 pages of fairy documents, even ali P8 interviewers said too detailed, understand these direct P7 level

946 pages of fairy documents, even ali P8 interviewers said too detailed, understand these direct P7 level

MyBatis source

946 pages of fairy documents, even ali P8 interviewers said too detailed, understand these direct P7 level

946 pages of fairy documents, even ali P8 interviewers said too detailed, understand these direct P7 level

Dubbo study notes

946 pages of fairy documents, even ali P8 interviewers said too detailed, understand these direct P7 level

946 pages of fairy documents, even ali P8 interviewers said too detailed, understand these direct P7 level

Elasticsearch learning notes

946 pages of fairy documents, even ali P8 interviewers said too detailed, understand these direct P7 level

946 pages of fairy documents, even ali P8 interviewers said too detailed, understand these direct P7 level

Memcached Study notes

946 pages of fairy documents, even ali P8 interviewers said too detailed, understand these direct P7 level

946 pages of fairy documents, even ali P8 interviewers said too detailed, understand these direct P7 level

Linux Learning Notes

946 pages of fairy documents, even ali P8 interviewers said too detailed, understand these direct P7 level

946 pages of fairy documents, even ali P8 interviewers said too detailed, understand these direct P7 level

And SpringCloud, Springboot, and project combat… Because the space is too long to share and display, the 946 pages of study notes are required, please follow the public account below to obtain