Preface
As a programmer in the direction of Java, it is very important to lay a solid foundation. Nowadays, the interviews of major companies are becoming more and more stringent for the basic knowledge of programmers. Although the technology is updated faster, the foundation is solid. To understand each point of knowledge and technology more deeply.
Regarding how Java programmers build the foundation, most of the novices are quite confused! However, today’s exciting thing is that Alibaba’s first "Java Advanced Essentials Collection" is complete in content, allowing readers to clearly understand the structure of the Java system, from basic to advanced to actual combat, with one click! This "Java Advanced Essentials Book" includes six core knowledge points, mainly related to:
- Core 1: Concurrent programming technology must be asked by big companies
- Core 2: In-depth analysis of JVM
- Core 3: Network programming and efficient IO (Netty)
- Core 4: Mysql advanced in depth
- Core Five: Deep into the bottom of Tomcat
- Core 6: Small actual combat project (Imitated Xiaomi Mall)
Core 1: Concurrent programming technology must be asked by big companies
1. Introduction to Concurrent Programming Fundamentals
- Getting started with thread basics
- Interpretation of the rotation mechanism of the number of CPU cores, threads, and time slices
- How synchronized, volatile, ThreadLocal realize thread sharing
- How wait/notify/notifyAI realizes the cooperation between threads
2. Concurrent tools combat
3. Operate CAS on the shoulders of giants
- Principle of CAS
- Three problems in CAS and actual combat of atomic operation scenarios
4. Understand the explicit lock at the first listening
- Built-in lock and display lock
- Fair lock and unfair lock
- Reentrant
- In-depth interpretation of AQS source code
5. Interpretation of concurrent container source code
6. In-depth analysis of the internal mechanism of the thread pool
7. Performance optimization in practice
8. Advanced features
9.OS Kernel kernel interpretation and OpenJDK source code interpretation
Core 2: In-depth analysis of JVM
1. Depth analysis of Java memory area
2. Garbage collector and memory allocation strategy
3. JVM execution subsystem
4. Advanced
- JDK comes with tools to parse jps/jtat/jinfo, etc.
- Actual combat of memory leaks in MAT troubleshooting projects
- Ali open source Java diagnostic tool Arthas
- Compiler optimization technology
5.JVM actual combat
- The actual case of high CPU usage
- Cases of high memory usage
- 15 ways to write efficient and elegant Java programs
6. JVM underlying technology
- GC estimation and optimization for wells with high flow rate
- JHSDB tool perspective Lambda underlying implementation
- JVM (HotSpot) core source code interpretation
- JVM core module (GC algorithm) handwriting actual combat
Core 3: Network programming and efficient IO
1. Getting started with network basics
- HTTP/TCP/UDP network protocol detailed explanation
- Native JDK network programming: BIO, NIO
- Netty application quick start
2. Netty advanced and actual combat
- Server push technology in action
- WebSocket communication combat
- Handwritten communication framework in action
- Netty sticky package / half package problem solving actual combat
3. Source code interpretation module
- Source code analysis of BIO and NIO
- Netty source code in-depth analysis
4. The underlying principles and source code of the network
Core 4: Mysql advanced in depth
1.Mysq|Storage Engine Selection and Precautions
2. Interpretation of Mysq|'s shared locks and exclusive locks
3.MySq|Partition
4. Mysq transaction and isolation level
5.30 minutes to master the execution plan
6. Interpretation of BTree and B+ Tree index
7.Sq|Slow query configuration and analysis
8.Sq|Optimization strategy and actual combat
Core Five: Deep into the bottom of Tomcat
1.Tomcat basics
- Understand the Tomcat startup process
- Tomcat configuration details
2.Tomcat architecture
- HTTP request analysis and processing flow
- Understanding of Tomcat core components
- Tomcat class loading mechanism and source code analysis
- Source code analysis of asynchronous servlet in Tomcat
3.Tomcat thread model
- Tomcat BIO implementation source code interpretation
- Tomcat NIO implementation source code interpretation
- Tomcat cluster and session replication scheme
4. Tomcat performance tuning
- Connector optimization
- JVM parameter optimization
5.Tomcat cluster
6.Tomcat security
Core 6: Small actual combat project (Imitated Xiaomi Mall)
It uses the popular spring+springMVC+mybatis framework combination development of the e-commerce system, and uses the mysql database commonly used in general e-commerce systems for the database. This small practical project allows Xiaobai or fresh graduates to cope with the interview without much problem. The specific content of this small project is as follows:
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At last
Many novice programmers just came out to work. If you have a relatively basic programming language, you will be more successful in your work and study, and more importantly, the basic programming language is the driving force for learning in the future, regardless of whether you learn other programming languages. Good will be more confident. At the beginning, the friends around me changed careers because they were updating too fast in technology, and my foundation was not good. In the end, I couldn't keep learning and could only give up.
Finally, I just want to say that the basics of programming are an important factor in determining how far programmers can go.
The above advanced Java content has a complete pdf that can be shared. Friends who need this Java advanced essential book can get it for free with a lot of support.