Interviewer: programmer, please tell me who leaked the company interview questions to you?

Antecedents feed ：

interviewer ： Hello ！ Please introduce yourself first ！

The programmer ：balabalabala...

Foreplay goes first ....

interviewer ： Let's first introduce SpringCloud Core components and their functions

The programmer ：SpringCloud By 5 Core components ... in addition ,SpringCloud It's like this ↓

interviewer （ He looked down at his problems in doubt ）： Um. , Pretty good , The workflow is out there . Then introduce springcloud heartbeat

The programmer ： When a server starts , It will be IP Address and other information registered to Eureka... however Eureka Yes .... Etc ...

interviewer （ Frown tightly , I looked at the paper in my hand ）： forehead ~ shortcoming ？ Young man , How did you get the interview questions from our company ？

The programmer ： What do you mean ？

The real hot topic of big factory , Do you want it? ？

I sorted out the Alibaba ant gold clothes in recent March 、 tencent 、 Baidu 、 Safety 、 Pinduoduo, etc , It's all hot , It's not just a question , There is also a complete analysis of the answer .

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Beijing - Baidu ,java intermediate

1. BeanFactory and ApplicationContext What's the difference?
2. Spring Bean Life cycle of
3. Spring IOC How to achieve
4. say something Spring AOP
5. Spring AOP Realization principle
6. A dynamic proxy （cglib And JDK）
7. Spring Transaction implementation
8. Spring The underlying principle of transaction
9. How to customize annotation to implement function
10. Spring MVC Operation process
11. Spring MVC Start process
12. Spring The principle of single instance implementation
13. Spring What design patterns are used in the framework
14. Why choose Netty
15. Talk about the business ,Netty Usage scenarios of
16. Native NIO stay JDK 1.7 Version exists epoll bug
17. TCP Sticky package / The solution to unpacking
18. ......

Examples of answers ：

Shenzhen - Safety ,java intermediate

1. Introduce the main items on your resume , Draw a frame , Talking about process
2. Ask questions about the skills on your resume
3. redis Various application scenarios
4. redis Persistence mechanism
5. mysql tuning
6. Do you understand Docker,Docker What's the difference between virtual machine and virtual machine ？
7. say something rabbitmq Structure
8. rabbitmq The relationship between queues and consumers ？
9. rabbitmq Type of exchanger
10. Where does the project use kafka,kafka characteristic ？
11. rabbitmq、RocketMq、kafka contrast
12. Introduce springcloud Core components and their functions , as well as springcloud Workflow
13. Introduce springcloud heartbeat , And how the consumer finds the server （Ribbon）？
14. eureka The shortcomings of
15. eureka Caching mechanisms ？
16. rpc and http The difference between , Use scenarios ？
17. How distributed transactions maintain consistency ？
18. When to use distributed development ？
19. jvm Memory model , The characteristics of each part ？
20. ......
21. Write a few jvm Optimize configuration parameters
22. With what kind of GC Mechanism ？
23. spring relevant ...
24. Data structure correlation ...
25. Concurrent correlation ...
26. Thread pool related ...
27. Database correlation ...

Examples of answers ：

Shenzhen - Yinsheng pays ,java intermediate

1. say something springcloud How it works
2. What components are used to send requests ？
3. The heartbeat of the registry is a few seconds ？
4. How consumers discover service providers ？
5. Multiple consumers call the same interface ,eruka What is the default allocation method ？
6. Talk about common springboot annotation , And its implementation ？
7. spring What is the transaction annotation for ？ When things roll back ？
8. say something spring The level of communication and isolation of things ？
9. mysql What's in your engine ？ Their differences ？
10. innodb How to achieve mysql The business of ？
11. mysql Let's talk about ？
12. say something b+ The principle of trees ？
13. Let you design an index , How would you design ？
14. And asked git and svn The difference between ？
15. git Some basic principles and processes of command ？

Examples of answers ：

Hangzhou - The ant gold dress ,java senior

1. jdk1.7 To jdk1.8 Map What has changed ( Bottom )?
2. ConcurrentHashMap
3. What's the difference between parallelism and concurrency ？
4. jdk1.7 To jdk1.8 java What happened to the virtual machine ?
5. If you are asked to design a middleware yourself , How would you design it ?
6. What is Middleware ？
7. ThreadLock Have you used it , Talk about its function ?
8. Hashcode（） and equals（） and == difference ?
9. mysql In the database , When the index is set but cannot be used ?
10. mysql Will optimization ,mycat sub-treasury , Vertical sub database , Horizontal sub database ?
11. Distributed transaction solutions ?
12. sql Will statement optimization , Say what you know ?
13. mysql Have you known about the storage engine of ?
14. Red black tree principle ？

Examples of answers ：

Shenzhen - tencent ,java senior

1. Choose one of the resume projects , Talk about the big challenges you've faced in this ？ And your ideas for solving problems ？
2. A piece of code has to execute multiple redis command , How to guarantee atomicity without locking ？
3. Talk about data structures , For example, a binary tree 、 Red and black trees ？
4. say something B-tree、B+tree The differences and use scenarios ？
5. mysql Which version of which storage engine index is used B+tree, Why not use the red black tree ？
6. Talk about the differences of several common message middleware ？
7. rabbitmq How to ensure the reliability of the message ？
8. springcloud How service discovery works ？
9. introduce springcloud Components ？springcloud The registration of ⼼ except eureka What else can I use ？
10. There are several current limiting methods for microservices ？
11. ......

Examples of answers ：

Shanghai - A lot of spelling ,java senior

1. Three elements of concurrent programming ？
2. What are the ways to achieve visibility ？
3. The value of multithreading ？
4. How to create threads ？
5. Comparison of three ways to create threads ？
6. State flow diagram of thread
7. Java Threads have five basic states
8. What is a thread pool ？ What are the ways to create ？
9. Creation of four thread pools
10. Advantages of thread pool ？
11. What are the common concurrent tool classes ？
12. CyclicBarrier and CountDownLatch The difference between
13. ......

Examples of answers ：

And all the interview questions of big factories collected temporarily pdf↓

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