At the beginning of 2022, people who are ready to change jobs should pay attention to

Recently, the spring moves of Dachang are about to begin , Many people ask me in private letters ： Do a few years Java The engineer , I'm confused now , I want to change jobs, but I don't feel confident enough , I don't know what to do .

As a senior Java Development , I've interviewed a lot of people in recent years . Find out that most interviewers , Although it seems to work hard , But the level of competence they show , But not enough to pass the interview , Or get the expected salary . If the current level of technical support is not enough , Then it's still recommended not to change jobs !

in my opinion , The reason for this is , There are mainly two aspects ：

First of all ,“ Know what it is and don't know why it is ”. I've done technology for a few years , Developed some business applications , But I haven't thought about the logic behind these technology choices . therefore , It's hard for me to define their future growth potential , I will not trust to give them tasks with a certain depth .

second , Fragmentation of knowledge , No system . in fact , When the interviewer can't be complete 、 When you clearly describe the system you've developed or the technology you're using , The interviewer will wonder if he has the ability to solve complex problems 、 The ability to design complex systems .

therefore , If you just work hard , Or too much of an implementation detail , I haven't looked up at these technologies , So in preparation for the interview , It's necessary to sort it out Java Knowledge system , Only in this way can we win the satisfied Offer.

here , Share one for free that helped me a lot 《 Inside Ali Java Interview notes 》, It's said to be an Ali 10 The big man in summed up

Not much to say , Direct delivery of dry goods （ The presentation part takes Ali's interview outline as an example ）

Show some screenshots , There is a need for a full version pdf Document , You can get it for free at the end of the article .

1、 Underlying source code and design patterns ：

Detailed introduction of the source code used in the classic design ideas , See how Daniel writes code , Improve the technical aesthetics 、 Improve core competitiveness .

Help you to find the entry point of source code analysis , A great sublimation in thought . Know what it is , And know why . Turn knowledge into your own .

2、 Software skills 36 Actual combat skills ：

Design pattern is the experience and method to solve common problems , It's the designer's sunflower classic , this 36 A design pattern combat case also needs to be understood .

3、 Distributed microservices enterprise class solutions ：

Distributed 、 Microservice is one of the hottest topics in Internet architecture technology . In the interview process of Internet enterprises , The interviewer will basically ask questions about the distribution of microservices . As a developer , A programmer with technical dreams, distributed microservice architecture is the mainstream technology that must be understood now .

4、 Distributed microservices and high concurrency ：

Internet age , How to meet the challenge of high concurrent traffic . And as a technology developer , How to deal with the skill crisis brought by technological change . Based on the traditional architecture to the evolution of distributed architecture brought about by the technical changes in-depth explanation .

In the depth and breadth of technology has been improved by leaps . What the Internet industry needs T Type talent

5、 From requirements to real project architecture design

Gupao home APP Microservice project source code

Distributed bucket design of Gupao distribution Mall

Using cloud server to build a real development and deployment environment , Student participation , Develop a project involving thousands of people . Introduce big data related content into the actual combat of the project , You can learn it after you finish

1、 Have the ability to independently develop and build distributed architecture system

2、 After learning, it is equivalent to having 2 More than years of Internet development experience .

6、 Team collaboration management tools

Whether it's just the beginning of Xiaobai , Or the senior development of talents 、 framework , You all need to start here

1、 Master automation deployment skills ;

2、 When you come, Xiaobai can improve quickly

3、 For senior developers, you can add points

7、 Uncover the secrets of massive data performance tuning

Fully understand the concept of performance optimization , Understand the underlying mechanism , Help scientific tuning Practical cases make you no longer just a spectator

8、 Data structure and algorithm

The position of data structure and algorithm is self-evident for a programmer .

Master data structure and algorithm , No matter for reading the framework source code , Or to understand the design idea behind it , Are practical .

The knowledge points in the text have been sorted into PDF Document. , contain ：

《Java Core interview questions 》 common 280 page

《Java Intermediate and advanced knowledge points manual 》524 page

Just click on the business card below , Scan the code and add a little assistant to get the information for free ~

Share with like Java, Like programming , Programmers who dream of becoming architects , I hope I can help you !