Java is known as the evergreen tree of development languages in the software development industry, ranking first in the development language rankings. In 2017, the Java talent gap was 450,000. IDC statistics show that among all talent development needs, the demand for Java engineers reaches 60%-70% of the total demand. The characteristics of wide application and wide employment are also the enduring core of Java development language.
What are the most popular content in the Java field now? Spring Data, Spring Boot, VUE, Spring Security security framework and other technologies, Dubbo, Solr framework, and message frameworks such as Kafka, NoSQL database MongoDB and memory database Redis, Nginx load balancing , stress testing, performance tuning and other technologies.
So what should Java learn? Java learning route and various knowledge points:
Stage one:
Java environment construction → Java basic syntax (variables, data types, operators, flow control) → arrays → object-oriented → class access rights and channels → object-oriented advanced features (inheritance, abstract classes) → Java exception handling → Java set ( The three most commonly used data structures Set, Map, List interface and interface implementation class) → Java thread → Java IO stream
This is the basic stage of learning java development, and it is also the cornerstone of future learning.
Stage two:
MySQL database → JDBC → Servlet3.0 → Ajax
An essential enhancement course for Java learning.
Stage three:
Struts2 framework → Hibernate5 framework → Spring4.0 business layer framework
Now the popular framework technology in the field of Java.
Stage Four:
Spring MVC → MyBatis → Shiro
Stage five:
Springboot + VUE → ActiveMQ → RSA digital encryption algorithm → Codebar barcode generator → zxing QR code generator → Echarts chart → HighCharts chart → Web player ckplayer
The learning of Java should pay attention to the fit with the practicality of the current technology. IT is a field with rapid technological updates. Only by keeping up with the times will it not be eliminated.