What technologies do you need to master for java back-end development?

1. Servlet

Servlet technology is one of the important technologies of Java back-end. As the core component of Java Web development, Servlet assumes the responsibility of Web Central role in MVC structure (functional navigation). Although the traditional Model2 structure (Servlet JavaBean JSP) is rarely used nowadays, the basic structure of Web development remains unchanged.

The application of Servlet technology involves Web containers, sessions (HttpSession), security, synchronization, Web application deployment and other related contents.

2. Java operation database

Back-end development inevitably deals with databases, so mastering Java database operations is a basic requirement. Contents involved in Java operation database include JDBC, JNDI, RMI, DAO, etc. Among them, using RMI JDBC is a common solution for building Java database development, while JNDI is the definition of various resources.

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3. Spring Framework

Spring SpringMVC MyBatis is currently a relatively common For back-end development solutions, the principle of Spring is to build a "business component container", SpringMVC is a specific implementation framework of Web MVC, and MyBatis is an implementation framework based on DAO. From a performance perspective, Spring is a lightweight solution for EJB and is welcomed by the majority of Java programmers.

If you have the foundation of Servlet and database operations, then learning the use of these frameworks is a very easy process. Although Spring-based programming is more convenient, Spring also has shortcomings, such as the configuration file is too cumbersome.

4. Combined with hadoop to build distributed development of Java

Distributed development of Java is an important part of improving Java back-end processing capabilities. RMI is Java distributed development A relatively common solution and relatively simple to learn. After learning RMI, you can further learn to build Java distributed applications under the Hadoop platform (big data platform). In addition, Docker (commonly used in cloud computing) is also a good platform for building distributed development.

Java development involves a lot of content and requires a systematic learning process. It is recommended to learn during actual use, so that the effect will be better.

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