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Most people don't understand the knowledge points of this article "java back-end development to learn what knowledge", so Xiaobian summarizes the following contents for everyone, the content is detailed, the steps are clear, and it has certain reference value. I hope everyone can gain something after reading this article. Let's take a look at this article "java back-end development to learn what knowledge".

preknowledge

java basic syntax, HTML basic syntax, CSS basic syntax, JavaScript basic syntax, database basic syntax.

HTML and CSS syntax do not require a beautiful interface (that is the responsibility of the front end), but at least a simple test page (can send and receive requests, can display data). JavaScript basic syntax is mainly Ajax part, can use Ajax to request data and parse data. Although this part of the knowledge is not a prerequisite for back-end knowledge, but back-end debugging can not lack these.

Servlet

Servlet is java server Mini programs (server applet) abbreviation, is java written back-end server programs, can be used to interact with clients. As long as you know the basic syntax of java, you can quickly get started with Servlet. Servlet is the cornerstone of java web, and the web framework learned later is basically inseparable from Servlet.

Note: There is another Servlet-related technology called JSP (Java Server Pages), which is usually used with Servlets to form the MVC pattern, but with the rise of Ajax, JSP is gradually being eliminated.

JDBC

JDBC is the Java database connection means, most of the use of back-end applications can not be separated from the database support, so Java back-end learning must learn this technology. Don't worry, though, because while you have to master this technique, most of the subsequent database connections are handled by the database framework.

front and rear separation

In the previous Servlet learning is the use of JSP for view layer processing, now you want to separate the front and back, when the front and back use json for data transmission, so you need to learn how to generate json on the back end, and how to send and receive json on the front end (debugging).

Backend Framework SSH and SSM

SSH is Struts2 as controller, Spring manages components of each layer, Hibernate is responsible for a framework of data persistence.

SSM is another framework where Spring MVC is the controller, Spring manages the components of each layer, and MyBatis is responsible for data persistence.

Both frameworks are currently popular java back-end frameworks, and you can start learning this part of the knowledge after you have Servlet and JDBC basics. Each of the two frameworks has its own advantages and disadvantages, and you can learn as needed. Learn this stage and you can start looking for a job (Spring-Boot is still a relatively new framework, so there are not as many people trying it, but SSM

And SSH appeared earlier, the application will be more people).

Spring-Boot

Spring-Boot is a framework designed based on Spring 4.0 and inherits the excellent features of Spring Framework. It also simplifies the entire build and development process by simplifying configuration. By introducing Maven and Gradle for project management, out-of-the-box and convention-over-configuration results were achieved. With SSH or SSM framework development, getting started with Spring-Boot will be faster.

The above is the content of this article about "java backend development to learn what knowledge", I believe everyone has a certain understanding, I hope the content shared by Xiaobian is helpful to everyone, if you want to know more relevant knowledge content, please pay attention to the industry information channel.

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