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JavaEE 13 kinds of technology refers to which, many novices are not very clear about this, in order to help you solve this problem, the following editor will explain for you in detail, people with this need can come to learn, I hope you can gain something.

SSM technology refers to: Spring, SpringMVC, MyBatis

JavaEE main technology JavaEE claims to have thirteen core technologies. They are: JDBC, JNDI, EJB, RMI, Servlet, JSP, XML, JMS, Java IDL, JTS, JTA, JavaMail and JAF.

A brief introduction to the technologies that need to be paid attention to.

JDBC Java database connection (Java Database Connectivity,JDBC) is an application program interface used in Java language to regulate how client programs access the database, providing methods such as querying and updating data in the database.

The JNDI Java naming and Directory Interface (Java Naming and Directory Interface,JNDI), a directory service application program interface (API) of Java, provides a directory system and associates service names with objects, allowing developers to use names to access objects during development.

EJB Enterprise JavaBean (Enterprise JavaBean, EJB) is a server-side manageable component used to build enterprise applications. However, this thing has basically cooled down since the advent of Spring. Just know what it is.

Servlet Servlet (Server Applet) is a server-side program written in Java. Its main function is to browse and modify data interactively to generate dynamic Web content.

In a narrow sense, Servlet refers to an interface implemented by Java language, and in a broad sense, Servlet refers to any class that implements this Servlet interface. Generally speaking, Servlet is understood as the latter.

JSP JSP (full name JavaServer Pages) is a dynamic web technology standard led by Sun. JSP is deployed on the network server, it can respond to the request sent by the client, and dynamically generate Web web pages of HTML, XML or other format documents according to the content of the request, and then return to the requester.

One of the reasons why the JavaEE framework JavaEE has a wide market is that a variety of frameworks can be used to make development easier. There are a variety of choices for frameworks. At present, the more common combination of frameworks are SSH and SSM. It will be described in detail in later chapters. In addition, Spring itself also provides a variety of levels of framework to choose from, you can go to the Spring official website for details.

Spring: https://spring.io/

SSH Structs + Spring + Hibernate

SSM Spring + SpringMVC + MyBatis

JavaEE learning path generally speaking, beginners should follow the following path

Servlet-> JSP-> Spring-> Combinatorial Framework

Although Servlet and JSP are rarely used directly in future development, they are the basis of various frameworks and should be understood at the beginning. These two parts are not difficult, I believe that after the baptism of JavaSE, only need to carry out short-term learning, know what they are, can be put into practice.

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