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This article mainly shows you "what is the role of Mybatis", the content is easy to understand, clear, hope to help you solve your doubts, the following let the editor lead you to study and learn "what is the role of Mybatis" this article?

Mybatis is an ORM framework that implements data persistence, which is simply encapsulated by JDBC.

Advantages:

Compared with JDBC, it reduces a lot of code and is easy to learn.

The use of flexible, SQL statements written in XML, completely separated from the program code, reducing the degree of coupling, easy to manage.

Provides XML tags to support the writing of dynamic SQL statements.

Provides mapping tags to support the mapping of objects to the ORM fields of the database.

Disadvantages:

There is a lot of work to write SQL statements, especially when there are too many fields and associated tables.

The SQL statement depends on the database, which leads to the poor portability of the database and can not replace the database at will.

Quick start exampl

Environment building

Create a new maven project. Pom.xml depends on the following:

Org.mybatis

Mybatis

3.4.5

Mysql

Mysql-connector-java

8.0.17

Org.projectlombok

Lombok

1.16.12

Src/main/java

* * / .xml

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