What's the use of mybatis.type-aliases-package?

This article mainly introduces the use of mybatis.type-aliases-package, the article is very detailed, has a certain reference value, interested friends must read it!

The crater of mybatis.type-aliases-package

Custom POJO is often used in resultType in mapper.xml, and you can specify references to these POJO with fully qualified names.

For example:

Or you can have mybatis scan to a custom POJO automatically by specifying a POJO scan package in application.properties

As follows:

Mybatis.type-aliases-package=com.majing.learning.mybatis.entity

However, please be careful not to follow the word classpath after mybatis.type-aliases-package=, otherwise mybatis will not find POJO.

The function and usage of mybatis.type-aliases-package

Custom POJO is used in the type or parameterType of resultMap in the mapper.xml file.

For example:

Select * from User select * from User where username=# {username} select password from user where username=# {username} insert into user (username,password) value (# {username}, # {password})

In resultType= "User", User is the custom POJO. You can use the fully qualified name to specify the references to these POJO.

For example:

The second method is to use mybatis.type-aliases-package to specify the POJO scan package to have mybatis scan to the custom POJO automatically.

Configure the following information in the application.propertites configuration file: mybatis.type-aliases-package=com.example.entity

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