Fix the issue with MyBatis-Spring integration where MyBatis reloading is not functioning properly and results in a NullPointerException.

[homejim]

Fixes

• When MyBatis runs in Spring-MyBatis mode, it encounters a NullPointerException and the reload fails.#556，#550,，#538,
• When MyBatis runs in Spring-MyBatis mode,there is no need to cache configuration-related data。The related reload operations are handled by SpringMybatisConfigurationProxy
• When MyBatis runs in Spring-MyBatis mode,we only need to use SpringMybatisConfigurationProxy for reloading. Refreshing the ConfigurationProxy is not meaningful.The same applies in the opposite case.

[homejim]

Hi, @skybber :
You can use my demo application to reproduce the issue with the original 1.4.2-SNAPSHOT. Modify the SQL, and you will encounter a NullPointerException along with the reload functionality not working. However, with the repackaged 1.4.2.1-SNAPSHOT that I provided, the error does not occur, and the functionality works correctly.

https://github.com/homejim/spring-mybatis-demo

[skybber]

Repository not found : https://github.com/homejim/spring-mybatis-demo

[homejim]

@skybber

Repository not found : https://github.com/homejim/spring-mybatis-demo

OK, I have set this repository to public.

This project uses an H2 in-memory database. After using Maven to download the dependencies, you can run it directly.

[skybber]

Pleas look at it

[skybber]

It looks great now, thanks for contribution!