1. Annotation (refer to JPA specification, definition of annotation, acquisition of annotation) 2. Reflection (call method, get return value) 3. SQL generation (get the parameters [table, column] in the annotation, generate sql) 4. Obtain the return value through reflection, reflect it into the class, and assemble the parameters
Refer to this: http://www.oschina.net/code/s... There are only a few hundred lines of code. It’s just code under Android. To transplant it to ordinary JAVA, you need to make slight modifications.
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
Please refer to the source code of nutz.
http://study.163.com/course/c...
mybatis.
nutz contains too much.
1. Annotation (refer to JPA specification, definition of annotation, acquisition of annotation)
2. Reflection (call method, get return value)
3. SQL generation (get the parameters [table, column] in the annotation, generate sql)
4. Obtain the return value through reflection, reflect it into the class, and assemble the parameters
Refer to this: http://www.oschina.net/code/s... There are only a few hundred lines of code. It’s just code under Android. To transplant it to ordinary JAVA, you need to make slight modifications.
Openjpa