有没有Java语言使用“注解”、“反射”写的小型ORM？

Question

想自己试着写一个orm，使用注解和反射来实现，但是没有思路。在网上也没有找到类似的开源项目，有没有谁知道啊？
谢谢！

Answer 1

Please refer to the source code of nutz.

Answer 2

http://study.163.com/course/c...

Answer 3

mybatis.
nutz contains too much.

Answer 4

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

Answer 5

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.

Answer 6

Openjpa