JavaEE three-tier framework: service, dao, web
What is hibernate framework?
1. hibernate dao frame application layer framework of javaee.
2. hibernate dao achieve operation crud layer, the underlying code jdbc. Use hibernate advantage is jdbc without writing complex code that does not need to write the sql statement to achieve.
3. The open source lightweight framework
4. version: 3.x, 4.x, 5.x
Contents of the file: lib (hibernate related jar package), project (source code), documentation (document)
==>to be continued