| ssh2/自定义MVC | ssm |
| action | controller |
| biz | service |
| dao | mapper |
| IXxxDao.java(接口) | XxxMapper.java(接口) |
| XxxDaoImpl.java(实现类) | XxxMapper.xml |
| entity | model |
| Xxx.java | Xxx.java |

| ssh2/自定义MVC | ssm |
| action | controller |
| biz | service |
| dao | mapper |
| IXxxDao.java(接口) | XxxMapper.java(接口) |
| XxxDaoImpl.java(实现类) | XxxMapper.xml |
| entity | model |
| Xxx.java | Xxx.java |