问题
I'm searching for free and simple DAO generator for java (it needs to create entities/bens from db tables/views and generate basic CRUD code). Currently, I`m using DAO4J which lacks some functionality like views mapping. I know that there are frameworks like Hibernate but I dont need such robust framework.
Some things this framework should have to do:
- Generate CRUD operations with standard SQL queries and not compile-time typesafe queries
- Doesn't have session concept like hibernate
- Will not automatically close connection
- JDBC Connection can be configured through code
回答1:
None of these are perfect matches, but both rock, in their own individual way:
- Spring Roo generates DAOs, Web Controllers and more for you.
- QueryDSL automatically creates Objects from your database tables and offers an Object-Oriented query syntax with compile-time safety.
But I'd say the winner is Spring Data. It offers a simple but powerful abstraction over many different underlying data store technologies and generates daos for you automatically. Here's a presentation of Spring Data JPA. Unfortunately Spring Data has not been released in final versions yet.
回答2:
To add to duffymo's answer, MyBatis is good and you can use the MyBatis generator to generate data access code.
回答3:
If you just need a code generator without adherence to a framework, you should try Telosys Tools. It's a lightweight tool, it generates code from an existing database model.
See https://www.telosys.org
Some templates are specially designed for JDBC code generation, they are available on GitHub https://github.com/telosys-templates-v3
They offer code generation for DAO, DAO interfaces, POJO (beans), JUnit tests, etc
回答4:
I wouldn't be much in favor of automatic generation.
I can recommend iBatis as a half step between JDBC and Hibernate.
回答5:
You can do this with Hibernate Tools. But I personally never tried it, I have only created entity classes by now.
回答6:
I would second iBatis. Other suggestion can be Spring JDBCTemplate. Since you are fine to adopt a framework, so why not go with Spring. It will also facilitate you with other great things.
来源：https://stackoverflow.com/questions/6042336/dao-generator-for-java