Shulou(Shulou.com)06/03 Report--

Many novices are not very clear about what the two ways of mapper interface injection are. In order to help you solve this problem, the following editor will explain it in detail. People with this need can come and learn. I hope you can get something.

1. Use the template method:

Calls in the background:

Public bookServiceImpl implements bookService {@ Autowired public SqlSessionTemplate sqlSession;// injects sqlsessionTemplate public List getBookInformation (book param) {logger.info ("getBookInformation ()" + param.toString ()); bookMapper mapper = sqlSession.getMapper (bookMapper.class); / / calls mapper interface List bookList=mapper.queryBookInfo (param); return bookList;}}

two。 Use the scanning interface:

Call at backend:

Public class UserServiceImpl implements IUserService {@ Autowired private UserMapper mapper; / / directly injected into bean public List selectAll (String keyword1,String keyword2) of mapper dao interface {return mapper.selectAll (keyword1,keyword2);}}

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