mapper接口注入两种方式详解

<!--使用模板类实现mybatis -->
  <bean id="sqlSession" class="org.mybatis.spring.SqlSessionTemplate">
    <constructor-arg name="sqlSessionFactory" ref="sqlSessionFactory"></constructor-arg>
    <constructor-arg name="executorType" value="BATCH"></constructor-arg>
    <constructor-arg name="exceptionTranslator" ref="myBatisExceptionTranslator"></constructor-arg>
  </bean>

public bookServiceImpl implements bookService{

  @Autowired
  public SqlSessionTemplate sqlSession;//注入sqlsessionTemplate

  public List<book> getBookInformation(book param){
   logger.info("getBookInformation()"+param.toString());
   bookMapper mapper = sqlSession.getMapper(bookMapper.class);//调用mapper接口
   List<book> bookList=mapper.queryBookInfo(param);
 
   return bookList;
  }
}

<!--&lt;!&ndash; 5.配置mybatisDao接口扫描MapperScannerConfigurer &ndash;&gt;-->
  <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
    <property name="basePackage" value="com.alice.dao"></property>
  </bean>

public class UserServiceImpl implements IUserService {
  @Autowired
  private UserMapper mapper; //直接注入mapper dao接口的bean

  public List<User> selectAll(String keyword1,String keyword2) {
    return mapper.selectAll(keyword1,keyword2);
  }
}