spring boot Can not #Autowired dao - spring-boot

Question

I met a question , I try to startup project,bu it's failed
These are my configuration ,dao and service , is anyone can tell me why ,thx a lot
This is DataBaseConfiguration:
#Configuration
#EnableTransactionManagement
public class DataBaseConfiguration implements EnvironmentAware {
private RelaxedPropertyResolver propertyResolver;
private static Logger log = LoggerFactory.getLogger(DataBaseConfiguration.class);
#Override
public void setEnvironment(Environment env) {
this.propertyResolver = new RelaxedPropertyResolver(env, "dataSource.");
}
#Bean(destroyMethod = "close")
public DataSource dataSource() {
log.debug("Configuring DataSource");
DruidDataSource druidDataSource = new DruidDataSource();
druidDataSource.setUrl(propertyResolver.getProperty("url"));
druidDataSource.setDriverClassName(propertyResolver.getProperty("driverClassName"));
druidDataSource.setUsername(propertyResolver.getProperty("username"));
druidDataSource.setPassword(propertyResolver.getProperty("password"));
return druidDataSource;
}
}
This is MybatisConfiguration :
#Configuration
#ConditionalOnClass({ EnableTransactionManagement.class, EntityManager.class})
#AutoConfigureAfter({ DataBaseConfiguration.class })
#MapperScan("com.future.api.**.dao")
public class MybatisConfiguration implements EnvironmentAware {
private static Log logger = LogFactory.getLog(MybatisConfiguration.class);
private RelaxedPropertyResolver propertyResolver;
#Autowired
private DataSource dataSource;
#Override
public void setEnvironment(Environment env) {
this.propertyResolver = new RelaxedPropertyResolver(env, "mybatis.");
}
#Bean
#ConditionalOnMissingBean
public SqlSessionFactory sqlSessionFactory() {
try {
SqlSessionFactoryBean sessionFactory = new SqlSessionFactoryBean();
sessionFactory.setDataSource(dataSource);
sessionFactory.setTypeAliasesPackage(propertyResolver
.getProperty("typeAliasesPackage"));
sessionFactory
.setMapperLocations(new PathMatchingResourcePatternResolver()
.getResources(propertyResolver
.getProperty("mapperLocations")));
sessionFactory
.setConfigLocation(new DefaultResourceLoader()
.getResource(propertyResolver
.getProperty("configLocation")));
return sessionFactory.getObject();
} catch (Exception e) {
logger.warn("Could not configure mybatis session factory");
return null;
}
}
#Bean
#ConditionalOnMissingBean
public DataSourceTransactionManager transactionManager() {
return new DataSourceTransactionManager(dataSource);
}
}
This is dao
public interface UserMapper extends BaseDao<User,UserCriteria ,String> {
#SelectProvider(type=UserSqlProvider.class, method="countByExample")
int countByExample(UserCriteria example);
#DeleteProvider(type=UserSqlProvider.class, method="deleteByExample")
int deleteByExample(UserCriteria example);
#Delete({
"delete from t_user",
"where id = #{id,jdbcType=VARCHAR}"
})
int deleteByPrimaryKey(String id);
#Insert({
"insert into t_user (id, username, ",
"password, created_by, ",
"created_date, last_modified_by, ",
"last_modified_date)",
"values (#{id,jdbcType=VARCHAR}, #{username,jdbcType=VARCHAR}, ",
"#{password,jdbcType=VARCHAR}, #{createdBy,jdbcType=VARCHAR}, ",
"#{createdDate,jdbcType=DATE}, #{lastModifiedBy,jdbcType=VARCHAR}, ",
"#{lastModifiedDate,jdbcType=DATE})"
})
int insert(User record);
}
This is service
#Service
#Transactional
public class UserServiceImp extends BaseServiceImpl<User,UserCriteria> implements UserService {
#Autowired
private UserMapper userDao;
#Override
protected BaseDao<User, UserCriteria, String> getDao() {
return userDao;
}
}
This error info
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.future.api.user.dao.UserMapper com.future.api.user.service.imp.UserServiceImp.userDao; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.future.api.user.dao.UserMapper] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {#org.springframework.beans.factory.annotation.Autowired(required=true)}
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:573) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE]
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE]
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:331) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE]
... 22 common frames omitted
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.future.api.user.dao.UserMapper] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {#org.springframework.beans.factory.annotation.Autowired(required=true)}
at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoSuchBeanDefinitionException(DefaultListableBeanFactory.java:1373) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1119) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1014) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE]
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:545) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE]
... 24 common frames omitted

Answer 1

I believe your problem may be this annotation:
#MapperScan("com.future.api.**.dao")
I haven't seen before (in code as well as in documentation) that it would be possible to use wildcards. Try use exact package name.
I believe it scans also sub-packages, so you may want to change package structure to have all DAOs in tree under single package.