No MyBatis mapper was found in '[com.study.dal.***.mapper]' package

使用 MapperScannerConfigurer 自动扫描mapper下的文件时，一直出现下面警告： No MyBatis mapper was found in ‘[com.study.boot.dal.*.mapper]’ package.
并且也没有注册mapper的文件

配置如下

<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">        <property name="sqlSessionFactoryBeanName" value="sqlSessionFaction" />        <property name="annotationClass" value="javax.annotation.Resource" />        <property name="basePackage" value="com.study.boot.dal.***.mapper" />    </bean>

原因是： 由于增加了 annotationClass的配置， 导致只会扫描被 Resource 注解的文件，因此只需要把这段配置注释掉就ok

修改之后的配置如下

<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">        <property name="sqlSessionFactoryBeanName" value="sqlSessionFaction" />        <property name="basePackage" value="com.study.boot.dal.***.mapper" />    </bean>

使用annotationClass的源码如下：

protected void registerDefaultFilters() {      boolean acceptAllInterfaces = true;      // if specified, use the given annotation and / or marker interface      if (MapperScannerConfigurer.this.annotationClass != null) {        addIncludeFilter(new AnnotationTypeFilter(MapperScannerConfigurer.this.annotationClass));        acceptAllInterfaces = false;      }      // override AssignableTypeFilter to ignore matches on the actual marker interface      if (MapperScannerConfigurer.this.markerInterface != null) {        addIncludeFilter(new AssignableTypeFilter(MapperScannerConfigurer.this.markerInterface) {          @Override          protected boolean matchClassName(String className) {            return false;          }        });        acceptAllInterfaces = false;      }      if (acceptAllInterfaces) {        // default include filter that accepts all classes        addIncludeFilter(new TypeFilter() {          public boolean match(MetadataReader metadataReader, MetadataReaderFactory metadataReaderFactory) throws IOException {            return true;          }        });      }    }