Multi Space 
Fixed Space 
- Add @Space("myspace") to the entity class to specify the space to which the tag belongs.
- In the mapper tag of xml
xml
<!-- Higher priority than the space specified in the yml connection parameters -->
<mapper namespace="your.domain.PersonDao" space="test">
</mapper>- Specify space in the tag of the interface method, such as:
xml
<mapper namespace="your.domain.PersonDao" space="test">
  <!-- Higher priority than "test" in the mapper  -->
  <select id="spaceFromParam" space="test2">
    RETURN true;
  </select>
</mapper>Dynamic Space (^1.2.2) 
xml
<select id="spaceFromParam" space="${paramMySpace}" spaceFromParam="true">
  RETURN true;
</select>
paramMySpaceis passed in through the interface parameter.