Neo4j无法正确保存标签

Question

I am using Spring to add some nodes into my neo4j database. When I save a 'Person' node, I notice that it gets saved twice. Once as a "Person" and another time as a "_Person".

Anyone know why that is?

Answer 1

That's the documented and expected behaviour. RTFM (read the fine manual) at http://docs.spring.io/spring-data/data-neo4j/docs/3.2.1.RELEASE/reference/html/#reference_programming-model_typerepresentationstrategy :

Each node gets labeled with its type and all supertypes and interfaces that are also @NodeEntity-annotated. There is a special Label prefixed with _ that represents the current type of the entity.