Neo4j官方：neosemantics (n10s): Neo4j RDF & Semantics toolkit
一、安装
1、下载
下载 扩展neosemantics jar包 将jar复制到neo4j/plugins注：neosemantics jar包必须与Neo4J匹配版本。https://github.com/neo4j-labs/neosemantics
修改配置文件
2.1 Neo4j的4.x版本
添加配置文件结尾：
dbms.unmanaged_extension_classes=n10s.endpoint=/rdf 2.2 Neo4j的3.x版本
添加配置文件结尾：
dbms.unmanaged_extension_classes=semantics.extension=/rdf 3、重启neo4j
二、导入RDF文件
1、先初始化 Graph Config
CALL n10s.graphconfig.init() | param | value |
|---|---|
| “handleVocabUris” | “SHORTEN” |
| “handleMultival” | “OVERWRITE” |
| “handleRDFTypes” | “LABELS” |
| “keepLangTag” | false |
| “keepCustomDataTypes” | false |
| “applyNeo4jNaming” | false |
| “baseSchemaNamespace” | “neo4j://graph.schema#” |
| “baseSchemaPrefix” | “n4sch” |
| “classLabel” | “Class” |
| “subClassOfRel” | “SCO” |
| “dataTypePropertyLabel” | “Property” |
| “objectPropertyLabel” | “Relationship” |
| “subPropertyOfRel” | “SPO” |
| “domainRel” | “DOMAIN” |
| “rangeRel” | “RANGE” |
预览待导入文件
2.1 远程链接预览【n10s.rdf.preview.fetch】
As our RDF document is hosted online, we can use n10s.rdf.preview.fetch to fetch the RDF from a remote URL.
CALL n10s.rdf.preview.inline( '<< YOUR RDF QUERY HERE >>', '<< FORMAT >>' ) 比如：
CALL n10s.rdf.preview.fetch( 'https://raw.githubusercontent.com/neo4j-labs/neosemantics/3.5/docs/rdf/nsmntx.ttl', 'Turtle' ) 
2.1 通过文本预览【n10s.rdf.preview.inline】
CALL n10s.rdf.preview.inline( ' @prefix neo4voc: <http://neo4j.org/vocab/sw#> .
@prefix neo4ind: <http://neo4j.org/ind#> .
neo4ind:nsmntx3502 neo4voc:name "NSMNTX" ;
a neo4voc:Neo4jPlugin ;
neo4voc:version "3.5.0.2" ;
neo4voc:releaseDate "03-06-2019" ;
neo4voc:runsOn neo4ind:neo4j355 .
neo4ind:apoc3502 neo4voc:name "APOC" ;
a neo4voc:Neo4jPlugin ;
neo4voc:version "3.5.0.4" ;
neo4voc:releaseDate "05-31-2019" ;
neo4voc:runsOn neo4ind:neo4j355 .
neo4ind:graphql3502 neo4voc:name "Neo4j-GraphQL" ;
a neo4voc:Neo4jPlugin ;
neo4voc:version "3.5.0.3" ;
neo4voc:releaseDate "05-05-2019" ;
neo4voc:runsOn neo4ind:neo4j355 .
neo4ind:neo4j355 neo4voc:name "neo4j" ;
a neo4voc:GraphPlatform , neo4voc:AwesomePlatform ;
neo4voc:version "3.5.5" .
',
'Turtle'
)
3、导入待导入文件
3.1 通过远程链接导入【n10s.rdf.preview.fetch】
CALL n10s.rdf.import.fetch(
'https://raw.githubusercontent.com/neo4j-labs/neosemantics/3.5/docs/rdf/nsmntx.ttl',
'Turtle'
)
3.2 通过文本导入
CALL n10s.rdf.import.inline(
'
@prefix neo4voc: <http://neo4j.org/vocab/sw#> .
@prefix neo4ind: <http://neo4j.org/ind#> .
neo4ind:nsmntx3502 neo4voc:name "NSMNTX" ;
a neo4voc:Neo4jPlugin ;
neo4voc:version "3.5.0.2" ;
neo4voc:releaseDate "03-06-2019" ;
neo4voc:runsOn neo4ind:neo4j355 .
neo4ind:apoc3502 neo4voc:name "APOC" ;
a neo4voc:Neo4jPlugin ;
neo4voc:version "3.5.0.4" ;
neo4voc:releaseDate "05-31-2019" ;
neo4voc:runsOn neo4ind:neo4j355 .
neo4ind:graphql3502 neo4voc:name "Neo4j-GraphQL" ;
a neo4voc:Neo4jPlugin ;
neo4voc:version "3.5.0.3" ;
neo4voc:releaseDate "05-05-2019" ;
neo4voc:runsOn neo4ind:neo4j355 .
neo4ind:neo4j355 neo4voc:name "neo4j" ;
a neo4voc:GraphPlatform , neo4voc:AwesomePlatform ;
neo4voc:version "3.5.5" .
',
'Turtle'
)
三、Neo4j导出RDF文件
CALL n10s.rdf.export.cypher("MATCH (p:GraphPlatform) RETURN p")
四、删除导入到Neo4j中的RDF数据
To delete RDF data from our Neo4j Graph, we can use the n10s.rdf.delete.fetch procedure.
As with the preview and import procedures, this accepts two arguments: the URL of the RDF query and the format.
CALL n10s.rdf.delete.fetch(
'https://raw.githubusercontent.com/neo4j-labs/neosemantics/3.5/docs/rdf/nsmntx.ttl',
'Turtle'
)
CALL semantics.importRDF("file:///C:/软件/neo4j-community-3.5.5-windows/neo4j-community-3.5.5/import/dsc.nlp-bigdatalab.org.ttl", "Turtle", {shortenUrls: false})
参数：数据的绝对路径
数据格式：turtle, 即ttl格式
shortenUrls：是否省略url展示
参考资料： Neo4j官方：neosemantics (n10s): Neo4j RDF & Semantics toolkit 如何将owl/RDF文件导入neo4j RDF数据（ttl）导入neo4j 将中文开放知识图谱的owl文件导入到neo4j中，踩坑总结