neosemantics (n10s)：Neo4j RDF & Semantics toolkit【将ttl/owl/RDF文件导入neo4j】【neo4j3.X版本与neo4j4.X有区别】

╰+攻爆jí腚メ 2023-09-29 12:26 7阅读 0赞

[Neo4j官方：neosemantics (n10s): Neo4j RDF & Semantics toolkit][Neo4j_neosemantics _n10s_ Neo4j RDF _ Semantics toolkit]

## 一、安装 ##

### 1、下载 ###

下载 [扩展neosemantics jar包][neosemantics jar] 将jar复制到neo4j/plugins目录下。注意：neosemantics jar包必须与Neo4J版本相匹配。https://github.com/neo4j-labs/neosemantics

### 2、修改配置文件 ###

#### 2.1 Neo4j的4.x版本 ####

在配置文件结尾加上：

dbms.unmanaged_extension_classes=n10s.endpoint=/rdf

#### 2.2 Neo4j的3.x版本 ####

在配置文件结尾加上：

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()

**参数默认值：**

<table> 
 <thead> 
  <tr> 
   <th>param</th> 
   <th>value</th> 
  </tr> 
 </thead> 
 <tbody> 
  <tr> 
   <td>“handleVocabUris”</td> 
   <td>“SHORTEN”</td> 
  </tr> 
  <tr> 
   <td>“handleMultival”</td> 
   <td>“OVERWRITE”</td> 
  </tr> 
  <tr> 
   <td>“handleRDFTypes”</td> 
   <td>“LABELS”</td> 
  </tr> 
  <tr> 
   <td>“keepLangTag”</td> 
   <td>false</td> 
  </tr> 
  <tr> 
   <td>“keepCustomDataTypes”</td> 
   <td>false</td> 
  </tr> 
  <tr> 
   <td>“applyNeo4jNaming”</td> 
   <td>false</td> 
  </tr> 
  <tr> 
   <td>“baseSchemaNamespace”</td> 
   <td>“neo4j://graph.schema#”</td> 
  </tr> 
  <tr> 
   <td>“baseSchemaPrefix”</td> 
   <td>“n4sch”</td> 
  </tr> 
  <tr> 
   <td>“classLabel”</td> 
   <td>“Class”</td> 
  </tr> 
  <tr> 
   <td>“subClassOfRel”</td> 
   <td>“SCO”</td> 
  </tr> 
  <tr> 
   <td>“dataTypePropertyLabel”</td> 
   <td>“Property”</td> 
  </tr> 
  <tr> 
   <td>“objectPropertyLabel”</td> 
   <td>“Relationship”</td> 
  </tr> 
  <tr> 
   <td>“subPropertyOfRel”</td> 
   <td>“SPO”</td> 
  </tr> 
  <tr> 
   <td>“domainRel”</td> 
   <td>“DOMAIN”</td> 
  </tr> 
  <tr> 
   <td>“rangeRel”</td> 
   <td>“RANGE”</td> 
  </tr> 
 </tbody> 
</table>

### 2、预览待导入文件 ###

#### 2.1 通过远程链接预览【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'
    )

![在这里插入图片描述][f946d81832c6434dbe444b4bb9629acc.png_pic_center]

#### 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][Neo4j_neosemantics _n10s_ Neo4j RDF _ Semantics toolkit]  
[如何将owl/RDF文件导入neo4j][owl_RDF_neo4j]  
[RDF数据（ttl）导入neo4j][RDF_ttl_neo4j]  
[将中文开放知识图谱的owl文件导入到neo4j中，踩坑总结][owl_neo4j]

[Neo4j_neosemantics _n10s_ Neo4j RDF _ Semantics toolkit]: https://neo4j.com/labs/neosemantics/
[neosemantics jar]: https://github.com/immense8342/neosemantics
[f946d81832c6434dbe444b4bb9629acc.png_pic_center]: https://img-blog.csdnimg.cn/f946d81832c6434dbe444b4bb9629acc.png#pic_center
[owl_RDF_neo4j]: https://zhuanlan.zhihu.com/p/347501642
[RDF_ttl_neo4j]: https://blog.csdn.net/weixin_37665090/article/details/108710340
[owl_neo4j]: https://blog.csdn.net/qq_43071444/article/details/121200748