我有以下 json-ld 文档。
{
"@context": {
"ex": "http://example.com/",
"yyyy": "ex:yyyy",
"name": "ex:name",
"rdf": "http://www.w3.org/1999/02/22-rdf-syntax-ns#",
"rdfs": "http://www.w3.org/2000/01/rdf-schema#",
"sch": "http://schema.org/",
"xml": "http://www.w3.org/XML/1998/namespace",
"xsd": "http://www.w3.org/2001/XMLSchema#"
},
"@id": "ex:Bobe",
"@type": "ex:MyType",
"yyyy": {
"@type": "ex:XXXX",
"name": "my name"
}
}
RDF表示是:
@prefix ex: <http://example.com/> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix sch: <http://schema.org/> .
@prefix xml: <http://www.w3.org/XML/1998/namespace> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
ex:Bobe a ex:MyType ;
ex:yyyy [ a ex:XXXX ;
ex:name "my name" ] .
我想写的是: "yyyy": { ... }
作为
"yyyy": {
"name": "my name"
}
并有 "@type": "ex:XXXX"
中指定的"@context"。
这可能吗?
我试过的,但没想到能成功,是。
{
"@context": {
"ex": "http://example.com/",
"yyyy": {
"@id": "ex:yyyy",
"@type": "ex:XXXX"
},
"name": "ex:name",
"rdf": "http://www.w3.org/1999/02/22-rdf-syntax-ns#",
"rdfs": "http://www.w3.org/2000/01/rdf-schema#",
"sch": "http://schema.org/",
"xml": "http://www.w3.org/XML/1998/namespace",
"xsd": "http://www.w3.org/2001/XMLSchema#"
},
"@id": "ex:Bobe",
"@type": "ex:MyType",
"yyyy": {
"name": "my name"
}
}
这里面有一个RDF表示法
@prefix ex: <http://example.com/> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix sch: <http://schema.org/> .
@prefix xml: <http://www.w3.org/XML/1998/namespace> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
ex:Bobe a ex:MyType ;
ex:yyyy [ ex:name "my name" ] .
在N-Quad上的表示 JSON-LD游乐场 是。
<http://example.com/Bobe> <http://example.com/yyyy> _:b0 .
<http://example.com/Bobe> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://example.com/MyType> .
_:b0 <http://example.com/name> "my name" .
所以,"@type "的信息丢失了。
当然,这需要在我有的情况下工作。
{
"@context": {
"ex": "http://example.com/",
"yyyy": {
"@id": "ex:yyyy",
"@type": "ex:XXXX"
},
"name": "ex:name",
"rdf": "http://www.w3.org/1999/02/22-rdf-syntax-ns#",
"rdfs": "http://www.w3.org/2000/01/rdf-schema#",
"sch": "http://schema.org/",
"xml": "http://www.w3.org/XML/1998/namespace",
"xsd": "http://www.w3.org/2001/XMLSchema#"
},
"@id": "ex:Bobe",
"@type": "ex:MyType",
"yyyy": [ { "name": "my name" },
{ "name": "my other" } ]
}
我认为这是不可能的,但我想确认一下。
一般用于生成这种输出的python代码是。
graph_data = """
{
"@id": "ex:Bobe",
"@type": "ex:MyType",
"@context": {
"ex": "http://example.com/",
"yyyy": "ex:yyyy",
"name": "ex:name",
"rdf": "http://www.w3.org/1999/02/22-rdf-syntax-ns#",
"rdfs": "http://www.w3.org/2000/01/rdf-schema#",
"sch": "http://schema.org/",
"xml": "http://www.w3.org/XML/1998/namespace",
"xsd": "http://www.w3.org/2001/XMLSchema#"
},
"yyyy": {
"@type": "ex:XXXX",
"name": "my name"
}
}
"""
print( graph_data )
data = rdflib.Graph().parse( data = graph_data, format = 'json-ld' )
print( f"{data.serialize( format = 'ttl' ).decode( 'utf8' )}" )
来自 https:/www.w3.orgTRjson-ld11#context-definitions:
"上下文定义必须是一个映射,其键必须是术语、紧凑的IRI、IRI,或者是@base、@import、@language、@propagate、@protected、@type、@version或@vocab等关键词之一。"
所以 @context
真的不知道嵌套信息的事情,因为你有了
"yyyy": {
"@id": "ex:yyyy",
"@type": "ex:XXXX"
},
@context
用不上 架构,只是命名空间管理