我最近在 Rowlex 中遇到了一个问题。它与日期时间检索有关。
在我的 RDF 文件中,我有两个这样的实例:
<Ontologyowl:Note rdf:about="http://www.faraway_learning.edu/ehsanm/not106179">
<Ontologyowl:title rdf:datatype="http://www.w3.org/2001/XMLSchema#string">Test1</Ontologyowl:title>
<Ontologyowl:dateOfCreation rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2009-03-28T20:58:31Z</Ontologyowl:dateOfCreation>
<Ontologyowl:relatedToClass rdf:resource="clas000021"/>
<Ontologyowl:ranking_general_stuNum rdf:datatype="http://www.w3.org/2001/XMLSchema#int">0</Ontologyowl:ranking_general_stuNum>
<Ontologyowl:ranking_general_tchNum rdf:datatype="http://www.w3.org/2001/XMLSchema#int">0</Ontologyowl:ranking_general_tchNum>
<Ontologyowl:isShared rdf:datatype="http://www.w3.org/2001/XMLSchema#boolean">True</Ontologyowl:isShared>
<Ontologyowl:anonymousAuthor rdf:datatype="http://www.w3.org/2001/XMLSchema#boolean">False</Ontologyowl:anonymousAuthor>
</Ontologyowl:Note>
<Ontologyowl:Note rdf:about="http://www.faraway_learning.edu/ehsanm/not941065">
<Ontologyowl:title rdf:datatype="http://www.w3.org/2001/XMLSchema#string">Test 2</Ontologyowl:title>
<Ontologyowl:dateOfCreation rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2008-09-09T13:18:35Z</Ontologyowl:dateOfCreation>
<Ontologyowl:relatedToResource>
<Ontologyowl:LearningResource rdf:about="res323717"/>
</Ontologyowl:relatedToResource>
<Ontologyowl:ranking_general_stuNum rdf:datatype="http://www.w3.org/2001/XMLSchema#int">0</Ontologyowl:ranking_general_stuNum>
<Ontologyowl:ranking_general_tchNum rdf:datatype="http://www.w3.org/2001/XMLSchema#int">0</Ontologyowl:ranking_general_tchNum>
<Ontologyowl:isShared rdf:datatype="http://www.w3.org/2001/XMLSchema#boolean">True</Ontologyowl:isShared>
<Ontologyowl:anonymousAuthor rdf:datatype="http://www.w3.org/2001/XMLSchema#boolean">False</Ontologyowl:anonymousAuthor>
</Ontologyowl:Note>
我使用这段代码来检索这两个实例的日期时间:
OwlThing[] noteThing = rdfDoc.GetIndividuals(Note.Uri, false, false, false);
foreach (OwlThing item in noteThing)
{
DataRow dtRow = resultDt.NewRow();
dtRow["uri"] = ((Note_)item).ID;
dtRow["title"] = ((Note_)item).title.ToString();
dtRow["date"] = (DateTime)(((Note_)item).dateOfCreation);
但是,部分 '((Note_)item).dateOfCreation' 的值与 RDF 值不同。对于上面的示例,它们是:
标题:测试 2
值:2008-09-09T17:48:35Z
标题:测试1 值
:2009-03-29T01:28:31Z
替代文字 http://img37.imageshack.us/img37/6489/26739420.jpg
我是在这个过程中犯了什么错误?
先感谢您