Java解析来自fuseki服务器的内容错误
我发现这段代码应该解析来自fuseki服务器的内容，我上传了一个RDF文件，但它返回Java解析来自fuseki服务器的内容错误,java,rdf,ontology,fuseki,Java,Rdf,Ontology,Fuseki,我发现这段代码应该解析来自fuseki服务器的内容，我上传了一个RDF文件，但它返回404notfound 为什么会出现此错误，因为我可以使用代码中的路径从服务器访问上载的文件 myRDF上载到fuseki服务器的路径是，它包含以下内容： @prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> . @prefix admin: <http://webns.net/mvcb/> . @prefix rdfs:
404notfoundRDF@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix admin: <http://webns.net/mvcb/> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
<http://localhost:3030/Date/data>
a foaf:PersonalProfileDocument ;
admin:errorReportsTo <mailto:leigh@ldodds.com> ;
admin:generatorAgent <http://www.ldodds.com/foaf/foaf-a-matic> ;
foaf:maker <http://localhost:3030/Date/data#me> ;
foaf:primaryTopic <http://localhost:3030/Date/data#me> .
<http://localhost:3030/Date/data#me>
a foaf:Person ;
foaf:family_name "Smith" ;
foaf:givenname "John" ;
foaf:homepage <http://localhost:3030/Date/site.net> ;
foaf:knows [ a foaf:Person ;
foaf:mbox_sha1sum "13add4a38db79b6645aca8dafe59051d971c38e6" ;
foaf:name "Mary"
] ;
foaf:knows [ a foaf:Person ;
foaf:mbox_sha1sum "0072d6deb958659e205919ec647f3432cf75680d" ;
foaf:name "George"
] ;
foaf:knows [ a foaf:Person ;
foaf:mbox_sha1sum "d0aba3272918de44d34185558f06a507b8efe49c" ;
foaf:name "Lora"
] ;
foaf:knows [ a foaf:Person ;
foaf:mbox_sha1sum "13add4a38db79b6645aca8dafe59051d971c38e6" ;
foaf:name "Mary"
] ;
foaf:knows [ a foaf:Person ;
foaf:mbox_sha1sum "0072d6deb958659e205919ec647f3432cf75680d" ;
foaf:name "George"
] ;
foaf:knows [ a foaf:Person ;
foaf:mbox_sha1sum "d0aba3272918de44d34185558f06a507b8efe49c" ;
foaf:name "Lora"
] ;
foaf:knows [ a foaf:Person ;
foaf:mbox_sha1sum "13add4a38db79b6645aca8dafe59051d971c38e6" ;
foaf:name "Mary"
] ;
foaf:knows [ a foaf:Person ;
foaf:mbox_sha1sum "0072d6deb958659e205919ec647f3432cf75680d" ;
foaf:name "George"
] ;
foaf:knows [ a foaf:Person ;
foaf:mbox_sha1sum "d0aba3272918de44d34185558f06a507b8efe49c" ;
foaf:name "Lora"
] ;
foaf:mbox_sha1sum "77d0a8b957b9e316620d66631e1254e906148164" ;
foaf:name "John Smith" ;
foaf:nick "Johnny" ;
foaf:phone <tel:0745158477> ;
foaf:schoolHomepage <http://localhost:3030/Date/Harvard> ;
foaf:title "Dr" ;
foaf:workInfoHomepage <http://localhost:3030/Date/development> ;
foaf:workplaceHomepage <http://localhost:3030/Date/work> .
<http://localhost:3030/Date/data/example1> {
<http://localhost:3030/Date/data?graph=example1>
a foaf:PersonalProfileDocument ;
admin:errorReportsTo <mailto:leigh@ldodds.com> ;
admin:generatorAgent <http://www.ldodds.com/foaf/foaf-a-matic> ;
foaf:maker <http://localhost:3030/Date/data?graph=example1#me> ;
foaf:primaryTopic <http://localhost:3030/Date/data?graph=example1#me> .
<http://localhost:3030/Date/data?graph=example1#me>
a foaf:Person ;
foaf:family_name "V" ;
foaf:givenname "George" ;
foaf:homepage <http://localhost:3030/Date/betacoding.net> ;
foaf:knows [ a foaf:Person ;
rdfs:seeAlso <http://localhost:3030/Date/Charlie> ;
foaf:mbox_sha1sum "c7856d7a98889cee78a21245301a560e8f74d191" ;
foaf:name "John"
] ;
foaf:knows [ a foaf:Person ;
rdfs:seeAlso <http://localhost:3030/Date/Margaret> ;
foaf:mbox_sha1sum "a61c03838106b21fc083e7bc65e76c511c549d22" ;
foaf:name "Mary"
] ;
foaf:knows [ a foaf:Person ;
rdfs:seeAlso <http://localhost:3030/Date/John> ;
foaf:mbox_sha1sum "27f94c268f1a1c6004be361f4045d43c3745c0de" ;
foaf:name "Charlie"
] ;
foaf:mbox_sha1sum "b01b5835fa8ae7b7582968a7ecacb9b85503a6c9" ;
foaf:name "George V" ;
foaf:nick "jorch" ;
foaf:phone <tel:123456> ;
foaf:schoolHomepage <http://localhost:3030/Date/a school> ;
foaf:title "Dr" ;
foaf:workInfoHomepage <http://localhost:3030/Date/development> ;
foaf:workplaceHomepage <http://localhost:3030/Date/work> .
}
<http://localhost:3030/Date/data/test> {
<http://localhost:3030/Date/data?graph=test>
a foaf:PersonalProfileDocument ;
admin:errorReportsTo <mailto:leigh@ldodds.com> ;
admin:generatorAgent <http://www.ldodds.com/foaf/foaf-a-matic> ;
foaf:maker <http://localhost:3030/Date/data?graph=test#me> ;
foaf:primaryTopic <http://localhost:3030/Date/data?graph=test#me> .
<http://localhost:3030/Date/data?graph=test#me>
a foaf:Person ;
foaf:family_name "V" ;
foaf:givenname "George" ;
foaf:homepage <http://localhost:3030/Date/betacoding.net> ;
foaf:knows [ a foaf:Person ;
rdfs:seeAlso <http://localhost:3030/Date/Charlie> ;
foaf:mbox_sha1sum "c7856d7a98889cee78a21245301a560e8f74d191" ;
foaf:name "John"
] ;
foaf:knows [ a foaf:Person ;
rdfs:seeAlso <http://localhost:3030/Date/Margaret> ;
foaf:mbox_sha1sum "a61c03838106b21fc083e7bc65e76c511c549d22" ;
foaf:name "Mary"
] ;
foaf:knows [ a foaf:Person ;
rdfs:seeAlso <http://localhost:3030/Date/John> ;
foaf:mbox_sha1sum "27f94c268f1a1c6004be361f4045d43c3745c0de" ;
foaf:name "Charlie"
] ;
foaf:mbox_sha1sum "b01b5835fa8ae7b7582968a7ecacb9b85503a6c9" ;
foaf:name "George V" ;
foaf:nick "jorch" ;
foaf:phone <tel:123456> ;
foaf:schoolHomepage <http://localhost:3030/Date/a school> ;
foaf:title "Dr" ;
foaf:workInfoHomepage <http://localhost:3030/Date/development> ;
foaf:workplaceHomepage <http://localhost:3030/Date/work> .
}
@前缀rdf:。
@前缀admin:。
@前缀rdfs:。
@前缀foaf:。
foaf：个人档案文件；
管理员：errorReportsTo；
管理员：generatorAgent；
foaf:maker；
foaf：主要话题。
foaf：人；
foaf：姓“史密斯”；
foaf:givename“John”；
foaf：主页；
foaf：知道[一个foaf：人；
foaf:mbox_sha1sum“13add4a38db79b6645aca8dafe59051d971c38e6”；
名字“玛丽”
] ;
foaf：知道[一个foaf：人；
foaf:mbox_sha1sum“0072d6deb958659e205919ec647f3432cf75680d”；
名字“乔治”
] ;
foaf：知道[一个foaf：人；
foaf:mbox_sha1sum“D0ABA3272918DE44D341855558F06A507B8EFE49C”；
foaf：名称“劳拉”
] ;
foaf：知道[一个foaf：人；
foaf:mbox_sha1sum“13add4a38db79b6645aca8dafe59051d971c38e6”；
名字“玛丽”
] ;
foaf：知道[一个foaf：人；
foaf:mbox_sha1sum“0072d6deb958659e205919ec647f3432cf75680d”；
名字“乔治”
] ;
foaf：知道[一个foaf：人；
foaf:mbox_sha1sum“D0ABA3272918DE44D341855558F06A507B8EFE49C”；
foaf：名称“劳拉”
] ;
foaf：知道[一个foaf：人；
foaf:mbox_sha1sum“13add4a38db79b6645aca8dafe59051d971c38e6”；
名字“玛丽”
] ;
foaf：知道[一个foaf：人；
foaf:mbox_sha1sum“0072d6deb958659e205919ec647f3432cf75680d”；
名字“乔治”
] ;
foaf：知道[一个foaf：人；
foaf:mbox_sha1sum“D0ABA3272918DE44D341855558F06A507B8EFE49C”；
foaf：名称“劳拉”
] ;
foaf:mbox_sha1sum“77d0a8b957b9e316620d66631e1254e906148164”；
foaf：名称“约翰·史密斯”；
foaf:nick“Johnny”；
foaf：电话；
foaf：学校主页；
foaf：标题为“Dr”；
foaf：工作信息主页；
foaf:workplaceHomepage。
{
foaf：个人档案文件；
管理员：errorReportsTo；
管理员：generatorAgent；
foaf:maker；
foaf：主要话题。
foaf：人；
foaf：姓“V”；
foaf:givename“乔治”；
foaf：主页；
foaf：知道[一个foaf：人；
rdfs：参见；
foaf:mbox_sha1sum“c7856d7a98889cee78a21245301a560e8f74d191”；
名字“约翰”
] ;
foaf：知道[一个foaf：人；
rdfs：参见；
foaf:mbox_sha1sum“a61c03838106b21fc083e7bc65e76c511c549d22”；
名字“玛丽”
] ;
foaf：知道[一个foaf：人；
rdfs：参见；
foaf:mbox_sha1sum“27F94C268F1C6004BE361F4045D43C3745C0DE”；
名字叫“查理”
] ;
foaf:mbox_sha1sum“b01b5835fa8ae7b7582968a7ecacb9b85503a6c9”；
foaf：名称“乔治五世”；
foaf:nick“jorch”；
foaf：电话；
foaf：学校主页；
foaf：标题为“Dr”；
foaf：工作信息主页；
foaf:workplaceHomepage。
}
{
foaf：个人档案文件；
管理员：errorReportsTo；
管理员：generatorAgent；
foaf:maker；
foaf：主要话题。
foaf：人；
foaf：姓“V”；
foaf:givename“乔治”；
foaf：主页；
foaf：知道[一个foaf：人；
rdfs：参见；
foaf:mbox_sha1sum“c7856d7a98889cee78a21245301a560e8f74d191”；
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import com.hp.hpl.jena.query.DatasetAccessor;
import com.hp.hpl.jena.query.DatasetAccessorFactory;
import com.hp.hpl.jena.query.QueryExecution;
import com.hp.hpl.jena.query.QueryExecutionFactory;
import com.hp.hpl.jena.query.QuerySolution;
import com.hp.hpl.jena.query.ResultSet;
import com.hp.hpl.jena.query.ResultSetFormatter;
import com.hp.hpl.jena.rdf.model.Model;
import com.hp.hpl.jena.rdf.model.ModelFactory;
import com.hp.hpl.jena.rdf.model.RDFNode;
public class FusekiExample {
public static void execSelectAndPrint(String serviceURI, String query) {
QueryExecution q = QueryExecutionFactory.sparqlService(serviceURI,
query);
ResultSet results = q.execSelect();
ResultSetFormatter.out(System.out, results);
while (results.hasNext()) {
QuerySolution soln = results.nextSolution();
RDFNode x = soln.get("x");
System.out.println(x);
}
}
public static void execSelectAndProcess(String serviceURI, String query) {
QueryExecution q = QueryExecutionFactory.sparqlService(serviceURI,
query);
ResultSet results = q.execSelect();
while (results.hasNext()) {
QuerySolution soln = results.nextSolution();
// assumes that you have an "?x" in your query
RDFNode x = soln.get("x");
System.out.println(x);
}
}
public static void main(String[] argv) throws IOException {
execSelectAndPrint(
"http://localhost:3030/Date/data/",
"SELECT * WHERE { ?x <http://www.w3.org/1999/02/22-rdf-syntax-ns#> \"George V\" }");
execSelectAndProcess(
"http://localhost:3030/Date/data/" ,
"SELECT * WHERE { ?x <http://www.w3.org/1999/02/22-rdf-syntax-ns#> \"George V\" }");
}
}