at org.apache.jena.riot.thrift.StreamRDF2Thrift.org.apache.jena.riot.RDFDataMgr.write$(RDFDataMgr.java:1331)
at org.apache.jena.riot.RDFDataMgr.write(RDFData
使用jena的RDFDataMgr.write方法,但它抛出一个异常:RDFDataMgr.write(System.out, ds, RDFFormat.RDFXML) ;
org.apache.jena.riot.RiotException: No dataset writer for RDF/XML/