如何将JENA Sparql Query ResultSet保存为JSON？

Question

如何将JENA ResultSet存储为JSON格式的字符串？我目前只能将ResultSet输出到System.out控制台，但我无法将其保存到java String。这是我所在的一个例子：

QueryExecution qexec = QueryExecutionFactory.sparqlService(endpoint, query);
ResultSet results = qexec.execSelect();
// the following prints out JSON in the System.out console:
ResultSetFormatter.outputAsJSON(System.out, results);
// but how do I save it as a String?
// ie.  
String json = ResultSetFormatter.outputAsJSON(System.out, results);
// obviously that doesn't work, but how would one get the equivalent working version?

我希望能够将JSON变量发送到另一个方法来执行某些工作。

提前致谢！

Answer 1

尝试写入SELECT ... WHERE ...并将其中的字节转换为ByteArrayOutputStream

String