Apache Jena无法在生成的XML中显示UTF-8编码

Question

我希望Apache Jena生成一个XML

<?xml version="1.0" encoding="UTF-8"?>

我的代码:

RDFWriter writer = myJenaModel.getWriter("RDF/XML-ABBREV");
writer.setProperty("showXmlDeclaration", "true");
FileOutputStream fos = new FileOutputStream(filepath);
OutputStreamWriter osw = new OutputStreamWriter(fos, "UTF-8");
writer.write(myJenaModel, osw, null);

只生成

<?xml version="1.0"?>

但是,如果我改变了

OutputStreamWriter osw = new OutputStreamWriter(fos, "UTF-8"); 

至

OutputStreamWriter osw = new OutputStreamWriter(fos, "ISO-8859-1");

它会产生

<?xml version="1.0" encoding="ISO-8859-1"?>

正如所料.

我试图按照Jena文档中的说明进行操作,但没有成功.

有谁知道如何让Jena使用UTF-8编码声明生成我的RDF/XML？

提前致谢.

Answer 1

encoding="UTF-8" 是XML的默认值,因此没有必要.