为什么我的DOM解析器无法读取UTF-8

试试这个。 为我工作

        InputStream inputStream= new FileInputStream(completeFileName);        Reader reader = new InputStreamReader(inputStream,"UTF-8");        InputSource is = new InputSource(reader);        is.setEncoding("UTF-8");        documentBuilderFactory dbFactory = documentBuilderFactory.newInstance();        documentBuilder dBuilder = dbFactory.newdocumentBuilder();        document doc = dBuilder.parse(is);