Question

解析了写入和读取xml文件时出现此错误。

这些是写和读的功能：

protected void write_xml_file(String file_name) {
    //if (file_name == null) file_name = "spells.xml";
    FileOutputStream fos;
    try {
        fos = openFileOutput(file_name, Context.MODE_APPEND);
        XmlSerializer serializer = Xml.newSerializer();
        serializer.setOutput(fos, "UTF-8");
        serializer.startDocument(null, Boolean.valueOf(true));
        serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true);
        serializer.startTag(null, "spells");
        for (int j = 0; j < 3; j++) {
            serializer.startTag(null, "spell");
            serializer.text("asd" +j);
            serializer.endTag(null, "spell");
        }
        serializer.endDocument();
        serializer.flush();
        fos.close();
    } catch (FileNotFoundException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }


}

protected void read_xml_file(String file_name,Context context) {
    try {
        String path=context.getFilesDir() + File.separator + file_name;
        File fXmlFile = new File(context.getFilesDir() + File.separator + file_name);
        DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
        DocumentBuilder dBuilder = null;
        dBuilder = dbFactory.newDocumentBuilder();
        Document doc = dBuilder.parse(fXmlFile);
        doc.getDocumentElement().normalize();
        NodeList nList = doc.getElementsByTagName("spells");


        for (int temp = 0; temp < nList.getLength(); temp++) {

            Node nNode = nList.item(temp);

            //System.out.println("\nCurrent Element :" + nNode.getNodeName());

            if (nNode.getNodeType() == Node.ELEMENT_NODE) {

                Element eElement = (Element) nNode;

                //System.out.println("spell id : " + eElement.getAttribute("id"));
                //System.out.println("name : " + eElement.getElementsByTagName("firstname").item(0).getTextContent());
                //System.out.println("description : " + eElement.getElementsByTagName("firstname").item(0).getTextContent());
                //System.out.println("school : " + eElement.getElementsByTagName("lastname").item(0).getTextContent());

            }
        }


    } catch (ParserConfigurationException e) {
        e.printStackTrace();
    } catch (SAXException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }
}

这是错误：

org.xml.sax.SAXParseException：处理指令不能启动 with xml（position：unknown @ 6:10 in java.io.InputStreamReader@b64434e）

Answer 1

org.xml.sax.SAXParseException：处理指令不能以xml开头（位置：java.io.InputStreamReader@b64434e中的未知@ 6:10）

您的XML文件中似乎有<?xml version="1.0" encoding="utf-8"?>。删除它，然后尝试！

Answer 2

当您在流中加载几次（至少两次）文件然后尝试解析它时，通常会发生此错误。检查是否没有两次在fXmlFile中加载文件

org.xml.sax.SAXParseException：处理指令不能以xml

2 个答案: