Question

所以我正在尝试在我的Android应用程序中创建一个xml文档。我正在使用编写java应用程序时使用的代码。我尝试如下所示：

public void createxml() throws SAXException, IOException {
        try {

            File file = new File(Environment.getExternalStorageDirectory()
                    + File.separator + "images" + File.separator + "newxml.xml");
            DocumentBuilderFactory docFactory = DocumentBuilderFactory
                    .newInstance();
            DocumentBuilder docBuilder = docFactory.newDocumentBuilder();
            Document doc = docBuilder.parse(file);

            // root elements
            // Document doc = docBuilder.newDocument();

            // Element rootElement = doc.get
            // doc.appendChild(rootElement);
            Node node = doc.getDocumentElement();

            // staff elements
            Element outfit = doc.createElement("outfit");
            node.appendChild(outfit);

            // set attribute to staff element
            /*
             * Attr attr = doc.createAttribute("id"); attr.setValue("1");
             * staff.setAttributeNode(attr);
             */
            // shorten way
            // staff.setAttribute("id", "1");

            // firstname elements


            if (savename.equals("none")) {

            } else {
                Element nameelement = doc.createElement("name");
                nameelement.appendChild(doc.createTextNode(savename));
                outfit.appendChild(nameelement);
            }
            if (hatloc.equals("none")) {

            } else {
                Element hatelement = doc.createElement("hat");
                hatelement.appendChild(doc.createTextNode(hatloc));
                outfit.appendChild(hatelement);
            }

            if (shirtloc.equals("none")) {

            } else {
                Element shirtelement = doc.createElement("shirt");
                shirtelement.appendChild(doc.createTextNode(shirtloc));
                outfit.appendChild(shirtelement);
            }
            if (pantloc.equals("none")) {

            } else {
                Element pantselement = doc.createElement("pants");
                pantselement.appendChild(doc.createTextNode(pantloc));
                outfit.appendChild(pantselement);
            }

            if (shoeloc.equals("none")) {

            } else {
                Element shoeselement = doc.createElement("shoes");
                shoeselement.appendChild(doc.createTextNode(shoeloc));
                outfit.appendChild(shoeselement);
            }

            if (acc1loc.equals("none")) {

            } else {
                Element accelement = doc.createElement("accessories");
                accelement.appendChild(doc.createTextNode(acc1loc));
                outfit.appendChild(accelement);
            }

            if (acc2loc.equals("none")) {

            } else {
                Element acc2element = doc.createElement("accessories2");
                acc2element.appendChild(doc.createTextNode(acc2loc));
                outfit.appendChild(acc2element);
            }

            if (beltloc.equals("none")) {

            } else {
                Element beltelement = doc.createElement("belt");
                beltelement.appendChild(doc.createTextNode(beltloc));
                outfit.appendChild(beltelement);
            }

            if (dressloc.equals("none")) {

            } else {
                Element dresselement = doc.createElement("dress");
                dresselement.appendChild(doc.createTextNode(dressloc));
                outfit.appendChild(dresselement);
            }

            if (jacketloc.equals("none")) {

            } else {
                Element jacketelement = doc.createElement("jacket");
                jacketelement.appendChild(doc.createTextNode(jacketloc));
                outfit.appendChild(jacketelement);
            }

            // write the content into xml file
            TransformerFactory transformerFactory = TransformerFactory
                    .newInstance();
            Transformer transformer = transformerFactory.newTransformer();
            DOMSource source = new DOMSource(doc);
            StreamResult result = new StreamResult(
                    new File(Environment.getExternalStorageDirectory()
                            + File.separator + "images" + File.separator
                            + "newxml.xml"));
            transformer.transform(source, result);

        } catch (ParserConfigurationException pce) {
            pce.printStackTrace();
        } catch (TransformerException tfe) {
            tfe.printStackTrace();
        }

        hatloc = "none";
        shirtloc = "none";
        pantloc = "none";
        shoeloc = "none";
        acc1loc = "none";
        acc2loc = "none";
        beltloc = "none";
        dressloc = "none";
        jacketloc = "none";
        savename = "none";

    }

一切正常，直到我进入下面的这一部分。我认为这是我创建的xml文件的部分。有谁知道这样做的方法适用于android？

代码符合TransformerFactory，Transformer，DOMSource，StreamResult和TransformerException。

    // write the content into xml file
    TransformerFactory transformerFactory = TransformerFactory.newInstance();
    Transformer transformer = transformerFactory.newTransformer();
    DOMSource source = new DOMSource(document);
    StreamResult result = new StreamResult(
            new File(Environment.getExternalStorageDirectory() + File.separator
                    + "images" + File.separator + "newxml.xml"));
    transformer.transform(source, result);

Answer 1

我认为Transfomer类不包含在您正在使用的Android API中。为避免使用Transformer，您应手动迭代xml树，否则可以依赖某些外部库。你应该看看here。

在android中创建一个xml文档

1 个答案: