在android中创建一个xml文档
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，直到我到达下面的这一部分。 我认为这是我创建的xml文件编写的部分。 有没有人知道这样做的方法在android中有效？
代码打破了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);
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。 你应该看看这里 。