Android xml数据的解析

最新推荐文章于 2025-09-25 09:18:24 发布

原创最新推荐文章于 2025-09-25 09:18:24 发布 · 244 阅读

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本文介绍了如何使用DOM方法解析XML文件获取数据，并演示了如何创建新的XML文档。通过实例展示了XML文档的结构及其操作方法。

xml格式，一种常用的数据格式，可以存放各种信息。比如城市名。

DOM方法解析：

xml 的读取。（ xml文件存放在assets中。）

		try {
			InputStream is =getResources().getAssets().open("strings.xml");
			DocumentBuilderFactory builderFactory=DocumentBuilderFactory.newInstance();
			DocumentBuilder builder = builderFactory.newDocumentBuilder();
			Document document = builder.parse(is);
			Element element =document.getDocumentElement();
			NodeList list =element.getElementsByTagName("string");
			for (int i = 0; i < list.getLength(); i++) {
				Element string = (Element) list.item(i);
				tv.append(string.getAttribute("name"));
				tv.append(string.getElementsByTagName("lb").item(0).getTextContent());
			}
			
			
			
		} catch (IOException e) {
			e.printStackTrace();
		} catch (ParserConfigurationException e) {
			e.printStackTrace();
		} catch (SAXException e) {
			e.printStackTrace();
		}

xml的生成。

try {
			DocumentBuilderFactory builderFactory=DocumentBuilderFactory.newInstance();
			DocumentBuilder builder = builderFactory.newDocumentBuilder();

			Document newxmlDocument = builder.newDocument();
			Element languages = newxmlDocument.createElement("languages");
			languages.setAttribute("category", "IT");
			
			Element lan1 = newxmlDocument.createElement("lan");
			lan1.setAttribute("id", "1");
			Element name1 = newxmlDocument.createElement("name");
			name1.setTextContent("java");
			Element ide1 = newxmlDocument.createElement("ide");
			ide1.setTextContent("eclipse");
			lan1.appendChild(name1);
			lan1.appendChild(ide1);
			languages.appendChild(lan1);
			
			Element lan2 = newxmlDocument.createElement("lan");
			lan2.setAttribute("id", "2");
			Element name2 = newxmlDocument.createElement("name");
			name2.setTextContent("swift");
			Element ide2 = newxmlDocument.createElement("ide");
			ide2.setTextContent("xcode");
			lan2.appendChild(name1);
			lan2.appendChild(ide1);
			languages.appendChild(lan2);
			
			newxmlDocument.appendChild(languages);
			
			TransformerFactory transformerFactory = TransformerFactory.newInstance();
			Transformer transformer = transformerFactory.newTransformer();
			transformer.setOutputProperty("encoding", "utf-8");
			StringWriter sWriter =new StringWriter();
			transformer.transform(new DOMSource(newxmlDocument), new StreamResult(sWriter));
			
			tv.setText(sWriter.toString());
		} catch (DOMException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (TransformerConfigurationException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IllegalArgumentException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (ParserConfigurationException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (TransformerFactoryConfigurationError e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (TransformerException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}