xml操作

/**
	 * 写xml到本地
	 */
	private void writeXmlToLocal() {
		List<person> listPerson = getListPerson();
		XmlSerializer xmlse = Xml.newSerializer();// 获得序列号对象
		try {
			File path = new File(Environment.getExternalStorageDirectory(),"person.xml");
			FileOutputStream fos = new FileOutputStream(path);
			xmlse.setOutput(fos,"utf-8");// 设置输出编码和类型
			xmlse.startDocument("utf-8",true);// 开始文档
			xmlse.startTag(null,"persons");

			for (person per : listPerson) {
				xmlse.startTag(null,"person");
				xmlse.attribute(null,"id",String.valueOf(per.getId()));
				xmlse.endTag(null,"person");

				xmlse.startTag(null,"name");
				xmlse.text(per.getName());
				xmlse.endTag(null,"name");

				xmlse.startTag(null,"age");
				xmlse.text(String.valueOf(per.getAge()));
				xmlse.endTag(null,"age");

			}
			xmlse.endTag(null,"persons");
			xmlse.endDocument();// 结束文档
		} catch (Exception e) {
			// TODO Auto-generated catch block

		}

	}

	private List<person> getListPerson() {
		List<person> list = new ArrayList<person>();
		for (int i = 0; i < 30; i++) {

			list.add(new person(i,"王" + i,18 + i));
		}
		return list;
	}

	private List<person> parserXmlFromLocal() {
		try {
			File path = new File(Environment.getExternalStorageDirectory(),"person.xml");
			FileInputStream fos = new FileInputStream(path);
			XmlPullParser xmlse = Xml.newPullParser();// 获得解析器
			xmlse.setInput(fos,"utf-8");// 获得解析对象和编码格式
			int envettype = xmlse.getEventType();// 获取事件类型
			List<person> list = null;
			person p = null;
			String id;
			while (envettype != XmlPullParser.END_DOCUMENT)// 循环事件类型
			{
				String tagname = xmlse.getName();
				switch (envettype) {
				case XmlPullParser.START_TAG:
					if ("persons".equals(tagname)) {
						list = new ArrayList<person>();
					} else if ("person".equals(tagname)) {
						p = new person();
						id = xmlse.getAttributeValue(null,"id");
						p.setId(Integer.parseInt(id));
					} else if ("name".equals(tagname)) {
						p.setName(xmlse.nextText());
					} else if ("age".equals(tagname)) {
						p.setAge(Integer.parseInt(xmlse.nextText()));
					}
					break;
				case XmlPullParser.END_TAG:
					if ("persons".equals(tagname)) {
						list.add(p);
					}

				}

				envettype = xmlse.next();// 获取下一个事件类型
			}
			return list;

		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		return null;
	}

（编辑：李大同）

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