Android构建xml信息

/*** 把persons集合里面的内容写到xml文件里面 * @param persons person的集合* @return*/public boolean savePersonToXml(List<Person> persons){try {XmlSerializer  serializer =  Xml.newSerializer();// /sdcard/person.xml // mount unmount 文件系统的权限 File file = new File(Environment.getExternalStorageDirectory(),"person.xml");FileOutputStream fos = new FileOutputStream(file);serializer.setOutput(fos, "utf-8");serializer.startDocument("utf-8", true);serializer.startTag(null, "persons");for(Person person:persons){serializer.startTag(null, "person");serializer.attribute(null, "id", person.getId()+"");serializer.startTag(null,"name");serializer.text(person.getName());serializer.endTag(null, "name");serializer.startTag(null,"age");serializer.text(person.getAge()+"");serializer.endTag(null, "age");serializer.endTag(null, "person");}serializer.endTag(null, "persons");serializer.endDocument();fos.flush();fos.close();return true;} catch (Exception e) {e.printStackTrace();return false;}}