Element hanyuNode = pinyinMappingDoc.xpathSelectElement(xpathQuery1);
if (null != hanyuNode) {
// find the node of target Pinyin system
String xpathQuery2 = "../" + targetPinyinSystem.getTagName() + "/text()";
String targetPinyinStrWithoutToneNumber = hanyuNode.xpathSelectString(xpathQuery2);
targetPinyinStr = targetPinyinStrWithoutToneNumber + toneNumberStr;
}
} catch (ParseException e) {
e.printStackTrace();