如何从android中的xml标记获得价值
问题描述：
我已经做了一个解析器，因为我得到了所有的XML标记的值，但我想获得一些值作为参数在标签内，我不知道如何从标签得到它，示例XML是如下： sample.xml中如何从android中的xml标记获得价值
<ChargeableRateInfo averageBaseRate="226.7" averageRate="192.69"
commissionableUsdTotal="192.69" currencyCode="USD" maxNightlyRate="192.69"
nightlyRateTotal="192.69" surchargeTotal="46.8" total="239.49">
<NightlyRatesPerRoom size="1"><NightlyRate baseRate="226.7"
rate="192.69" promo="true"/></NightlyRatesPerRoom>
，我想“averageRate”的价值，“nightlyRateTotal”，“总”，但我不知道如何获得该数据？我的解析器如下：
while (eventType != XmlPullParser.END_DOCUMENT && !done) {
tagName = parser.getName();
switch (eventType) {
case XmlPullParser.START_DOCUMENT:
break;
case XmlPullParser.START_TAG:
if (tagName.equals(ITEM)) {
rssFeed = new RSSFeed_SelectedHotelResult();
}
if (tagName.equals(DESCRIPTION)) {
name = parser.nextText().toString();
hotel_name_list.add(name);
System.out
.println(":::::::::::::::::DescriptionL:lLLLLLLLLLL"
+ name);
}
if (tagName.equals(OFFER)) {
offer = parser.nextText().toString();
hotel_offer_list.add(offer);
System.out.println(":::::::::::::::::Offer" + offer);
}
if (tagName.equals(HOTEL_IMG)) {
thumbNailUrl = parser.nextText().toString();
hotel_image_list.add(thumbNailUrl);
}
if (tagName.equals(HOTEL_LOCATION)) {
locationDescription = parser.nextText().toString();
hotel_lOCATION_DESC.add(locationDescription);
System.out
.println("::::::::;Location deccription:::::::::::;;"
+ locationDescription);
}
if (tagName.equals(HOTEL_RATE_IMG)) {
tripAdvisorRatingUrl = parser.nextText().toString();
}
if (tagName.equals(HOTEL_PRICE)) {
lowRate = parser.nextText().toString();
}
if (tagName.equals(HOTEL_RATING)) {
hotelRating = parser.nextText().toString();
hotel_rate_list.add(hotelRating);
}
if (tagName.equals(HOTEL_ADDRESS)) {
address1 = parser.nextText().toString();
hotel_address_list.add(address1);
System.out
.println(":::::::::::::hotel address:::::::::::"
+ address1);
}
if (tagName.equals(DESTINATION_ID)) {
destinationId = parser.nextText().toString();
dest_id_list.add(destinationId);
System.out
.println("*********Here Is DestinationID:************"
+ destinationId);
}
if (tagName.equals(CITY)) {
city = parser.nextText().toString();
city_list.add(city);
System.out.println("*********Here Is City:************"
+ city);
}
if (tagName.equals(HOTEL_ID)) {
hotelId = parser.nextText().toString();
hotel_id_list.add(hotelId);
System.out
.println("*********Here Is HotelID:************"
+ hotelId);
}
if (tagName.equals(LATITUDE)) {
latitude = parser.nextText().toString();
latitude_list.add(latitude);
System.out
.println("*********Here Is Latitude:************"
+ hotelId);
}
if (tagName.equals(LONGITUDE)) {
longitude = parser.nextText().toString();
longitude_list.add(longitude);
System.out
.println("*********Here Is Longitude:************"
+ hotelId);
}
break;
case XmlPullParser.END_TAG:
if (tagName.equals(CHANNEL)) {
done = true;
} else if (tagName.equals(ITEM)) {
rssFeed = new RSSFeed_SelectedHotelResult(name,
thumbNailUrl, tripAdvisorRatingUrl,
hotelRating, locationDescription, lowRate,
destinationId, city, hotelId, latitude,
longitude, offer);
rssFeedList.add(rssFeed);
}
break;
}
eventType = parser.next();
}
} catch (Exception e) {
e.printStackTrace();
}
return rssFeedList;
}
答
尝试... parser.getAttributeValue(null, "averageRate");
+0
非常感谢你..工作.. :) – 2015-03-02 05:58:16
答
您可以使用DOM Parser来代替。
例：
Document doc = parser.getDomElement(YOUR_XML);
String averageBaseRate= doc.getElementsByTagName("ChargeableRateInfo ").item(0).getAttributes().getNamedItem("averageBaseRate").getNodeValue();
String averageRate= doc.getElementsByTagName("ChargeableRateInfo ").item(1).getAttributes().getNamedItem("averageRate").getNodeValue();
...
答
TAG_ITEM = “ChargeableRateInfo”;
XmlPullParserFactory factory = XmlPullParserFactory.newInstance();
factory.setNamespaceAware(true);
XmlPullParser xpp = factory.newPullParser();
xpp.setInput(new StringReader ("your_xml/"));
int eventType = xpp.getEventType();
while (eventType != XmlPullParser.END_DOCUMENT) {
if(eventType == XmlPullParser.START_DOCUMENT) {
System.out.println("Start document");
} else if(eventType == XmlPullParser.END_DOCUMENT) {
System.out.println("End document");
} else if(eventType == XmlPullParser.START_TAG) {
System.out.println("Start tag "+xpp.getName());
// For Attribute
String tag = parser.getName();
if (TAG_ITEM.equals(tag)) {
Log.d(LOG_NAME, parser.getAttributeValue(null, "averageBaseRate"););
Log.d(LOG_NAME, parser.getAttributeValue(null, "averageRate"););
Log.d(LOG_NAME, parser.getAttributeValue(null, "commissionableUsdTotal"););
Log.d(LOG_NAME, parser.getAttributeValue(null, "currencyCode"););
}
} else if(eventType == XmlPullParser.END_TAG) {
System.out.println("End tag "+xpp.getName());
} else if(eventType == XmlPullParser.TEXT) {
System.out.println("Text "+xpp.getText());
}
eventType = xpp.next();
}
你解析正确吗？ CITY，HOTEL_ID和所有的价值是什么？ – 2015-03-02 04:57:44
@ Tushar-Hello tushar，谢谢你的回应，是的，我正确地获取了所有的值，但只是想知道如何获取标签内xml参数的值。 – 2015-03-02 05:01:12
您可以试试[this]（http://stackoverflow.com/a/15401895/3531756）方法。 – 2015-03-02 05:05:48