我想按照模式解析数据
我的代码在
下面public class PriceXMLParsingExample extends Activity {
/** Create Object For SiteList Class */
PriceList sitesList = null;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
/** Create a new layout to display the view */
LinearLayout layout = new LinearLayout(this);
layout.setOrientation(1);
/** Create a new textview array to display the results */
TextView name[];
TextView website[];
TextView category[];
try {
/** Handling XML */
SAXParserFactory spf = SAXParserFactory.newInstance();
SAXParser sp = spf.newSAXParser();
XMLReader xr = sp.getXMLReader();
/** Send URL to parse XML Tags */
URL sourceUrl = new URL("http://www.xmlcharts.com/cache/precious-metals.php");
/** Create handler to handle XML Tags ( extends DefaultHandler ) */
PriceXMLHandler myXMLHandler = new PriceXMLHandler();
xr.setContentHandler(myXMLHandler);
xr.parse(new InputSource(sourceUrl.openStream()));
} catch (Exception e) {
System.out.println("XML Pasing Excpetion = " + e);
}
/** Get result from MyXMLHandler SitlesList Object */
sitesList = PriceXMLHandler.sitesList;
website = new TextView[sitesList.getWebsite().size()];
/** Set the result text in textview and add it to layout */
for (int i = 0; i < sitesList.getWebsite().size(); i++) {
website[i] = new TextView(this);
website[i].setText("Name = "+sitesList.getWebsite().get(i));
layout.addView(website[i]);
}
/** Set the layout view to display */
setContentView(layout);
}
}
PriceXMLHandler.java
public class PriceXMLHandler extends DefaultHandler {
Boolean currentElement = false;
String currentValue = null;
public static PriceList sitesList = null;
public static PriceList getSitesList() {
return sitesList;
}
public static void setSitesList(PriceList sitesList) {
PriceXMLHandler.sitesList = sitesList;
}
@Override
public void startElement(String uri, String localName, String qName,
Attributes attributes) throws SAXException {
currentElement = true;
if (localName.equals("prices"))
{
/** Start */
sitesList = new PriceList();
} else if (localName.equals("currency")) {
/** Get attribute value */
String attr = attributes.getValue("access");
sitesList.setCategory(attr);
}
else if (localName.equals("price")) {
String attr = attributes.getValue("access");
sitesList.setCategory(attr);
}
}
/** Called when tag closing ( ex:- <name>AndroidPeople</name>
* -- </name> )*/
@Override
public void endElement(String uri, String localName, String qName)
throws SAXException {
currentElement = false;
/** set value */
if (localName.equalsIgnoreCase("price"))
sitesList.setName(currentValue);
else if (localName.equalsIgnoreCase("currency"))
sitesList.setWebsite(currentValue);
}
/** Called to get tag characters ( ex:- <name>AndroidPeople</name>
* -- to get AndroidPeople Character ) */
@Override
public void characters(char[] ch, int start, int length)
throws SAXException {
if (currentElement) {
currentValue = new String(ch, start, length);
currentElement = false;
}
}
}
PriceList.java
public class PriceList {
/** Variables */
private ArrayList<String> currency = new ArrayList<String>();
private ArrayList<String> price = new ArrayList<String>();
private ArrayList<String> access = new ArrayList<String>();
/** In Setter method default it will return arraylist
* change that to add */
public ArrayList<String> getName() {
return currency;
}
public void setName(String name) {
this.currency.add(name);
}
public ArrayList<String> getWebsite() {
return price;
}
public void setWebsite(String website) {
this.price.add(website);
}
public ArrayList<String> getCategory() {
return access;
}
public void setCategory(String category) {
this.access.add(category);
}
}
当我运行上面的代码时，我只得到银价不是整个模式所以我怎么能解决它？
答案 0 :(得分：1)
我们走了......
<强> Price.java
package com.sof;
public class Price {
private String accessp;
private String pricevalue;
public String getAccessp() {
return accessp;
}
public void setAccessp(String access) {
this.accessp = access;
}
public String getPricevalue() {
return pricevalue;
}
public void setPricevalue(String pricevalue) {
this.pricevalue = pricevalue;
}
}
<强> Currency.java
package com.sof;
import java.util.ArrayList;
public class Currency {
private String accessc;
private ArrayList<Price> prices=new ArrayList<Price>();
public String getAccessc() {
return accessc;
}
public void setAccessc(String access) {
this.accessc = access;
}
public ArrayList<Price> getPrices() {
return prices;
}
public void setPrices(ArrayList<Price> price) {
this.prices = price;
}
}
<强> Prices.java
package com.sof;
import java.util.ArrayList;
public class Prices {
private ArrayList<Currency> currencies=new ArrayList<Currency>();
public ArrayList<Currency> getCurrencies() {
return currencies;
}
public void setCurrencies(ArrayList<Currency> currencies) {
this.currencies = currencies;
}
public void addCurrency(Currency currency)
{
this.currencies.add(currency);
}
}
<强> PriceXMLHandler.java
package com.sof;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;
public class PriceXMLHandler extends DefaultHandler {
Boolean currentElement = false;
String currentValue = null;
public Prices pricesList=new Prices();
public Currency currency=null;
public Price price=null;
boolean bprices = false;
boolean bcurrency = false;
boolean bprice = false;
public void startElement(String uri, String localName, String qName,
Attributes attributes) throws SAXException {
currentElement = true;
if (qName.equals("prices")) {
bprices=true;
// System.out.println(qName);
} else if (qName.equals("currency")) {
bcurrency=true;
currency=new Currency();
String attr = attributes.getValue("access");
currency.setAccessc(attr);
} else if (qName.equals("price")) {
bprice=true;
price=new Price();
//System.out.println(qName);
String attr = attributes.getValue("access");
price.setAccessp(attr);
}
}
public void endElement(String uri, String localName, String qName)
throws SAXException {
currentElement = false;
/** set value */
if (qName.equalsIgnoreCase("price"))
{
}
else if (qName.equalsIgnoreCase("currency"))
{
pricesList.getCurrencies().add(currency);
}
}
@Override
public void characters(char[] ch, int start, int length)
throws SAXException {
if (bprice) {
price.setPricevalue(new String(ch, start, length));
currency.getPrices().add(price);
bprice = false;
}
}
}
最后 的 Tester.java
package com.sof;
import java.io.FileInputStream;
import java.io.InputStream;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
public class Tester {
public static void main(String[] args) {
Prices sitesList;
try {
SAXParserFactory factory = SAXParserFactory.newInstance();
InputStream xmlInput = new FileInputStream("src/test.xml");
SAXParser saxParser = factory.newSAXParser();
PriceXMLHandler handler = new PriceXMLHandler();
saxParser.parse(xmlInput, handler);
sitesList = handler.pricesList;
for(Currency currency:sitesList.getCurrencies())
{
System.out.println(currency.getAccessc());
for(Price price:currency.getPrices())
{
System.out.println(price.getAccessp()+"\t"+price.getPricevalue());
}
}
} catch (Exception e) {
System.out.println("XML Pasing Excpetion = " + e);
e.printStackTrace();
}
}
}
OutPUT将
aud
gold 46.029190755073
palladium 26.341121448078
platinum 51.54654854858
silver 0.71732682032307
brl
gold 98.537459156603
palladium 56.390024161854
platinum 110.34879907615
silver 1.5356247003263
cad
gold 45.011219881119
palladium 25.758567334448
platinum 50.406557073289
silver 0.70146258725235
chf
gold 36.245806009071
palladium 20.742384613034
platinum 40.59046375746
silver 0.56486087085223
cny
gold 244.21529483123
palladium 139.75706796276
platinum 273.48852640726
silver 3.8058931308984
eur
gold 29.556496982569
palladium 16.914294251671
platinum 33.099330699618
silver 0.46061352921044
gbp
gold 24.402090312082
palladium 13.964582343362
platinum 27.327083364375
silver 0.3802863697071
inr
gold 2520.7993626485
palladium 1442.5776571022
platinum 2822.9587484909
silver 39.284570547915
jpy
gold 4148.483313
palladium 2374.052226
platinum 4645.74747
silver 64.650677
mxn
gold 537.06911300288
palladium 307.34849993124
platinum 601.44570550145
silver 8.3697773696277
rub
gold 1412.2617736624
palladium 808.1949364365
platinum 1581.5446434145
silver 22.008930223337
usd
gold 40.39419
palladium 23.11638
platinum 45.2361
silver 0.62951
zar
gold 448.9410405203
palladium 256.91545467956
platinum 502.75402980182
silver 6.9963743404171
如果您遇到任何问题，请告诉我......