java使用dom解析google天气格式的xml文档
此段代码旨在解析类似google天气格式的xml文档，如需解析其它格式的稍做改动即可。
google天气预报xml格式如下：
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<?xml version="1.0"?>
<xml_api_reply version="1">
<weather module_id="0" tab_id="0" mobile_row="0" mobile_zipped="1"
row="0" section="0">
<forecast_information>
<city data="" />
<postal_code data="" />
<latitude_e6 data="30670000" />
<longitude_e6 data="104019996" />
<forecast_date data="2011-11-16" />
<current_date_time data="2011-11-16 22:00:00 +0000" />
<unit_system data="SI" />
</forecast_information>
<current_conditions>
<condition data="多云" />
<temp_f data="59" />
<temp_c data="15" />
<humidity data="湿度： 72%" />
<icon data="/ig/images/weather/cn_cloudy.gif" />
<wind_condition data="风向： 东、风速：2 米/秒" />
</current_conditions>
<forecast_conditions>
<day_of_week data="周三" />
<low data="12" />
<high data="17" />
<icon data="/ig/images/weather/mostly_sunny.gif" />
<condition data="以晴为主" />
</forecast_conditions>
<forecast_conditions>
<day_of_week data="周四" />
<low data="11" />
<high data="18" />
<icon data="/ig/images/weather/mostly_sunny.gif" />
<condition data="以晴为主" />
</forecast_conditions>
<forecast_conditions>
<day_of_week data="周五" />
<low data="11" />
<high data="19" />
<icon data="/ig/images/weather/mostly_sunny.gif" />
<condition data="以晴为主" />
</forecast_conditions>
<forecast_conditions>
<day_of_week data="周六" />
<low data="8" />
<high data="19" />
<icon data="/ig/images/weather/mostly_sunny.gif" />
<condition data="以晴为主" />
</forecast_conditions>
</weather>
</xml_api_reply>
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java解析代码如下所示：
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package dsh.bikegis.dao.impl;
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import java.io.FileNotFoundException;
import java.io.IOException;
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import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
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import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.SAXException;
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import dsh.bikegis.dao.XmlDocument;
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/**
?* 解析Google天氣XML文档
?*?
?* @author NanGuoCan
?*?
?*/
public class WeatherParse implements XmlDocument {
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/**
* 解析傳來的google天氣xml
* @param fileName
* 文件全路径名称
*/
@Override
public void parserXml(String fileName) {
try {
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
Document document = db.parse(fileName);
NodeList xml=document.getChildNodes();
NodeList xml_api_reply = ?xml.item(0).getChildNodes();
Node weather=xml_api_reply.item(0);
NodeList weathers=weather.getChildNodes();
//解析城市及時間預測信息
Node forecast_information=weathers.item(0);
NodeList informationNode=forecast_information.getChildNodes();
for(int i=0;i<informationNode.getLength();i++){
System.out.println(informationNode.item(i).getNodeName()+":"+informationNode.item(i).getAttributes().item(0));
}
//解析當前天氣
Node current_conditions=weathers.item(1);
NodeList currentInfo=current_conditions.getChildNodes();
for(int i=0;i<currentInfo.getLength();i++){
System.out.println(currentInfo.item(i).getNodeName()+":"+currentInfo.item(i).getAttributes().item(0));
}
//解析本周未來幾天天氣
for (int i = 2; i < weathers.getLength(); i++) {
Node forecast_conditions = weathers.item(i);
NodeList forecast_conditionsInfo = forecast_conditions.getChildNodes();
for (int j = 0; j < forecast_conditionsInfo.getLength(); j++) {
System.out.println(forecast_conditionsInfo.item(j).getNodeName()
+ ":" + forecast_conditionsInfo.item(j).getAttributes().item(0));
}
}
System.out.println("解析完毕");
} catch (FileNotFoundException e) {
System.out.println(e.getMessage());
} catch (ParserConfigurationException e) {
System.out.println(e.getMessage());
} catch (SAXException e) {
System.out.println(e.getMessage());
} catch (IOException e) {
System.out.println(e.getMessage());
}
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}
}
