Java调用yahoo!API获取天气数据

先把代码复制上来，以后再做补充

 package com.weather.test;

 import java.io.InputStream;
 import java.net.URL;
 import java.net.URLConnection;

 import javax.xml.parsers.DocumentBuilder;
 import javax.xml.parsers.DocumentBuilderFactory;

 import org.w3c.dom.Document;
 import org.w3c.dom.NamedNodeMap;
 import org.w3c.dom.Node;
 import org.w3c.dom.NodeList;

 public class Test {
     // Application ID
     final String appid = "雅虎Application ID 需申请";

     public String getWOEID(String name) throws Exception {
         URL url = new URL("http://where.yahooapis.com/v1/places.q(" + name
                 + ")?appid=" + appid);
         URLConnection connection = url.openConnection();
         Document doc = stringToDOM(connection.getInputStream());
         Node location = doc.getElementsByTagName("name").item(0);
         Node node = doc.getElementsByTagName("woeid").item(0);
         String woeid = node.getTextContent();
         System.out.println(location.getTextContent() + "\t"
                 + node.getNodeName() + ":" + woeid);
         return woeid;
     }

     public void getWeather(String woeid) {
         try {
             URL url = new URL("http://weather.yahooapis.com/forecastrss?u=c&w="
                     + woeid);
             URLConnection connection = url.openConnection();
             Document doc = stringToDOM(connection.getInputStream());
             Node lat = doc.getElementsByTagName("geo:lat").item(0);
             Node lon = doc.getElementsByTagName("geo:long").item(0);
             System.out.println("纬度：" + lat.getTextContent() + "\t\t经度："
                     + lon.getTextContent());
             Node node = doc.getElementsByTagName("yweather:astronomy").item(0);
             Node sunrise_node = node.getAttributes().item(0);
             Node sunset_node = node.getAttributes().item(1);
             System.out.println("今天天气情况：");
             System.out.println("日出时间：" + sunrise_node.getNodeValue() + "\t\t"
                     + "日落时间：" + sunset_node.getTextContent());

             NamedNodeMap today_map = doc
                     .getElementsByTagName("yweather:condition").item(0)
                     .getAttributes();
             System.out.println("温度："
                     + today_map.getNamedItem("temp").getNodeValue() + "℃\t\t"
                     + today_map.getNamedItem("text").getNodeValue()
                     + "\t\t发布时间："
                     + today_map.getNamedItem("date").getNodeValue() + "\n");

             NodeList list = doc.getElementsByTagName("yweather:forecast");
             System.out.println("未来五天天气情况：");
             for (int i = 0; i < list.getLength(); i++) {
                 NamedNodeMap map = list.item(i).getAttributes();
                 System.out.println(map.getNamedItem("day").getNodeValue()
                         + "\t最低气温：" + map.getNamedItem("low").getNodeValue()
                         + "℃" + "\t最高气温："
                         + map.getNamedItem("high").getNodeValue() + "℃" + "\t"
                         + map.getNamedItem("text").getNodeValue());
             }
         } catch (Exception e) {
             // TODO Auto-generated catch block
             e.printStackTrace();
         }
     }

     public Document stringToDOM(InputStream input) {
         try {
             DocumentBuilder db = DocumentBuilderFactory.newInstance()
                     .newDocumentBuilder();
             Document doc = db.parse(input);
             return doc;
         } catch (Exception e) {
             // TODO Auto-generated catch block
             e.printStackTrace();
             return null;
         }
     }

     public static void main(String[] args) {
         Test test = new Test();
         try {
             String woeid = test.getWOEID("meizhou");
             test.getWeather(woeid);
             System.out.println("From yahoo!");
         } catch (Exception e) {
             // TODO Auto-generated catch block
             e.printStackTrace();
         }
     }
 }