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() + "	"
                + 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() + "		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() + "		"
                    + "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() + "℃		"
                    + today_map.getNamedItem("text").getNodeValue()
                    + "		发布时间："
                    + today_map.getNamedItem("date").getNodeValue() + "
");

            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()
                        + "	最低气温：" + map.getNamedItem("low").getNodeValue()
                        + "℃" + "	最高气温："
                        + map.getNamedItem("high").getNodeValue() + "℃" + "	"
                        + 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();
        }
    }
}