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
1 package com.weather.test; 2 3 import java.io.InputStream; 4 import java.net.URL; 5 import java.net.URLConnection; 6 7 import javax.xml.parsers.DocumentBuilder; 8 import javax.xml.parsers.DocumentBuilderFactory; 9 10 import org.w3c.dom.Document; 11 import org.w3c.dom.NamedNodeMap; 12 import org.w3c.dom.Node; 13 import org.w3c.dom.NodeList; 14 15 public class Test { 16 // Application ID 17 final String appid = "雅虎Application ID 需申请"; 18 19 public String getWOEID(String name) throws Exception { 20 URL url = new URL("http://where.yahooapis.com/v1/places.q(" + name 21 + ")?appid=" + appid); 22 URLConnection connection = url.openConnection(); 23 Document doc = stringToDOM(connection.getInputStream()); 24 Node location = doc.getElementsByTagName("name").item(0); 25 Node node = doc.getElementsByTagName("woeid").item(0); 26 String woeid = node.getTextContent(); 27 System.out.println(location.getTextContent() + "\t" 28 + node.getNodeName() + ":" + woeid); 29 return woeid; 30 } 31 32 public void getWeather(String woeid) { 33 try { 34 URL url = new URL("http://weather.yahooapis.com/forecastrss?u=c&w=" 35 + woeid); 36 URLConnection connection = url.openConnection(); 37 Document doc = stringToDOM(connection.getInputStream()); 38 Node lat = doc.getElementsByTagName("geo:lat").item(0); 39 Node lon = doc.getElementsByTagName("geo:long").item(0); 40 System.out.println("纬度：" + lat.getTextContent() + "\t\t经度：" 41 + lon.getTextContent()); 42 Node node = doc.getElementsByTagName("yweather:astronomy").item(0); 43 Node sunrise_node = node.getAttributes().item(0); 44 Node sunset_node = node.getAttributes().item(1); 45 System.out.println("今天天气情况："); 46 System.out.println("日出时间：" + sunrise_node.getNodeValue() + "\t\t" 47 + "日落时间：" + sunset_node.getTextContent()); 48 49 NamedNodeMap today_map = doc 50 .getElementsByTagName("yweather:condition").item(0) 51 .getAttributes(); 52 System.out.println("温度：" 53 + today_map.getNamedItem("temp").getNodeValue() + "℃\t\t" 54 + today_map.getNamedItem("text").getNodeValue() 55 + "\t\t发布时间：" 56 + today_map.getNamedItem("date").getNodeValue() + "\n"); 57 58 NodeList list = doc.getElementsByTagName("yweather:forecast"); 59 System.out.println("未来五天天气情况："); 60 for (int i = 0; i < list.getLength(); i++) { 61 NamedNodeMap map = list.item(i).getAttributes(); 62 System.out.println(map.getNamedItem("day").getNodeValue() 63 + "\t最低气温：" + map.getNamedItem("low").getNodeValue() 64 + "℃" + "\t最高气温：" 65 + map.getNamedItem("high").getNodeValue() + "℃" + "\t" 66 + map.getNamedItem("text").getNodeValue()); 67 } 69 } catch (Exception e) { 70 // TODO Auto-generated catch block 71 e.printStackTrace(); 72 } 73 } 74 75 public Document stringToDOM(InputStream input) { 76 try { 77 DocumentBuilder db = DocumentBuilderFactory.newInstance() 78 .newDocumentBuilder(); 79 Document doc = db.parse(input); 80 return doc; 81 } catch (Exception e) { 82 // TODO Auto-generated catch block 83 e.printStackTrace(); 84 return null; 85 } 86 } 87 88 public static void main(String[] args) { 89 Test test = new Test(); 90 try { 91 String woeid = test.getWOEID("meizhou"); 92 test.getWeather(woeid); 93 System.out.println("From yahoo!"); 94 } catch (Exception e) { 95 // TODO Auto-generated catch block 96 e.printStackTrace(); 97 } 98 } 99 }
