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 }