免费的天气Web Service接口
在android应用当中很多时候需要获取天气的信息,这里提供怎么获取天气信息：
1.
官网：
2.
网站： ，此网站提供各种webservice接口
3.更多WS接口（天气预报，IP地址搜索，火车时刻表，汇率等等）
转至：
在用网上的Web Service的接口的时候都要引入一个jar包：
4.用android 的一个例子来获取天气数据： 程序一定要注意是否打开了联网的权限
MainActivity：
1 public class MainActivity extends Activity { 2 3 Button btn = null; 4 5 TextView text = null; 6 7 @Override 8 protected void onCreate(Bundle savedInstanceState) { 9 super.onCreate(savedInstanceState);10 setContentView(R.layout.activity_main);11 12 initView();13 14 }15 16 private void initView() {17 final WeatherUtil weatherutil = new WeatherUtil();18 19 btn = (Button) findViewById(R.id.btn);20 text = (TextView) findViewById(R.id.weatherInfo);21 btn.setOnClickListener(new Button.OnClickListener() {22 23 @Override24 public void onClick(View v) {25 String weather = "";26 int provinceCode = weatherutil.getProvinceCode("辽宁"); // 311927 int cityCode = weatherutil.getCityCode(provinceCode, "大连"); // 97428 List weatherList = weatherutil.getWeather(cityCode);29 for (String str : weatherList) {30 31 weather = weather + str;32 }33 34 text.setText(weather);35 36 }37 });38 }39 40 @Override41 public boolean onCreateOptionsMenu(Menu menu) {42 getMenuInflater().inflate(R.menu.main, menu);43 return true;44 }45 46 }
获取天气的帮助类：
WeatherUtil.class:
1 public class WeatherUtil { 2 3 private static String SERVICES_HOST = "www.webxml.com.cn"; 4 private static String WEATHER_SERVICES_URL = "http://webservice.webxml.com.cn/WebServices/WeatherWS.asmx/"; 5 private static String PROVINCE_CODE_URL = WEATHER_SERVICES_URL 6 + "getRegionProvince"; 7 private static String CITY_CODE_URL = WEATHER_SERVICES_URL 8 + "getSupportCityString?theRegionCode="; 9 private static String WEATHER_QUERY_URL = WEATHER_SERVICES_URL 10 + "getWeather?theUserID=&theCityCode="; 11 12 public WeatherUtil() { 13 } 14 15 public static int getProvinceCode(String provinceName) { 16 Document document; 17 DocumentBuilderFactory documentBF = DocumentBuilderFactory 18 .newInstance(); 19 documentBF.setNamespaceAware(true); 20 int provinceCode = 0; 21 try { 22 DocumentBuilder documentB = documentBF.newDocumentBuilder(); 23 InputStream inputStream = getSoapInputStream(PROVINCE_CODE_URL); // 具体webService相关 24 document = documentB.parse(inputStream); 25 NodeList nodeList = document.getElementsByTagName("string"); // 具体webService相关 26 int len = nodeList.getLength(); 27 for (int i = 0; i < len; i++) { 28 Node n = nodeList.item(i); 29 String result = n.getFirstChild().getNodeValue(); 30 String[] address = result.split(","); 31 String pName = address[0]; 32 String pCode = address[1]; 33 if (pName.equalsIgnoreCase(provinceName)) { 34 provinceCode = Integer.parseInt(pCode); 35 } 36 } 37 inputStream.close(); 38 } catch (DOMException e) { 39 e.printStackTrace(); 40 } catch (ParserConfigurationException e) { 41 e.printStackTrace(); 42 } catch (SAXException e) { 43 e.printStackTrace(); 44 } catch (IOException e) { 45 e.printStackTrace(); 46 } 47 return provinceCode; 48 } 49 50 public static int getCityCode(int provinceCode, String cityName) { 51 Document doc; 52 DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance(); 53 dbf.setNamespaceAware(true); 54 int cityCode = 0; 55 try { 56 DocumentBuilder db = dbf.newDocumentBuilder(); 57 InputStream is = getSoapInputStream(CITY_CODE_URL + provinceCode); // 具体webService相关 58 doc = db.parse(is); 59 NodeList nl = doc.getElementsByTagName("string"); // 具体webService相关 60 int len = nl.getLength(); 61 for (int i = 0; i < len; i++) { 62 Node n = nl.item(i); 63 String result = n.getFirstChild().getNodeValue(); 64 String[] address = result.split(","); 65 String cName = address[0]; 66 String cCode = address[1]; 67 if (cName.equalsIgnoreCase(cityName)) { 68 cityCode = Integer.parseInt(cCode); 69 } 70 } 71 is.close(); 72 } catch (DOMException e) { 73 e.printStackTrace(); 74 } catch (ParserConfigurationException e) { 75 e.printStackTrace(); 76 } catch (SAXException e) { 77 e.printStackTrace(); 78 } catch (IOException e) { 79 e.printStackTrace(); 80 } 81 return cityCode; 82 } 83 84 public static InputStream getSoapInputStream(String url) { 85 InputStream inputStream = null; 86 try { 87 URL urlObj = new URL(url); 88 URLConnection urlConn = urlObj.openConnection(); 89 urlConn.setRequestProperty("Host", SERVICES_HOST); // 具体webService相关 90 urlConn.connect(); 91 inputStream = urlConn.getInputStream(); 92 } catch (MalformedURLException e) { 93 e.printStackTrace(); 94 } catch (IOException e) { 95 e.printStackTrace(); 96 } 97 return inputStream; 98 } 99 100 public static List getWeather(int cityCode) {101 List weatherList = new ArrayList ();102 Document document;103 DocumentBuilderFactory documentBF = DocumentBuilderFactory104 .newInstance();105 documentBF.setNamespaceAware(true);106 try {107 DocumentBuilder documentB = documentBF.newDocumentBuilder();108 InputStream inputStream = getSoapInputStream(WEATHER_QUERY_URL109 + cityCode);110 document = documentB.parse(inputStream);111 NodeList nl = document.getElementsByTagName("string");112 int len = nl.getLength();113 for (int i = 0; i < len; i++) {114 Node n = nl.item(i);115 String weather = n.getFirstChild().getNodeValue();116 System.out.println(i + "----->>>>" + weather);117 118 weatherList.add(weather);119 }120 inputStream.close();121 } catch (UnsupportedEncodingException e) {122 e.printStackTrace();123 } catch (DOMException e) {124 e.printStackTrace();125 } catch (ParserConfigurationException e) {126 e.printStackTrace();127 } catch (SAXException e) {128 e.printStackTrace();129 } catch (IOException e) {130 e.printStackTrace();131 }132 return weatherList;133 }134 135 }
源码下载：