天气预报
来源：互联网 发布：理财软件哪个好 编辑：程序博客网 时间：2024/06/05 15:08
调用webservice的事例package BigMeat.Nada.weather;import java.io.*;import java.net.*;import java.util.ArrayList;import java.util.List;import javax.xml.parsers.DocumentBuilder;import javax.xml.parsers.DocumentBuilderFactory;import org.w3c.dom.Document;import org.w3c.dom.Node;import org.w3c.dom.NodeList;public class Weather {private static String _url = "http://www.webxml.com.cn/WebServices/WeatherWebService.asmx/getWeatherbyCityName?theCityName=";private static List<String> msg=new ArrayList<String>(); /** * @param cityName * @return */ private static InputStream getSoapInputStream(String cityName) { try { /* * URL url = new URL(_url + cityName); HttpURLConnection hc = * (HttpURLConnection) url.openConnection(); hc.connect(); * InputStream urlStream = hc.getInputStream(); return urlStream; */ return new URL(_url + cityName).openStream(); } catch (Exception ex) { return null; } } /** * 用W3C DOM对返回的XML进行解释 * @param cityName * @return */ public static List<String> getWeatherByCityName(String cityName) { try { Document doc; DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance(); dbf.setNamespaceAware(true); DocumentBuilder db = dbf.newDocumentBuilder(); InputStream is = getSoapInputStream(cityName); if (is == null){ return null; } doc = db.parse(is); NodeList nl = doc.getElementsByTagName("string"); if ("查询结果为空！".equals(nl.item(0).getFirstChild().getNodeValue())) { return null; } for (int i = 0; i < nl.getLength(); i++) { Node n=nl.item(i); msg.add(n.getFirstChild().getNodeValue()); } is.close(); return msg; } catch (Exception e) { e.printStackTrace(); return null; } } /** * @param args */ public static void main(String[] args) { List<String>list=getWeatherByCityName("suzhou"); }}controller层调用情况！package BigMeat.Nada.Controller;import java.util.ArrayList;import java.util.List;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.PathVariable;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import org.springframework.web.bind.annotation.ResponseBody;import BigMeat.Nada.util.EncodingTool;import BigMeat.Nada.weather.Weather;@Controllerpublic class WeatherController {private static List<String> list_weather;@RequestMapping(value="getWeather={city}",method = RequestMethod.GET)public @ResponseBody List<String> getWeather(@PathVariable String city) {Weather weather=new Weather();list_weather=weather.getWeatherByCityName(EncodingTool.encodeStr(city));if (list_weather==null) {list_weather=new ArrayList<String>();list_weather.add("查询结果为空！请确认是否输入正确");}return list_weather;}}
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