思路:通过访问开放航班城市查询webservice获取城市对3字码
/** * 利用免费航班城市webservice获取随机城市对 */ public List<String> randomCity(){ String endpoint = "http://webservice.webxml.com.cn/webservices/DomesticAirline.asmx?wsdl"; String nameSpace = "http://WebXml.com.cn/"; String operationName = "getDomesticCity"; Service service = new Service(); Call call; String FOCElementBody = null; List<String> citys = new ArrayList<String>(); try { call = (Call) service.createCall(); call.setUseSOAPAction(true); call.setSOAPActionURI(nameSpace + operationName); call.setTargetEndpointAddress(endpoint); call.setReturnType(org.apache.axis.encoding.XMLType.XSD_SCHEMA); call.setOperationName(operationName); Object res = (Object) call.invoke(new Object[] {}); Schema schema = (Schema) res; MessageElement[] msgele = schema.get_any(); FOCElementBody = msgele[1].getChildren().toString().replace("[", "").replace("]", ""); StringReader stringReader = new StringReader(FOCElementBody); InputSource inputSource = new InputSource(stringReader); DocumentBuilderFactory docBuilderFac = DocumentBuilderFactory .newInstance(); DocumentBuilder docBuilder = docBuilderFac.newDocumentBuilder(); Document document = docBuilder.parse(inputSource); Node node = document.getDocumentElement(); NodeList temp = node.getChildNodes(); for(int i=0;i<temp.getLength();i++){ NodeList tmp = temp.item(i).getChildNodes(); citys.add(tmp.item(2).getTextContent()); } } catch (ServiceException e) { e.printStackTrace(); } catch (RemoteException e) { e.printStackTrace(); } catch (ParserConfigurationException e) { e.printStackTrace(); } catch (SAXException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } String citytemp1 = citys.get(rand.nextInt(citys.size())); String citytemp2 = null; do{ citytemp2 = citys.get(rand.nextInt(citys.size())); }while(citytemp1==citytemp2); citys.clear(); citys.add(citytemp1); citys.add(citytemp2); return citys; }