Java method for accessing XML data returned by WebService

Java method for accessing XML data returned by WebService

This example describes how Java accesses WebService to return XML data. Share it with you for your reference. The details are as follows:

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Import java. io. IOException; Import java. io. InputStream; Import java.net. MalformedURLException; Import java.net. URL; Import java.net. URLConnection; Import java. io. FileNotFoundException; Import java. io. FileOutputStream; Import java. io. PrintWriter; Import org. w3c. dom. Document; Import org. w3c. dom. DOMException; Import org. xml. sax. SAXException; Import javax. xml. parsers. DocumentBuilder; Import javax. xml. parsers. DocumentBuilderFactory; Import javax. xml. parsers. ParserConfigurationException; Import javax. xml. transform. OutputKeys; Import javax. xml. transform. Transformer; Import javax. xml. transform. TransformerConfigurationException; Import javax. xml. transform. TransformerException; Import javax. xml. transform. TransformerFactory; Import javax. xml. transform. dom. DOMSource; Import javax. xml. transform. stream. StreamResult; /*** * @ Author xuechong * 6/11/2010 16: 58 * DomXMLString. java * Overview: access the xml format data returned by the remote WebService Interface in java mode is saved locally. */ Public class DomXMLString { Private static String SERVICES_HOST = "www.webxml.com.cn "; // Remote WebService Interface url Private static String NETDATA_URL = "http://webservice.webxml.com.cn/WebServices/WeatherWS.asmx/getRegionProvince "; // Access the absolute path of the xml format data returned by the remote WebService Interface stored locally Private static String LOCAL_PC_SAVEFILE_URL = "E: dataTest/netDataToLocalFile. xml "; Private DomXMLString (){} Public static void main (String [] args) throws Exception { Document document = getProvinceCode (NETDATA_URL ); HelloOK (document, LOCAL_PC_SAVEFILE_URL ); } /* Return a Document Object */ Public static Document getProvinceCode (String netXMLDataURL ){ Document document = null; DocumentBuilderFactory documentBF = DocumentBuilderFactory. newInstance (); DocumentBF. setNamespaceAware (true ); Try { DocumentBuilder documentB = documentBF. newDocumentBuilder (); InputStream inputStream = getSoapInputStream (netXMLDataURL ); // Related to the specific webService Document = documentB. parse (inputStream ); InputStream. close (); } Catch (DOMException e ){ E. printStackTrace (); Return null; } Catch (ParserConfigurationException e ){ E. printStackTrace (); Return null; } Catch (SAXException e ){ E. printStackTrace (); Return null; } Catch (IOException e ){ E. printStackTrace (); Return null; } Return document; } /* Return the InputStream object */ Public static InputStream getSoapInputStream (String url ){ InputStream inputStream = null; Try { URL urlObj = new URL (url ); URLConnection urlConn = urlObj. openConnection (); UrlConn. setRequestProperty ("Host", SERVICES_HOST ); // Related to the specific webService UrlConn. connect (); InputStream = urlConn. getInputStream (); } Catch (MalformedURLException e ){ E. printStackTrace (); } Catch (IOException e ){ E. printStackTrace (); } Return inputStream; } /* Access the xml format string returned by the remote (WebService) xml data and generate a local file */ Public static void helloOK (Document document, String savaFileURL ){ TransformerFactory transF = TransformerFactory. newInstance (); Try { Transformer transformer = transF. newTransformer (); DOMSource source = new DOMSource (document ); Transformer. setOutputProperty (OutputKeys. ENCODING, "UTF-8 "); Transformer. setOutputProperty (OutputKeys. INDENT, "YES "); PrintWriter pw = new PrintWriter (new FileOutputStream (savaFileURL )); StreamResult result = new StreamResult (pw ); Transformer. transform (source, result ); System. out. println ("xml file generated successfully! "); } Catch (TransformerConfigurationException e ){ System. out. println (e. getMessage ()); } Catch (IllegalArgumentException e ){ System. out. println (e. getMessage ()); } Catch (FileNotFoundException e ){ System. out. println (e. getMessage ()); } Catch (TransformerException e ){ System. out. println (e. getMessage ()); } } }

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