java访问WebService接口返回xml

package net.csdn.qiailin.security; 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 qiailin 漆艾林 * * 2011年1月19日 13:30:47 * * DomXMLString.java * * 概述：纯java方式访问远程WebService接口返回的xml格式的数据保存在本地 */ public class DomXMLString { private static String SERVICES_HOST = "www.webxml.com.cn"; // 远程WebService接口url private static String NETDATA_URL = "http://webservice.webxml.com.cn/WebServices/WeatherWS.asmx/getRegionProvince"; // 访问远程WebService接口返回的xml格式的数据保存在本地的绝对路径 private static String LOCAL_PC_SAVEFILE_URL = "netDataToLocalFile.xml"; private DomXMLString() { } public static void main(String[] args) throws Exception { Document document = getProvinceCode(NETDATA_URL); helloOK(document, LOCAL_PC_SAVEFILE_URL); } /* 返回一个Document对象 */ 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); // 具体webService相关 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; } /* 返回InputStream对象 */ public static InputStream getSoapInputStream(String url) { InputStream inputStream = null; try { URL urlObj = new URL(url); URLConnection urlConn = urlObj.openConnection(); urlConn.setRequestProperty("Host", SERVICES_HOST); // 具体webService相关 urlConn.connect(); inputStream = urlConn.getInputStream(); } catch (MalformedURLException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } return inputStream; } /* 访问远程(WebService)xml数据后返回的xml格式字符串并生成为本地文件 */ 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("生成xml文件成功!"); } 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()); } } }