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urlprivate 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());}}}