Java访问WebService返回xml数据

  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

  * 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 = “”;

  //远程WebService接口url

  private static String NETDATA_URL = “”;

  //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 = “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);

  }

  /*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());

  }

  }

  }

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