Java访问WebService返回XML数据的方法

本文实例讲述了java访问webservice返回xml数据的方法。分享给大家供大家参考。具体如下：

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 = "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 = "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());
}
}
}

希望本文所述对大家的java程序设计有所帮助。