pull方式读xml

url.xml

<pre name="code" class="html"><?xml version="1.0" encoding="utf-8"?>
<urlfile>
    <url>http://192.168.1.2/wh/UploadData</url>
</urlfile>

<pre name="code" class="java">public class getXmlValue {

	public static String getUrl(InputStream inputStream){
        String urltext=null;
        XmlPullParser xmlParser = Xml.newPullParser();   
        try {
            xmlParser.setInput(inputStream, "utf-8");
            int evtType=xmlParser.getEventType();
	         while(evtType!=XmlPullParser.END_DOCUMENT){ 
	            switch(evtType){ 
	            case XmlPullParser.START_TAG:
	                String tag = xmlParser.getName(); 
	                //如果是river标签开始，则说明需要实例化对象了
	                if ("url".equals(tag)) { 
	                   urltext=xmlParser.nextText();
	                }
	                break;

	                default:break;
	            }
	            
	            evtType=xmlParser.next();
	         }
        } catch (XmlPullParserException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }catch (IOException e1) {
            // TODO Auto-generated catch block
            e1.printStackTrace();
        } 
        return urltext; 
    }
}

<pre name="code" class="java">	public static void save(String URL,OutputStream out) throws Exception{
		XmlSerializer serializer= Xml.newSerializer();
		serializer.setOutput(out, "UTF-8");
		serializer.startDocument("UTF-8", true);
		serializer.startTag(null, "urlfile");
		serializer.startTag(null, "url");
		serializer.text(URL);
		serializer.endTag(null, "url");
		serializer.endTag(null, "urlfile");
		serializer.endDocument();
		out.flush();
		out.close();
	}

InputStream inputStream= this.getClass().getClassLoader().getResourceAsStream("url.xml");
processURL=getXmlValue.getUrl(inputStream);

if(processURL.length()==0){
<span style="white-space:pre">	</span>Toast.makeText(this, "url.xml文件有误", Toast.LENGTH_LONG).show();
}