XML文件解析工具類pull解析

    public class XMLParser {  
        /** 
         * 解析服務器的配置文件 
         * @param is 從服務器獲得配置的文件的流 
         */  
        public static UpdateInfo parser(InputStream is){  
            UpdateInfo info=null;  
            try {  
                //獲得pull解析實例  
                XmlPullParserFactory factory=XmlPullParserFactory.newInstance();  
                XmlPullParser xmlParser=factory.newPullParser();  
            //初始化解析器  
                xmlParser.setInput(is, "UTF-8");  
                int eventType=xmlParser.getEventType();  
                //文檔沒有解析完  
                while(eventType!=XmlPullParser.END_DOCUMENT){  
                    switch (eventType) {  
                    case XmlPullParser.START_TAG:  
                        if(xmlParser.getName().equals("info")){  
                            info=new UpdateInfo();  

                        }else if(xmlParser.getName().equals("version")){  
                            info.setVersion(xmlParser.nextText());  

                        }else if(xmlParser.getName().equals("desc")){  
                            info.setDesc(xmlParser.nextText());  
                        }else if(xmlParser.getName().equals("apkurl")){  
                            info.setApkUrl(xmlParser.nextText());  
                        }  
                        break;  

                    }  
                    eventType=xmlParser.next();  


                }  

            } catch (XmlPullParserException e) {  
                // TODO Auto-generated catch block  
                e.printStackTrace();  
            } catch (IOException e) {  
                // TODO Auto-generated catch block  
                e.printStackTrace();  
            }  

            return info;  

        }  

    }  

    <?xml version="1.0" encoding="utf-8"?>  
    <info>  
    <version>2.0</version>  
    <description>xxxxxxxxxx</description>  
    <apkurl>http://192.168.253.1:8080/xxxxxxx.apk</apkurl>  
    </info>