public List<River> parse(String xmlPath){List<River> rivers=null;SAXParserFactory factory=SAXParserFactory.newInstance();try {SAXParser parser=factory.newSAXParser();//获取事件源XMLReader xmlReader=parser.getXMLReader();//设置处理器RiverHandler handler=new RiverHandler();xmlReader.setContentHandler(handler);//解析xml文档//xmlReader.parse(new InputSource(new URL(xmlPath).openStream()));xmlReader.parse(new InputSource(this.context.getAssets().open(xmlPath)));rivers=handler.getRivers();    } catch (ParserConfigurationException e) {// TODO Auto-generated catch blocke.printStackTrace();} catch (SAXException e) {// TODO Auto-generated catch blocke.printStackTrace();} catch (IOException e) {e.printStackTrace();}return rivers;}

/**导航到开始标签触发**/public void startElement (String uri, String localName, String qName, Attributes attributes){ String tagName=localName.length()!=0?localName:qName;tagName=tagName.toLowerCase().trim();//如果读取的是river标签开始，则实例化Riverif(tagName.equals(RIVER)){isRiver=true;river=new River();/**导航到river开始节点后**/river.setName(attributes.getValue(NAME));river.setLength(Integer.parseInt(attributes.getValue(LENGTH)));}//然后读取其他节点if(isRiver){ if(tagName.equals(INTRODUCTION)){xintroduction=true;}else if(tagName.equals(IMAGEURL)){ximageurl=true;}  }  }/**导航到结束标签触发**/public void endElement (String uri, String localName, String qName){String tagName=localName.length()!=0?localName:qName;tagName=tagName.toLowerCase().trim();//如果读取的是river标签结束，则把River添加进集合中if(tagName.equals(RIVER)){isRiver=true;rivers.add(river);}//然后读取其他节点if(isRiver){ if(tagName.equals(INTRODUCTION)){xintroduction=false;}else if(tagName.equals(IMAGEURL)){ximageurl=false;} }   } //这里是读取到节点内容时候回调public void characters (char[] ch, int start, int length){//设置属性值if(xintroduction){//解决null问题river.setIntroduction(river.getIntroduction()==null?"":river.getIntroduction()+new String(ch,start,length));}else if(ximageurl){//解决null问题river.setImageurl(river.getImageurl()==null?"":river.getImageurl()+new String(ch,start,length));}    }