XML解析(SAX解析)

来源：互联网发布：淘宝店铺排行榜怎么看编辑：程序博客网时间：2024/05/01 10:16
  private void saxParseXml() {        if(Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)){            File path = Environment.getExternalStorageDirectory();            File fxml = new File(path,"books.xml");            try {//                FileInputStream fis = new FileInputStream(fxml);//可有可无                //1.获取SAXParserFactory对象                SAXParserFactory saxFactory = SAXParserFactory.newInstance();                //2.获取SAXParser对象                SAXParser parser = saxFactory.newSAXParser();                //3.解析xml                parser.parse(fxml,new MyHandler());                for(Book b:books){                    Log.d("book", b.toString());                }            } catch (FileNotFoundException e) {                e.printStackTrace();            } catch (ParserConfigurationException e) {                // TODO Auto-generated catch block                e.printStackTrace();            } catch (SAXException e) {                // TODO Auto-generated catch block                e.printStackTrace();            } catch (IOException e) {                // TODO Auto-generated catch block                e.printStackTrace();            }        }    }    class MyHandler extends DefaultHandler{        private Book book;        private String tag;        @Override        public void characters(char[] ch, int start, int length)                throws SAXException {            super.characters(ch, start, length);            //解析节点内容或空白            if(tag.equals("name")){                book.setName(new String(ch,start,length));            }else if(tag.equals("price")){                book.setPrice(new String(ch,start,length));            }        }        @Override        public void endDocument() throws SAXException {            super.endDocument();            //结束文档解析        }        @Override        public void endElement(String uri, String localName, String qName)                throws SAXException {            super.endElement(uri, localName, qName);            //结束节点解析            tag = "";            if(localName.equals("book")){                books.add(book);            }        }        @Override        public void startDocument() throws SAXException {            super.startDocument();            //开始文档解析            books = new ArrayList<Book>();        }        @Override        public void startElement(String uri, String localName, String qName,                Attributes attributes) throws SAXException {            super.startElement(uri, localName, qName, attributes);            tag = localName;            //localName --节点名称            //开始节点解析            if(localName.equals("book")){                book = new Book();                book.setId(attributes.getValue("id"));            }        }    }
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