Python sax模块(SAX解析XML)

XML样例：

<?xml version="1.0"?>

<collection shelf="New Arrivals">

    <movie title="Enemy Behind">

       <type>War, Thriller</type>

       <format>DVD</format>

       <year>2003</year>

       <rating>PG</rating>

       <stars>10</stars>

       <description>Talk about a US-Japan war</description>

    </movie>

    <movie title="Transformers">

       <type>Anime, Science Fiction</type>

       <format>DVD</format>

       <year>1989</year>

       <rating>R</rating>

       <stars>8</stars>

       <description>A schientific fiction</description>

    </movie>

       <movie title="Trigun">

       <type>Anime, Action</type>

       <format>DVD</format>

       <episodes>4</episodes>

       <rating>PG</rating>

       <stars>10</stars>

       <description>Vash the Stampede!</description>

    </movie>

    <movie title="Ishtar">

       <type>Comedy</type>

       <format>VHS</format>

       <rating>PG</rating>

       <stars>2</stars>

       <description>Viewable boredom</description>

    </movie>

</collection>

SAX解析代码展示：

from xml import sax

class MovieHandler(sax.ContentHandler):

    def __init__(self):

        # 初始化数据，并增加一个当前数据

        self.CurrentData = ""

        self.type = ""

        self.format = ""

        self.year = ""

        self.rating = ""

        self.stars = ""

        self.description = ""

    # 文档启动的时候调用

    def startDocument(self):

        print('XML开始解析中...')

    # 元素开始事件处理

    def startElement(self, name, attrs):

        self.CurrentData=name

        if self.CurrentData=='movie':

            print('*********movie*********')

            title=attrs['title']

            print('Title:{0}'.format(title))

    # 内容事件处理

    def characters(self, content):

        if self.CurrentData == "type":

            self.type = content

        elif self.CurrentData == "format":

            self.format = content

        elif self.CurrentData == "year":

            self.year = content

        elif self.CurrentData == "rating":

            self.rating = content

        elif self.CurrentData == "stars":

            self.stars = content

        elif self.CurrentData == "description":

            self.description = content

    # 元素结束事件处理

    def endElement(self, name):

        if self.CurrentData=='type':

            print('Type:{0}'.format(self.type))

        elif self.CurrentData=='format':

            print('Format:{0}'.format(self.format))

        elif self.CurrentData=='year':

            print('Year:{0}'.format(self.year))

        elif self.CurrentData == 'rating':

            print('Rating:{0}'.format(self.rating))

        elif self.CurrentData == 'stars':

            print('Stars:{0}'.format(self.stars))

        elif self.CurrentData == 'description':

            print('Description:{0}'.format(self.description))

        self.CurrentData = ""

    # 文档结束的时候调用

    def endDocument(self):

        print('XML文档解析结束!')

if __name__=='__main__':

    handler=MovieHandler()

    parser = sax.make_parser()

    # parser.setFeature(sax.handler.feature_namespaces, 0)

    parser.setContentHandler(handler)

    parser.parse("sax_test.xml")

　　

　　至此，转载请注明出处。