本文实例讲述了Python使用sax模块解析XML文件。分享给大家供大家参考，具体如下：
XML样例：
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<?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：
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from xml import saxclass 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") |
PS：这里再为大家提供几款关于xml操作的在线工具供大家参考使用：
在线格式化XML/在线压缩XML：https://tool.zzvips.com/t/xml/
希望本文所述对大家Python程序设计有所帮助。
原文链接：https://www.cnblogs.com/wcwnina/p/7233386.html
