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本文實例講述了Python使用sax模塊解析XML文件。分享給大家供大家參考,具體如下:
XML樣例:
<?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解析代碼展示:
from xml import sax class MovieHandler(sax.ContentHandler): def __init__(self): # 初始化數(shù)據(jù),并增加一個當前數(shù)據(jù) self.CurrentData = "" self.type = "" self.format = "" self.year = "" self.rating = "" self.stars = "" self.description = "" # 文檔啟動的時候調用 def startDocument(self): print('XML開始解析中...') # 元素開始事件處理 def startElement(self, name, attrs): self.CurrentData=name if self.CurrentData=='movie': print('*********movie*********') title=attrs['title'] print('Title:{0}'.format(title)) # 內容事件處理 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 # 元素結束事件處理 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 = "" # 文檔結束的時候調用 def endDocument(self): print('XML文檔解析結束!') 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:這里再為大家提供幾款關于xml操作的在線工具供大家參考使用:
在線XML/JSON互相轉換工具:
http://tools.jb51.net/code/xmljson
在線格式化XML/在線壓縮XML:
http://tools.jb51.net/code/xmlformat
XML在線壓縮/格式化工具:
http://tools.jb51.net/code/xml_format_compress
XML代碼在線格式化美化工具:
http://tools.jb51.net/code/xmlcodeformat
更多關于Python相關內容感興趣的讀者可查看本站專題:《Python操作xml數(shù)據(jù)技巧總結》、《Python數(shù)據(jù)結構與算法教程》、《Python Socket編程技巧總結》、《Python函數(shù)使用技巧總結》、《Python字符串操作技巧匯總》、《Python入門與進階經典教程》及《Python文件與目錄操作技巧匯總》
希望本文所述對大家Python程序設計有所幫助。
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