import xml.parsers.expat

level = 0

def start_element(name, attrs):
     global level
     print ‘ ‘ * level, ‘Start element:’, name, attrs
     level = level + 1

def end_element(name):
     global level
     level = level – 1
     print ‘ ‘ * level, ‘End element:’, name

def char_data(data):
     if(data == ‘n’):
       return
     if(data.isspace()):
       return
     global level
     print ‘ ‘ * level, ‘Character data:’, data

if __name__ == "__main__":
     p = xml.parsers.expat.ParserCreate()
     p.StartElementHandler = start_element
     p.EndElementHandler = end_element
     p.CharacterDataHandler = char_data
     p.returns_unicode = False

     f = file(‘sample.xml’)
     p.ParseFile(f)
     f.close()

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提取struts中配置的action:

import xml.parsers.expat

level = 0
pkg = ”
def start_element(name, attrs):
     global level
     global pkg
     if(name == ‘package’):
        pkg = attrs[‘namespace’]
     if(name == ‘action’):
        print pkg + "/" + attrs[‘name’] + ".action"
     #level = level + 1

def end_element(name):
    print ”

def char_data(data):
     if(data == ‘n’):
       return
     if(data.isspace()):
       return
     global level
     print ‘ ‘

if __name__ == "__main__":
     p = xml.parsers.expat.ParserCreate()
     p.StartElementHandler = start_element
     p.EndElementHandler = end_element
     p.CharacterDataHandler = char_data
     p.returns_unicode = False

     f = file(‘sample.xml’)
     p.ParseFile(f)
     f.close()