后端开发|Python教程
python,解析,xml文件
后端开发-Python教程
本文实例讲述了python解析xml文件操作的实现方法。分享给大家供大家参考。具体方法如下：
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xml文件内容如下：
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python代码：
from xml.dom import minidom, Node import re, textwrap class SampleScanner: """""" def __init__(self, doc):"""Constructor"""assert(isinstance(doc, minidom.Document))for child in doc.childNodes: if child.nodeType == Node.ELEMENT_NODE and \ child.tagName == "book": self.handle_book(child) def handle_book(self, node):for child in node.childNodes: if child.nodeType != Node.ELEMENT_NODE: continue if child.tagName == "title": print "Book titile is:", self.gettext(child.childNodes) if child.tagName == "author": self.handle_author(child) if child.tagName == "chapter": self.handle_chapter(child) def handle_chapter(self, node):number = node.getAttribute("number")print "number:", numbertitle_node = node.getElementsByTagName("title")print "title:", self.gettext(title_node)for child in node.childNodes: if child.nodeType != Node.ELEMENT_NODE: continue if child.tagName == "para": self.handle_chapter_para(child) def handle_chapter_para(self, node):company = ""company = self.gettext(node.getElementsByTagName("company"))print "chapter:para:company", company def handle_author(self, node):for child in node.childNodes: if child.nodeType != Node.ELEMENT_NODE: continue if child.tagName == "name": self.handle_author_name(child) if child.tagName == "affiliation": print "affiliation:", self.gettext(child.childNodes) def handle_author_name(self, node):first = ""last = ""for child in node.childNodes: if child.nodeType != Node.ELEMENT_NODE: continue if child.tagName == "first": first = self.gettext(child.childNodes) if child.tagName == last: last = self.gettext(child.childNodes) print "firstname:%s,lastname:%s" % (first, last) def gettext(self, nodelist):retlist = []for node in nodelist: if node.nodeType == Node.TEXT_NODE: retlist.append(node.wholeText) elif node.hasChildNodes: retlist.append(self.gettext(node.childNodes)) return re.sub(\s+, " ", \.join(retlist)) if __name__=="__main__": doc = minidom.parse("simple.xml") sample = SampleScanner(doc)
