python 利用lxml 解析xml文件

python 利用lxml 解析xml文件

运行下面程序之前首先保证你的运行环境已经支持python和lxml

如没有安装lxml 文件请参考：http://blog.csdn.net/zhaokuo719/article/details/8209496 进行安装lxml

#!/usr/bin/python
#--*--coding:UTF-8--*--
from lxml import etree
import re


def operationXML(xml_file,lastModparentNode,lastModChildNode=[]):
    try:
        parentNode = ""
        allChildNodes = []
        doc = etree.ElementTree(file = xml_file)
        root = doc.getroot();
        ns = getNameSpace(doc)
        if ns != None:
            parentNode = root.findall(ns+lastModparentNode,namespaces = None)
        else:
            parentNode = root.findall(lastModparentNode,namespaces = None)
        if parentNode == None or len(parentNode) == 0:
            print ("%s is emtpy"%(xml_file))
        else:
            for node_contents in parentNode:
                childNode=[]
                if len(lastModChildNode)!=0:
                    for childeNode in lastModChildNode:
                        node_text =""
                        if ns== None:
                            node_text = node_contents.find(childeNode)
                        else:
                            node_text = node_contents.find(ns+childeNode)
                        childNode.append(node_text.text)
                else:
                    for childAll in  list(node_contents):
                        childNode.append(childAll.text)
                allChildNodes.append(childNode)
            print allChildNodes
    except Exception,e:
        print e


#根据doc获得namespaces
def getNameSpace(doc):
    ns = None
    try:
        root = doc.getroot()
        r = re.compile('({.+})')
        if r.search(root.tag)!=None:
            ns = r.search(root.tag).group(1)
    except Exception, e:
        print e
    return ns




if __name__ =="__main__":
    """
        xml的内容如下：(目前中文会乱码 )
         
         
                 
                    xiaozhao 
                    m 
                    30 
                 
                 
                    zhao 
                    boy 
                    12 
                 
        
    """
    operationXML("D:/a.xml", "employee",["name"])