python 解析XML python模块xml.dom解析xml实例

<?xml version="1.0" encoding="UTF-8" ?>
<users>
    <user id="1000001">
        <username>Admin</username>
        <email>admin@live.cn</email>
        <age>23</age>
        <sex>男</sex>
    </user>
    <user id="1000002">
        <username>Admin2</username>
        <email>admin2@live.cn</email>
        <age>22</age>
        <sex>男</sex>
    </user>
    <user id="1000003">
        <username>Admin3</username>
        <email>admin3@live.cn</email>
        <age>27</age>
        <sex>男</sex>
    </user>
    <user id="1000004">
        <username>Admin4</username>
        <email>admin4@live.cn</email>
        <age>25</age>
        <sex>女</sex>
    </user>
    <user id="1000005">
        <username>Admin5</username>
        <email>admin5@live.cn</email>
        <age>20</age>
        <sex>男</sex>
    </user>
    <user id="1000006">
        <username>Admin6</username>
        <email>admin6@live.cn</email>
        <age>23</age>
        <sex>女</sex>
    </user>
</users>

# -*- coding:utf-8 -*-
"""
* User: lhj588
* Date: 11-11-9
* Time: 13：20
* Desc:
"""
from  xml.dom import  minidom

def get_attrvalue(node, attrname):
     return node.getAttribute(attrname) if node else ''

def get_nodevalue(node, index = 0):
    return node.childNodes[index].nodeValue if node else ''

def get_xmlnode(node,name):
    return node.getElementsByTagName(name) if node else []

def xml_to_string(filename='user.xml'):
    doc = minidom.parse(filename)
    return doc.toxml('UTF-8')

def get_xml_data(filename='user.xml'):
    doc = minidom.parse(filename)
    root = doc.documentElement

    user_nodes = get_xmlnode(root,'user')
    user_list=[]
    for node in user_nodes:
        user_id = get_attrvalue(node,'id')
        node_name = get_xmlnode(node,'username')
        node_email = get_xmlnode(node,'email')
        node_age = get_xmlnode(node,'age')
        node_sex = get_xmlnode(node,'sex')

        user_name =get_nodevalue(node_name[0]).encode('utf-8','ignore')
        user_email = get_nodevalue(node_email[0]).encode('utf-8','ignore')
        user_age = int(get_nodevalue(node_age[0]))
        user_sex = get_nodevalue(node_sex[0]).encode('utf-8','ignore')
        user = {}
        user['id'] , user['username'] , user['email'] , user['age'] , user['sex'] = (
            int(user_id), user_name , user_email , user_age , user_sex
        )
        user_list.append(user)
    return user_list

def test_xmltostring():
    print xml_to_string()

def test_laod_xml():
    user_list = get_xml_data()
    for user in user_list :
        #print user['sex']
        print '-----------------------------------------------------'
        if user:
            user_str='编   号：%dn用户名：%sn性   别：%sn年   龄：%sn邮   箱：%sn ' % (int(user['id']) , user['username'], user['sex'] , user['age'] , user['email'])
            print user_str
            print '====================================================='

if __name__ == "__main__":
    test_xmltostring()
    test_laod_xml()