One, Python module xml.dom parsing XML API
Minidom.parse (filename)
Load read XML file
Doc.documentelement
Get XML Document Object
Node.getattribute (AttributeName)
Get XML Node Property value
Node.getelementsbytagname (TagName)
Getting the collection of XML node objects
Node.childnodes #返回子节点列表.
Node.childnodes[index].nodevalue
Get XML node value
Node.firstchild
#访问第一个节点. Equivalent to Pagexml.childnodes[0]
doc = minidom.parse (filename)
Doc.toxml (' UTF-8 ')
Returns the text of the XML representation of node nodes
node.attributes["id"]
A.name #就是上面的 "id"
A.value #属性的值
accessing element properties
Second, Python parse the XML file instance code
1, create User.xml file, add XML node
Copy Code code as follows:
<?xml version= "1.0" encoding= "UTF-8"?>
<users>
<user id= "1000001" >
<username>Admin</username>
<email>admin@live.cn</email>
<age>23</age>
<sex> male </sex>
</user>
<user id= "1000002" >
<username>Admin2</username>
<email>admin2@live.cn</email>
<age>22</age>
<sex> male </sex>
</user>
<user id= "1000003" >
<username>Admin3</username>
<email>admin3@live.cn</email>
<age>27</age>
<sex> male </sex>
</user>
<user id= "1000004" >
<username>Admin4</username>
<email>admin4@live.cn</email>
<age>25</age>
<sex> Women </sex>
</user>
<user id= "1000005" >
<username>Admin5</username>
<email>admin5@live.cn</email>
<age>20</age>
<sex> male </sex>
</user>
<user id= "1000006" >
<username>Admin6</username>
<email>admin6@live.cn</email>
<age>23</age>
<sex> Women </sex>
</user>
</users>
2, demo.py parsing user.xml document data
Copy Code code as follows:
#-*-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= ' ID:%d\n username:%s\n Sex:%s\n Age:%s\n mailbox:%s\n '% (int (user[' id ')), user[' username '], user[' sex '], user[' AG E '], user[' email ']
Print User_str
print ' ===================================================== '
if __name__ = = "__main__":
Test_xmltostring ()
Test_laod_xml ()
3. Test effect
A, Test ToXml
The demo.py file is modified into
if __name__ = = "__main__":
Test_xmltostring ()
This section is the content of the second part of the Python parsing XML Python module xml.dom parsing XML instances.
To perform the print result:
Copy Code code as follows:
<user id= "1000001" >
<username>Admin</username>
<email>admin@live.cn</email>
<age>23</age>
<sex> male </sex>
</user>
<user id= "1000002" >
<username>Admin2</username>
<email>admin2@live.cn</email>
<age>22</age>
<sex> male </sex>
</user>
<user id= "1000003" >
<username>Admin3</username>
<email>admin3@live.cn</email>
<age>27</age>
<sex> male </sex>
</user>
<user id= "1000004" >
<username>Admin4</username>
<email>admin4@live.cn</email>
<age>25</age>
<sex> Women </sex>
</user>
<user id= "1000005" >
<username>Admin5</username>
<email>admin5@live.cn</email>
<age>20</age>
<sex> male </sex>
</user>
<user id= "1000006" >
<username>Admin6</username>
<email>admin6@live.cn</email>
<age>23</age>
<sex> Women </sex>
</user>
B, test parse XML
The demo.py file is modified into
if __name__ = = "__main__":
Test_laod_xml ()
Perform print out results:
-----------------------------------------------------
Item No: 1000001
User name: Admin
Sex: Male
Age: 23
Email: admin@live.cn
=====================================================
-----------------------------------------------------
Item No: 1000002
User name: Admin2
Sex: Male
Age: 22
Email: admin2@live.cn
=====================================================
-----------------------------------------------------
Item No: 1000003
User name: Admin3
Sex: Male
Age: 27
Email: admin3@live.cn
=====================================================
-----------------------------------------------------
Item No: 1000004
User name: Admin4
Sex: Female
Age: 25
Email: admin4@live.cn
=====================================================
-----------------------------------------------------
Item No: 1000005
User name: Admin5
Sex: Male
Age: 20
Email: admin5@live.cn
=====================================================
-----------------------------------------------------
Item No: 1000006
User name: Admin6
Sex: Female
Age: 23
Email: admin6@live.cn
=====================================================
