How Python generates XML files with DOM modules

How does python generate XML files with DOM modules?

Main method Three points:

First, generate XML nodes (node)

CreateElement ("Node_name")

Then, add the attribute value to the node (Attribute)

Node.setattribute ("Att_name", "Arr_value")

Finally, the tag value of the node (data)

createTextNode ("Node_value")

1th, 3 points after the node (node value) is created, you also need to use the following method to add to the location of the pointing node:

Prev_node.appendchild (Cur_node)

The prev_node here is to add the upper node of the node, and Cur_node is the node that is currently being added.

The code is as follows:

Created on 2012-8-28  

@author: walfred

@module: Domxml.genxml

@description:

‘‘‘

Import Xml.dom.minidom as Dom

if __name__ = = "__main__":

doc = Dom.document ()

Root_node = Doc.createelement ("Book_store")

Root_node.setattribute ("name", "Newhua")

Root_node.setattribute ("website", "codego. Net")

Doc.appendchild (Root_node)

Book_node = Doc.createelement ("Book1")

Book_name_node = doc.createelement ("name")

Book_name_value = Doc.createtextnode ("Hamlet")

Book_name_node.appendchild (Book_name_value)

Book_node.appendchild (Book_name_node)

Book_author_node = Doc.createelement ("author")

Book_author_value = Doc.createtextnode ("William Shakespeare")

Book_author_node.appendchild (Book_author_value)

Book_node.appendchild (Book_author_node)

Root_node.appendchild (Book_node)

f = open ("Book_store.xml", "W")

F.write (doc.toprettyxml (indent = "\ T", newl = "\ n", encoding = "Utf-8"))

F.close ()

This code will generate a book_store.xml file in the current directory:

<?xml version= "1.0" encoding= "Utf-8"?>

<book_store name= "Newhua" website= " Codego . NET ">

<book1>

<name>hamlet</name>

<author>william shakespeare</author>

</book1>

</book_store>

The code is as follows:

Created on 2012-8-28

@author: walfred

@module: Domxml.wxmlbydom

@description:

Import Xml.dom.minidom as Dom

Class Xmlgenerator:

def __init__ (self, xml_name):

Self.doc = Dom.document ()

Self.xml_name = Xml_name

def createnode (self, node_name):

Return Self.doc.createElement (Node_name)

def addNode (self, node, Prev_node = None):

Cur_node = node

If Prev_node is not None:

Prev_node.appendchild (Cur_node)

Else

Self.doc.appendChild (Cur_node)

Return Cur_node

def setnodeattr (self, node, att_name, value):

Cur_node = node

Cur_node.setattribute (Att_name, value)

def setnodevalue (self, Cur_node, value):

Node_data = Self.doc.createTextNode (value)

Cur_node.appendchild (Node_data)

def genxml (self):

f = open (Self.xml_name, "w")

F.write (self.doc.toprettyxml (indent = "\ T", newl = "\ n", encoding = "Utf-8"))

F.close ()

if __name__ = = "__main__":

Myxmlgenerator = Xmlgenerator ("Book_store.xml")

#xml root Node

Node_book_store = Myxmlgenerator.createnode ("Book_store")

Myxmlgenerator.setnodeattr (Node_book_store, "name", "New Hua")

Myxmlgenerator.setnodeattr (Node_book_store, "website", "Codego.net")

Myxmlgenerator.addnode (node = node_book_store)

#book01

node_book_01 = Myxmlgenerator.createnode ("book")

Node_book_01_name = Myxmlgenerator.createnode ("name")

Myxmlgenerator.setnodevalue (Node_book_01_name, "Hamlet")

Myxmlgenerator.addnode (Node_book_01_name, node_book_01)

Node_book_01_author = Myxmlgenerator.createnode ("author")

Myxmlgenerator.setnodevalue (Node_book_01_author, "William Shakespeare")

Myxmlgenerator.addnode (Node_book_01_author, node_book_01)

Node_book_01_price = Myxmlgenerator.createnode ("Price")

Myxmlgenerator.setnodevalue (Node_book_01_price, "$ $")

Myxmlgenerator.addnode (Node_book_01_price, node_book_01)

Node_book_01_grade = Myxmlgenerator.createnode ("Grade")

Myxmlgenerator.setnodevalue (Node_book_01_grade, "good")

Myxmlgenerator.addnode (Node_book_01_grade, node_book_01)

Myxmlgenerator.addnode (node_book_01, Node_book_store)

#book 02

node_book_02 = Myxmlgenerator.createnode ("book")

Node_book_02_name = Myxmlgenerator.createnode ("name")

Myxmlgenerator.setnodevalue (Node_book_02_name, "Shuihu")

Myxmlgenerator.addnode (Node_book_02_name, node_book_02)

Node_book_02_author = Myxmlgenerator.createnode ("author")

Myxmlgenerator.setnodevalue (Node_book_02_author, "Naian shi")

Myxmlgenerator.addnode (Node_book_02_author, node_book_02)

Node_book_02_price = Myxmlgenerator.createnode ("Price")

Myxmlgenerator.setnodevalue (Node_book_02_price, "$")

Myxmlgenerator.addnode (Node_book_02_price, node_book_02)

Node_book_02_grade = Myxmlgenerator.createnode ("Grade")

Myxmlgenerator.setnodevalue (Node_book_02_grade, "good")

Myxmlgenerator.addnode (Node_book_02_grade, node_book_02)

Myxmlgenerator.addnode (node_book_02, Node_book_store)

#gen

Myxmlgenerator.genxml ()

The same method will generate a Book_store.xml file in this directory with the following code:

<?xml version= "1.0" encoding= "Utf-8"?>

<book_store name= "New Hua" website= " Codego . NET ">

<book>

<name>Hamlet</name>

<author>william shakespeare</author>

<price>$20</price>

<grade>good</grade>

</book>

<book>

<name>shuihu</name>

<author>naian shi</author>

<price>$200</price>

<grade>good</grade>

</book>

</book_store>

This article is from the "10073178" blog, please be sure to keep this source http://10073178.blog.51cto.com/10063178/1629093

How Python generates XML files with DOM modules