使用minidom读写xml
一 python提供的xml支持
python还提供了python独特的xml解析方法,相比于SAX和DOM更容易使用和更加快速,此方法为ElementTree。 python的xml模块为: 1)xml.dom.minidom 2)xml.elementtree 3)xml.sax + xml.dom 二 xml实例:(employees.xml)
<?xml version="1.0" encoding="UTF-8"?> <employees> <employee> <name>linux</name> <age>30</age> </employee> <employee> <name>windows</name> <age>20</age> </employee> </employees> 三 使用xml.dom.minidom来读写xml 1)使用xml.dom.minidom来解析xml:
def TestMiniDom(): from xml.dom import minidom doc = minidom.parse("employees.xml") # get root element: <employees/> root = doc.documentElement # get all children elements: <employee/> <employee/> employees = root.getElementsByTagName("employee") for employee in employees: print("-------------------------------------------") # element name : employee print (employee.nodeName) # element xml content : <employee><name>windows</name><age>20</age></employee> # basically equal to toprettyxml function print (employee.toxml()) nameNode = employee.getElementsByTagName("name")[0] print (nameNode.childNodes) print (nameNode.nodeName + ":" + nameNode.childNodes[0].nodeValue) ageNode = employee.getElementsByTagName("age")[0] print (ageNode.childNodes) print (ageNode.nodeName + ":" + ageNode.childNodes[0].nodeValue) print("-------------------------------------------") # children nodes : n is one text element # [ # <DOM Text node "' n '">,# <DOM Element: name at 0xc9e490>,# <DOM Text node "'n '">,# <DOM Element: age at 0xc9e4f0>,# <DOM Text node "'n '"> # ] for n in employee.childNodes: print (n) TestMiniDom()
------------------------------------------- employee <employee> <name>linux</name> <age>30</age> </employee> [<DOM Text node "'linux'">] name:linux [<DOM Text node "'30'">] age:30 ------------------------------------------- <DOM Text node "' n '"> <DOM Element: name at 0xc9f590> <DOM Text node "'n '"> <DOM Element: age at 0xc9f5f0> <DOM Text node "'n '"> ------------------------------------------- employee <employee> <name>windows</name> <age>20</age> </employee> [<DOM Text node "'windows'">] name:windows [<DOM Text node "'20'">] age:20 ------------------------------------------- <DOM Text node "' n '"> <DOM Element: name at 0xc9f6b0> <DOM Text node "'n '"> <DOM Element: age at 0xc9f710> <DOM Text node "'n '"> 2)使用xml.dom.minidom来生成xml:
def GenerateXml(): import xml.dom.minidom impl = xml.dom.minidom.getDOMImplementation() dom = impl.createDocument(None,'employees',None) root = dom.documentElement employee = dom.createElement('employee') root.appendChild(employee) nameE=dom.createElement('name') nameT=dom.createTextNode('linux') nameE.appendChild(nameT) employee.appendChild(nameE) ageE=dom.createElement('age') ageT=dom.createTextNode('30') ageE.appendChild(ageT) employee.appendChild(ageE) f= open('employees2.xml','w',encoding='utf-8') dom.writexml(f,addindent=' ',newl='n',encoding='utf-8') f.close() GenerateXml() 运行结果:
<?xml version="1.0" encoding="utf-8"?> <employees> <employee> <name> linux </name> <age> </age> </employee> </employees> 3)使用xml.dom.minidom需要注意的 *使用parse()或createDocument()返回的为DOM对象; 'ATTRIBUTE_NODE''CDATA_SECTION_NODE''COMMENT_NODE''DOCUMENT_FRAGMENT_NODE' 'DOCUMENT_NODE''DOCUMENT_TYPE_NODE''ELEMENT_NODE''ENTITY_NODE''ENTITY_REFERENCE_NODE' 'NOTATION_NODE''PROCESSING_INSTRUCTION_NODE''TEXT_NODE' 参考: http://boyeestudio.cnblogs.com/archive/2005/08/16/216408.html http://www.dnbcw.com/biancheng/python/pnwb252539.html http://blog.csdn.net/kiki113/archive/2009/04/15/4080789.aspx (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |
- 批量导入xml到informatica repository中的shell script
- logback logback.xml常用配置详解(三) <filter>
- Qt5.7编译oracle数据库驱动(提供下载)
- 扩展正则用法小结
- flex 与java 读取java, 解析json
- Time-Based Blind NoSQL Injection
- 正则表达式替换正在吞噬整个字符串!我如何制作正则表达式?
- c# – 如何编写自定义ASP.NET MVC HTML Helper,如Html.Text
- ruby-on-rails – 如何阻止当前请求的Rails调试器
- c# – 为什么部分方法支持ref但不支持参数