python 生成xml

其实最主要掌握以下几个函数

1.doc=xml.dom.minidom.Document()#生成xml的dom树对象

2.root=doc.createElement("root")#创建树节点，可以使根节点或者是子节点

3.child.setAttribute('value',value)#设置节点属性

4.root.appendChild(child)#确定子节点与根节点依赖关系

5.child.appendChild(doc.createTextNode('hello world'))#向节点中插入文本内容

def writexml(servername,ip,port,provider,description,value):
try:
fp=open("C:\\Users\xxx\Desktop\Python3.6.2\域名解析\xxx.xml","w",encoding="utf-8")
try:
doc=xml.dom.minidom.Document()
root=doc.createElement("root")
doc.appendChild(root)

child1=doc.createElement("server")
child1.setAttribute('name',servername)
child_error=doc.createElement("error")
child_error.setAttribute('description', description)
child_error.setAttribute('value',value)

child2=doc.createElement("address")

child3=doc.createElement('addr')
child3.setAttribute('ip',ip[0])
child3.setAttribute('port', port[0])
child3.setAttribute('provider', provider[0])

child4=doc.createElement('addr')
child4.setAttribute('ip', ip[1])
child4.setAttribute('port', port[1])
child4.setAttribute('provider', provider[1])
#child3.appendChild(doc.createTextNode('hello world'))

child5 = doc.createElement('addr')
child5.setAttribute('ip', ip[2])
child5.setAttribute('port', port[2])
child5.setAttribute('provider', provider[2])

root.appendChild(child_error)
child2.appendChild(child3)
child2.appendChild(child4)
child2.appendChild(child5)
root.appendChild(child1)
root.appendChild(child2)

doc.writexml(fp,indent='\t', addindent='\t', newl='\n', encoding="UTF-8")
except :
traceback.print_exc()
logging.warning("writexml allerror%s"%traceback.print_exc())
finally:
fp.close()

except OSError as err:
print("OS error: {0}".format(err))
logging.warning('writexml OSError:%s'%err)
except ValueError:
print("Could not convert data to an integer.")
logging.warning('writexml ValueError:%s'%ValueError)