由于老系統用的XML格式作為接口，而我的程序需要將這部分xml轉換成json再使用。<student>
<stid>10213</stid>
<info>
<name>name</name>
<mail>[email protected]</mail>
<sex>male</sex>
</info>
<course>
<name>math</name>
<score>90</age>
</course>
<course>
<name>english</name>
<score>88</age>
</course>
...</student>轉成類似下面這種：{ "student": ...
...}
1 回答
素胚勾勒不出你
TA貢獻1827條經驗 獲得超9個贊
#! /usr/bin/env python# -*- coding:utf-8 -*-from xml.parsers.expat import ParserCreatetry: import jsonexcept: import simplejson as jsonclass Xml2Json:
LIST_TAGS = ['COMMANDS']
def __init__(self, data = None):
self._parser = ParserCreate()
self._parser.StartElementHandler = self.start
self._parser.EndElementHandler = self.end
self._parser.CharacterDataHandler = self.data
self.result = None
if data:
self.feed(data)
self.close()
def feed(self, data):
self._stack = []
self._data = ''
self._parser.Parse(data, 0) def close(self):
self._parser.Parse("", 1) del self._parser def start(self, tag, attrs): assert attrs == {} assert self._data.strip() == ''
self._stack.append([tag])
self._data = ''
def end(self, tag):
last_tag = self._stack.pop() assert last_tag[0] == tag if len(last_tag) == 1: #leaf
data = self._data else: if tag not in Xml2Json.LIST_TAGS: # build a dict, repeating pairs get pushed into lists
data = {} for k, v in last_tag[1:]: if k not in data:
data[k] = v else:
el = data[k] if type(el) is not list:
data[k] = [el, v] else:
el.append(v) else: #force into a list
data = [{k:v} for k, v in last_tag[1:]] if self._stack:
self._stack[-1].append((tag, data)) else:
self.result = {tag:data}
self._data = ''
def data(self, data):
self._data = dataif __name__ == '__main__':
xml = """
<student>
<stid>10213</stid>
<info>
<name>name</name>
<mail>[email protected]</mail>
<sex>male</sex>
</info>
<course>
<name>math</name>
<age>90</age>
</course>
<course>
<name>english</name>
<age>88</age>
</course>
</student>
"""
result = Xml2Json(xml).result; print(result) print("*" * 80) print(result['student']['stid']) print("*" * 80) print(json.dumps(result))話說,老兄，你給的 xml bug 一大堆啊
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