看漫画学Python 第十四章代码

14.3.1 发送GET请求

import urllib.request

url = 'http://localhost:8000/NoteWebService/note.do?/action=query&ID=10'

req = urllib.request.Request(url)
with urllib.request.urlopen(req) as response:
	data = response.read()
	json_data = data.decode()
	print(json_data)

14.3.2 发送POST请求

import urllib.request

url = 'http://localhost:8080/NoteWebService/note.do'

params_dict = {'action':'query','ID':'10'}
params_str = urllib.parse.urlencode(params_dict)
print(params_str)

params_bytes = params_str.encode()

req = urllib.request.Request(url,data = params_bytes) #
with urllib.request.urlopen(req) as response:
	data = response.read()
	json_data = data.decode()
	print(json_data)

14.4.2 JSON数据的解码

import urllib.request
import json

url = 'http://localhost:8000/NoteWebService/note.do?/action=query&ID=10'

req = urllib.request.Request(url)
with urllib.request.urlopen(req) as response:
	data = response.read()
	json_data = data.decode()
	print("JSON字符串：",json_data)

	py_dict = json.loads(json_data)
	print("备忘录ID：",py_dict['ID'])
	print("备忘录日期：",py_dict['CDate'])
	print("备忘录内容：",py_dict['Content'])
	print("用户ID：",py_dict['UserID'])

14.5 下载图片示例

import urllib.request

url = 'http://localhost:8080/NoteWebService/logo.png'

req = urllib.request.Request(url)
with urllib.request.urlopen(url) as response:
	data = response.read()
	f_name = 'download.png'
	with open(f_name,'wb') as f:
		f.write(data)
		print('数据下载成功')

14.6 返回所有备忘录信息

import urllib.request
import json

url = 'http://localhost:8080/NoteWebService/note.do'

req = urllib.request.Request(url)
with urllib.request.urlopen(req) as response:
	data = response.read()
	json_data = data.decode()

	py_dict = json.loads(json_data)
	#返回所有的备忘录记录信息
	record_array = py_dict['Record']

	for record_obj in record_array:
		print('--------备忘录信息--------')
		print("备忘录ID：",py_dict['ID'])
		print("备忘录日期：",py_dict['CDate'])
		print("备忘录内容：",py_dict['Content'])
		print("用户ID：",py_dict['UserID'])