Python爬虫:url中带字典列表参数的编码转换方法

Python  /  管理员 发布于 8年前   292

平时见到的url参数都是key-value, 一般vlaue都是字符串类型的

如果有幸和我一样遇到字典，列表等参数，那么就幸运了

python2代码

import jsonfrom urllib import urlencode# 1. 直接将url编码params = {  "name": "Tom",  "hobby": ["ball", "swimming"],  "books": [{"name": "语文", "pages": 20}]}print(urlencode(params))"""hobby=%5B%27ball%27%2C+%27swimming%27%5D&books=%5B%7B%27name%27%3A+%27%5Cxe8%5Cxaf%5Cxad%5Cxe6%5Cx96%5Cx87%27%2C+%27pages%27%3A+20%7D%5D&name=Tom"""# 2. 先用json序列化字典和列表参数params = {  "name": "Tom",  "hobby": json.dumps(["ball", "swimming"]),  "books": json.dumps([{"name": "语文", "pages": 20}])}print(urlencode(params))"""hobby=%5B%22ball%22%2C+%22swimming%22%5D&books=%5B%7B%22name%22%3A+%22%5Cu8bed%5Cu6587%22%2C+%22pages%22%3A+20%7D%5D&name=Tom"""

观察1 和2 序列化出来的url参数不是一样的，如果第一种方式的url不能正常访问，那么就用第二种