上一文我们写出了js代码来加密数据作为参数，当我们写爬虫时需要加密过的参数作为登陆凭证来get数据，那我们怎么调用js呢
execjs库
首先我们需要在py中创建一共js可以运行的环境，需要用到的库是------execjs库，安装命令：
bash
pip install PyExecJS然后可以通过execjs.compile(js代码)来初始化，将JavaScript 代码编译为一个可执行的对象：
然后用初始化对象.call（js核心代码函数名，[param1, param2]），这就是为什么我要把js核心代码封装成函数：
javascript
result_func_js = js_exec.call('func_in_js', ['param1', 'param2']) # 伪代码我们可以将读取js代码 -> 初始化 -> 调用js函数封装成类：
javascript
import execjs
import os
class JSExecutor:
def __init__(self, js_file_path):
if not os.path.exists(js_file_path):
print(f'js代码不存在：{js_file_path}')
with open(js_file_path, 'r', encoding='utf-8') as f:
self.js_code = f.read()
# execjs.compile() 将JavaScript 代码编译为一个可执行的对象
self.js_code = execjs.compile(self.js_code)
def call(self, func_name, *args):
"""
封装python对js代码中函数的调用
:param func_name: js代码中的函数名
:param args: js代码中函数所需的参数
:return: js中函数运行后的结果
"""
return self.js_code.call(func_name, *args)
if __name__ == '__main__':
# 加载js文件
js_exec = JSExecutor('js路径.js')
# 调用js中函数
result_func_js = js_exec.call('func_in_js', ['param1', 'param2'])
print("js代码运行结果为：", result_func_js)直接套公式就行✌
实操
就上一文来练习一下：
这部分基本就不变，直接套，然后写上程序主入口，并实例化对象：
然后调用call函数：
函数名
参数
都拿来写进call，这里的参数其中有一个数字是翻页的，最后可以写成：
然后运行一下看看：
ok了，然后将参数传入基础爬虫程序的参数中就行了：
javascript
# 导入模块
import os
import execjs
import requests
def basic_crawler(analysis, page_num):
cookies = {
'qm_check': 'A1sdRUIQChtxen8pI0dAMRcOUFseEHBeQF0JTjVBWCwycRd1QlhAXFEGFUdASAFKBQcCcQ4IdhFFIg4aHRoOBnMDARlGR2dQOVdICAolAGgCHBl0B3xUV05KVFsZXVJRWxsKFghJVktYVElWBRVP',
'gr_user_id': 'fee2a18e-547e-4f09-bb2c-ba5e70220909',
'ada35577182650f1_gr_last_sent_cs1': 'qm25907020073',
'aso_ucenter': '3d0d2W%2BfI6%2B1HX2yQkg6QQEsznzgRx7XqxjaF3up3gE4OiP%2F417biqUIrOf8AxDxFc4',
'AUTHKEY': 'DfhcbIEyq81vUXS9sjPzP32JxOFnkWtkytMBxOJckgGjB2Iby1hG4iO67%2BdIedY2cy2%2B%2BEGadg3CZcAHxt1%2Bl9vsrc3XvkqRGWZ3Mv3I8wOtlVG9asekiw%3D%3D',
'USERINFO': 'cF38Ql5tf5WyrzzJzTHoEAdBQsBUYghkPKsyg%2FG2MyZFMnkjG7Hf%2FCLJc%2BBYDyU6CrW3Ww5mkXc0dttShLPibhAS5nWMAhH3Eot4ugMWsW%2B2nMvSljNE8y0uLtw0kS0gyXEooeMIj6T%2F3oMHiA4Zhw%3D%3D',
'PHPSESSID': 'j911j9ova533i9ehmgqg663vtv',
'ada35577182650f1_gr_session_id': 'd338e6a4-41f4-4da4-b325-b76ee9cb8fde',
'ada35577182650f1_gr_last_sent_sid_with_cs1': 'd338e6a4-41f4-4da4-b325-b76ee9cb8fde',
'ada35577182650f1_gr_session_id_sent_vst': 'd338e6a4-41f4-4da4-b325-b76ee9cb8fde',
'synct': '1759332116.003',
'syncd': '468',
'ada35577182650f1_gr_cs1': 'qm25907020073',
}
headers = {
'Accept': 'application/json, text/plain, */*',
'Accept-Language': 'zh-CN,zh;q=0.9,en;q=0.8,en-GB;q=0.7,en-US;q=0.6',
'Cache-Control': 'no-cache',
'Connection': 'keep-alive',
'Origin': 'https://www.qimai.cn',
'Pragma': 'no-cache',
'Sec-Fetch-Dest': 'empty',
'Sec-Fetch-Mode': 'cors',
'Sec-Fetch-Site': 'same-site',
'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/140.0.0.0 Safari/537.36 Edg/140.0.0.0',
'sec-ch-ua': '"Chromium";v="140", "Not=A?Brand";v="24", "Microsoft Edge";v="140"',
'sec-ch-ua-mobile': '?0',
'sec-ch-ua-platform': '"Windows"',
# 'Cookie': 'qm_check=A1sdRUIQChtxen8pI0dAMRcOUFseEHBeQF0JTjVBWCwycRd1QlhAXFEGFUdASAFKBQcCcQ4IdhFFIg4aHRoOBnMDARlGR2dQOVdICAolAGgCHBl0B3xUV05KVFsZXVJRWxsKFghJVktYVElWBRVP; gr_user_id=fee2a18e-547e-4f09-bb2c-ba5e70220909; ada35577182650f1_gr_last_sent_cs1=qm25907020073; aso_ucenter=3d0d2W%2BfI6%2B1HX2yQkg6QQEsznzgRx7XqxjaF3up3gE4OiP%2F417biqUIrOf8AxDxFc4; AUTHKEY=DfhcbIEyq81vUXS9sjPzP32JxOFnkWtkytMBxOJckgGjB2Iby1hG4iO67%2BdIedY2cy2%2B%2BEGadg3CZcAHxt1%2Bl9vsrc3XvkqRGWZ3Mv3I8wOtlVG9asekiw%3D%3D; USERINFO=cF38Ql5tf5WyrzzJzTHoEAdBQsBUYghkPKsyg%2FG2MyZFMnkjG7Hf%2FCLJc%2BBYDyU6CrW3Ww5mkXc0dttShLPibhAS5nWMAhH3Eot4ugMWsW%2B2nMvSljNE8y0uLtw0kS0gyXEooeMIj6T%2F3oMHiA4Zhw%3D%3D; PHPSESSID=j911j9ova533i9ehmgqg663vtv; ada35577182650f1_gr_session_id=d338e6a4-41f4-4da4-b325-b76ee9cb8fde; ada35577182650f1_gr_last_sent_sid_with_cs1=d338e6a4-41f4-4da4-b325-b76ee9cb8fde; ada35577182650f1_gr_session_id_sent_vst=d338e6a4-41f4-4da4-b325-b76ee9cb8fde; synct=1759332116.003; syncd=468; ada35577182650f1_gr_cs1=qm25907020073',
}
params = {
'analysis': analysis,
'status': '3',
'date': '2025-10-01',
'sdate': '2025-10-01',
'edate': '2025-10-01',
'country': 'cn',
'genre': '36',
'option': '4',
'page': f'{page_num}',
}
response = requests.get('https://api.qimai.cn/rank/offline', params=params, cookies=cookies, headers=headers)
print(response.text)
# 写一个调用js代码的类
class JSExecutor:
def __init__(self, js_file_path):
if not os.path.exists(js_file_path):
print('js文件不存在或者路径出错')
with open(js_file_path, 'r', encoding='utf-8') as f:
self.js_code = f.read()
self.js_code = execjs.compile(self.js_code)
def call(self, func_name, *args):
return self.js_code.call(func_name, *args)
if __name__ == '__main__':
# 实例化对象（直接运行__init__函数，等于说js代码也编译完了）
js_executor = JSExecutor('10-七麦数据js扣代码.js')
# 调用call方法
for page in range(5):
result = js_executor.call('main', f'2025-10-012025-10-012025-10-01{page}336allcn')
print(f'第{page}页加密参数为{result}')
basic_crawler(result, page)直接运行即可
小结
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