Python爬虫打印状态码为521，返回数据为乱码？

爬虫代码：

import requests
headers = {
    'User-Agent':'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.0.0 Safari/537.36',
    'Referer':'https://www1.rmfysszc.gov.cn/projects.shtml?dh=3&gpstate=1&wsbm_slt=1'
    
}
form_data  = {
          "type": "0",
          "name": "",
          "area": "河南省",
          "city": "河南省",
          "city1": "==请选择==",
          "city2": "==请选择==",
          "xmxz": "0",
          "state": "0",
          "money": "",
          "money1": "",
          "number": "0",
          "fid1": "",
          "fid2": "",
          "fid3": "",
          "order": "0",
          "page": "1",
          "include": "0"
}
response = requests.post('https://www1.rmfysszc.gov.cn/ProjectHandle.shtml',data=form_data,headers=headers)

print(response.status_code)
print(response.text)

打印返回结果：

后来打印状态码发现是521？

解决办法：

爬虫代码headers中添加网页cookie

注意：如何已添加cookie，出现断网情况，需要重新获取cookie

修改后的代码：

import requests
headers = {
    'User-Agent':'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.0.0 Safari/537.36',
    'Referer':'https://www1.rmfysszc.gov.cn/projects.shtml?dh=3&gpstate=1&wsbm_slt=1',
    'Cookie':'Cookies-01=78968004; ASP.NET_SessionId=kscnfewrtce2cj1gd3y1oefd; __jsluid_s=3626e7c26101665bc4ae1157ce1dbf7b; Hm_lvt_5698cdfa8b95bb873f5ca4ecf94ac150=1709957130; __jsl_clearance_s=1709957570.246|0|hWDDOOVhkDy6L7BtCygGoT9x5YE%3D; Hm_lpvt_5698cdfa8b95bb873f5ca4ecf94ac150=1709957572'
}
form_data  = {
          "type": "0",
          "name": "",
          "area": "河南省",
          "city": "河南省",
          "city1": "==请选择==",
          "city2": "==请选择==",
          "xmxz": "0",
          "state": "0",
          "money": "",
          "money1": "",
          "number": "0",
          "fid1": "",
          "fid2": "",
          "fid3": "",
          "order": "0",
          "page": "1",
          "include": "0"
}
response = requests.post('https://www1.rmfysszc.gov.cn/ProjectHandle.shtml',data=form_data,headers=headers)

print(response.status_code)
print(response.text)

打印结果：