Detailed explanation of cgi writing data example code to text or database

Use cgi to write data to text or database

1. Start the cgi service

python -m http.server --cgi port[Port is optional and defaults to 8000]

update.py code

#coding:utf8
import cgi
c = cgi.FieldStorage()#获取表单参数
try:
   data1 =  c['mem'].value#获取表单中mem的值
   data2 =  c['cpu'].value#获取表单中cpu的值
except KeyError:#如果没获取到数据，就把数据设置为空
    data1 = ''
    data2 = ''
if data1 or data2:#判断是否获取到数据
    f = open('cgi-bin/1.txt','w',encoding='utf8')#创建文件
    f.write(data1 +'%' + '\n')#写入mem的值
    f.write(data2 +'%' + '\n')#写入cpu的值
    f.close()#关闭文件

#coding:utf8
import psutil
import urllib.parse
import urllib.request
test_data = {'mem':psutil.virtual_memory().percent,'cpu':psutil.cpu_percent()}
test_data_urlencode = urllib.parse.urlencode(test_data).encode('utf8')#把字典转为urlencode格式并解码为字节流
requrl = "http://127.0.0.1:8000/cgi-bin/updata.py"
req = urllib.request.Request(url=requrl,data=test_data_urlencode)#url带参数去请求服务器
res_data = urllib.request.urlopen(req)#提交请求

The client calls cgi’s update.py script to transfer the data to be transmitted to a text file in a fixed format

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