使用 CGI (Python) 在 HTML 中显示 HTTP 响应消息答案

【问题标题】：Display HTTP Response Message in HTML using CGI (Python)使用 CGI (Python) 在 HTML 中显示 HTTP 响应消息
【发布时间】：2013-05-20 16:31:24
【问题描述】：

我创建了一个本地服务器，它向http://httpbin.org/post 发送 HTTP POST 消息，然后在屏幕上打印返回消息。

当直接从终端运行时，在后端运行的 python CGI 代码以“漂亮”格式打印返回消息：

Content-type:text/html


<html>
<head>
<title>TEST</title>
<meta http-equiv='refresh' content='1'>
</head>
<body>
<h2>RETURN: </h2><h5>{
  "headers": {
    "Content-Type": "application/x-www-form-urlencoded",
    "Host": "httpbin.org",
    "Accept": "*/*",
    "Connection": "close",
    "Accept-Encoding": "gzip, deflate, compress",
    "User-Agent": "python-requests/1.2.0 CPython/2.7.3 Linux/3.5.0-17-generic",
    "Content-Length": "67"
  },
  "files": {},
  "origin": "125.63.99.141",
  "args": {},
  "url": "http://httpbin.org/post",
  "data": "",
  "form": {
    "RAM": "2577.46",
    "TIME": "2013-05-20 21:36:16.388751",
    "TEMP": "+55.5\u00b0C"
  },
  "json": null
}</h5>
</body>
</html>

但是，当代码使用 CGI 通过本地服务器运行时，消息格式错误（全部在一行中）：

 { "headers": { "Accept": "*/*", "Content-Type": "application/x-www-form-urlencoded", "Host": "httpbin.org", "Accept-Encoding": "gzip, deflate, compress", "Content-Length": "60", "User-Agent": "python-requests/1.2.0 CPython/2.7.3 Linux/3.5.0-17-generic", "Connection": "close" }, "args": {}, "url": "http://httpbin.org/post", "data": "", "origin": "125.63.99.141", "form": { "TEMP": "+55.5", "TIME": "2013-05-20 21:57:38.973723", "RAM": "2478.78" }, "json": null, "files": {} }

我是 HTML 和 JSON 的新手，但我认为可以将响应存储为 JSON 对象，然后使用一些 HTML 标记以格式化的方式打印它。

这是我的 CGI 文件：

#!/usr/bin/python

import requests 
import subprocess
from datetime import datetime

# script to extract free RAM from vmstat
str = "vmstat | awk '/[0-9]/ { print $4/1024 }'"

# script to extract CPU core temp from sensors
temp = "sensors | grep temp | awk '{print $2}'"

# run script and store output
p=subprocess.Popen(str, shell=True,stdout=subprocess.PIPE)
out, err = p.communicate()

p=subprocess.Popen(temp, shell=True,stdout=subprocess.PIPE)
out2, err2 = p.communicate()

# create dataload 
ram = out.rstrip()
time = datetime.now()
temp = out2.rstrip()

payload = {'RAM':ram, 'TEMP':temp, 'TIME':time}
#print payload

# send HTTP POST request 
r = requests.post('http://httpbin.org/post', data=payload)

print "Content-type:text/html\r\n\r\n"
print "<html>"
print "<head>"
print "<title>TEST</title>"
print "<meta http-equiv='refresh' content='1'>" 
print "</head>"
print "<body>"
print "<h2>RETURN: %s</h2>" % (r.text)
print "</body>"
print "</html>"

【问题讨论】：

标签： python html http format cgi

【解决方案1】：

不要将输出包装在<h2> 中，而是将其包装在<pre> 中。这将使您的换行符保持不变。

【讨论】：