用Python socket实现一个简单的http服务器（post 与get 的区别）
用Python socket实现一个简单的http服务器（post 与get 的区别）
预备知识：
关于http协议的基础请参考这里。
关于socket基础函数请参考这里。
关于python网络编程基础请参考这里。
废话不多说，前面实现过使用linux c 或者python 充当客户端来获取http 响应，也利用muduo库实现过一个简易http服务器，现在来实现一个python版的简易http服务器，代码改编自http://www.cnblogs.com/vamei/
httpServer.py
Python Code|
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#!/usr/bin/env python #coding=utf-8 import socket import re HOST = '' PORT = 8000 #Read index.html, put into HTTP response data index_content = ''' HTTP/1.x 200 ok Content-Type: text/html ''' file = open('index.html', 'r') index_content += file.read() file.close() #Read reg.html, put into HTTP response data reg_content = ''' HTTP/1.x 200 ok Content-Type: text/html ''' file = open('reg.html', 'r') reg_content += file.read() file.close() #Read picture, put into HTTP response data file = open('http://www.2cto.com/uploadfile/2014/0528/20140528114249220.jpg', 'rb') pic_content = ''' HTTP/1.x 200 ok Content-Type: image/jpg ''' pic_content += file.read() file.close() #Configure socket sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.bind((HOST, PORT)) sock.listen(100) #infinite loop while True: # maximum number of requests waiting conn, addr = sock.accept() request = conn.recv(1024) method = request.split(' ')[0] src = request.split(' ')[1] print 'Connect by: ', addr print 'Request is:\n', request #deal wiht GET method if method == 'GET': if src == '/index.html': content = index_content elif src == '/http://www.2cto.com/uploadfile/2014/0528/20140528114249220.jpg': content = pic_content elif src == '/reg.html': content = reg_content elif re.match('^/\?.*$', src): entry = src.split('?')[1] # main content of the request content = 'HTTP/1.x 200 ok\r\nContent-Type: text/html\r\n\r\n' content += entry content += ' register successs!' else: continue #deal with POST method elif method == 'POST': form = request.split('\r\n') entry = form[-1] # main content of the request content = 'HTTP/1.x 200 ok\r\nContent-Type: text/html\r\n\r\n' content += entry content += ' register successs!' ###### # More operations, such as put the form into database # ... ###### else: continue conn.sendall(content) #close connection conn.close() |
chmod +x httpServer.py, 并运行./httpServer.py
使用浏览器当做客户端访问服务器
在httpServer.py 所在目录有index.html, reg.html, http://www.2cto.com/uploadfile/2014/0528/20140528114249220.jpg
1、访问目录： http://192.168.56.188:8000/index.html
服务器输出：
Connect by: ('192.168.56.1', 6274)
Request is:
GET /index.html HTTP/1.1
Host: 192.168.56.188:8000
Connection: keep-alive
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
User-Agent: Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko)
Chrome/33.0.1750.146 Safari/537.36
Accept-Encoding: gzip,deflate,sdch
Accept-Language: zh-CN,zh;q=0.8,en;q=0.6,zh-TW;q=0.4
回顾代码可知我们给客户端的响应是头部+index.html， index.html如下：
HTML Code|
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Python HTTP Server  |
进而进一步访问http://www.2cto.com/uploadfile/2014/0528/20140528114249220.jpg，由于我们在实现服务器时使用短连接，即响应一次就关掉连接，所以客户端会再发起一次连接，如下：
Connect by: ('192.168.56.1', 6275)
Request is:
GET /http://www.2cto.com/uploadfile/2014/0528/20140528114249220.jpg HTTP/1.1
Host: 192.168.56.188:8000
Connection: keep-alive
Accept: image/webp,*/*;q=0.8
User-Agent: Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko)
Chrome/33.0.1750.146 Safari/537.36
Referer: http://192.168.56.188:8000/index.html
Accept-Encoding: gzip,deflate,sdch
Accept-Language: zh-CN,zh;q=0.8,en;q=0.6,zh-TW;q=0.4
同样地，服务器响应头部+图片的二进制数据，如下图所示：
当然你也可以直接访问 http://192.168.56.188:8000/http://www.2cto.com/uploadfile/2014/0528/20140528114249220.jpg
<喎?http://www.Bkjia.com/kf/ware/vc/" target="_blank" class="keylink">vcD4KPHA+MqGit8POysS/wryjumh0dHA6Ly8xOTIuMTY4LjU2LjE4ODo4MDAwL3JlZy5odG1sPC9wPgo8cD63/s7xxvfK5LP2o7o8L3A+CjxwPkNvbm5lY3QgYnk6ICAo"192.168.56.1', 6282)
Request is:
GET /reg.html HTTP/1.1
Host: 192.168.56.188:8000
Connection: keep-alive
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
User-Agent: Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko)
Chrome/33.0.1750.146 Safari/537.36
Accept-Encoding: gzip,deflate,sdch
Accept-Language: zh-CN,zh;q=0.8,en;q=0.6,zh-TW;q=0.4
同样地，我们把头部+reg.html 响应过去，reg.html 是注册表单如下：
HTML Code|
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|
我们随便填一些信息上去然后点击提交数据，如下图：
此时浏览器会访问 http://192.168.56.188:8000/
服务器输出为：
Connect by: ("192.168.56.1', 6578)
Request is:
POST / HTTP/1.1
Host: 192.168.56.188:8000
Connection: keep-alive
Content-Length: 59
Cache-Control: max-age=0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
Origin: http://192.168.56.188:8000
User-Agent: Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko)
Chrome/33.0.1750.146 Safari/537.36
Content-Type: application/x-www-form-urlencoded
Referer: http://192.168.56.188:8000/reg.html
Accept-Encoding: gzip,deflate,sdch
Accept-Language: zh-CN,zh;q=0.8,en;q=0.6,zh-TW;q=0.4
user=simba&psw=1990&repsw=1990&sex=nan&tech=java&country=cn
注意：即表单中的name=value，以&分隔。
回顾代码，我们只是将浏览器提交的数据体直接发回去，再输出register success! 浏览器输出如下图：
如果我们把 表单中的
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