Python实现简易HTTP服务器:从代码到测试全流程
本文详细介绍如何使用Python脚本实现一个简易的HTTP服务器。通过监听指定IP和端口,接收浏览器请求并返回本地HTML文件内容。文章包含完整的server.py代码、index.html示例以及终端测试输出,帮助读者理解Socket通信与HTTP协议基础。
背景
编写一个Python脚本,旨在实现基础的HTTP服务器功能:
1. 在浏览器地址栏输入网站地址:172.20.52.163:20014
2. 服务器接收到浏览器的请求后,读取本地index.html文件的内容,并将其回发给浏览器
代码实现
server.py
#!/usr/bin/python import socket import signal import errno from time import sleep def HttpResponse(header,whtml): f = file(whtml) contxtlist = f.readlines() context = ''.join(contxtlist) response = "%s %d\n\n%s\n\n" % (header,len(context),context) return response def sigIntHander(signo,frame): print 'get signo# ',signo global runflag runflag = False global lisfd lisfd.shutdown(socket.SHUT_RD) strHost = "172.20.52.163" HOST = strHost #socket.inet_pton(socket.AF_INET,strHost) PORT = 20014 httpheader = '''\ HTTP/1.1 200 OK Context-Type: text/html Server: Python-slp version 1.0 Context-Length: ''' lisfd = socket.socket(socket.AF_INET,socket.SOCK_STREAM) lisfd.bind((HOST, PORT)) lisfd.listen(2) signal.signal(signal.SIGINT,sigIntHander) runflag = True while runflag: try: confd,addr = lisfd.accept() except socket.error as e: if e.errno == errno.EINTR: print 'get a except EINTR' else: raise continue if runflag == False: break; print "connect by ",addr data = confd.recv(1024) if not data: break print data confd.send(HttpResponse(httpheader,'index.html')) confd.close() else: print 'runflag#',runflag print 'Done'
index.html
<html> <head> <title>Python Server</title> </head> <body> <h1>Hello python</h1> <p>Welcom to the python world</br> </body> </html>
测试
测试结果:
root@cloud2:~/slp/pythonLearning/socket# ./server_v1.py connect by ('172.20.52.110', 6096) GET / HTTP/1.1 Host: 172.20.52.163:20014 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 5.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/33.0.1750.154 Safari/537.36 Accept-Encoding: gzip,deflate,sdch Accept-Language: zh-CN,zh;q=0.8,en;q=0.6
浏览器

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