python下的web服务器模块

python下的web服务模块有三种:

　　BaseHTTPServer: 提供基本的Web服务和处理器类，分别是HTTPServer和BaseHTTPRequestHandler

　　SimpleHTTPServer: 包含执行GET和HEAD请求的SimpleHTTPRequestHandler类

　　CGIHTTPServer: 包含处理POST请求和执行CGIHTTPRequestHandler类。

下面是CGIHTTPServer类示例：

 root@u254:~/cp# tree
 .
 |-- cgi-bin
 |   |-- get_info.py
 |   |-- get_info.pyc
 |   `-- hick.py
 `-- http.py

 http.py
 #!/usr/bin/python
 #encoding=utf-8
 #supported by python2.7

 import sys
 from CGIHTTPServer import CGIHTTPRequestHandler
 from BaseHTTPServer import HTTPServer
 server_addr = ('192.168.2.18', 20014)
 httpd = HTTPServer(server_addr, CGIHTTPRequestHandler)
 httpd.serve_forever()

 hick.py
 #!/usr/bin/python
 #encoding=utf-8
 #supported python2.7

 import cgi
 import sys
 form = cgi.FieldStorage()
 name = form["access"].value   #获取get传递的参数 

 print "HTTP/1.0 200 OK"
 print "Content-Type:text/html"
 print ""
 print ""
 print "name %s"% name　　
 print ""

执行效果图如下：　　

SimpleHTTPServer示例：

 root@u254:~/cp# tree
 .
 |-- get_info.py
 |-- get_info.pyc
 `-- http2.py

 get_info.py如下：
 #!/usr/bin/python
 #encoding=utf-8
 #supported python2.7

 import commands
 import json

 def GetInfo(id):
         cmd = "radosgw-admin -c /etc/ceph/ceph.conf bucket stats  --uid="+ str(id) +" --categories={}"
         #cmd = "radosgw-admin bucket stats  --uid=37 --categories={} --access=radosgw-admin  --access-key=37 --secret=IXJcIub8Zprn7Vu+Tm3VId0LdrnMCfgpZ6sSb9zc"
         dict_t = {}
         content = commands.getoutput(cmd)
         #print content
         if content.find(")") != -1:
                 en_json = json.loads(content.split(')')[1])
         else:
                 en_json = json.loads(content)
         for element in en_json:
                 if "bucket" in element.keys() and "usage" in element.keys():
                         #print element["bucket"]
                         if "rgw.main" in element["usage"].keys() and "size_kb_actual" in element["usage"]["rgw.main"].keys():
                                 #print element["usage"]["rgw.main"]["size_kb_actual"]
                                 dict_t.setdefault(element["bucket"], element["usage"]["rgw.main"]["size_kb_actual"])
                         else:
                                 dict_t.setdefault(element["bucket"], 0)
         #print json.dumps(dict_t)
         return json.dumps(dict_t) 

 if __name__ == "__main__":
     GetInfo(37)

 http2.py如下：
 #!/usr/bin/pyton
 #encoding=utf-8
 #supported by python2.7

 #encoding=utf-8
 from BaseHTTPServer import BaseHTTPRequestHandler, HTTPServer
 import io,shutil
 import urllib,time
 import sys
 sys.path.append(r'./')
 import getopt,string
 import get_info

 class MyRequestHandler(BaseHTTPRequestHandler):
     def do_GET(self):
         self.process(2)
     def do_POST(self):
         self.process(1)

     def process(self,type):
         content =""
         if type==1:
             datas = self.rfile.read(int(self.headers['content-length']))
             datas = urllib.unquote(datas).decode("utf-8", 'ignore')
             datas = transDicts(datas)
             if datas.has_key('data'):
                 content = "data:"+datas['data']+"\r\n"

         if '?' in self.path:
             query = urllib.splitquery(self.path)
             action = query[0]
             if query[1]:
                 queryParams = {}
                 for qp in query[1].split('&'):
                     kv = qp.split('=')
                     print kv[1]
                     kv[1] = get_info.GetInfo(kv[1])
                     queryParams[kv[0]] = urllib.unquote(kv[1]).decode("utf-8", 'ignore')
                     #content+= kv[0]+':'+queryParams[kv[0]]+"\r\n"
                     content+= queryParams[kv[0]]+"\r\n"

             enc="UTF-8"
             content = content.encode(enc)
             f = io.BytesIO()
             f.write(content)
             f.seek(0)
             self.send_response(200)
             self.send_header("Content-type", "text/html; charset=%s" % enc)
             self.send_header("Content-Length", str(len(content)))
             self.end_headers()
             shutil.copyfileobj(f,self.wfile)
 def transDicts(params):
     dicts={}
     if len(params)==0:
         return
     params = params.split('&')
     for param in params:
         dicts[param.split('=')[0]]=param.split('=')[1]
     return dicts

 if __name__=='__main__':
    try:
         server = HTTPServer(('203.156.196.254', 20014), MyRequestHandler)
         print 'started httpserver...'
         server.serve_forever()
    except KeyboardInterrupt:
         server.socket.close()
    pass

效果如下：