uWSGI的安装就不多说了、不懂的参考前面的文章、以下例子都是以http的形式来启动、比如莪的py文件名称叫做return_enviorn.py、那么便是这么来执行、如果迩想查看效果、请打开来查看

./uwsgi --http :9090 --wsgi-file ../program/py_script/return_enviorn.py

 

 

关于uWSGI最简单的形式如下、其中的environ包含了各种从客户端带来的信息

# This is our application object. It could have any name, # except when using mod_wsgi where it must be "application" def application( # It accepts two arguments:       # environ points to a dictionary containing CGI like environment variables       # which is filled by the server for each received request from the client       environ, # start_response is a callback function supplied by the server       # which will be used to send the HTTP status and headers to the server       start_response): # build the response body possibly using the environ dictionary    response_body = 'The request method was %s' % environ['HTTP_USER_AGENT'] # HTTP response code and message    status = '200 OK' # These are HTTP headers expected by the client.    # They must be wrapped as a list of tupled pairs:    # [(Header name, Header value)].    response_headers = [('Content-Type', 'text/plain'),                        ('Content-Length', str(len(response_body)))] # Send them to the server using the supplied function    start_response(status, response_headers) # Return the response body.    # Notice it is wrapped in a list although it could be any iterable.    return [response_body]

假如莪们把environ['HTTP_USER_AGENT']改成environ、则是输出所有信息、比如这样

 

1 The request method was {
    2     'SCRIPT_NAME': '',  3     'REQUEST_METHOD': 'GET',  4     'UWSGI_ROUTER': 'http',  5     'SERVER_PROTOCOL': 'HTTP/1.1',  6     'QUERY_STRING': '',  7     'HTTP_USER_AGENT': 'Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Trident/5.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E; SE 2.X MetaSr 1.0)',  8     'HTTP_CONNECTION': 'Keep-Alive',  9     'SERVER_NAME': 'M12-129', 10     'REMOTE_ADDR': '172.16.1.3', 11     'HTTP_THREADID': '4416', 12     'wsgi.url_scheme': 'http', 13     'SERVER_PORT': '9090', 14     'uwsgi.node': 'M12-129', 15     'wsgi.input': 
     
      , 16     'HTTP_HOST': '172.16.3.129:9090', 17     'wsgi.multithread': False, 18     'REQUEST_URI': '/', 19     'HTTP_ACCEPT': 'image/jpeg, application/x-ms-application, image/gif, application/xaml+xml, image/pjpeg, application/x-ms-xbap, application/x-shockwave-flash, application/msword, application/vnd.ms-powerpoint, application/vnd.ms-excel, */*', 20     'wsgi.version': (1, 0), 21     'wsgi.run_once': False, 22     'wsgi.errors': 
      
       , 23     'wsgi.multiprocess': False, 24     'HTTP_ACCEPT_LANGUAGE': 'zh-CN', 25     'uwsgi.version': '0.9.8.6', 26     'wsgi.file_wrapper': 
       
        , 27     'HTTP_ACCEPT_ENCODING': 'gzip, deflate', 28     'PATH_INFO': '/' 29 }
       
      
     

 可是看出、这个environ里面所包含的信息和CGI的环境变量非常的相似、但又有所不同、比如有包括了UWSGI的路由形式、UWSGI的多线程和多进程情况等等、应该可以说是CGI环境变量的加强版本

 

 

1 #!/usr/bin/env python  2  3 from wsgiref.simple_server import make_server  4 from cgi import parse_qs, escape  5  6 html = """  7   8   9    
     
       10       
      
 11          Age:  12          
 13       
      
 14          Hobbies: 15           Software 16           Auto Tunning 17          
 18       
      
 19           20          
 21       
     
 22    
 23       Age: %s
 24       Hobbies: %s 25       
 26     27 """ 28 29 def application(environ, start_response): 30 31    # Returns a dictionary containing lists as values. 32    d = parse_qs(environ['QUERY_STRING']) 33 34    # In this idiom you must issue a list containing a default value. 35    age = d.get('age', [''])[0] # Returns the first age value. 36    hobbies = d.get('hobbies', []) # Returns a list of hobbies. 37 38    # Always escape user input to avoid script injection 39    age = escape(age) 40    hobbies = [escape(hobby) for hobby in hobbies] 41 42    response_body = html % (age or 'Empty', 43                ', '.join(hobbies or ['No Hobbies'])) 44 45    status = '200 OK' 46 47    # Now content type is text/html 48    response_headers = [('Content-Type', 'text/html'), 49                   ('Content-Length', str(len(response_body)))] 50    start_response(status, response_headers) 51 52    return [response_body] 53 54 httpd = make_server('localhost', 8051, application) 55 # Now it is serve_forever() in instead of handle_request(). 56 # In Windows you can kill it in the Task Manager (python.exe). 57 # In Linux a Ctrl-C will do it. 58 httpd.serve_forever()

 

 

 其中第32行的函数parse_qs()是个解析网页请求参数为数组的冬冬、具体的用法可以看下面的这个例子

1 import urlparse 2 qsdata = "test=test&test2=test2&test2=test3" 3 qs = urlparse.parse_qs(qsdata) 4 print qs

输出：

{
   'test': ['test'], 'test2': ['test2', 'test3']}