有时候想使用一个简单的REST接口通过网络远程控制或访问你的应用程序，但是又不想自己去安装一个完整的web框架。
#resty.py import cgi def notfound_404(environ, start_response): start_response('404 Not Found', [('Content-type', 'text/plain')]) return [b'Not Found'] class PathDispatcher: def __init__(self): self.pathmap = {} def __call__(self, environ, start_response): path = environ['PATH_INFO'] params = cgi.FieldStorage(environ['wsgi.input'], environ=environ) method = environ['REQUEST_METHOD'].lower() environ['params'] = {key: params.getvalue(key) for key in params} handler = self.pathmap.get((method, path), notfound_404) return handler(environ, start_response) def register(self, method, path, function): self.pathmap[method.lower(), path] = function return function #processor.py
import time
_hello_resp = '''\
<html>
<head>
<title>Hello {name}</title>
</head>
<body>
<h1>Hello {name}!</h1>
</body>
</html>'''
def hello_world(environ, start_response):
start_response('200 OK', [('Content-type', 'text/html')])
params = environ['params']
resp = _hello_resp.format(name=params.get('name'))
yield resp.encode('utf-8')
_localtime_resp = '''\
<?xml version="1.0"?>
<time>
<year>{t.tm_year}</year>
<month>{t.tm_mon}</month>
<day>{t.tm_mday}</day>
<hour>{t.tm_hour}</hour>
<minute>{t.tm_min}</minute>
<second>{t.tm_sec}</second>
</time>'''
def localtime(environ, start_response):
start_response('200 OK', [('Content-type', 'application/xml')])
resp = _localtime_resp.format(t=time.localtime())
yield resp.encode('utf-8')
def welcome(environ, start_response):
start_response('200 OK', [('Content-type', 'text/html')])
resp = "Welcome"
yield resp.encode("utf-8")
if __name__ == '__main__':
from resty import PathDispatcher
from wsgiref.simple_server import make_server
# Create the dispatcher and register functions
dispatcher = PathDispatcher()
dispatcher.register('GET', '/hello', hello_world)
dispatcher.register('GET', '/localtime', localtime)
dispatcher.register('GET', '/welcome', welcome)
# Launch a basic server
httpd = make_server('127.0.0.1', 8080, dispatcher)
print('Serving on port 8080...')
httpd.serve_forever()
测试可通过浏览器访问响应的地址以查看效果
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