Python WSGI 简单实例

通过python wsgi构建简易http服务器，其中根目录下的static存放demo.html、diy.css作为演示

wsgi.py：

from wsgiref.simple_server import make_server

class Application(object):

    def __init__(self, environ, start_response):
        self.start_response = start_response
        self.path = environ['PATH_INFO']

    def __iter__(self):
        if self.path == '/':
            status = '200 OK'
            response_headers = [('Content-type', 'text/html')]
            self.start_response(status, response_headers)
            yield '<h1>Hello,World!</h1>'.encode('utf-8')
        # /test
        elif self.path == '/test':
            status = '200 OK'
            response_headers = [('Content-type', 'text/html')]
            self.start_response(status, response_headers)
            yield '<h1>test,ok!</h1>'.encode('utf-8')
        # /demo
        elif self.path == '/demo':
            status = '200 OK'
            response_headers = [('Content-type', 'text/html')]
            self.start_response(status, response_headers)
            file = open("static/demo.html")
            res = file.read()
            # print(res)
            yield res.encode('utf-8')
        # *.css
        elif self.path.endswith(".css"):
            status = '200 OK'
            response_headers = [('Content-Type', 'text/css; charset=utf-8')]
            self.start_response(status, response_headers)
            print('read css file', "static" + self.path)
            file = open("static" + self.path)
            res = file.read()
            yield res.encode('utf-8')
        # 404
        else:
            status = '404 NOT FOUND'
            response_headers = [('Content-type', 'text/html')]
            self.start_response(status, response_headers)
            yield '<h1>404 NOT FOUND</h1>'.encode('utf-8')


if __name__ == "__main__":
    app = make_server('127.0.0.1', 8000, Application)
    print('Serving HTTP start ...')
    app.serve_forever()

static目录下的demo.html：

<html>
<head>
    <title>Demo</title>
    <link rel="stylesheet" type="text/css" href="diy.css">
</head>
<body>
demo body
<div class="label">bbb</div>
</body>
</html>

static目录下的diy.css：

.label {
  color: red;
  font-size: 30px;
}