Python 带有自定义实例的 BaseHTTPRequestHandler

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时间:2020-08-19 10:46:22  来源:igfitidea点击:

BaseHTTPRequestHandler with custom instance

pythonhttpserverbasehttpserverrequesthandlerbasehttprequesthandler

提问by Peter

this is my http server:

这是我的 http 服务器:

from BaseHTTPServer import BaseHTTPRequestHandler,HTTPServer

class test:
    def show(self):
        return "aaaa"

class http_server:
    def __init__(self, t1):
        self.t1 = t1
        server = HTTPServer(('', 8080), myHandler)
        server.serve_forever()

class myHandler(BaseHTTPRequestHandler):
    def do_GET(self):
        self.send_response(200)
        self.send_header('Content-type','text/html')
        self.end_headers()
        self.wfile.write(self.t1.show()) #Doesnt work
        return

class main:
    def __init__(self):
        self.t1 = test()
        self.server = http_server(self.t1)

if __name__ == '__main__':
    m = main()

I need to acces instance t1 inside of myHander.

我需要访问 myHander 中的实例 t1。

Is there any way how to do it ?

有什么办法吗?

Thanks!

谢谢!

采纳答案by Philippe T.

there a way to do it is to set the property to the class :

有一种方法是将属性设置为类:

from BaseHTTPServer import BaseHTTPRequestHandler,HTTPServer

class test:
    def show(self):
        return "aaaa"

class http_server:
    def __init__(self, t1):
        myHandler.t1 = t1
        server = HTTPServer(('', 8080), myHandler)
        server.serve_forever()

class myHandler(BaseHTTPRequestHandler):
    t1 = None
    def do_GET(self):
        self.send_response(200)
        self.send_header('Content-type','text/html')
        self.end_headers()
        self.wfile.write(self.t1.show()) #Doesnt work
        return

class main:
    def __init__(self):
        self.t1 = test()

        self.server = http_server(self.t1)

if __name__ == '__main__':
    m = main()

You have to be careful that's every where you use myHandler that's will be the same instance of t1

你必须小心,你使用 myHandler 的每个地方都将是 t1 的相同实例

回答by rsmoorthy

Slightly better version, where t1 will not be the same for each instance.

稍微好一点的版本,其中每个实例的 t1 都不相同。

from BaseHTTPServer import BaseHTTPRequestHandler,HTTPServer

class test:
    def show(self):
        return "aaaa"

class http_server:
    def __init__(self, t1):
        def handler(*args):
            myHandler(t1, *args)
        server = HTTPServer(('', 8080), handler)
        server.serve_forever()

class myHandler(BaseHTTPRequestHandler):
    def __init__(self, t1, *args):
        self.t1 = t1
        BaseHTTPRequestHandler.__init__(self, *args)

    def do_GET(self):
        self.send_response(200)
        self.send_header('Content-type','text/html')
        self.end_headers()
        self.wfile.write(self.t1.show()) #Doesnt work
        return

class main:
    def __init__(self):
        self.t1 = test()

        self.server = http_server(self.t1)

if __name__ == '__main__':
    m = main()

回答by XaF

I know I'm answering pretty late, but that could probably be helpful for future viewers. There is a really easy way to access t1like it was asked by using the servervariable of the BaseHTTPRequestHandlerobject:

我知道我回答得很晚,但这可能对未来的观众有所帮助。有一种非常简单的访问方法,t1就像使用对象的server变量所要求的那样BaseHTTPRequestHandler

from BaseHTTPServer import BaseHTTPRequestHandler,HTTPServer

class test:
    def show(self):
        return "aaaa"

class http_server:
    def __init__(self, t1):
        server = HTTPServer(('', 8080), myHandler)
        server.t1 = t1
        server.serve_forever()

class myHandler(BaseHTTPRequestHandler):
    def do_GET(self):
        self.send_response(200)
        self.send_header('Content-type','text/html')
        self.end_headers()
        self.wfile.write(self.server.t1.show())
        return

class main:
    def __init__(self):
        self.t1 = test()
        self.server = http_server(self.t1)

if __name__ == '__main__':
    m = main()