Question

我的问题很简单，非常简单。当我在浏览器上键入localhost：9999 / ok.jpg时，我的服务器运行不会显示图像。我可能会遗漏一些服务器设置的概念。

以下是代码：

import socket
import threading
import socketserver
import os

class MyHandler(socketserver.BaseRequestHandler):

def do_HEAD(self):
    self.send_response(200)
    self.send_header("Content-type", "image/jpg")
    self.end_headers()

def do_GET(self):
    self.send_response(200)
    self.send_header("Content-type", "image/jpg")
    self.end_headers() 
    f = open('ok.jpg', 'rb')
    self.wfile.write(f.read())
    f.close()


class MyServer(socketserver.ThreadingMixIn, socketserver.TCPServer):
    def __init__(self, server_adress, RequestHandlerClass):
        self.allow_reuse_address = True
        socketserver.TCPServer.__init__(self, server_adress, RequestHandlerClass, False)

if __name__ == "__main__":
    HOST, PORT = "localhost", 9999
    server = MyServer((HOST, PORT), MyHandler)
    server.server_bind()
    server.server_activate()
    server_thread = threading.Thread(target=server.serve_forever)
    server_thread.start()

感谢您提供任何可能的帮助。

Answer 1

从您的do_GET和do_HEAD方法判断，您似乎真的希望MyHandler扩展BaseHTTPRequestHandler http://docs.python.org/2/library/basehttpserver.html#BaseHTTPServer.BaseHTTPRequestHandler

BaseRequestHandler不知道HTTP（这是您的浏览器使用的）。

Answer 2

更好地使用SimpleHTTPServer：

import SimpleHTTPServer
import SocketServer as socketserver
import os
import threading

class MyHandler(SimpleHTTPServer.SimpleHTTPRequestHandler):
    path_to_image = 'ok.jpg'
    img = open(path_to_image, 'rb')
    statinfo = os.stat(path_to_image)
    img_size = statinfo.st_size
    print(img_size)

def do_HEAD(self):
    self.send_response(200)
    self.send_header("Content-type", "image/jpg")
    self.send_header("Content-length", img_size)
    self.end_headers()

def do_GET(self):
    self.send_response(200)
    self.send_header("Content-type", "image/jpg")
    self.send_header("Content-length", img_size)
    self.end_headers() 
    f = open(path_to_image, 'rb')
    self.wfile.write(f.read())
    f.close()         

class MyServer(socketserver.ThreadingMixIn, socketserver.TCPServer):
    def __init__(self, server_adress, RequestHandlerClass):
        self.allow_reuse_address = True
        socketserver.TCPServer.__init__(self, server_adress, RequestHandlerClass, False)

if __name__ == "__main__":
    HOST, PORT = "localhost", 9999
    server = MyServer((HOST, PORT), MyHandler)
    server.server_bind()
    server.server_activate()
    server_thread = threading.Thread(target=server.serve_forever)
    server_thread.start()

Python服务器能够在浏览器上显示图像

2 个答案: