如何通过内置的python http服务器提供mp3文件
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我目前正在尝试使用Python提供MP3文件。问题是我只能播放一次MP3。之后，媒体控件停止响应，因此我需要重新加载整个页面才能再次收听MP3。 （在Chrome中测试）
问题：运行以下脚本，并在浏览器中输入http://127.0.0.1/test.mp3，将会返回MP3文件，只有刷新页面后才能播放该文件
笔记：
将页面另存为HTML并直接通过Chrome加载（没有Python服务器）会使问题消失。
用Apache提供文件可以解决该问题，但是这过于矫kill过正：我想使脚本非常易于使用，并且不需要安装Apache。
这是我使用的代码：
import string
import os
import urllib
import socket
# Setup web server import string,cgi,time
import string,cgi,time
from os import curdir, sep
from BaseHTTPServer import BaseHTTPRequestHandler, HTTPServer
import hashlib
class MyHandler(BaseHTTPRequestHandler):
def do_GET(self):
try:
# serve mp3 files
if self.path.endswith(\".mp3\"):
print curdir + sep + self.path
f = open(curdir + sep + self.path, \'rb\')
st = os.fstat( f.fileno() )
length = st.st_size
data = f.read()
md5 = hashlib.md5()
md5.update(data)
md5_key = self.headers.getheader(\'If-None-Match\')
if md5_key:
if md5_key[1:-1] == md5.hexdigest():
self.send_response(304)
self.send_header(\'ETag\', \'\"{0}\"\'.format(md5.hexdigest()))
self.send_header(\'Keep-Alive\', \'timeout=5, max=100\')
self.end_headers()
return
self.send_response(200)
self.send_header(\'Content-type\', \'audio/mpeg\')
self.send_header(\'Content-Length\', length )
self.send_header(\'ETag\', \'\"{0}\"\'.format(md5.hexdigest()))
self.send_header(\'Accept-Ranges\', \'bytes\')
self.send_header(\'Last-Modified\', time.strftime(\"%a %d %b %Y %H:%M:%S GMT\",time.localtime(os.path.getmtime(\'test.mp3\'))))
self.end_headers()
self.wfile.write(data)
f.close()
return
except IOError:
self.send_error(404,\'File Not Found: %s\' % self.path)
from SocketServer import ThreadingMixIn
class ThreadedHTTPServer(ThreadingMixIn, HTTPServer):
pass
if __name__ == \"__main__\":
try:
server = ThreadedHTTPServer((\'\', 80), MyHandler)
print \'started httpserver...\'
server.serve_forever()
except KeyboardInterrupt:
print \'^C received, shutting down server\'
server.socket.close()
没有找到相关结果
已邀请:
2 个回复
呕蹿尉
是单线程的，应使用或支持多个连接。 例如替换行：与from SocketServer import ThreadingMixIn class ThreadedHTTPServer(ThreadingMixIn, HTTPServer): pass server = ThreadedHTTPServer((\'\', 80), MyHandler)播匣扦阔食
或标签...我的（下面）严格是html原型，可以进行改进。 要运行此程序，您只需在shell中运行python可执行文件，然后在8080上浏览到该计算机的ipaddress。如果您是在生产网站上进行此操作，则应该使用lighttpd或apache来提供文件，但是因为这很简单对于实验室使用，嵌入式wsgi参考服务器应该可以。如果要在apache或lighttpd中运行，请替换文件底部的“ 8”行。 另存为mp3.pyfrom webob import Request import re import os import sys #### #### Run with: #### twistd -n web --port 8080 --wsgi mp3.mp3_app _MP3DIV = \"\"\"<div id=\"musicHere\"></div>\"\"\" _MP3EMBED = \"\"\"<embed src=\"mp3/\" loop=\"true\" autoplay=\"false\" width=\"145\" height=\"60\"></embed>\"\"\" _HTML = \'\'\'<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\" \"http://www.w3.org/TR/html4/loose.dtd\"><html><head></head><body> Hello %s %s</body></html> \'\'\' % (_MP3DIV, _MP3EMBED) def mp3_html(environ, start_response): \"\"\"This function will be mounted on \"/\" and refer the browser to the mp3 serving URL.\"\"\" start_response(\'200 OK\', [(\'Content-Type\', \'text/html\')]) return [_HTML] def mp3_serve(environ, start_response): \"\"\"Serve the MP3, one chunk at a time with a generator\"\"\" file_path = \"/file/path/to/test.mp3\" mimetype = \"application/x-mplayer2\" size = os.path.getsize(file_path) headers = [ (\"Content-type\", mimetype), (\"Content-length\", str(size)), ] start_response(\"200 OK\", headers) return send_file(file_path, size) def send_file(file_path, size): BLOCK_SIZE = 4096 fh = open(file_path, \'r\') while True: block = fh.read(BLOCK_SIZE) if not block: fh.close() break yield block def _not_found(environ,start_response): \"\"\"Called if no URL matches.\"\"\" start_response(\'404 NOT FOUND\', [(\'Content-Type\', \'text/plain\')]) return [\'Not Found\'] def mp3_app(environ,start_response): \"\"\" The main WSGI application. Dispatch the current request to the functions andd store the regular expression captures in the WSGI environment as `mp3app.url_args` so that the functions from above can access the url placeholders. If nothing matches call the `not_found` function. \"\"\" # map urls to functions urls = [ (r\'^$\', mp3_html), (r\'mp3/?$\', mp3_serve), ] path = environ.get(\'PATH_INFO\', \'\').lstrip(\'/\') for regex, callback in urls: match = re.search(regex, path) if match is not None: # assign http environment variables... environ[\'mp3app.url_args\'] = match.groups() return callback(environ, start_response) return _not_found(environ, start_response)