在开发环境里，静态文件需要经常改动，特别是css，可以用下面方式禁用缓存。
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import tornado.web
class NoCacheStaticFileHandler(tornado.web.StaticFileHandler):
def set_extra_headers(self, path):
self.set_header("Cache-control", "no-cache")
class Application(tornado.web.Application):
def __init__(self):
handlers = [
# ...
url(r"/static/(.*)",
tornado.web.StaticFileHandler if not options.debug else NoCacheStaticFileHandler, {
"path": '/var/www/static'
}, name="static")
下面是我实际中使用的：
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handlers = [
# (r'/static/(.*)', tornado.web.StaticFileHandler, {'path': settings['static_path']})
(r'/static/(.*)', NoCacheStaticFileHandler, {'path': settings['static_path']})
]
其实最简单的方式：
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settings = dict(
static_path=os.path.join(os.path.dirname(__file__), "static"),
xsrf_cookies=True,
cookie_secret=setting.COOKIE_SECRET,
autoescape=None,
login_url='/oauth/sign-in',
debug=True, # here
)
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