如何为 Flask 中的所有 HTTP 错误实现自定义错误处理程序? [英] How can I implement a custom error handler for all HTTP errors in Flask?
问题描述
在我的 Flask 应用程序中,我可以通过为每个错误代码添加 errorhandler
装饰器来轻松扩展由单个自定义错误处理程序处理的错误列表
In my Flask app, I can easily expand the list of errors handled by a single custom error handler by adding errorhandler
decorators for each error code as with
@application.errorhandler(404)
@application.errorhandler(401)
@application.errorhandler(500)
def http_error_handler(error):
return flask.render_template('error.html', error=error), error.code
然而,这种方法需要为每个错误代码显式装饰.有没有办法装饰我的(单个)http_error_handler
函数,以便它处理所有 HTTP 错误?
However this approach requires an explicit decorator for each error code. Is there a way decorate my (single) http_error_handler
function so that it handles all HTTP errors?
推荐答案
您不是唯一的一个,一种解决方法是指定您正在捕获并绑定到 application.error_handler_spec 的 http 错误代码列表,然后删除装饰器,如下所示:
You're not the only one, one workaround will be specifying the list of the http error code you're catching and bound to application.error_handler_spec, and drop the decorators, like this:
def http_error_handler(error):
return flask.render_template('error.html', error=error), error.code
for error in (401, 404, 500): # or with other http code you consider as error
application.error_handler_spec[None][error] = http_error_handler
我知道不理想和丑陋,但它会起作用,我确实希望其他人可以提出更好的解决方案.希望这会有所帮助.
Not ideal and ugly I know, but it will work and I do hope someone else can come with a better solution. Hope this helps.
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