A 400 Bad Request Error occurs when a request sent to the website server is incorrect or corrupt, and the server receiving the request can’t understand it. Occasionally, the problem is on the website itself, an
error code.Example::@app.errorhandler(404)defpage_not_found(error):return'This page does not exist',404You can also register handlersforarbitrary exceptions::@app.errorhandler(DatabaseError)defspecial_exception_handler(error):return'Database connection failed',500..versionadded::0.7Use:meth:`regist...
# return "index page", 400, [("Programme_L", "python"), ("Locality", "Harbin")] # return "index page", 400, {"Programme_L": "python", "Locality": "Harbin"} # return "index page", "666 userDefined status", {"Programme_L": "python", "Locality": "Harbin"} # return "index...
rv.status_code = status # extend existing headers with provided headers ifheaders: rv.headers.update(headers)# type: ignore[arg-type] returnrv cast()函数的源码如图所示 defcast(typ, val): """Cast a value to a type. This returns the value unchanged. To the type checker this signals that...
" The tuple must have the form (body, status, headers)," " (body, status), or (body, headers)." ) # the body must not be None if rv is None: raise TypeError( f"The view function for {request.endpoint!r} did not" " return a valid response. The function either returned" ...
( url=rUrl, headers=headers, params=rParams, # 通过 params 参数传递请求参数 allow_redirects=False, timeout=10 ) if response.status_code in (200, 302): try: if response.status_code == 302: redirect_url = response.headers.get('Location') return {"code": 200, "status...
resp.status="999 userDefined"#设置状态码resp.headers["city"] ="Harbin"#设置响应头returnrespif__name__=='__main__': app.run(host='0.0.0.0', debug=True) 这里只给大家展示用make_response 响应的结果: 返回json 数据 在学习Python的时,其中有一个json模块可以帮我们将字典数据转换成 json字符串【...
Return type: int | None send_static_file(filename)¶ The view function used to serve files from static_folder. A route is automatically registered for this view at static_url_path if static_folder is set. Note this is a duplicate of the same method in the Flask class. Changelog Added...
The return value from a view function is automatically converted into a response object for you. —— Flask docs 我们知道 HTTP 响应分为三个部分: 状态栏(HTTP 版本、状态码和说明)、头部(以冒号隔开的字符对,用于各种控制和协商)、body(服务端返回的数据)。比如下面访问博客首页的响应: ...
instead of HTML for HTTP errors."""# start with the correct headers and status code from the errorresponse=e.get_response()# replace the body with JSONresponse.data=json.dumps({"code":e.code,"name":e.name,"description":e.description,})response.content_type="application/json"returnresponse...