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Login based on blueprint CBV mode Use blueprint and cbv mode to complete login function Jump to the home page after login Save the session in the redis database on liunx Verify whether it is the login user by using "before" request blueprint from flask import Blueprint,render_template,redirect,views,request,session user = B ...

I. Case initialization Related folders public: static resources model: database related files Route: route views: template files Build project description file npm init -y Download third party module npm i express mongoose art-template express-art-template Create server const express = require ...

Rabbitmq is a popular open source message queuing system, which is developed in erlang. The default port number is 5672, while the default port number of its background management system is 15672. The content of this blog post is an entry program used by rabbitmq, including message producers and cons ...

I. what is trigger trigger is a method provided by SQL server to programmers and data analysts to ensure data integrity. It is a special stored procedure related to table events. Its execution is not called by programs or started manually, but triggered by events. (--- from Baidu Encyclopedia) Simp ...

Extend KafkaConnect Sink with Apache Kudu client. Java client of Apache Kudu used. Suddenly one day, I found that the job could not be submitted, and I kept reporting an error. Later, it was found that this is a verification mechanism of Kudu itself. In order to ignore this verification mechanism, and more in line with our SQL habits, I have ...

AJAX for Java Web Learning What I bring you today is AJAX project analysis. AJAX = Asynchronous JavaScript and XML. The biggest advantage of AJAX is that it can exchange data with the server and update part of the web content without reloading the whole page. Brief introduction of project content: wha ...

What is the Facade? At present, it is a class that is used to facilitate the static method call of the original class (undefined static method).The specific implementation of Facade is as follows:First look at the core document:\thinkphp\base.php`//Register static proxy of core classFacade::bind([ facade\App::class => App::class, facade ...

The parent class of observer and follower when learning defines common properties and methods Subclasses Follower and Observer Internal class: PacketInFlight indicates that there is no commit message in the proposal static class PacketInFlight { TxnHeader hdr; Record rec; } Properties: QuorumPeer Server node LearnerZooKeep ...

As the first request processor of leader, PrepRequestProcessor can identify whether the current client request is a transaction request. If so, it will carry out a series of preprocessing, create the request transaction header, transaction body, session detection, ACL check and version detection. attribute   Construction method Method Subm ...

Problem: the front-end cross domain access to the back-end interface does not carry cookie s by default under the browser's security policy, so each request opens a new session. When we print the sessionID in the background, we will find that the sessionID of each request is different. Since each request is a new session, it is naturally null ...