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  Single sign on (SSO) is a one-time authentication login by users. After a user logs in on the identity authentication server once, he / she can gain access to other associated systems and application software in the single sign on system. At the same time, this implementation does not require the ...

1, What is WebSocket WebSocket: communication between client and server WebSocket makes the data exchange between the client and the server easier, allowing the server to actively push data to the client. In the WebSocket API, the browser and server only need to complete one handshake, and they can di ...

Chapter 5 of "Introduction to Flask": learning Flask Sqlalchemy is enough. Don't write too many According to my personal understanding, database is a tool to store data and the direct relationship between data and data. No matter the complexity or size of the data it stores, it has no ess ...

SpringMVC Summary Spring MVC is an excellent Web framework based on MVC design concept provided by Spring for presentation layer, and it is one of the most mainstream MVC frameworks at present.Spring MVC makes POJO the controller for processing requests through a set of MVC annotations without imple ...

About RXTX RXTX is an open source java class library that provides serial and parallel port communication. The files published by this project follow LGPL protocol. RXTX project provides compatibility under windows, Linux, Mac OS X, and Solaris Operating Systems javax.comm The implementation of the ...

Reference article:4 installation methods of R packageR language pack related commandssetRepositoriesR install.packages() set domestic CRAN imageTsinghua University open source software image stationR language - default mirror settingsR package installation and setting image It's very difficult for novic ...

Flask itself is equivalent to a kernel. Almost all other functions need to be extended, which needs to be implemented by third-party extensions. For example, you can use flask extensions to add ORM, form verification tools, file upload, authentication, etc. There is no default database for flask. You ...

1, Loading time in mybatis Question: in one to many, when we have a user, it has 100 accounts. When querying users, do you want to find out the associated accounts? Do you want to find out the associated users when querying accounts?      When querying users, the account information under users shou ...

Start Hibernate from scratch: (Four actual combat codes, step by step, notes and learning content in the code notes, for use by students with a certain foundation) First: Basic (Build) Basic Hibernate development steps: 1. Import the jar package (find the required jar package in the file of hibernate-release-5.0.7.Final\lib) 2. Write mapping ...

Pytest is an easy-to-use, efficient and flexible unit test framework of Python, which can support unit test and function test. This article does not take the introduction of the pytest tool itself as the purpose, but takes an actual API test project as an example, applies the function of pytest to the ...