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session management Shiro provides a complete enterprise level session management function, independent of the underlying container (such as web container tomcat), which can be used in both Java Se and Java EE environments. It provides session management, session event monitoring, session storage / persistence, container independent clustering, ...

python file processing -- document restriction edit clear password widget Usage scenarios When using ofice document editing, set the password of document restriction editing, sometimes forget the password, causing trouble. This tool is developed by python to restrict editing and clearing passwords. Yo ...

Update: March 7, 2020 Hardware prerequisites for the development of WeChat public number: (1) Apply for a public number (2) Server with public network ip (preferably Ali cloud, Tencent cloud, etc.) (3) Resolve to (2) Domain name of server address (Ali cloud, Tencent cloud purchase). 1. WeChat Public N ...

This article mainly introduces mybatis and its simple use, which is very simple. The relevant content is not in-depth, nor in-depth study of its principle. The focus is on how to use it. There may be some small problems in some places. Please forgive me a lot. Thank you~ 1, About Mybatis MyBatis is a ...

Article directory 1. What is spring MVC? 2. Create your first spring MVC project 2.1. Create a maven project first, and add the support of web Framework 2.2. Configure the server 2.3 code subject 2.3.1 import dependency and add resource filter 2.3.2. Configuration of web.xml 2.3.3. Configure the sp ...

There are two types of beans in Spring, one is a normal bean, the other is a factory bean: Bean factory is a factory used to manage beans. All beans are managed by BeanFactory (i.e. IOC container) FactoryBean is a factory Bean that can produce or decorate objects. Its implementation is similar to the ...

Introduction to AlarmManager The AlarmManager class provides an interface to the system alarm service. You can set up a wake-up function for your app at a certain time in the future. When the alarm clock rings, the system actually sends out a broadcast registered for the alarm clock, which will automati ...

Crawl all the information of Cat's Eye, mainly refer to the movie information and actors information in the movie list, such as the interface below. There are two difficulties when crawling.One: Font encryption (now seems to have a newer mechanism, but it is not possible to use the online method); ...

5.vins_estimator Basically, most of the functions in VINS are under this package, including IMU data processing (front end), initialization (I think it may belong to front end), sliding window (back end), nonlinear optimization (back end), key frame selection (part of content) (front end). When I firs ...

Catalog CRUD Operation of MyBatis 2. MyBatis Expansion 1. Alias Configuration Processing 1.2, Custom Alias 1.3. Aliases that come with the system 2. Attribute Configuration Processing 3. Query Result Mapping 3.1. How to alias fields 3.2, resultMap element 4. Mapper Components 4.1, Mapper ...