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Shiro address: https://shiro.apache.org/ reference resources: Crazy God says Java Springboot 1, Construction project 1.1 configuration dependency Select the Springboot project to build, and select the web and thymeleaf templates. Spring boot starter thymeleaf, spring boot starter web and spring boot starter test will be imported automati ...

Basic introduction Flowable definition Flowable is a lightweight business process engine written in Java and open source using Apache V2 license protocol. In October 2016, the main developer of Activiti workflow engine left Alfresco and started the flowable open source project on the basis of Activiti branch. The first Flowable release ve ...

Mybatis generator source code learning and modification Required jar package: generator-mybatis-generator-1.3.2.jar Background: The company's database is divided into sub databases. During query, the customerId must be modified, otherwise the query efficiency will become low. The database table 60 +, almost every table of the new projec ...

preface In the previous two chapters, brother one by one   We have realized the function of adding graphic verification code verification in Spring Security. In fact, the functions of Spring Security are not only these, but also many other effects, such as automatic login, logout and login. Some small partners will ask, why should we rea ...

Tip: after the article is written, the directory can be generated automatically. Please refer to the help document on the right for how to generate it 1, What is the time complexity? The algorithm takes the highest order after adding the calculation times, ignoring the constant and the rest If sorting is selected, n+n-1+n-2 + The calcu ...

background Before Java introduces generics, programmers can build a collection with element type Object, which can store any data type Object. In the process of using this collection, programmers need to know the data type of each element, otherwise ClassCastException is easy to occur. Such as the following cases: package fanxing; impor ...

Create pattern Singleton mode Singleton Pattern is one of the simplest design patterns in Java. This type of design pattern is a creation pattern, which provides the best way to create objects. This pattern involves a single class that is responsible for creating its own objects while ensuring that only a single object is created. This clas ...

         There are many methods of virtual machine allocation strategy in cloud computing. Now it is placed in the cloudsim project package with scheduling methods such as Random allocation, first fit, best fit and RoundRobin. The optimization process of virtual machine scheduling problem can also refer t ...

@Introduction to Autowired annotation @Autowired annotation, which can label class member variables, methods and constructors to complete automatic assembly. Use @ Autowired to eliminate set and get methods. Before using @ Autowired, we use this when configuring properties on a bean <property name="Attribute name" value=" Attribute value"/ ...

Appearance Mode (Facade Mode) Definition Here's a reference from Chapter 7 of Headfirst Design Patterns Appearance patterns provide a unified interface for accessing a group of interfaces in a subsystem. Appearance defines a high-level interface that makes subsystems easier to use. Advantages and disadvantages The following references ...