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Preface In today's web development, the authentication of security rights has always played an important role, so Spring has also produced its own security module, but this is a relatively heavy framework, configuration is quite cumbersome. Later, shiro, a lightweight security framework, emerged. The ...

Using spring boot + mybatis + RabbitMQ + redis to simulate the second kill function of the mall First, we need to install RabbitMQ. Before installing RabbitMQ, we need to install Erlang, because RabbitMQ is based on Erlang. For specific steps, click the following link: After installation, RabbitMQ i ...

Classification management module Data table structure design Classification table CREATE TABLE,mmall_ category' ( 'id' int(11) NOT NULL AUTO_ INCREMENT COMMENT ' category Id'， 'parent_ id' int(11) DEFAULT NULL COMMENT 'Parent category id When id=0 Time description is the root node,Class I' , 'name' varchar(50) DEFAULT NULL COMMENT ' Category n ...

Chapter 1: building an integrated environment 1. Build an integrated environment Integration Description: there are many ways to integrate SSM. We will choose XML + annotation The idea of integration Build an integrated environment first First, set up the Spring configuration Using Spring to ...

Chapter 4 MyBatis mapping file 4.1 introduction to mybatis mapping file The real power of MyBatis lies in its mapping statement and its magic. Because of its extraordinary power, the XML file of mapper is relatively simple. If you compare it with JDBC code with the same function, you will immediate ...

MyBatis delayed loading Introduction In the previous article, multi table query is introduced. In practice, we often involve multi table joint query, but sometimes, not all query results will be used immediately. Let me give two examples: For example, to query the purchase details of a batch of notebook computers, instead of directly displayi ...

Easycode is a plug-in of idea, which can generate entity,controller,service,dao,mapper directly to the data table. It is simple and powerful without any coding. 1. Installation (EasyCode) My words here are already loaded. I suggest you install a plug-in called Lombok. Lombok can automatically generate constructor, getter/setter, equals, hashco ...

Java reflection mechanism is a very powerful function, which can be seen in many large projects such as spring and mybatis. Through the reflection mechanism, we can get the type information of the object during running. With this feature, we can implement design patterns such as factory pattern and agen ...

1. Create a new Spring Boot project The specific steps are as follows Select the appropriate dependency: Under src/main/resources of the spring boot project, the application.properties file exists by default. This is the configuration file of the spring boot project. Almost all related configurations ...

Article Directory MyBatis Interface Binding Scheme and Multi-parameter Passing map mode for multiparameter transfer Interface Binding Interface for multiparameter delivery MyBatis Interface Binding Scheme and Multi-parameter Passing In addition and deletion checks of MyBatis, it is found that ...