Spring Boot, Shiro, and Redis: Implementing Session and Cache Sharing

Spring Boot is a popular Java framework that allows developers to create standalone, production-grade applications with minimal configuration. Shiro is a Java security framework that provides authentication, authorization, and cryptography features. Redis is a in-memory data store that can be used as a cache or message broker. In this article, we will demonstrate how to integrate these three technologies to achieve session sharing and cache sharing.
1. Setting up the Project
First, let’s create a new Spring Boot project using Spring Initializr or your favorite IDE. Select the following dependencies:

• Spring Boot
• Spring Security
• Shiro
• Jedis (Redis client for Java)
  2. Configuring Redis
  Next, we need to configure Redis in our application. Add the following configuration to application.properties or application.yml:
  Properties file:

  spring.redis.host=your_redis_host
  spring.redis.port=your_redis_port
  spring.redis.password=your_redis_password

  YAML file:

  spring:
  redis:
  host: your_redis_host
  port: your_redis_port
  password: your_redis_password

  3. Configuring Shiro
  Now let’s configure Shiro in our application. Create a configuration class and add the following code:

  import org.apache.shiro.spring.web.config.DefaultShiroFilterChainDefinition;
  import org.apache.shiro.spring.web.config.ShiroFilterChainDefinition;\nimport org.apache.shiro.spring.web.ShiroFilterFactoryBean;\nimport org.apache.shiro.mgt.SecurityManager;\nimport org.apache.shiro.session.mgt.DefaultSessionContext;\nimport org.apache.shiro.session.mgt.DefaultSessionKeyGenerator;\nimport org.apache.shiro.session.mgt.SessionContext;\nimport org.apache.shiro.session.mgt.SessionKeyGenerator;\nimport org.apache.shiro.session.mgt.SimpleSessionFactory;\nimport org.apache.shiro.session.mgt.eis.EnterpriseCacheSessionDAO;\nimport org.apache.shiro.session.mgt.eis.SessionDAO;\nimport org.apache.\nimport org.\nimport org.\n