简介：

引入依赖

 <!-- 引入Redis -->
 <dependency>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-data-redis</artifactId>
 </dependency>
<!-- session 共享 -->
<dependency>
    <groupId>org.springframework.session</groupId>
    <artifactId>spring-session-data-redis</artifactId>
</dependency>

新增redis配置类

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;

@Configuration
public class RedisConfig {
 
 @Bean
 @SuppressWarnings("all")
    public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory factory) {
        RedisTemplate<String, Object> template = new RedisTemplate<String, Object>();
        template.setConnectionFactory(factory);
        Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);
        ObjectMapper om = new ObjectMapper();
        om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
        om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
        jackson2JsonRedisSerializer.setObjectMapper(om);
        StringRedisSerializer stringRedisSerializer = new StringRedisSerializer();
        // key采用String的序列化方式
        template.setKeySerializer(stringRedisSerializer);
        // hash的key也采用String的序列化方式
        template.setHashKeySerializer(stringRedisSerializer);
        // value序列化方式采用jackson
        template.setValueSerializer(jackson2JsonRedisSerializer);
        // hash的value序列化方式采用jackson
        template.setHashValueSerializer(jackson2JsonRedisSerializer);
        template.afterPropertiesSet();
        return template;
    }
 
}

新增redis配置

spring:  
  session:
    store-type: redis 
  redis:
    database: 3
    ## 服务器地址
    host: 127.0.0.1
    ## Redis服务器连接端口
    port: 6379
    ## 连接超时时间（毫秒）
    #timeout: 3
    ## Redis服务器连接密码（默认为空）
    password: 123456
    ## 连接池中的最大连接数
    poolMaxTotal: 20
    ## 连接池中的最大空闲连接
    poolMaxIdle: 10
    ## 连接池最大阻塞等待时间（使用负值表示没有限制）
    poolMaxWait: 3
    timeout: 1000  #链接超时时间

启动类开启redis-session

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.Bean;
import org.springframework.session.data.redis.config.ConfigureRedisAction;
import org.springframework.session.data.redis.config.annotation.web.http.EnableRedisHttpSession;

@SpringBootApplication
// 开启RedisHttpSession
@EnableRedisHttpSession
public class EasyBootAdminApplication {

    public static void main(String[] args) {
        SpringApplication.run(EasyBootAdminApplication.class, args);
    }

    /**
     *  解决redis集群环境没有开启Keyspace notifications导致的
     *
     *  Error creating bean with name 'enableRedisKeyspaceNotificationsInitializer' defined in class path resource
     *
     * */
    @Bean
    public static ConfigureRedisAction configureRedisAction() {
        return ConfigureRedisAction.NO_OP;
    }
}