Redis習慣使用 Json格式來儲存了，spring-session 2.0 開始網上找的方法已經都不適用了，文件裡也沒說清楚，通過分析原始碼最後解決。

這裡簡單介紹一下我的解決方法

1、pom依賴

<dependency>
    <groupId>org.springframework.session</groupId>
    <artifactId>spring-session-data-redis</artifactId>
</dependency>
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
<dependency>
    <groupId>org.apache.commons</groupId>
    <artifactId>commons-pool2</artifactId>
</dependency>
 

2、配置yml

server:
  port: 8080
  servlet:
    session:
      timeout: 1d
spring:
  session:
    store-type: redis
    redis:
      flush-mode: on_save
      namespace: session
  redis:
      port: 6379
      host: ip
      password: pwd
      database: 1
      timeout: 1s
      lettuce:
        pool:
          max-active: 8
          max-idle: 8
          min-idle: 0
          max-wait: -1ms
 

3、自定義SessionConfiguration 類

import lombok.extern.log4j.Log4j2;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.serializer.GenericJackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.RedisSerializer;

@Log4j2
@Configuration
public class SessionConfiguration {

    @Bean("springSessionDefaultRedisSerializer")
    public RedisSerializer<Object> defaultRedisSerializer(){
        log.debug("自定義Redis Session序列化載入成功");
        return valueSerializer();
    }

    private RedisSerializer<Object> valueSerializer() {
        return new GenericJackson2JsonRedisSerializer();
    }

}