SpringBoot配置redis和分布式session-redis

springboot项目 和传统项目 配置redis的区别，更加简单方便，在分布式系统中，解决sesssion共享问题，可以用spring session redis。

1、pom.xml

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

2、rdis配置类类

import org.springframework.beans.factory.annotation.Value;
import org.springframework.cache.annotation.CachingConfigurerSupport;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import redis.clients.jedis.JedisPoolConfig;
import redis.clients.jedis.JedisShardInfo;
import redis.clients.jedis.ShardedJedisPool;

import java.util.ArrayList;
import java.util.List;

@Configuration
public class RedisConfig extends CachingConfigurerSupport {

    @Value("${redis.host}")
    private String host;
    @Value("${redis.port}")
    private Integer port;
    @Value("${redis.maxTotal}")
    private Integer maxTotal;
    @Value("${redis.maxIdle}")
    private Integer maxIdle;
    @Value("${redis.maxWaitMillis}")
    private Long maxWaitMillis;

    @Bean
    public ShardedJedisPool shardedJedisPool() {
        JedisPoolConfig jedisPoolConfig = new JedisPoolConfig();
        jedisPoolConfig.setMaxTotal(maxTotal);
        jedisPoolConfig.setMaxIdle(maxIdle);
        jedisPoolConfig.setMaxWaitMillis(maxWaitMillis);
        List<JedisShardInfo> jedisShardInfos = new ArrayList<>();
        jedisShardInfos.add(new JedisShardInfo(host,port));
        return  new ShardedJedisPool(jedisPoolConfig, jedisShardInfos);
    }

}

3、session redis 配置类

import org.springframework.context.annotation.Configuration;
import org.springframework.session.data.redis.config.annotation.web.http.EnableRedisHttpSession;


/**
 * session共享
 */
@Configuration
@EnableRedisHttpSession(maxInactiveIntervalInSeconds=60*60)
public class RedisSessionConfig {

}