spring boot +redis 連接池配置 及運用

連接池參數，正式環境配置在yml文件中

package cn.com.suntree.utils.myself;

import lombok.extern.log4j.Log4j2;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.cache.annotation.CachingConfigurerSupport;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import redis.clients.jedis.JedisPool;
import redis.clients.jedis.JedisPoolConfig;

@Configuration
@EnableCaching
@Log4j2
public class RedisCacheConfiguration extends CachingConfigurerSupport {


   //@Value("${spring.redis.host}")
    private String host = "127.0.0.1";

    //@Value("${spring.redis.port}")
    private int port = 6379;

    private int timeout = 10;

    //@Value("${spring.redis.pool.max-idle}")
    private int maxIdle = 8;//最大能夠保持idle的數量，控制一個pool最多有多少個狀態爲idle的jedis實例

    // @Value("${spring.redis.pool.max-wait}")
    private long maxWaitMillis = -1;//getBlockWhenExhausted爲true時，連接會阻塞，超過了阻塞的時間（設定的maxWaitMillis，單位毫秒）時會報錯

    private int maxTotal = 100;//在指定時刻通過pool能夠獲取到的最大的連接的jedis個數

    // @Value("${spring.redis.password}")
    private String password = "yourpw";

    @Bean
    public JedisPool redisPoolFactory() {
        log.info("JedisPool注入成功！！");
        log.info("redis地址：" + host + ":" + port);
        JedisPoolConfig jedisPoolConfig = new JedisPoolConfig();
        jedisPoolConfig.setMaxIdle(maxIdle);
        jedisPoolConfig.setMaxTotal(maxTotal);
        jedisPoolConfig.setMaxWaitMillis(maxWaitMillis);
        jedisPoolConfig.setMinEvictableIdleTimeMillis(100);//逐出連接的最小空閒時間 默認1800000毫秒(30分鐘)
        jedisPoolConfig.setTimeBetweenEvictionRunsMillis(200); //逐出掃描的時間間隔(毫秒) 如果爲負數,則不運行逐出線程, 默認-1
        JedisPool jedisPool = new JedisPool(jedisPoolConfig, host, port, timeout, password);

        return jedisPool;
    }

}

獲取連接

@Component
public class JedisUtils {

    @Autowired
    JedisPool jedisPool;
 public Jedis getJedis() {
  return jedisPool.getResource();
    }

運用，一定要關閉！！！

 Jedis jedis = null;
            try {
                jedis = jedisUtils.getJedis();
                jedis.set(remind.getRemindTm(), JSON.toJSONString(remind));
            } finally {
                if (jedis != null) {
                    jedis.close();
                }
            }