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redis的设置：
redisConfig.java省略了get方法

@Component
@ConfigurationProperties(prefix="redis")
public class RedisConfig {
    private String host;
    private int port;
    private int timeout;//秒
    private String password;
    private int poolMaxTotal;
    private int poolMaxIdle;
    private int poolMaxWait;//秒
}

创建RedisPool的工程方法
RedisPoolFactory.java

@Service
public class RedisPoolFactory {

    @Autowired
    RedisConfig redisConfig;
    
    @Bean
    public JedisPool JedisPoolFactory() {
        JedisPoolConfig poolConfig = new JedisPoolConfig();
        poolConfig.setMaxIdle(redisConfig.getPoolMaxIdle());
        poolConfig.setMaxTotal(redisConfig.getPoolMaxTotal());
        poolConfig.setMaxWaitMillis(redisConfig.getPoolMaxWait() * 1000);
        JedisPool jp = new JedisPool(poolConfig, redisConfig.getHost(), redisConfig.getPort(),
                redisConfig.getTimeout()*1000, redisConfig.getPassword(), 0);
        return jp;
    }
    
}

生成Redis的工具前设置可扩展的存储key方法
设置接口函数KeyPrefix.java写入两个方法用来获取存入的有效时间和自定义前缀

public interface KeyPrefix {
        
    public int expireSeconds();
    
    public String getPrefix();
    
}

用BasePrefix.java去实现这个接口作为后续扩展所需集成的类

public abstract class BasePrefix implements KeyPrefix {

    private int expireSeconds;

    private String prefix;

    public BasePrefix(String prefix) {//0代表永不过期
            this(0, prefix);
    }

    public BasePrefix(int expireSeconds, String prefix) {
        this.expireSeconds = expireSeconds;
        this.prefix = prefix;
    }

    public int expireSeconds() {//默认0代表永不过期
        return expireSeconds;
    }

    public String getPrefix() {
        String className = getClass().getSimpleName();
        return className + ":" + prefix;
    }

}

扩展的例子此为自己设置了时间的

public class MiaoshaUserKey extends BasePrefix {

    public static final int TOKEN_EXPIRE = 3600 * 24 * 2;

    private MiaoshaUserKey(int expireSeconds, String prefix) {
        super(expireSeconds, prefix);
    }

    public static MiaoshaUserKey token = new MiaoshaUserKey(TOKEN_EXPIRE, "tk");
}

如果不设置时间BasePrefix将时间设置为0 RedisServer调用的时候用set方法而不用setex方法。

public class UserKey extends BasePrefix{

    private UserKey(String prefix) {
        super(prefix);
    }
    public static UserKey getById = new UserKey("id");
    public static UserKey getByName = new UserKey("name");