[大数据]RedisUtils工具类

package com.zeekr.hr.recruitment.share.util;

import org.springframework.data.redis.core.RedisTemplate;

import javax.annotation.Resource;
import java.util.concurrent.TimeUnit;

/**
 * RedisUtils
 *
 * @author
 * @date 2022/3/4 14:43
 */
public class RedisUtils {
    private static RedisTemplate<String, String> redisTemplate;

    /**
     * setRedisTemplate
     *
     * @param redisTemplate redisTemplate
     * @author
     * @date 2022/3/4 14:48
     */
    @Resource
    public void setRedisTemplate(RedisTemplate<String, String> redisTemplate) {
        RedisUtils.redisTemplate = redisTemplate;
    }

    /**
     * 获取key的值
     *
     * @param key key
     * @return java.lang.String
     * @author
     * @date 2022/3/4 14:47
     */
    public static String getValue(String key) {
        return redisTemplate.opsForValue().get(key);
    }

    /**
     * 设置key或者设置key的过期时间
     *
     * @param key      key
     * @param value    value
     * @param expire   过期时间
     * @param timeUnit timeUnit
     * @author
     * @date 2022/3/4 14:44
     */
    public static void setValue(String key, String value, int expire, TimeUnit timeUnit) {
        if (expire <= 0) {
            redisTemplate.opsForValue().set(key, value);
        } else {
            redisTemplate.opsForValue().set(key, value, expire, timeUnit);
        }
    }


    /**
     * 单次锁
     *
     * @param key     key
     * @param value   value
     * @param timeout 过期时间
     * @return 成功 or 失败
     */
    public boolean lockOnce(String key, String value, long timeout) {
        try {
            Boolean aBoolean = redisTemplate.opsForValue().setIfAbsent(key, value, timeout, TimeUnit.SECONDS);
            return null != aBoolean && aBoolean;
        } catch (Exception e) {
            return false;
        }
    }

    /**
     * 删除key
     *
     * @param key key
     * @return 成功 or 失败
     */
    public boolean deleteKey(String key) {
        try {
            return Boolean.TRUE.equals(redisTemplate.delete(key));
        } catch (Exception e) {
            return false;
        }
    }

}