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org.yes.tools.utils.RedisUtil Maven / Gradle / Ivy
package org.yes.tools.utils;
import jakarta.annotation.Resource;
import org.springframework.data.redis.core.ListOperations;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.SetOperations;
import org.springframework.data.redis.core.ZSetOperations;
import org.springframework.stereotype.Component;
import java.util.List;
import java.util.Set;
import java.util.concurrent.TimeUnit;
/***
* redis工具类
*
* @author Co.
* @date: 2022/10/14 18:13
* @return
*/
@Component
public class RedisUtil {
@Resource
private RedisTemplate redisTemplate;
// private static RedisTemplate redisTemplate = SpringUtil.getBean("redisTemplate", RedisTemplate.class);
// =============== common ==========================
/**
* 指定缓存失效时间
*
* @param key 键
* @param time 时间(秒)
* @return boolean
*/
public boolean expire(String key, long time) {
try {
if (time > 0) {
redisTemplate.expire(key, time, TimeUnit.SECONDS);
}
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
/**
* 根据key 获取过期时间
*
* @param key 键 不能为null
* @return 时间(秒) 返回0代表为永久有效 失效时间为负数，说明该主键未设置失效时间（失效时间默认为-1）
*/
public long getExpire(String key) {
return redisTemplate.getExpire(key, TimeUnit.SECONDS);
}
/**
* 判断key是否存在
*
* @param key 键
* @return true 存在 false 不存在
*/
public boolean exists(String key) {
try {
return redisTemplate.hasKey(key);
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
/**
* 删除对应的value
*
* @param key string key
*/
public void delete(String key) {
if (exists(key)) {
redisTemplate.delete(key);
}
}
// =============== string ==========================
/**
* 写入缓存
*
* @param key string key
* @param value string value
*/
public boolean set(String key, Object value) {
try {
redisTemplate.opsForValue().set(key, value);
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
/**
* 写入缓存带有效期(默认时间单位:秒)
*
* @param key string key
* @param value string value
* @param expireTime Long 过期时间
* @return boolean
*/
public boolean set(String key, Object value, Long expireTime) {
try {
if (expireTime > 0) {
redisTemplate.opsForValue().set(key, value, expireTime, TimeUnit.SECONDS);
} else {
set(key, value);
}
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
/**
* 写入缓存带有效期
*
* @param key string key
* @param value string value
* @param expireTime Long 过期时间
* @param timeUnit TimeUnit 时间格式
* @return boolean
*/
public boolean set(String key, Object value, Long expireTime, TimeUnit timeUnit) {
try {
redisTemplate.opsForValue().set(key, value, expireTime, timeUnit);
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
/**
* 读取缓存
*
* @param key string key
* @return T
*/
@SuppressWarnings("unchecked")
public T get(String key) {
return (T) redisTemplate.opsForValue().get(key);
}
/**
* 哈希添加
*
* @param key string key
* @param hashKey Object hashKey
* @param value Object value
*/
public void hmSet(String key, Object hashKey, Object value) {
redisTemplate.opsForHash().put(key, hashKey, value);
}
/**
* 哈希删除
*
* @param key string key
* @param hashKey Object hashKey
*/
public void hmDelete(String key, Object hashKey) {
redisTemplate.opsForHash().delete(key, hashKey);
}
/**
* 哈希获取数据
*
* @param key string key
* @param hashKey Object hashKey
*/
public Object hmGet(String key, Object hashKey) {
return redisTemplate.opsForHash().get(key, hashKey);
}
/**
* 哈希数量
*
* @param key string key
*/
public Long getHashSize(String key) {
return redisTemplate.opsForHash().size(key);
}
/**
* 列表添加左边添加
*
* @param k string key
* @param v Object v
* @author Mr.Zhang
* @since 2020-04-13
*/
public void lPush(String k, Object v) {
ListOperations list = redisTemplate.opsForList();
list.leftPush(k, v);
}
/**
* 从右边拿出来一个
*
* @param k string key
* @param t Long 超时秒数
*/
public Object getRightPop(String k, Long t) {
return redisTemplate.opsForList().rightPop(k, t, TimeUnit.SECONDS);
}
/**
* 列表获取数量
*
* @param k string key
* @return Long
*/
public Long getListSize(String k) {
return redisTemplate.opsForList().size(k);
}
/**
* 列表获取
*
* @param k string key
* @param l long l
* @param l1 long l1
* @return List
*/
public List lRange(String k, long l, long l1) {
ListOperations list = redisTemplate.opsForList();
return list.range(k, l, l1);
}
/**
* 集合添加
*
* @param key string key
* @param value Object value
*/
public void add(String key, Object value) {
SetOperations set = redisTemplate.opsForSet();
set.add(key, value);
}
/**
* 集合获取
*
* @param key string key
* @return Set
*/
public Set setMembers(String key) {
SetOperations set = redisTemplate.opsForSet();
return set.members(key);
}
/**
* 有序集合添加 排行榜使用
*
* @param key string key
* @param value Object value
* @param score double scoure
*/
public void zAdd(String key, Object value, double score) {
ZSetOperations zset = redisTemplate.opsForZSet();
zset.add(key, value, score);
}
/**
* 有序集合获取 排行榜使用
*
* @param key string key
* @param score double scoure
* @return Set
*/
public Set rangeByScore(String key, double score, double score1) {
ZSetOperations zset = redisTemplate.opsForZSet();
return zset.rangeByScore(key, score, score1);
}
/**
* 递增
*
* @param key 键
* @return long
*/
public long incrAndCreate(String key) {
if (!exists(key)) {
set(key, 1);
return 1;
}
return incr(key, 1L);
}
/**
* 递增
*
* @param key 键
* @param delta 要增加几(大于0)
* @return long
*/
public long incr(String key, long delta) {
if (delta < 0) {
throw new RuntimeException("递增因子必须大于0");
}
return redisTemplate.opsForValue().increment(key, delta);
}
/**
* 查询所有的key
*
* @param keys
* @return
*/
public Set getKeys(String keys) {
return redisTemplate.keys(keys);
}
}
