old mode 100644
new mode 100755
| | |
| | | package com.genersoft.iot.vmp.utils.redis;
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| | |
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| | | import java.util.*;
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| | | import java.util.concurrent.TimeUnit;
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| | |
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| | | import com.alibaba.fastjson.JSONObject;
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| | | import com.genersoft.iot.vmp.utils.SpringBeanFactory;
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| | | import org.springframework.beans.factory.annotation.Autowired;
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| | | import org.springframework.data.redis.core.*;
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| | | import org.springframework.stereotype.Component;
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| | | import org.springframework.util.CollectionUtils;
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| | |
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| | | /** |
| | | * @description:Redis工具类
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| | | * @author: swwheihei
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| | | * @date: 2020年5月6日 下午8:27:29 |
| | | */
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| | | @SuppressWarnings(value = {"rawtypes", "unchecked"})
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| | | public class RedisUtil {
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| | |
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| | | private static RedisTemplate redisTemplate;
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| | |
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| | | static {
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| | | redisTemplate = (RedisTemplate)SpringBeanFactory.getBean("redisTemplate");
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| | | }
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| | | |
| | | /**
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| | | * 指定缓存失效时间
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| | | * @param key 键
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| | | * @param time 时间(秒)
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| | | * @return true / false
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| | | */
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| | | public static boolean expire(String key, long time) {
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| | | try {
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| | | if (time > 0) {
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| | | redisTemplate.expire(key, time, TimeUnit.SECONDS);
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| | | }
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| | | return true;
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| | | } catch (Exception e) {
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| | | e.printStackTrace();
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| | | return false;
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| | | }
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| | | }
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| | |
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| | | /**
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| | | * 根据 key 获取过期时间
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| | | * @param key 键
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| | | * @return
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| | | */
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| | | public static long getExpire(String key) {
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| | | return redisTemplate.getExpire(key, TimeUnit.SECONDS);
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| | | }
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| | |
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| | | /**
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| | | * 判断 key 是否存在
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| | | * @param key 键
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| | | * @return true / false
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| | | */
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| | | public static boolean hasKey(String key) {
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| | | try {
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| | | return redisTemplate.hasKey(key);
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| | | } catch (Exception e) {
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| | | e.printStackTrace();
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| | | return false;
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| | | }
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| | | }
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| | |
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| | | /**
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| | | * 删除缓存
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| | | * @SuppressWarnings("unchecked") 忽略类型转换警告
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| | | * @param key 键(一个或者多个)
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| | | */
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| | | public static boolean del(String... key) {
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| | | try {
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| | | if (key != null && key.length > 0) {
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| | | if (key.length == 1) {
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| | | redisTemplate.delete(key[0]);
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| | | } else {
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| | | // 传入一个 Collection<String> 集合
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| | | redisTemplate.delete(CollectionUtils.arrayToList(key));
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| | | }
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| | | }
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| | | return true;
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| | | } catch (Exception e) {
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| | | e.printStackTrace();
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| | | return false;
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| | | }
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| | | }
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| | |
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| | | // ============================== String ==============================
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| | |
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| | | /**
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| | | * 普通缓存获取
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| | | * @param key 键
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| | | * @return 值
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| | | */
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| | | public static Object get(String key) {
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| | | return key == null ? null : redisTemplate.opsForValue().get(key);
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| | | }
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| | |
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| | | /**
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| | | * 普通缓存放入
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| | | * @param key 键
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| | | * @param value 值
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| | | * @return true / false
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| | | */
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| | | public static boolean set(String key, Object value) {
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| | | try {
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| | | redisTemplate.opsForValue().set(key, value);
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| | | return true;
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| | | } catch (Exception e) {
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| | | e.printStackTrace();
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| | | return false;
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| | | }
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| | | }
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| | |
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| | | /**
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| | | * 普通缓存放入并设置时间
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| | | * @param key 键
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| | | * @param value 值
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| | | * @param time 时间(秒),如果 time < 0 则设置无限时间
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| | | * @return true / false
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| | | */
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| | | public static boolean set(String key, Object value, long time) {
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| | | try {
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| | | if (time > 0) {
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| | | redisTemplate.opsForValue().set(key, value, time, TimeUnit.SECONDS);
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| | | } else {
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| | | set(key, value);
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| | | }
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| | | return true;
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| | | } catch (Exception e) {
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| | | e.printStackTrace();
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| | | return false;
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| | | }
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| | | }
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| | |
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| | | /**
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| | | * 递增
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| | | * @param key 键
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| | | * @param delta 递增大小
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| | | * @return
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| | | */
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| | | public static long incr(String key, long delta) {
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| | | if (delta < 0) {
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| | | throw new RuntimeException("递增因子必须大于 0");
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| | | }
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| | | return redisTemplate.opsForValue().increment(key, delta);
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| | | }
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| | |
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| | | /**
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| | | * 递减
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| | | * @param key 键
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| | | * @param delta 递减大小
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| | | * @return
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| | | */
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| | | public static long decr(String key, long delta) {
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| | | if (delta < 0) {
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| | | throw new RuntimeException("递减因子必须大于 0");
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| | | }
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| | | return redisTemplate.opsForValue().increment(key, delta);
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| | | }
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| | |
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| | | // ============================== Map ==============================
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| | |
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| | | /**
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| | | * HashGet
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| | | * @param key 键(no null)
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| | | * @param item 项(no null)
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| | | * @return 值
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| | | */
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| | | public static Object hget(String key, String item) {
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| | | return redisTemplate.opsForHash().get(key, item);
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| | | }
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| | |
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| | | /**
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| | | * 获取 key 对应的 map
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| | | * @param key 键(no null)
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| | | * @return 对应的多个键值
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| | | */
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| | | public static Map<Object, Object> hmget(String key) {
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| | | return redisTemplate.opsForHash().entries(key);
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| | | }
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| | |
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| | | /**
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| | | * HashSet
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| | | * @param key 键
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| | | * @param map 值
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| | | * @return true / false
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| | | */
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| | | public static boolean hmset(String key, Map<Object, Object> map) {
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| | | try {
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| | | redisTemplate.opsForHash().putAll(key, map);
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| | | return true;
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| | | } catch (Exception e) {
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| | | e.printStackTrace();
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| | | return false;
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| | | }
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| | | }
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| | |
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| | | /**
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| | | * HashSet 并设置时间
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| | | * @param key 键
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| | | * @param map 值
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| | | * @param time 时间
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| | | * @return true / false
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| | | */
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| | | public static boolean hmset(String key, Map<Object, Object> map, long time) {
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| | | try {
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| | | redisTemplate.opsForHash().putAll(key, map);
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| | | if (time > 0) {
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| | | expire(key, time);
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| | | }
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| | | return true;
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| | | } catch (Exception e) {
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| | | e.printStackTrace();
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| | | return false;
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| | | }
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| | | }
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| | |
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| | | /**
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| | | * 向一张 Hash表 中放入数据,如不存在则创建
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| | | * @param key 键
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| | | * @param item 项
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| | | * @param value 值
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| | | * @return true / false
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| | | */
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| | | public static boolean hset(String key, String item, Object value) {
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| | | try {
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| | | redisTemplate.opsForHash().put(key, item, value);
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| | | return true;
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| | | } catch (Exception e) {
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| | | e.printStackTrace();
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| | | return false;
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| | | }
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| | | }
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| | |
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| | | /**
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| | | * 向一张 Hash表 中放入数据,并设置时间,如不存在则创建
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| | | * @param key 键
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| | | * @param item 项
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| | | * @param value 值
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| | | * @param time 时间(如果原来的 Hash表 设置了时间,这里会覆盖)
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| | | * @return true / false
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| | | */
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| | | public static boolean hset(String key, String item, Object value, long time) {
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| | | try {
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| | | redisTemplate.opsForHash().put(key, item, value);
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| | | if (time > 0) {
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| | | expire(key, time);
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| | | }
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| | | return true;
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| | | } catch (Exception e) {
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| | | e.printStackTrace();
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| | | return false;
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| | | }
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| | | }
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| | |
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| | | /**
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| | | * 删除 Hash表 中的值
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| | | * @param key 键
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| | | * @param item 项(可以多个,no null)
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| | | */
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| | | public static void hdel(String key, Object... item) {
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| | | redisTemplate.opsForHash().delete(key, item);
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| | | }
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| | |
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| | | /**
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| | | * 判断 Hash表 中是否有该键的值
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| | | * @param key 键(no null)
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| | | * @param item 值(no null)
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| | | * @return true / false
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| | | */
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| | | public static boolean hHasKey(String key, String item) {
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| | | return redisTemplate.opsForHash().hasKey(key, item);
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| | | }
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| | |
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| | | /**
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| | | * Hash递增,如果不存在则创建一个,并把新增的值返回
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| | | * @param key 键
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| | | * @param item 项
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| | | * @param by 递增大小 > 0
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| | | * @return
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| | | */
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| | | public static Double hincr(String key, String item, Double by) {
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| | | return redisTemplate.opsForHash().increment(key, item, by);
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| | | }
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| | |
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| | | /**
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| | | * Hash递减
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| | | * @param key 键
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| | | * @param item 项
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| | | * @param by 递减大小
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| | | * @return
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| | | */
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| | | public static Double hdecr(String key, String item, Double by) {
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| | | return redisTemplate.opsForHash().increment(key, item, -by);
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| | | }
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| | |
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| | | // ============================== Set ==============================
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| | |
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| | | /**
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| | | * 根据 key 获取 set 中的所有值
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| | | * @param key 键
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| | | * @return 值
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| | | */
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| | | public static Set<Object> sGet(String key) {
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| | | try {
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| | | return redisTemplate.opsForSet().members(key);
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| | | } catch (Exception e) {
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| | | e.printStackTrace();
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| | | return null;
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| | | }
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| | | }
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| | |
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| | | /**
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| | | * 从键为 key 的 set 中,根据 value 查询是否存在
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| | | * @param key 键
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| | | * @param value 值
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| | | * @return true / false
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| | | */
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| | | public static boolean sHasKey(String key, Object value) {
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| | | try {
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| | | return redisTemplate.opsForSet().isMember(key, value);
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| | | } catch (Exception e) {
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| | | e.printStackTrace();
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| | | return false;
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| | | }
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| | | }
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| | |
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| | | /**
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| | | * 将数据放入 set缓存
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| | | * @param key 键值
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| | | * @param values 值(可以多个)
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| | | * @return 成功个数
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| | | */
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| | | public static long sSet(String key, Object... values) {
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| | | try {
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| | | return redisTemplate.opsForSet().add(key, values);
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| | | } catch (Exception e) {
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| | | e.printStackTrace();
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| | | return 0;
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| | | }
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| | | }
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| | |
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| | | /**
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| | | * 将数据放入 set缓存,并设置时间
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| | | * @param key 键
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| | | * @param time 时间
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| | | * @param values 值(可以多个)
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| | | * @return 成功放入个数
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| | | */
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| | | public static long sSet(String key, long time, Object... values) {
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| | | try {
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| | | long count = redisTemplate.opsForSet().add(key, values);
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| | | if (time > 0) {
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| | | expire(key, time);
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| | | }
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| | | return count;
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| | | } catch (Exception e) {
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| | | e.printStackTrace();
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| | | return 0;
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| | | }
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| | | }
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| | |
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| | | /**
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| | | * 获取 set缓存的长度
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| | | * @param key 键
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| | | * @return 长度
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| | | */
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| | | public static long sGetSetSize(String key) {
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| | | try {
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| | | return redisTemplate.opsForSet().size(key);
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| | | } catch (Exception e) {
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| | | e.printStackTrace();
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| | | return 0;
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| | | }
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| | | }
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| | |
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| | | /**
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| | | * 移除 set缓存中,值为 value 的
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| | | * @param key 键
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| | | * @param values 值
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| | | * @return 成功移除个数
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| | | */
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| | | public static long setRemove(String key, Object... values) {
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| | | try {
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| | | return redisTemplate.opsForSet().remove(key, values);
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| | | } catch (Exception e) {
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| | | e.printStackTrace();
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| | | return 0;
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| | | }
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| | | }
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| | | // ============================== ZSet ==============================
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| | |
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| | | /**
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| | | * 添加一个元素, zset与set最大的区别就是每个元素都有一个score,因此有个排序的辅助功能; zadd
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| | | *
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| | | * @param key
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| | | * @param value
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| | | * @param score
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| | | */
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| | | public static void zAdd(Object key, Object value, double score) {
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| | | redisTemplate.opsForZSet().add(key, value, score);
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| | | }
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| | |
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| | | /**
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| | | * 删除元素 zrem
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| | | *
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| | | * @param key
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| | | * @param value
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| | | */
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| | | public static void zRemove(Object key, Object value) {
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| | | redisTemplate.opsForZSet().remove(key, value);
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| | | }
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| | |
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| | | /**
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| | | * score的增加or减少 zincrby
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| | | *
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| | | * @param key
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| | | * @param value
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| | | * @param delta -1 表示减 1 表示加1
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| | | */
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| | | public static Double zIncrScore(Object key, Object value, double delta) {
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| | | return redisTemplate.opsForZSet().incrementScore(key, value, delta);
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| | | }
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| | |
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| | | /**
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| | | * 查询value对应的score zscore
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| | | *
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| | | * @param key
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| | | * @param value
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| | | * @return
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| | | */
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| | | public static Double zScore(Object key, Object value) {
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| | | return redisTemplate.opsForZSet().score(key, value);
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| | | }
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| | |
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| | | /**
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| | | * 判断value在zset中的排名 zrank
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| | | *
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| | | * @param key
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| | | * @param value
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| | | * @return
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| | | */
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| | | public static Long zRank(Object key, Object value) {
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| | | return redisTemplate.opsForZSet().rank(key, value);
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| | | }
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| | |
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| | | /**
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| | | * 返回集合的长度
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| | | *
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| | | * @param key
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| | | * @return
|
| | | */
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| | | public static Long zSize(Object key) {
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| | | return redisTemplate.opsForZSet().zCard(key);
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| | | }
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| | |
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| | | /**
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| | | * 查询集合中指定顺序的值, 0 -1 表示获取全部的集合内容 zrange
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| | | *
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| | | * 返回有序的集合,score小的在前面
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| | | *
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| | | * @param key
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| | | * @param start
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| | | * @param end
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| | | * @return
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| | | */
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| | | public static Set<Object> ZRange(Object key, int start, int end) {
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| | | return redisTemplate.opsForZSet().range(key, start, end);
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| | | }
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| | | /**
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| | | * 查询集合中指定顺序的值和score,0, -1 表示获取全部的集合内容
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| | | *
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| | | * @param key
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| | | * @param start
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| | | * @param end
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| | | * @return
|
| | | */
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| | | public static Set<ZSetOperations.TypedTuple<String>> zRangeWithScore(Object key, int start, int end) {
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| | | return redisTemplate.opsForZSet().rangeWithScores(key, start, end);
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| | | }
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| | | /**
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| | | * 查询集合中指定顺序的值 zrevrange
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| | | *
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| | | * 返回有序的集合中,score大的在前面
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| | | *
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| | | * @param key
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| | | * @param start
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| | | * @param end
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| | | * @return
|
| | | */
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| | | public static Set<String> zRevRange(Object key, int start, int end) {
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| | | return redisTemplate.opsForZSet().reverseRange(key, start, end);
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| | | }
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| | | /**
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| | | * 根据score的值,来获取满足条件的集合 zrangebyscore
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| | | *
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| | | * @param key
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| | | * @param min
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| | | * @param max
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| | | * @return
|
| | | */
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| | | public static Set<String> zSortRange(Object key, int min, int max) {
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| | | return redisTemplate.opsForZSet().rangeByScore(key, min, max);
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| | | }
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| | |
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| | |
|
| | | // ============================== List ==============================
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| | |
|
| | | /**
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| | | * 获取 list缓存的内容
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| | | * @param key 键
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| | | * @param start 开始
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| | | * @param end 结束(0 到 -1 代表所有值)
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| | | * @return
|
| | | */
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| | | public static List<Object> lGet(String key, long start, long end) {
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| | | try {
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| | | return redisTemplate.opsForList().range(key, start, end);
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| | | } catch (Exception e) {
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| | | e.printStackTrace();
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| | | return null;
|
| | | }
|
| | | }
|
| | |
|
| | | /**
|
| | | * 获取 list缓存的长度
|
| | | * @param key 键
|
| | | * @return 长度
|
| | | */
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| | | public static long lGetListSize(String key) {
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| | | try {
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| | | return redisTemplate.opsForList().size(key);
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| | | } catch (Exception e) {
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| | | e.printStackTrace();
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| | | return 0;
|
| | | }
|
| | | }
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| | |
|
| | | /**
|
| | | * 根据索引 index 获取键为 key 的 list 中的元素
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| | | * @param key 键
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| | | * @param index 索引
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| | | * 当 index >= 0 时 {0:表头, 1:第二个元素}
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| | | * 当 index < 0 时 {-1:表尾, -2:倒数第二个元素}
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| | | * @return 值
|
| | | */
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| | | public static Object lGetIndex(String key, long index) {
|
| | | try {
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| | | return redisTemplate.opsForList().index(key, index);
|
| | | } catch (Exception e) {
|
| | | e.printStackTrace();
|
| | | return null;
|
| | | }
|
| | | }
|
| | |
|
| | | /**
|
| | | * 将值 value 插入键为 key 的 list 中,如果 list 不存在则创建空 list
|
| | | * @param key 键
|
| | | * @param value 值
|
| | | * @return true / false
|
| | | */
|
| | | public static boolean lSet(String key, Object value) {
|
| | | try {
|
| | | redisTemplate.opsForList().rightPush(key, value);
|
| | | return true;
|
| | | } catch (Exception e) {
|
| | | e.printStackTrace();
|
| | | return false;
|
| | | }
|
| | | }
|
| | |
|
| | | /**
|
| | | * 将值 value 插入键为 key 的 list 中,并设置时间
|
| | | * @param key 键
|
| | | * @param value 值
|
| | | * @param time 时间
|
| | | * @return true / false
|
| | | */
|
| | | public static boolean lSet(String key, Object value, long time) {
|
| | | try {
|
| | | redisTemplate.opsForList().rightPush(key, value);
|
| | | if (time > 0) {
|
| | | expire(key, time);
|
| | | }
|
| | | return true;
|
| | | } catch (Exception e) {
|
| | | e.printStackTrace();
|
| | | return false;
|
| | | }
|
| | | }
|
| | |
|
| | | /**
|
| | | * 将 values 插入键为 key 的 list 中
|
| | | * @param key 键
|
| | | * @param values 值
|
| | | * @return true / false
|
| | | */
|
| | | public static boolean lSetList(String key, List<Object> values) {
|
| | | try {
|
| | | redisTemplate.opsForList().rightPushAll(key, values);
|
| | | return true;
|
| | | } catch (Exception e) {
|
| | | e.printStackTrace();
|
| | | return false;
|
| | | }
|
| | | }
|
| | |
|
| | | /**
|
| | | * 将 values 插入键为 key 的 list 中,并设置时间
|
| | | * @param key 键
|
| | | * @param values 值
|
| | | * @param time 时间
|
| | | * @return true / false
|
| | | */
|
| | | public static boolean lSetList(String key, List<Object> values, long time) {
|
| | | try {
|
| | | redisTemplate.opsForList().rightPushAll(key, values);
|
| | | if (time > 0) {
|
| | | expire(key, time);
|
| | | }
|
| | | return true;
|
| | | } catch (Exception e) {
|
| | | e.printStackTrace();
|
| | | return false;
|
| | | }
|
| | | }
|
| | |
|
| | | /**
|
| | | * 根据索引 index 修改键为 key 的值
|
| | | * @param key 键
|
| | | * @param index 索引
|
| | | * @param value 值
|
| | | * @return true / false
|
| | | */
|
| | | public static boolean lUpdateIndex(String key, long index, Object value) {
|
| | | try {
|
| | | redisTemplate.opsForList().set(key, index, value);
|
| | | return true;
|
| | | } catch (Exception e) {
|
| | | e.printStackTrace();
|
| | | return false;
|
| | | }
|
| | | }
|
| | |
|
| | | /**
|
| | | * 在键为 key 的 list 中删除值为 value 的元素
|
| | | * @param key 键
|
| | | * @param count 如果 count == 0 则删除 list 中所有值为 value 的元素
|
| | | * 如果 count > 0 则删除 list 中最左边那个值为 value 的元素
|
| | | * 如果 count < 0 则删除 list 中最右边那个值为 value 的元素
|
| | | * @param value
|
| | | * @return
|
| | | */
|
| | | public static long lRemove(String key, long count, Object value) {
|
| | | try {
|
| | | return redisTemplate.opsForList().remove(key, count, value);
|
| | | } catch (Exception e) {
|
| | | e.printStackTrace();
|
| | | return 0;
|
| | | }
|
| | | }
|
| | |
|
| | | /**
|
| | | * 在键为 key 的 list中移除第一个元素
|
| | | * @param key 键
|
| | | * @return
|
| | | */
|
| | | public static Object lLeftPop(String key) {
|
| | | return redisTemplate.opsForList().leftPop(key);
|
| | | }
|
| | |
|
| | | /**
|
| | | * 在键为 key 的 list中移除、最后一个元素
|
| | | * @param key 键
|
| | | * @return
|
| | | */
|
| | | public static Object lrightPop(String key) {
|
| | | return redisTemplate.opsForList().rightPop(key);
|
| | | }
|
| | |
|
| | | /**
|
| | | * 模糊查询
|
| | | * @param key 键
|
| | | * @return true / false
|
| | | */
|
| | | public static List<Object> keys(String key) {
|
| | | try {
|
| | | Set<String> set = redisTemplate.keys(key);
|
| | | return new ArrayList<>(set);
|
| | | } catch (Exception e) {
|
| | | e.printStackTrace();
|
| | | return null;
|
| | | }
|
| | | }
|
| | |
|
| | |
|
| | | /**
|
| | | * 模糊查询
|
| | | * @param query 查询参数
|
| | | * @return
|
| | | */
|
| | | // public static List<Object> scan(String query) {
|
| | | // List<Object> result = new ArrayList<>();
|
| | | // try {
|
| | | // Cursor<Map.Entry<Object,Object>> cursor = redisTemplate.opsForHash().scan("field",
|
| | | // ScanOptions.scanOptions().match(query).count(1000).build());
|
| | | // while (cursor.hasNext()) {
|
| | | // Map.Entry<Object,Object> entry = cursor.next();
|
| | | // result.add(entry.getKey());
|
| | | // Object key = entry.getKey();
|
| | | // Object valueSet = entry.getValue();
|
| | | // }
|
| | | // //关闭cursor
|
| | | // cursor.close();
|
| | | // } catch (Exception e) {
|
| | | // e.printStackTrace();
|
| | | // }
|
| | | // return result;
|
| | | // }
|
| | |
|
| | | /**
|
| | | * 模糊查询
|
| | | * @param query 查询参数
|
| | | * @return
|
| | | */
|
| | | public static List<Object> scan(String query) {
|
| | | Set<String> resultKeys = (Set<String>) redisTemplate.execute((RedisCallback<Set<String>>) connection -> {
|
| | | ScanOptions scanOptions = ScanOptions.scanOptions().match("*" + query + "*").count(1000).build();
|
| | | Cursor<byte[]> scan = connection.scan(scanOptions);
|
| | | Set<String> keys = new HashSet<>();
|
| | | while (scan.hasNext()) {
|
| | | byte[] next = scan.next();
|
| | | keys.add(new String(next));
|
| | | }
|
| | | return keys;
|
| | | });
|
| | |
|
| | | return new ArrayList<>(resultKeys);
|
| | | }
|
| | |
|
| | | // ============================== 消息发送与订阅 ==============================
|
| | | public static void convertAndSend(String channel, JSONObject msg) {
|
| | | // redisTemplate.convertAndSend(channel, msg);
|
| | | redisTemplate.convertAndSend(channel, msg);
|
| | |
|
| | | }
|
| | |
|
| | | }
|
| | | package com.genersoft.iot.vmp.utils.redis; |
| | | |
| | | import com.google.common.collect.Lists; |
| | | import org.springframework.data.redis.core.Cursor; |
| | | import org.springframework.data.redis.core.RedisCallback; |
| | | import org.springframework.data.redis.core.RedisTemplate; |
| | | import org.springframework.data.redis.core.ScanOptions; |
| | | |
| | | import java.util.ArrayList; |
| | | import java.util.HashSet; |
| | | import java.util.List; |
| | | import java.util.Set; |
| | | |
| | | /** |
| | | * Redis工具类 |
| | | * |
| | | * @author swwheihei |
| | | * @date 2020年5月6日 下午8:27:29 |
| | | */ |
| | | @SuppressWarnings(value = {"rawtypes", "unchecked"}) |
| | | public class RedisUtil { |
| | | |
| | | /** |
| | | * 模糊查询 |
| | | * |
| | | * @param query 查询参数 |
| | | * @return |
| | | */ |
| | | public static List<Object> scan(RedisTemplate redisTemplate, String query) { |
| | | |
| | | Set<String> resultKeys = (Set<String>) redisTemplate.execute((RedisCallback<Set<String>>) connection -> { |
| | | ScanOptions scanOptions = ScanOptions.scanOptions().match("*" + query + "*").count(1000).build(); |
| | | Cursor<byte[]> scan = connection.scan(scanOptions); |
| | | Set<String> keys = new HashSet<>(); |
| | | while (scan.hasNext()) { |
| | | byte[] next = scan.next(); |
| | | keys.add(new String(next)); |
| | | } |
| | | return keys; |
| | | }); |
| | | |
| | | return Lists.newArrayList(resultKeys); |
| | | } |
| | | } |
| | | |
| | | |
| | | |