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+/*
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+ * Copyright 2019-2020 Zheng Jie
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+ *
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+ * Licensed under the Apache License, Version 2.0 (the "License");
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+ * you may not use this file except in compliance with the License.
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+ * You may obtain a copy of the License at
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+ *
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+ * http://www.apache.org/licenses/LICENSE-2.0
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+ *
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+ * Unless required by applicable law or agreed to in writing, software
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+ * distributed under the License is distributed on an "AS IS" BASIS,
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+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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+ * See the License for the specific language governing permissions and
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+ * limitations under the License.
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+ */
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+package me.zhengjie.utils;
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+
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+import com.google.common.collect.Lists;
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+import com.google.common.collect.Sets;
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+import org.slf4j.Logger;
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+import org.slf4j.LoggerFactory;
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+import org.springframework.beans.factory.annotation.Value;
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+import org.springframework.data.redis.connection.RedisConnection;
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+import org.springframework.data.redis.connection.RedisConnectionFactory;
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+import org.springframework.data.redis.core.*;
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+import org.springframework.stereotype.Component;
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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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+/**
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+ * @author /
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+ */
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+@Component
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+@SuppressWarnings({"unchecked", "all"})
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+public class RedisUtils {
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+ private static final Logger log = LoggerFactory.getLogger(RedisUtils.class);
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+ private RedisTemplate<Object, Object> redisTemplate;
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+ @Value("${jwt.online-key}")
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+ private String onlineKey;
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+
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+ public RedisUtils(RedisTemplate<Object, Object> redisTemplate) {
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+ this.redisTemplate = redisTemplate;
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+ }
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+
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+ /**
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+ * 指定缓存失效时间
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+ *
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+ * @param key 键
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+ * @param time 时间(秒)
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+ */
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+ public 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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+ } catch (Exception e) {
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+ log.error(e.getMessage(), e);
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+ return false;
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+ }
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+ return true;
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+ }
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+
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+ /**
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+ * 指定缓存失效时间
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+ *
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+ * @param key 键
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+ * @param time 时间(秒)
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+ * @param timeUnit 单位
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+ */
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+ public boolean expire(String key, long time, TimeUnit timeUnit) {
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+ try {
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+ if (time > 0) {
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+ redisTemplate.expire(key, time, timeUnit);
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+ }
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+ } catch (Exception e) {
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+ log.error(e.getMessage(), e);
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+ return false;
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+ }
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+ return true;
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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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+ *
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+ * @param key 键 不能为null
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+ * @return 时间(秒) 返回0代表为永久有效
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+ */
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+ public long getExpire(Object 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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+ * 查找匹配key
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+ *
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+ * @param pattern key
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+ * @return /
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+ */
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+ public List<String> scan(String pattern) {
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+ ScanOptions options = ScanOptions.scanOptions().match(pattern).build();
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+ RedisConnectionFactory factory = redisTemplate.getConnectionFactory();
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+ RedisConnection rc = Objects.requireNonNull(factory).getConnection();
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+ Cursor<byte[]> cursor = rc.scan(options);
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+ List<String> result = new ArrayList<>();
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+ while (cursor.hasNext()) {
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+ result.add(new String(cursor.next()));
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+ }
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+ try {
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+ RedisConnectionUtils.releaseConnection(rc, factory);
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+ } catch (Exception e) {
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+ log.error(e.getMessage(), e);
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+ }
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+ return result;
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+ }
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+
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+ /**
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+ * 分页查询 key
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+ *
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+ * @param patternKey key
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+ * @param page 页码
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+ * @param size 每页数目
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+ * @return /
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+ */
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+ public List<String> findKeysForPage(String patternKey, int page, int size) {
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+ ScanOptions options = ScanOptions.scanOptions().match(patternKey).build();
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+ RedisConnectionFactory factory = redisTemplate.getConnectionFactory();
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+ RedisConnection rc = Objects.requireNonNull(factory).getConnection();
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+ Cursor<byte[]> cursor = rc.scan(options);
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+ List<String> result = new ArrayList<>(size);
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+ int tmpIndex = 0;
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+ int fromIndex = page * size;
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+ int toIndex = page * size + size;
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+ while (cursor.hasNext()) {
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+ if (tmpIndex >= fromIndex && tmpIndex < toIndex) {
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+ result.add(new String(cursor.next()));
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+ tmpIndex++;
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+ continue;
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+ }
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+ // 获取到满足条件的数据后,就可以退出了
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+ if (tmpIndex >= toIndex) {
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+ break;
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+ }
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+ tmpIndex++;
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+ cursor.next();
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+ }
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+ try {
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+ RedisConnectionUtils.releaseConnection(rc, factory);
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+ } catch (Exception e) {
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+ log.error(e.getMessage(), e);
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+ }
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+ return result;
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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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+ *
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+ * @param key 键
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+ * @return true 存在 false不存在
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+ */
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+ public 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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+ log.error(e.getMessage(), e);
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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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+ *
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+ * @param key 可以传一个值 或多个
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+ */
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+ public void del(String... keys) {
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+ if (keys != null && keys.length > 0) {
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+ if (keys.length == 1) {
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+ boolean result = redisTemplate.delete(keys[0]);
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+ log.debug("--------------------------------------------");
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+ log.debug(new StringBuilder("删除缓存:").append(keys[0]).append(",结果:").append(result).toString());
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+ log.debug("--------------------------------------------");
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+ } else {
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+ Set<Object> keySet = new HashSet<>();
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+ for (String key : keys) {
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+ keySet.addAll(redisTemplate.keys(key));
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+ }
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+ long count = redisTemplate.delete(keySet);
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+ log.debug("--------------------------------------------");
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+ log.debug("成功删除缓存:" + keySet.toString());
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+ log.debug("缓存删除数量:" + count + "个");
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+ log.debug("--------------------------------------------");
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+ }
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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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+ *
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+ * @param key 键
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+ * @return 值
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+ */
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+ public 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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+ * 批量获取
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+ *
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+ * @param keys
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+ * @return
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+ */
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+ public List<Object> multiGet(List<String> keys) {
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+ List list = redisTemplate.opsForValue().multiGet(Sets.newHashSet(keys));
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+ List resultList = Lists.newArrayList();
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+ Optional.ofNullable(list).ifPresent(e-> list.forEach(ele-> Optional.ofNullable(ele).ifPresent(resultList::add)));
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+ return resultList;
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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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+ *
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+ * @param key 键
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+ * @param value 值
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+ * @return true成功 false失败
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+ */
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+ public 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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+ log.error(e.getMessage(), e);
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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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+ *
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+ * @param key 键
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+ * @param value 值
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+ * @param time 时间(秒) time要大于0 如果time小于等于0 将设置无限期
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+ * @return true成功 false 失败
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+ */
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+ public 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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+ log.error(e.getMessage(), e);
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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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+ *
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+ * @param key 键
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+ * @param value 值
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+ * @param time 时间
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+ * @param timeUnit 类型
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+ * @return true成功 false 失败
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+ */
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+ public boolean set(String key, Object value, long time, TimeUnit timeUnit) {
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+ try {
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+ if (time > 0) {
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+ redisTemplate.opsForValue().set(key, value, time, timeUnit);
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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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+ log.error(e.getMessage(), e);
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+ return false;
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+ }
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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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+ *
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+ * @param key 键 不能为null
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+ * @param item 项 不能为null
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+ * @return 值
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+ */
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+ public 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hashKey对应的所有键值
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+ *
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+ * @param key 键
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+ * @return 对应的多个键值
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+ */
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+ public 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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+ /**
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+ * HashSet
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+ *
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+ * @param key 键
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+ * @param map 对应多个键值
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+ * @return true 成功 false 失败
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+ */
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+ public boolean hmset(String key, Map<String, 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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+ log.error(e.getMessage(), e);
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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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+ *
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+ * @param key 键
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+ * @param map 对应多个键值
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+ * @param time 时间(秒)
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+ * @return true成功 false失败
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+ */
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+ public boolean hmset(String key, Map<String, 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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+ log.error(e.getMessage(), e);
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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,如果不存在将创建
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+ *
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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 成功 false失败
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+ */
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+ public 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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+ log.error(e.getMessage(), e);
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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,如果不存在将创建
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+ *
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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(秒) 注意:如果已存在的hash表有时间,这里将会替换原有的时间
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+ * @return true 成功 false失败
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+ */
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+ public 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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+ log.error(e.getMessage(), e);
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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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+ *
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+ * @param key 键 不能为null
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+ * @param item 项 可以使多个 不能为null
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+ */
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+ public 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表中是否有该项的值
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+ *
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+ * @param key 键 不能为null
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+ * @param item 项 不能为null
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+ * @return true 存在 false不存在
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+ */
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+ public 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,就会创建一个 并把新增后的值返回
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+ *
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+ * @param key 键
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+ * @param item 项
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+ * @param by 要增加几(大于0)
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+ * @return
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+ */
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+ public 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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+ *
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+ * @param key 键
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+ * @param item 项
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+ * @param by 要减少记(小于0)
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+ * @return
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+ */
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+ public 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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+ *
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|
+ * @param key 键
|
|
|
+ * @return
|
|
|
+ */
|
|
|
+ public Set<Object> sGet(String key) {
|
|
|
+ try {
|
|
|
+ return redisTemplate.opsForSet().members(key);
|
|
|
+ } catch (Exception e) {
|
|
|
+ log.error(e.getMessage(), e);
|
|
|
+ return null;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 根据value从一个set中查询,是否存在
|
|
|
+ *
|
|
|
+ * @param key 键
|
|
|
+ * @param value 值
|
|
|
+ * @return true 存在 false不存在
|
|
|
+ */
|
|
|
+ public boolean sHasKey(String key, Object value) {
|
|
|
+ try {
|
|
|
+ return redisTemplate.opsForSet().isMember(key, value);
|
|
|
+ } catch (Exception e) {
|
|
|
+ log.error(e.getMessage(), e);
|
|
|
+ return false;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 将数据放入set缓存
|
|
|
+ *
|
|
|
+ * @param key 键
|
|
|
+ * @param values 值 可以是多个
|
|
|
+ * @return 成功个数
|
|
|
+ */
|
|
|
+ public long sSet(String key, Object... values) {
|
|
|
+ try {
|
|
|
+ return redisTemplate.opsForSet().add(key, values);
|
|
|
+ } catch (Exception e) {
|
|
|
+ log.error(e.getMessage(), e);
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 将set数据放入缓存
|
|
|
+ *
|
|
|
+ * @param key 键
|
|
|
+ * @param time 时间(秒)
|
|
|
+ * @param values 值 可以是多个
|
|
|
+ * @return 成功个数
|
|
|
+ */
|
|
|
+ public long sSetAndTime(String key, long time, Object... values) {
|
|
|
+ try {
|
|
|
+ Long count = redisTemplate.opsForSet().add(key, values);
|
|
|
+ if (time > 0) {
|
|
|
+ expire(key, time);
|
|
|
+ }
|
|
|
+ return count;
|
|
|
+ } catch (Exception e) {
|
|
|
+ log.error(e.getMessage(), e);
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 获取set缓存的长度
|
|
|
+ *
|
|
|
+ * @param key 键
|
|
|
+ * @return
|
|
|
+ */
|
|
|
+ public long sGetSetSize(String key) {
|
|
|
+ try {
|
|
|
+ return redisTemplate.opsForSet().size(key);
|
|
|
+ } catch (Exception e) {
|
|
|
+ log.error(e.getMessage(), e);
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 移除值为value的
|
|
|
+ *
|
|
|
+ * @param key 键
|
|
|
+ * @param values 值 可以是多个
|
|
|
+ * @return 移除的个数
|
|
|
+ */
|
|
|
+ public long setRemove(String key, Object... values) {
|
|
|
+ try {
|
|
|
+ Long count = redisTemplate.opsForSet().remove(key, values);
|
|
|
+ return count;
|
|
|
+ } catch (Exception e) {
|
|
|
+ log.error(e.getMessage(), e);
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ // ===============================list=================================
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 获取list缓存的内容
|
|
|
+ *
|
|
|
+ * @param key 键
|
|
|
+ * @param start 开始
|
|
|
+ * @param end 结束 0 到 -1代表所有值
|
|
|
+ * @return
|
|
|
+ */
|
|
|
+ public List<Object> lGet(String key, long start, long end) {
|
|
|
+ try {
|
|
|
+ return redisTemplate.opsForList().range(key, start, end);
|
|
|
+ } catch (Exception e) {
|
|
|
+ log.error(e.getMessage(), e);
|
|
|
+ return null;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 获取list缓存的长度
|
|
|
+ *
|
|
|
+ * @param key 键
|
|
|
+ * @return
|
|
|
+ */
|
|
|
+ public long lGetListSize(String key) {
|
|
|
+ try {
|
|
|
+ return redisTemplate.opsForList().size(key);
|
|
|
+ } catch (Exception e) {
|
|
|
+ log.error(e.getMessage(), e);
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 通过索引 获取list中的值
|
|
|
+ *
|
|
|
+ * @param key 键
|
|
|
+ * @param index 索引 index>=0时, 0 表头,1 第二个元素,依次类推;index<0时,-1,表尾,-2倒数第二个元素,依次类推
|
|
|
+ * @return
|
|
|
+ */
|
|
|
+ public Object lGetIndex(String key, long index) {
|
|
|
+ try {
|
|
|
+ return redisTemplate.opsForList().index(key, index);
|
|
|
+ } catch (Exception e) {
|
|
|
+ log.error(e.getMessage(), e);
|
|
|
+ return null;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 将list放入缓存
|
|
|
+ *
|
|
|
+ * @param key 键
|
|
|
+ * @param value 值
|
|
|
+ * @return
|
|
|
+ */
|
|
|
+ public boolean lSet(String key, Object value) {
|
|
|
+ try {
|
|
|
+ redisTemplate.opsForList().rightPush(key, value);
|
|
|
+ return true;
|
|
|
+ } catch (Exception e) {
|
|
|
+ log.error(e.getMessage(), e);
|
|
|
+ return false;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 将list放入缓存
|
|
|
+ *
|
|
|
+ * @param key 键
|
|
|
+ * @param value 值
|
|
|
+ * @param time 时间(秒)
|
|
|
+ * @return
|
|
|
+ */
|
|
|
+ public 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) {
|
|
|
+ log.error(e.getMessage(), e);
|
|
|
+ return false;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 将list放入缓存
|
|
|
+ *
|
|
|
+ * @param key 键
|
|
|
+ * @param value 值
|
|
|
+ * @return
|
|
|
+ */
|
|
|
+ public boolean lSet(String key, List<Object> value) {
|
|
|
+ try {
|
|
|
+ redisTemplate.opsForList().rightPushAll(key, value);
|
|
|
+ return true;
|
|
|
+ } catch (Exception e) {
|
|
|
+ log.error(e.getMessage(), e);
|
|
|
+ return false;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 将list放入缓存
|
|
|
+ *
|
|
|
+ * @param key 键
|
|
|
+ * @param value 值
|
|
|
+ * @param time 时间(秒)
|
|
|
+ * @return
|
|
|
+ */
|
|
|
+ public boolean lSet(String key, List<Object> value, long time) {
|
|
|
+ try {
|
|
|
+ redisTemplate.opsForList().rightPushAll(key, value);
|
|
|
+ if (time > 0) {
|
|
|
+ expire(key, time);
|
|
|
+ }
|
|
|
+ return true;
|
|
|
+ } catch (Exception e) {
|
|
|
+ log.error(e.getMessage(), e);
|
|
|
+ return false;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 根据索引修改list中的某条数据
|
|
|
+ *
|
|
|
+ * @param key 键
|
|
|
+ * @param index 索引
|
|
|
+ * @param value 值
|
|
|
+ * @return /
|
|
|
+ */
|
|
|
+ public boolean lUpdateIndex(String key, long index, Object value) {
|
|
|
+ try {
|
|
|
+ redisTemplate.opsForList().set(key, index, value);
|
|
|
+ return true;
|
|
|
+ } catch (Exception e) {
|
|
|
+ log.error(e.getMessage(), e);
|
|
|
+ return false;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 移除N个值为value
|
|
|
+ *
|
|
|
+ * @param key 键
|
|
|
+ * @param count 移除多少个
|
|
|
+ * @param value 值
|
|
|
+ * @return 移除的个数
|
|
|
+ */
|
|
|
+ public long lRemove(String key, long count, Object value) {
|
|
|
+ try {
|
|
|
+ return redisTemplate.opsForList().remove(key, count, value);
|
|
|
+ } catch (Exception e) {
|
|
|
+ log.error(e.getMessage(), e);
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * @param prefix 前缀
|
|
|
+ * @param ids id
|
|
|
+ */
|
|
|
+ public void delByKeys(String prefix, Set<String> ids) {
|
|
|
+ Set<Object> keys = new HashSet<>();
|
|
|
+ for (String id : ids) {
|
|
|
+ keys.addAll(redisTemplate.keys(new StringBuffer(prefix).append(id).toString()));
|
|
|
+ }
|
|
|
+ long count = redisTemplate.delete(keys);
|
|
|
+ // 此处提示可自行删除
|
|
|
+ log.debug("--------------------------------------------");
|
|
|
+ log.debug("成功删除缓存:" + keys.toString());
|
|
|
+ log.debug("缓存删除数量:" + count + "个");
|
|
|
+ log.debug("--------------------------------------------");
|
|
|
+ }
|
|
|
+
|
|
|
+ public void delByKey(String prefix, Set<Long> ids) {
|
|
|
+ Set<Object> keys = new HashSet<>();
|
|
|
+ for (Long id : ids) {
|
|
|
+ keys.addAll(redisTemplate.keys(new StringBuffer(prefix).append(id).toString()));
|
|
|
+ }
|
|
|
+ long count = redisTemplate.delete(keys);
|
|
|
+ // 此处提示可自行删除
|
|
|
+ log.debug("--------------------------------------------");
|
|
|
+ log.debug("成功删除缓存:" + keys.toString());
|
|
|
+ log.debug("缓存删除数量:" + count + "个");
|
|
|
+ log.debug("--------------------------------------------");
|
|
|
+ }
|
|
|
+}
|