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@@ -0,0 +1,639 @@
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+package com.kxs.common.core.util;
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+
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+import cn.hutool.core.convert.Convert;
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+import lombok.experimental.UtilityClass;
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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.data.redis.core.script.DefaultRedisScript;
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+import org.springframework.data.redis.core.script.RedisScript;
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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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+ * 缓存工具类
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+ *
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+ * @author 没秃顶的码农
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+ * @date 2023/10/27
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+ */
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+@UtilityClass
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+public class RedisUtils {
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+
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+ private static final Long SUCCESS = 1L;
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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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+ */
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+ public boolean expire(String key, long time) {
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+ RedisTemplate<Object, Object> redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
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+ Optional.ofNullable(redisTemplate)
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+ .filter(template -> time > 0)
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+ .ifPresent(template -> template.expire(key, time, TimeUnit.SECONDS));
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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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+ * @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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+ RedisTemplate<Object, Object> redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
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+ return Optional.ofNullable(redisTemplate)
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+ .map(template -> template.getExpire(key, TimeUnit.SECONDS))
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+ .orElse(-1L);
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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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+ * @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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+ RedisTemplate<Object, Object> redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
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+ ScanOptions options = ScanOptions.scanOptions().match(pattern).build();
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+ return Optional.ofNullable(redisTemplate).map(template -> {
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+ RedisConnectionFactory factory = template.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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+ RedisConnectionUtils.releaseConnection(rc, factory);
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+ return result;
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+ }).orElse(Collections.emptyList());
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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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+ * @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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+ RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
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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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+ RedisConnectionUtils.releaseConnection(rc, factory);
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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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+ * @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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+ RedisTemplate<Object, Object> redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
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+ return Optional.ofNullable(redisTemplate).map(template -> template.hasKey(key)).orElse(false);
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+ }
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+
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+ /**
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+ * 删除缓存
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+ * @param keys 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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+ RedisTemplate<Object, Object> redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
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+ Optional.ofNullable(keys)
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+ .map(Arrays::asList)
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+ .filter(keysList -> !keysList.isEmpty())
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+ .ifPresent(redisTemplate::delete);
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+ }
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+
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+ /**
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+ * 获取锁
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+ * @param lockKey 锁key
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+ * @param value value
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+ * @param expireTime:单位-秒
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+ * @return boolean
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+ */
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+ public boolean getLock(String lockKey, String value, int expireTime) {
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+ RedisTemplate<Object, Object> redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
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+ return Optional.ofNullable(redisTemplate)
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+ .map(template -> template.opsForValue().setIfAbsent(lockKey, value, expireTime, TimeUnit.SECONDS))
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+ .orElse(false);
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+ }
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+
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+ /**
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+ * 释放锁
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+ * @param lockKey 锁key
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+ * @param value value
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+ * @return boolean
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+ */
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+ public boolean releaseLock(String lockKey, String value) {
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+ RedisTemplate<Object, Object> redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
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+ String script = "if redis.call('get', KEYS[1]) == ARGV[1] then return redis.call('del', KEYS[1]) else return 0 end";
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+ RedisScript<Long> redisScript = new DefaultRedisScript<>(script, Long.class);
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+ return Optional.ofNullable(redisTemplate.execute(redisScript, Collections.singletonList(lockKey), value))
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+ .map(Convert::toLong)
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+ .filter(SUCCESS::equals)
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+ .isPresent();
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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 <T> T get(String key) {
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+ RedisTemplate<String, T> redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
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+ return 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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+ * @param keys
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+ * @return
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+ */
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+ public <T> List<T> multiGet(List<String> keys) {
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+ RedisTemplate<String, T> redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
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+ return redisTemplate.opsForValue().multiGet(keys);
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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成功 false失败
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+ */
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+ public boolean set(String key, Object value) {
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+ RedisTemplate<Object, Object> redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
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+ Optional.ofNullable(redisTemplate).map(template -> {
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+ template.opsForValue().set(key, value);
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+ return true;
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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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+ * 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) 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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+ RedisTemplate<Object, Object> redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
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+ return Optional.ofNullable(redisTemplate).map(template -> {
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+ if (time > 0) {
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+ template.opsForValue().set(key, value, time, TimeUnit.SECONDS);
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+ }
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+ else {
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+ template.opsForValue().set(key, value);
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+ }
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+ return true;
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+ }).orElse(false);
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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
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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 <T> boolean set(String key, T value, long time, TimeUnit timeUnit) {
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+ RedisTemplate<String, T> redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
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+ Optional.ofNullable(redisTemplate).map(template -> {
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+ if (time > 0) {
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+ template.opsForValue().set(key, value, time, timeUnit);
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+ }
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+ else {
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+ template.opsForValue().set(key, value);
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+ }
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+ return true;
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+ });
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+ return true;
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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 不能为null
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+ * @param hashKey 项 不能为null
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+ * @return 值
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+ */
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+ public <HK, HV> HV hget(String key, HK hashKey) {
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+ RedisTemplate<String, HV> redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
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+ return redisTemplate.<HK, HV>opsForHash().get(key, hashKey);
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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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+ * @param key 键
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+ * @return 对应的多个键值
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+ */
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+ public <HK, HV> Map<HK, HV> hmget(String key) {
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+ RedisTemplate<String, HV> redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
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+ return redisTemplate.<HK, HV>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 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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+ RedisTemplate<Object, Object> redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
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+ Optional.ofNullable(redisTemplate).map(template -> {
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+ template.opsForHash().putAll(key, map);
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+ return true;
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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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+ * HashSet 并设置时间
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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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+ RedisTemplate<Object, Object> redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
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+ Optional.ofNullable(redisTemplate).map(template -> {
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+ template.opsForHash().putAll(key, map);
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+ if (time > 0) {
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+ template.expire(key, time, TimeUnit.SECONDS);
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+ }
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+ return true;
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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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+ * 向一张hash表中放入数据,如果不存在将创建
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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 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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+ RedisTemplate<Object, Object> redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
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+ return Optional.ofNullable(redisTemplate).map(template -> {
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+ template.opsForHash().put(key, item, value);
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+ return true;
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+ }).orElse(false);
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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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+ * @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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+ RedisTemplate<Object, Object> redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
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+ return Optional.ofNullable(redisTemplate).map(template -> {
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+ template.opsForHash().put(key, item, value);
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+ if (time > 0) {
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+ template.expire(key, time, TimeUnit.SECONDS);
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+ }
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+ return true;
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+ }).orElse(false);
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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 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 redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
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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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+ * @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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+ RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
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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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+ * @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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+ RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
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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 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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+ RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
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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
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+ */
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+ public <T> Set<T> sGet(String key) {
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+ RedisTemplate<String, T> redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
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+ return redisTemplate.opsForSet().members(key);
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+ }
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+
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+ /**
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+ * 根据value从一个set中查询,是否存在
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+ * @param key 键
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+ * @param value 值
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+ * @return true 存在 false不存在
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+ */
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+ public boolean sHasKey(String key, Object value) {
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+ RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
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+ return redisTemplate.opsForSet().isMember(key, value);
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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
|
|
|
+ * @param values 值 可以是多个
|
|
|
+ * @return 成功个数
|
|
|
+ */
|
|
|
+ public long sSet(String key, Object... values) {
|
|
|
+ RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
|
|
|
+ return redisTemplate.opsForSet().add(key, values);
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 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) {
|
|
|
+ RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
|
|
|
+ Long count = redisTemplate.opsForSet().add(key, values);
|
|
|
+ if (time > 0) {
|
|
|
+ expire(key, time);
|
|
|
+ }
|
|
|
+ return count;
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 获取set缓存的长度
|
|
|
+ * @param key 键
|
|
|
+ * @return
|
|
|
+ */
|
|
|
+ public long sGetSetSize(String key) {
|
|
|
+ RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
|
|
|
+ return redisTemplate.opsForSet().size(key);
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 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) {
|
|
|
+ RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
|
|
|
+ Long count = redisTemplate.opsForSet().remove(key, values);
|
|
|
+ return count;
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 获集合key1和集合key2的差集元素
|
|
|
+ * @param key 键
|
|
|
+ * @return
|
|
|
+ */
|
|
|
+ public <T> Set<T> sDifference(String key, String otherKey) {
|
|
|
+ RedisTemplate<String, T> redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
|
|
|
+ return redisTemplate.opsForSet().difference(key, otherKey);
|
|
|
+ }
|
|
|
+
|
|
|
+ // ===============================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 <T> List<T> lGet(String key, long start, long end) {
|
|
|
+ RedisTemplate<String, T> redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
|
|
|
+ return redisTemplate.opsForList().range(key, start, end);
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 获取list缓存的长度
|
|
|
+ * @param key 键
|
|
|
+ * @return
|
|
|
+ */
|
|
|
+ public long lGetListSize(String key) {
|
|
|
+ RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
|
|
|
+ return redisTemplate.opsForList().size(key);
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 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) {
|
|
|
+ RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
|
|
|
+ return redisTemplate.opsForList().index(key, index);
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 将list放入缓存
|
|
|
+ * @param key 键
|
|
|
+ * @param value 值
|
|
|
+ * @return
|
|
|
+ */
|
|
|
+ public boolean lSet(String key, Object value) {
|
|
|
+ RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
|
|
|
+ redisTemplate.opsForList().rightPush(key, value);
|
|
|
+ return true;
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 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) {
|
|
|
+ RedisTemplate<Object, Object> redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
|
|
|
+ redisTemplate.opsForList().rightPush(key, value);
|
|
|
+ if (time > 0) {
|
|
|
+ Optional.ofNullable(redisTemplate).ifPresent(template -> template.expire(key, time, TimeUnit.SECONDS));
|
|
|
+ }
|
|
|
+ return true;
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 将list放入缓存
|
|
|
+ * @param key 键
|
|
|
+ * @param value 值
|
|
|
+ * @return
|
|
|
+ */
|
|
|
+ public boolean lSet(String key, List<Object> value) {
|
|
|
+ RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
|
|
|
+ redisTemplate.opsForList().rightPushAll(key, value);
|
|
|
+ return true;
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 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) {
|
|
|
+ RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
|
|
|
+ redisTemplate.opsForList().rightPushAll(key, value);
|
|
|
+ if (time > 0) {
|
|
|
+ expire(key, time);
|
|
|
+ }
|
|
|
+ return true;
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 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) {
|
|
|
+ RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
|
|
|
+ redisTemplate.opsForList().set(key, index, value);
|
|
|
+ return true;
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 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) {
|
|
|
+ RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
|
|
|
+ return redisTemplate.opsForList().remove(key, count, value);
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 将zSet数据放入缓存
|
|
|
+ * @param key
|
|
|
+ * @param time
|
|
|
+ * @param tuples
|
|
|
+ * @return
|
|
|
+ */
|
|
|
+ public long zSetAndTime(String key, long time, Set<ZSetOperations.TypedTuple<Object>> tuples) {
|
|
|
+ RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
|
|
|
+ Long count = redisTemplate.opsForZSet().add(key, tuples);
|
|
|
+ if (time > 0) {
|
|
|
+ expire(key, time);
|
|
|
+ }
|
|
|
+ return count;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * Sorted set:有序集合获取
|
|
|
+ * @param key
|
|
|
+ * @param min
|
|
|
+ * @param max
|
|
|
+ * @return
|
|
|
+ */
|
|
|
+ public Set<Object> zRangeByScore(String key, double min, double max) {
|
|
|
+ RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
|
|
|
+ ZSetOperations<String, Object> zset = redisTemplate.opsForZSet();
|
|
|
+ return zset.rangeByScore(key, min, max);
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * Sorted set:有序集合获取 正序
|
|
|
+ * @param key
|
|
|
+ * @param start
|
|
|
+ * @param end
|
|
|
+ * @return
|
|
|
+ */
|
|
|
+ public Set<Object> zRange(String key, long start, long end) {
|
|
|
+ RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
|
|
|
+ ZSetOperations<String, Object> zset = redisTemplate.opsForZSet();
|
|
|
+ return zset.range(key, start, end);
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * Sorted set:有序集合获取 倒叙
|
|
|
+ * @param key
|
|
|
+ * @param start
|
|
|
+ * @param end
|
|
|
+ * @return
|
|
|
+ */
|
|
|
+ public Set<Object> zReverseRange(String key, long start, long end) {
|
|
|
+ RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
|
|
|
+ ZSetOperations<String, Object> zset = redisTemplate.opsForZSet();
|
|
|
+ return zset.reverseRange(key, start, end);
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 获取zSet缓存的长度
|
|
|
+ * @param key 键
|
|
|
+ * @return
|
|
|
+ */
|
|
|
+ public long zGetSetSize(String key) {
|
|
|
+ RedisTemplate redisTemplate = SpringContextHolder.getBean(RedisTemplate.class);
|
|
|
+ return redisTemplate.opsForZSet().size(key);
|
|
|
+ }
|
|
|
+
|
|
|
+}
|