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@@ -0,0 +1,611 @@
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+
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+package com.diagbot.util;
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+
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+import org.springframework.beans.factory.annotation.Autowired;
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+import org.springframework.data.redis.core.RedisTemplate;
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+import org.springframework.stereotype.Component;
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+import org.springframework.transaction.annotation.Propagation;
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+import org.springframework.transaction.annotation.Transactional;
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+import org.springframework.util.CollectionUtils;
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+
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+import java.util.Collection;
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+import java.util.List;
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+import java.util.Map;
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+import java.util.Set;
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+import java.util.concurrent.TimeUnit;
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+@Component
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+public class RedisUtils {
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+@Autowired
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+ private RedisTemplate<String, Object> redisTemplate;
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+
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+ public void setRedisTemplate(RedisTemplate<String, Object> redisTemplate) {
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+ this.redisTemplate = redisTemplate;
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+ }
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+ // =============================common============================
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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
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+ * @return 值
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+ */
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+ @Transactional(readOnly = true, propagation = Propagation.REQUIRES_NEW)
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+ public Set<String> keys(String pattern) {
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+ return redisTemplate.keys(pattern);
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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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+ * @return
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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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+ 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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+ *
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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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+ @Transactional(readOnly = true, propagation = Propagation.REQUIRES_NEW)
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+ public 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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+ *
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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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+ @Transactional(readOnly = true, propagation = Propagation.REQUIRES_NEW)
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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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+ 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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+ *
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+ * @param key 可以传一个值 或多个
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+ */
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+ @SuppressWarnings("unchecked")
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+ public void del(String... key) {
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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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+ redisTemplate.delete(CollectionUtils.arrayToList(key));
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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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+ @Transactional(readOnly = true, propagation = Propagation.REQUIRES_NEW)
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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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+ * 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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+ 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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+ /**
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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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+ 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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+ *
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+ * @param key 键
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+ * @param delta 要增加几(大于0)
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+ * @return
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+ */
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+ public 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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+ *
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+ * @param key 键
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+ * @param delta 要减少几(小于0)
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+ * @return
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+ */
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+ public 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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+ *
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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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+ @Transactional(readOnly = true, propagation = Propagation.REQUIRES_NEW)
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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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+ @Transactional(readOnly = true, propagation = Propagation.REQUIRES_NEW)
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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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+ * 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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+ 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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+ *
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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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+ 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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+ 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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+ 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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+ *
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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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+ @Transactional(readOnly = true, propagation = Propagation.REQUIRES_NEW)
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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
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+ * @return
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+ */
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+ @Transactional(readOnly = true, propagation = Propagation.REQUIRES_NEW)
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+ public 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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+ * 根据value从一个set中查询,是否存在
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+ *
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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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+ @Transactional(readOnly = true, propagation = Propagation.REQUIRES_NEW)
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+ public 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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+ *
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+ * @param key 键
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+ * @param values 值 可以是多个
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+ * @return 成功个数
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+ */
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+ public 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set数据放入缓存
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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 values 值 可以是多个
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+ * @return 成功个数
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+ */
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+ public long sSetAndTime(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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+ *
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+ * @param key 键
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+ * @return
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+ */
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+ @Transactional(readOnly = true, propagation = Propagation.REQUIRES_NEW)
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+ public 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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+ * 移除值为value的
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+ *
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+ * @param key 键
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+ * @param values 值 可以是多个
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+ * @return 移除的个数
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+ */
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+ public long setRemove(String key, Object... values) {
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+ try {
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+ Long count = redisTemplate.opsForSet().remove(key, values);
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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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+ // ===============================list=================================
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+
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+ /**
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+ * 获取list缓存的内容
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+ *
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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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+ */
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+ @Transactional(readOnly = true, propagation = Propagation.REQUIRES_NEW)
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+ public List<Object> lGet(String key, long start, long end) {
|
|
|
+ try {
|
|
|
+ return redisTemplate.opsForList().range(key, start, end);
|
|
|
+ } catch (Exception e) {
|
|
|
+ e.printStackTrace();
|
|
|
+ return null;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 获取list缓存的长度
|
|
|
+ *
|
|
|
+ * @param key 键
|
|
|
+ * @return
|
|
|
+ */
|
|
|
+ @Transactional(readOnly = true, propagation = Propagation.REQUIRES_NEW)
|
|
|
+ public long lGetListSize(String key) {
|
|
|
+ try {
|
|
|
+ return redisTemplate.opsForList().size(key);
|
|
|
+ } catch (Exception e) {
|
|
|
+ e.printStackTrace();
|
|
|
+ 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
|
|
|
+ */
|
|
|
+ @Transactional(readOnly = true, propagation = Propagation.REQUIRES_NEW)
|
|
|
+ public Object lGetIndex(String key, long index) {
|
|
|
+ try {
|
|
|
+ return redisTemplate.opsForList().index(key, index);
|
|
|
+ } catch (Exception e) {
|
|
|
+ e.printStackTrace();
|
|
|
+ return null;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 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) {
|
|
|
+ try {
|
|
|
+ redisTemplate.opsForList().rightPush(key, value);
|
|
|
+ return true;
|
|
|
+ } catch (Exception e) {
|
|
|
+ e.printStackTrace();
|
|
|
+ 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) {
|
|
|
+ e.printStackTrace();
|
|
|
+ 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) {
|
|
|
+ try {
|
|
|
+ redisTemplate.opsForList().rightPushAll(key, value);
|
|
|
+ return true;
|
|
|
+ } catch (Exception e) {
|
|
|
+ e.printStackTrace();
|
|
|
+ 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) {
|
|
|
+ e.printStackTrace();
|
|
|
+ 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) {
|
|
|
+ e.printStackTrace();
|
|
|
+ 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 {
|
|
|
+ Long remove = redisTemplate.opsForList().remove(key, count, value);
|
|
|
+ return remove;
|
|
|
+ } catch (Exception e) {
|
|
|
+ e.printStackTrace();
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 按键的排序获取对应的值
|
|
|
+ *
|
|
|
+ * @param keys 多个键
|
|
|
+ * @return List<Object>
|
|
|
+ */
|
|
|
+ @Transactional(readOnly = true, propagation = Propagation.REQUIRES_NEW)
|
|
|
+ public List<Object> mget(Collection<String> keys) {
|
|
|
+ return redisTemplate.opsForValue().multiGet(keys);
|
|
|
+ }
|
|
|
+
|
|
|
+}
|
chengyao