1.代码提交

pqs-common/common-redis/src/main/java/com/njcn/redis/utils/RedisUtil.java

@@ -36,6 +36,24 @@ public class RedisUtil {
         return Objects.isNull(expireTime) ? 0 : expireTime;
     }
 
+    /**
+     * 根据key获取过期时间(切库，切完之后自动换为原来库)
+     */
+    public long getExpire(Integer dbIndex,String key) {
+       return getExpire(dbIndex,key,true);
+    }
+
+    /**
+     * 根据key获取过期时间(切库)true:切回原库 false:不切回原库
+     */
+    public long getExpire(Integer dbIndex,String key,Boolean fly) {
+        Integer index = setDbIndex(dbIndex);
+        Long expireTime = redisTemplate.getExpire(key, TimeUnit.SECONDS);
+        if(fly){
+            setDbIndex(index);
+        }
+        return Objects.isNull(expireTime) ? 0 : expireTime;
+    }
     /**
      * 判断key是否存在
      */
@@ -299,6 +317,12 @@ public class RedisUtil {
         }
         return info;
     }
+
+    /**
+     * 数据切库
+     * @param dbIndex
+     * @return
+     */
     private Integer setDbIndex(Integer dbIndex) {
         if (dbIndex == null || dbIndex > 15 || dbIndex < 0) {
             dbIndex = 0;