Polish

commons/common-util/src/main/java/com/schbrain/common/util/StreamUtils.java

@@ -41,7 +41,7 @@ public class StreamUtils {
         return filter(data, predicate, mapper, Collectors.toSet());
     }
 
-    public static <T, E, V, R> R filter(Iterable<T> data, Predicate<T> predicate, Function<T, V> valueMapper, Collector<V, ?, R> collector) {
+    public static <T, V, R> R filter(Iterable<T> data, Predicate<T> predicate, Function<T, V> valueMapper, Collector<V, ?, R> collector) {
         return from(data).filter(predicate).map(valueMapper).collect(collector);
     }
 

starters/cache-spring-boot-starter/src/main/java/com/schbrain/framework/autoconfigure/cache/CacheUtils.java

@@ -25,6 +25,13 @@ public class CacheUtils {
         CacheUtils.cacheProvider = cacheProvider;
     }
 
+    /**
+     * 缓存是否存在
+     */
+    public static boolean hasKey(String cacheKey) {
+        return getCacheProvider().hasKey(cacheKey);
+    }
+
     /**
      * 缓存是否过期
      */