【fix sonar】RedisUtil文件

jero-boot/jero-boot-base/jero-boot-base-tools/src/main/java/com/jero/common/util/RedisUtil.java

@@ -1,9 +1,6 @@
 package com.jero.common.util;
 
-import java.util.HashSet;
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
+import java.util.*;
 import java.util.concurrent.TimeUnit;
 
 import org.springframework.beans.factory.annotation.Autowired;
@@ -320,7 +317,7 @@ public class RedisUtil {
 			return redisTemplate.opsForSet().members(key);
 		} catch (Exception e) {
 			e.printStackTrace();
-			return null;
+			return Collections.emptySet();
 		}
 	}
 
@@ -401,8 +398,7 @@ public class RedisUtil {
 	 */
 	public long setRemove(String key, Object... values) {
 		try {
-			Long count = redisTemplate.opsForSet().remove(key, values);
-			return count;
+			return redisTemplate.opsForSet().remove(key, values);
 		} catch (Exception e) {
 			e.printStackTrace();
 			return 0;
@@ -423,7 +419,7 @@ public class RedisUtil {
 			return redisTemplate.opsForList().range(key, start, end);
 		} catch (Exception e) {
 			e.printStackTrace();
-			return null;
+			return Collections.emptyList();
 		}
 	}
 
@@ -564,8 +560,7 @@ public class RedisUtil {
 	 */
 	public long lRemove(String key, long count, Object value) {
 		try {
-			Long remove = redisTemplate.opsForList().remove(key, count, value);
-			return remove;
+			return redisTemplate.opsForList().remove(key, count, value);
 		} catch (Exception e) {
 			e.printStackTrace();
 			return 0;
@@ -592,11 +587,11 @@ public class RedisUtil {
 
 				return binaryKeys;
 			});
-		} catch (Throwable e) {
+		} catch (Exception e) {
 			e.printStackTrace();
 		}
 
-		return null;
+		return Collections.emptySet();
 	}
 
 	/**
@@ -606,8 +601,11 @@ public class RedisUtil {
 	public void removeAll(String keyPrefix) {
 		try {
 			Set<String> keys = keys(keyPrefix);
+			if(keys == null){
+				return;
+			}
 			redisTemplate.delete(keys);
-		} catch (Throwable e) {
+		}catch (Exception e){
 			e.printStackTrace();
 		}
 	}