diff --git a/src/main/java/com/ruoyi/framework/redis/RedisCache.java b/src/main/java/com/ruoyi/framework/redis/RedisCache.java
index da5329a..121b27b 100644
--- a/src/main/java/com/ruoyi/framework/redis/RedisCache.java
+++ b/src/main/java/com/ruoyi/framework/redis/RedisCache.java
@@ -124,9 +124,9 @@ public class RedisCache
      * @param collection 多个对象
      * @return
      */
-    public long deleteObject(final Collection collection)
+    public boolean deleteObject(final Collection collection)
     {
-        return redisTemplate.delete(collection);
+        return redisTemplate.delete(collection) > 0;
     }
 
     /**
@@ -231,18 +231,6 @@ public class RedisCache
         return opsForHash.get(key, hKey);
     }
 
-    /**
-     * 删除Hash中的数据
-     * 
-     * @param key
-     * @param hKey
-     */
-    public void delCacheMapValue(final String key, final String hKey)
-    {
-        HashOperations hashOperations = redisTemplate.opsForHash();
-        hashOperations.delete(key, hKey);
-    }
-
     /**
      * 获取多个Hash中的数据
      *
@@ -264,7 +252,7 @@ public class RedisCache
      */
     public boolean deleteCacheMapValue(final String key, final String hKey)
     {
-        return Boolean.TRUE.equals(redisTemplate.opsForHash().delete(key, hKey));
+        return redisTemplate.opsForHash().delete(key, hKey) > 0;
     }
 
     /**
diff --git a/src/main/java/com/ruoyi/project/system/controller/SysDeptController.java b/src/main/java/com/ruoyi/project/system/controller/SysDeptController.java
index 793b0db..a4a9714 100644
--- a/src/main/java/com/ruoyi/project/system/controller/SysDeptController.java
+++ b/src/main/java/com/ruoyi/project/system/controller/SysDeptController.java
@@ -1,6 +1,5 @@
 package com.ruoyi.project.system.controller;
 
-import java.util.Iterator;
 import java.util.List;
 import org.apache.commons.lang3.ArrayUtils;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -54,16 +53,7 @@ public class SysDeptController extends BaseController
     public AjaxResult excludeChild(@PathVariable(value = "deptId", required = false) Long deptId)
     {
         List<SysDept> depts = deptService.selectDeptList(new SysDept());
-        Iterator<SysDept> it = depts.iterator();
-        while (it.hasNext())
-        {
-            SysDept d = (SysDept) it.next();
-            if (d.getDeptId().intValue() == deptId
-                    || ArrayUtils.contains(StringUtils.split(d.getAncestors(), ","), deptId + ""))
-            {
-                it.remove();
-            }
-        }
+        depts.removeIf(d -> d.getDeptId().intValue() == deptId || ArrayUtils.contains(StringUtils.split(d.getAncestors(), ","), deptId + ""));
         return AjaxResult.success(depts);
     }
 
diff --git a/src/main/java/com/ruoyi/project/system/domain/SysDictData.java b/src/main/java/com/ruoyi/project/system/domain/SysDictData.java
index 8f7ec61..7d72f89 100644
--- a/src/main/java/com/ruoyi/project/system/domain/SysDictData.java
+++ b/src/main/java/com/ruoyi/project/system/domain/SysDictData.java
@@ -131,7 +131,7 @@ public class SysDictData extends BaseEntity
 
     public boolean getDefault()
     {
-        return UserConstants.YES.equals(this.isDefault) ? true : false;
+        return UserConstants.YES.equals(this.isDefault);
     }
 
     public String getIsDefault()