diff --git a/diboot-core/src/main/java/com/diboot/core/mapper/BaseCrudMapper.java b/diboot-core/src/main/java/com/diboot/core/mapper/BaseCrudMapper.java
index 6f66a21..635856b 100644
--- a/diboot-core/src/main/java/com/diboot/core/mapper/BaseCrudMapper.java
+++ b/diboot-core/src/main/java/com/diboot/core/mapper/BaseCrudMapper.java
@@ -5,8 +5,8 @@ import com.baomidou.mybatisplus.core.mapper.BaseMapper;
 /**
  * 基础CRUD的父类Mapper
  * @author Mazhicheng
- * @version 2018/12/22
- * Copyright © www.dibo.ltd
+ * @version v2.0
+ * @date 2018/12/22
  */
 public interface BaseCrudMapper<T> extends BaseMapper<T> {
 
diff --git a/diboot-core/src/main/java/com/diboot/core/mapper/MetadataMapper.java b/diboot-core/src/main/java/com/diboot/core/mapper/MetadataMapper.java
index 41bca4d..17c0c25 100644
--- a/diboot-core/src/main/java/com/diboot/core/mapper/MetadataMapper.java
+++ b/diboot-core/src/main/java/com/diboot/core/mapper/MetadataMapper.java
@@ -5,8 +5,8 @@ import com.diboot.core.entity.Metadata;
 /**
  * 元数据Mapper
  * @author Mazhicheng
- * @version 2018/12/22
- * Copyright © www.dibo.ltd
+ * @version v2.0
+ * @date 2018/12/22
  */
 public interface MetadataMapper extends BaseCrudMapper<Metadata> {
 
diff --git a/diboot-core/src/main/java/com/diboot/core/util/V.java b/diboot-core/src/main/java/com/diboot/core/util/V.java
index 91b0a22..91493f4 100644
--- a/diboot-core/src/main/java/com/diboot/core/util/V.java
+++ b/diboot-core/src/main/java/com/diboot/core/util/V.java
@@ -22,7 +22,21 @@ public class V {
 	 * @return
 	 */
 	public static boolean isEmpty(Object obj){
-		return obj == null;
+		if(obj instanceof String){
+			return isEmpty((String)obj);
+		}
+		else if(obj instanceof Collection){
+			return isEmpty((Collection)obj);
+		}
+		else if(obj instanceof Map){
+			return isEmpty((Map)obj);
+		}
+		else if(obj instanceof String[]){
+			return isEmpty((String[])obj);
+		}
+		else{
+			return obj == null;
+		}
 	}
 
 	/***
@@ -67,7 +81,21 @@ public class V {
 	 * @return
 	 */
 	public static boolean notEmpty(Object obj){
-		return obj != null;
+		if(obj instanceof String){
+			return notEmpty((String)obj);
+		}
+		else if(obj instanceof Collection){
+			return notEmpty((Collection)obj);
+		}
+		else if(obj instanceof Map){
+			return notEmpty((Map)obj);
+		}
+		else if(obj instanceof String[]){
+			return notEmpty((String[])obj);
+		}
+		else{
+			return obj != null;
+		}
 	}
 
 	/***