diff --git a/mybatis-flex-annotation/src/main/java/com/mybatisflex/processer/MyBatisFlexProps.java b/mybatis-flex-annotation/src/main/java/com/mybatisflex/processer/MyBatisFlexProps.java
index 7d430339..ffd4eed0 100644
--- a/mybatis-flex-annotation/src/main/java/com/mybatisflex/processer/MyBatisFlexProps.java
+++ b/mybatis-flex-annotation/src/main/java/com/mybatisflex/processer/MyBatisFlexProps.java
@@ -68,7 +68,6 @@ class MyBatisFlexProps {
 
             if (inputStream != null) {
                 properties.load(new InputStreamReader(inputStream, encoding));
-            } else if (!fileName.contains("-")) {
             }
         } catch (Exception e) {
         } finally {
diff --git a/mybatis-flex-core/src/main/java/com/mybatisflex/core/exception/FlexExceptions.java b/mybatis-flex-core/src/main/java/com/mybatisflex/core/exception/FlexExceptions.java
index c509ecce..de415f7d 100644
--- a/mybatis-flex-core/src/main/java/com/mybatisflex/core/exception/FlexExceptions.java
+++ b/mybatis-flex-core/src/main/java/com/mybatisflex/core/exception/FlexExceptions.java
@@ -31,7 +31,7 @@ public final class FlexExceptions {
      * @return MybatisFlexException
      */
     public static MybatisFlexException wrap(Throwable throwable) {
-        if (throwable instanceof MybatisFlexException){
+        if (throwable instanceof MybatisFlexException) {
             return (MybatisFlexException) throwable;
         }
         return new MybatisFlexException(throwable);
@@ -63,15 +63,38 @@ public final class FlexExceptions {
 
 
     /**
-     * 抛出一个新的 MybatisFlexException 异常
+     * 断言 condition 必须为 true
      *
-     * @param condition 抛出条件
+     * @param condition 条件
      * @param msg       消息
      * @param params    消息参数
      */
-    public static void throwIf(boolean condition, String msg, Object... params) {
-        if (condition) {
+    public static void assertTrue(boolean condition, String msg, Object... params) {
+        if (!condition) {
             throw wrap(msg, params);
         }
     }
+
+
+    /**
+     * 断言传入的内容不能为 null
+     */
+    public static void assertNotNull(Object object, String msg, Object params) {
+        assertTrue(object != null, msg, params);
+    }
+
+
+    /**
+     * 断言传入的数组内容不能为 null 或者 空
+     */
+    public static <T> void assertAreNotNull(T[] elements, String msg, Object params) {
+        if (elements == null || elements.length == 0) {
+            throw wrap(msg, params);
+        }
+        for (T element : elements) {
+            if (element == null) {
+                throw wrap(msg, params);
+            }
+        }
+    }
 }
diff --git a/mybatis-flex-core/src/main/java/com/mybatisflex/core/provider/EntitySqlProvider.java b/mybatis-flex-core/src/main/java/com/mybatisflex/core/provider/EntitySqlProvider.java
index 0382a104..bf8633a0 100644
--- a/mybatis-flex-core/src/main/java/com/mybatisflex/core/provider/EntitySqlProvider.java
+++ b/mybatis-flex-core/src/main/java/com/mybatisflex/core/provider/EntitySqlProvider.java
@@ -187,6 +187,9 @@ public class EntitySqlProvider {
         TableInfo tableInfo = ProviderUtil.getTableInfo(context);
         Object[] updateValues = tableInfo.obtainUpdateValues(entity, ignoreNulls, false);
         Object[] primaryValues = tableInfo.obtainPrimaryValues(entity);
+
+        FlexExceptions.assertAreNotNull(primaryValues, "The value of primary key must not be null, entity[%s]", entity);
+
         ProviderUtil.setSqlArgs(params, ArrayUtil.concat(updateValues, primaryValues));
 
         return DialectFactory.getDialect().forUpdateEntity(tableInfo, entity, ignoreNulls);
diff --git a/mybatis-flex-core/src/main/java/com/mybatisflex/core/util/ArrayUtil.java b/mybatis-flex-core/src/main/java/com/mybatisflex/core/util/ArrayUtil.java
index 5472c485..a4d6c87c 100644
--- a/mybatis-flex-core/src/main/java/com/mybatisflex/core/util/ArrayUtil.java
+++ b/mybatis-flex-core/src/main/java/com/mybatisflex/core/util/ArrayUtil.java
@@ -88,12 +88,5 @@ public class ArrayUtil {
         return false;
     }
 
-    /**
-     * 急速构建数组
-     */
-    public static <T> T[] asArray(T... elements) {
-        return elements;
-    }
-
 
 }