diff --git a/orm/src/main/java/com/zfoo/orm/codec/BaseTypeKeyMapCodec.java b/orm/src/main/java/com/zfoo/orm/codec/BaseTypeKeyMapCodec.java
index 295186a7..776d8ca1 100644
--- a/orm/src/main/java/com/zfoo/orm/codec/BaseTypeKeyMapCodec.java
+++ b/orm/src/main/java/com/zfoo/orm/codec/BaseTypeKeyMapCodec.java
@@ -34,9 +34,7 @@ public class BaseTypeKeyMapCodec<K,V> implements Codec<Map<K, V>> {
         for (var entry : map.entrySet()) {
             var key = entry.getKey();
             var value = entry.getValue();
-            MapKeyCodec<K> codec = (MapKeyCodec<K>) BaseTypeEnum.getCodec(keyCodec.getEncoderClass());
-            String keyValue = codec.encode(key);
-            writer.writeName(keyValue);
+            writer.writeName(key.toString());
             if (value == null) {
                 writer.writeNull();
             } else {
diff --git a/orm/src/main/java/com/zfoo/orm/codec/MapKeyCodec.java b/orm/src/main/java/com/zfoo/orm/codec/MapKeyCodec.java
index 5d7523c8..a9c4bbca 100644
--- a/orm/src/main/java/com/zfoo/orm/codec/MapKeyCodec.java
+++ b/orm/src/main/java/com/zfoo/orm/codec/MapKeyCodec.java
@@ -6,17 +6,8 @@ package com.zfoo.orm.codec;
  * @Date：2024/6/17 13:51
  */
 public interface MapKeyCodec<K> {
-    /**
-     * 编码
-     * @param value
-     * @return
-     */
-    String encode(K value);
-
     /**
      * 解析
-     * @param text
-     * @return
      */
-    K decode(String text);
+    K decode(String key);
 }
diff --git a/orm/src/main/java/com/zfoo/orm/codec/basetype/BooleanMapCodec.java b/orm/src/main/java/com/zfoo/orm/codec/basetype/BooleanMapCodec.java
index 832df574..e5a49d22 100644
--- a/orm/src/main/java/com/zfoo/orm/codec/basetype/BooleanMapCodec.java
+++ b/orm/src/main/java/com/zfoo/orm/codec/basetype/BooleanMapCodec.java
@@ -7,31 +7,9 @@ import com.zfoo.orm.codec.MapKeyCodec;
  * @Date：2024/6/17 11:32
  */
 public class BooleanMapCodec implements MapKeyCodec<Boolean> {
-
-
     @Override
-    public String encode(Boolean value) {
-        return value ? "True" : "False";
+    public Boolean decode(String key) {
+        return Boolean.valueOf(key);
     }
 
-    @Override
-    public Boolean decode(String text) {
-        if (text == null) {
-            throw new java.lang.NullPointerException();
-        } else if (isValidName(true, text)) {
-            return true;
-        } else if (isValidName(false, text)) {
-            return false;
-        } else {
-            throw new java.lang.IllegalArgumentException(text);
-        }
-    }
-
-    private String getValidName(boolean value) {
-        return value ? "True" : "False";
-    }
-
-    private boolean isValidName(boolean value, String name) {
-        return getValidName(value).equalsIgnoreCase(name);
-    }
 }
diff --git a/orm/src/main/java/com/zfoo/orm/codec/basetype/ByteMapCodec.java b/orm/src/main/java/com/zfoo/orm/codec/basetype/ByteMapCodec.java
index fe234e76..73408df4 100644
--- a/orm/src/main/java/com/zfoo/orm/codec/basetype/ByteMapCodec.java
+++ b/orm/src/main/java/com/zfoo/orm/codec/basetype/ByteMapCodec.java
@@ -9,12 +9,7 @@ import com.zfoo.orm.codec.MapKeyCodec;
  */
 public class ByteMapCodec implements MapKeyCodec<Byte> {
     @Override
-    public String encode(Byte value) {
-        return value.toString();
-    }
-
-    @Override
-    public Byte decode(String text) {
-        return (text == null) ? null : Byte.decode(text);
+    public Byte decode(String key) {
+        return Byte.valueOf(key);
     }
 }
diff --git a/orm/src/main/java/com/zfoo/orm/codec/basetype/CharacterMapCodec.java b/orm/src/main/java/com/zfoo/orm/codec/basetype/CharacterMapCodec.java
index 58bfc72c..0b11b90c 100644
--- a/orm/src/main/java/com/zfoo/orm/codec/basetype/CharacterMapCodec.java
+++ b/orm/src/main/java/com/zfoo/orm/codec/basetype/CharacterMapCodec.java
@@ -1,7 +1,6 @@
 package com.zfoo.orm.codec.basetype;
 
 import com.zfoo.orm.codec.MapKeyCodec;
-import org.springframework.util.StringUtils;
 
 
 /**
@@ -9,17 +8,10 @@ import org.springframework.util.StringUtils;
  * @Date：2024/6/17 11:34
  */
 public class CharacterMapCodec implements MapKeyCodec<Character> {
-    @Override
-    public String encode(Character value) {
-        return value.toString();
-    }
 
     @Override
-    public Character decode(String text) {
-        if (!StringUtils.hasLength(text)) {
-           return null;
-        } else {
-            return text.charAt(0);
-        }
+    public Character decode(String key) {
+        return key.charAt(0);
     }
+
 }
diff --git a/orm/src/main/java/com/zfoo/orm/codec/basetype/DoubleMapCodec.java b/orm/src/main/java/com/zfoo/orm/codec/basetype/DoubleMapCodec.java
index a39b8f6b..e6743974 100644
--- a/orm/src/main/java/com/zfoo/orm/codec/basetype/DoubleMapCodec.java
+++ b/orm/src/main/java/com/zfoo/orm/codec/basetype/DoubleMapCodec.java
@@ -9,12 +9,7 @@ import com.zfoo.orm.codec.MapKeyCodec;
 public class DoubleMapCodec implements MapKeyCodec<Double> {
 
     @Override
-    public String encode(Double value) {
-        return value.toString();
-    }
-
-    @Override
-    public Double decode(String text) {
-        return (text == null) ? null : Double.valueOf(text);
+    public Double decode(String key) {
+        return Double.valueOf(key);
     }
 }
diff --git a/orm/src/main/java/com/zfoo/orm/codec/basetype/FloatMapCodec.java b/orm/src/main/java/com/zfoo/orm/codec/basetype/FloatMapCodec.java
index 089900ad..5b6f1778 100644
--- a/orm/src/main/java/com/zfoo/orm/codec/basetype/FloatMapCodec.java
+++ b/orm/src/main/java/com/zfoo/orm/codec/basetype/FloatMapCodec.java
@@ -9,12 +9,7 @@ import com.zfoo.orm.codec.MapKeyCodec;
 public class FloatMapCodec implements MapKeyCodec<Float> {
 
     @Override
-    public String encode(Float value) {
-        return value.toString();
-    }
-
-    @Override
-    public Float decode(String text) {
-        return (text == null) ? null : Float.valueOf(text);
+    public Float decode(String key) {
+        return Float.valueOf(key);
     }
 }
diff --git a/orm/src/main/java/com/zfoo/orm/codec/basetype/IntMapCodec.java b/orm/src/main/java/com/zfoo/orm/codec/basetype/IntMapCodec.java
index 2e9e8a6e..f5d54f48 100644
--- a/orm/src/main/java/com/zfoo/orm/codec/basetype/IntMapCodec.java
+++ b/orm/src/main/java/com/zfoo/orm/codec/basetype/IntMapCodec.java
@@ -10,14 +10,8 @@ import com.zfoo.orm.codec.MapKeyCodec;
  */
 public class IntMapCodec implements MapKeyCodec<Integer> {
 
-
     @Override
-    public String encode(Integer value) {
-        return value.toString();
-    }
-
-    @Override
-    public Integer decode(String text) {
-        return (text == null) ? null : Integer.parseInt(text);
+    public Integer decode(String key) {
+        return Integer.valueOf(key);
     }
 }
diff --git a/orm/src/main/java/com/zfoo/orm/codec/basetype/LongMapCodec.java b/orm/src/main/java/com/zfoo/orm/codec/basetype/LongMapCodec.java
index be15c9a5..d0f0f5cc 100644
--- a/orm/src/main/java/com/zfoo/orm/codec/basetype/LongMapCodec.java
+++ b/orm/src/main/java/com/zfoo/orm/codec/basetype/LongMapCodec.java
@@ -10,14 +10,8 @@ import com.zfoo.orm.codec.MapKeyCodec;
  */
 public class LongMapCodec implements MapKeyCodec<Long> {
 
-
     @Override
-    public String encode(Long value) {
-        return value.toString();
-    }
-
-    @Override
-    public Long decode(String text) {
-        return (text == null) ? null : Long.parseLong(text);
+    public Long decode(String key) {
+        return Long.valueOf(key);
     }
 }
diff --git a/orm/src/main/java/com/zfoo/orm/codec/basetype/ShortMapCodec.java b/orm/src/main/java/com/zfoo/orm/codec/basetype/ShortMapCodec.java
index cbf5c6e2..cdad2085 100644
--- a/orm/src/main/java/com/zfoo/orm/codec/basetype/ShortMapCodec.java
+++ b/orm/src/main/java/com/zfoo/orm/codec/basetype/ShortMapCodec.java
@@ -8,12 +8,7 @@ import com.zfoo.orm.codec.MapKeyCodec;
  */
 public class ShortMapCodec implements MapKeyCodec<Short> {
     @Override
-    public String encode(Short value) {
-        return value.toString();
-    }
-
-    @Override
-    public Short decode(String text) {
-        return (text == null) ? null : Short.parseShort(text);
+    public Short decode(String key) {
+        return Short.valueOf(key);
     }
 }