diff --git a/src/org/redkale/convert/ArrayDecoder.java b/src/org/redkale/convert/ArrayDecoder.java
index 370ed1511..464adb63f 100644
--- a/src/org/redkale/convert/ArrayDecoder.java
+++ b/src/org/redkale/convert/ArrayDecoder.java
@@ -66,7 +66,7 @@ public class ArrayDecoder<T> implements Decodeable<Reader, T[]> {
     }
 
     public T[] convertFrom(Reader in, DeMember member) {
-        int len = in.readArrayB(member);
+        int len = in.readArrayB(member, decoder);
         int contentLength = -1;
         if (len == Reader.SIGN_NULL) return null;
         if (len == Reader.SIGN_NOLENBUTBYTES) {
diff --git a/src/org/redkale/convert/CollectionDecoder.java b/src/org/redkale/convert/CollectionDecoder.java
index 853a877cb..a7e64543a 100644
--- a/src/org/redkale/convert/CollectionDecoder.java
+++ b/src/org/redkale/convert/CollectionDecoder.java
@@ -66,7 +66,7 @@ public class CollectionDecoder<T> implements Decodeable<Reader, Collection<T>> {
     }
 
     public Collection<T> convertFrom(Reader in, DeMember member) {
-        int len = in.readArrayB(member);
+        int len = in.readArrayB(member, decoder);
         int contentLength = -1;
         if (len == Reader.SIGN_NULL) return null;
         if (len == Reader.SIGN_NOLENBUTBYTES) {
diff --git a/src/org/redkale/convert/MapDecoder.java b/src/org/redkale/convert/MapDecoder.java
index c8993451a..cec99de44 100644
--- a/src/org/redkale/convert/MapDecoder.java
+++ b/src/org/redkale/convert/MapDecoder.java
@@ -91,7 +91,7 @@ public class MapDecoder<K, V> implements Decodeable<Reader, Map<K, V>> {
                 }
             }
         }
-        int len = in.readMapB(member);
+        int len = in.readMapB(member, this.keyDecoder);
         int contentLength = -1;
         if (len == Reader.SIGN_NULL) return null;
         if (len == Reader.SIGN_NOLENBUTBYTES) {
diff --git a/src/org/redkale/convert/Reader.java b/src/org/redkale/convert/Reader.java
index 65086afdf..6e40d3209 100644
--- a/src/org/redkale/convert/Reader.java
+++ b/src/org/redkale/convert/Reader.java
@@ -94,11 +94,12 @@ public abstract class Reader {
     /**
      * 读取数组的开头并返回数组的长度
      *
-     * @param member DeMember
+     * @param member  DeMember
+     * @param decoder Decodeable
      *
      * @return 返回数组的长度
      */
-    public abstract int readArrayB(DeMember member);
+    public abstract int readArrayB(DeMember member, Decodeable decoder);
 
     /**
      * 读取数组的尾端
@@ -109,11 +110,12 @@ public abstract class Reader {
     /**
      * 读取map的开头并返回map的size
      *
-     * @param member DeMember
+     * @param member     DeMember
+     * @param keydecoder Decodeable
      *
      * @return 返回map的size
      */
-    public abstract int readMapB(DeMember member);
+    public abstract int readMapB(DeMember member, Decodeable keydecoder);
 
     /**
      * 读取数组的尾端
diff --git a/src/org/redkale/convert/StreamDecoder.java b/src/org/redkale/convert/StreamDecoder.java
index 81f9d90c6..658728147 100644
--- a/src/org/redkale/convert/StreamDecoder.java
+++ b/src/org/redkale/convert/StreamDecoder.java
@@ -62,7 +62,7 @@ public class StreamDecoder<T> implements Decodeable<Reader, Stream<T>> {
     }
 
     public Stream<T> convertFrom(Reader in, DeMember member) {
-        int len = in.readArrayB(member);
+        int len = in.readArrayB(member, this.decoder);
         int contentLength = -1;
         if (len == Reader.SIGN_NULL) return null;
         if (len == Reader.SIGN_NOLENBUTBYTES) {
diff --git a/src/org/redkale/convert/bson/BsonByteBufferReader.java b/src/org/redkale/convert/bson/BsonByteBufferReader.java
index 265ff72e0..98f2a7c70 100644
--- a/src/org/redkale/convert/bson/BsonByteBufferReader.java
+++ b/src/org/redkale/convert/bson/BsonByteBufferReader.java
@@ -51,10 +51,12 @@ public class BsonByteBufferReader extends BsonReader {
     /**
      * 判断下一个非空白字节是否为[
      *
+     * @param member  DeMember
+     * @param decoder Decodeable
      * @return 数组长度或 SIGN_NULL
      */
     @Override
-    public final int readArrayB(DeMember member) {
+    public final int readArrayB(DeMember member, Decodeable decoder) {
         short bt = readShort();
         if (bt == Reader.SIGN_NULL) return bt;
         short lt = readShort();
diff --git a/src/org/redkale/convert/bson/BsonReader.java b/src/org/redkale/convert/bson/BsonReader.java
index 0aa70b110..de14e7ce7 100644
--- a/src/org/redkale/convert/bson/BsonReader.java
+++ b/src/org/redkale/convert/bson/BsonReader.java
@@ -171,8 +171,8 @@ public class BsonReader extends Reader {
     }
 
     @Override
-    public final int readMapB(DeMember member) {
-        return readArrayB(member);
+    public final int readMapB(DeMember member, Decodeable keydecoder) {
+        return readArrayB(member, keydecoder);
     }
 
     @Override
@@ -185,7 +185,7 @@ public class BsonReader extends Reader {
      * @return 数组长度或SIGN_NULL
      */
     @Override
-    public int readArrayB(DeMember member) {
+    public int readArrayB(DeMember member, Decodeable decoder) {
         short bt = readShort();
         if (bt == Reader.SIGN_NULL) return bt;
         return (bt & 0xffff) << 16 | ((content[++this.position] & 0xff) << 8) | (content[++this.position] & 0xff);
@@ -263,7 +263,7 @@ public class BsonReader extends Reader {
 
     @Override
     public final byte[] readByteArray() {
-        int len = readArrayB(null);
+        int len = readArrayB(null, null);
         int contentLength = -1;
         if (len == Reader.SIGN_NULL) return null;
         if (len == Reader.SIGN_NOLENBUTBYTES) {
diff --git a/src/org/redkale/convert/ext/BoolArraySimpledCoder.java b/src/org/redkale/convert/ext/BoolArraySimpledCoder.java
index 1d136c721..dc05864a9 100644
--- a/src/org/redkale/convert/ext/BoolArraySimpledCoder.java
+++ b/src/org/redkale/convert/ext/BoolArraySimpledCoder.java
@@ -42,7 +42,7 @@ public final class BoolArraySimpledCoder<R extends Reader, W extends Writer> ext
 
     @Override
     public boolean[] convertFrom(R in) {
-        int len = in.readArrayB(null);
+        int len = in.readArrayB(null, BoolSimpledCoder.instance);
         int contentLength = -1;
         if (len == Reader.SIGN_NULL) return null;
         if (len == Reader.SIGN_NOLENBUTBYTES) {
diff --git a/src/org/redkale/convert/ext/ByteBufferSimpledCoder.java b/src/org/redkale/convert/ext/ByteBufferSimpledCoder.java
index 91aa76107..54781e025 100644
--- a/src/org/redkale/convert/ext/ByteBufferSimpledCoder.java
+++ b/src/org/redkale/convert/ext/ByteBufferSimpledCoder.java
@@ -43,7 +43,7 @@ public final class ByteBufferSimpledCoder<R extends Reader, W extends Writer> ex
 
     @Override
     public ByteBuffer convertFrom(R in) {
-        int len = in.readArrayB(null);
+        int len = in.readArrayB(null, ByteSimpledCoder.instance);
         int contentLength = -1;
         if (len == Reader.SIGN_NULL) return null;
         if (len == Reader.SIGN_NOLENBUTBYTES) {
diff --git a/src/org/redkale/convert/ext/CharArraySimpledCoder.java b/src/org/redkale/convert/ext/CharArraySimpledCoder.java
index 220252849..3e0a07416 100644
--- a/src/org/redkale/convert/ext/CharArraySimpledCoder.java
+++ b/src/org/redkale/convert/ext/CharArraySimpledCoder.java
@@ -42,7 +42,7 @@ public final class CharArraySimpledCoder<R extends Reader, W extends Writer> ext
 
     @Override
     public char[] convertFrom(R in) {
-        int len = in.readArrayB(null);
+        int len = in.readArrayB(null, CharSimpledCoder.instance);
         int contentLength = -1;
         if (len == Reader.SIGN_NULL) return null;
         if (len == Reader.SIGN_NOLENBUTBYTES) {
diff --git a/src/org/redkale/convert/ext/DoubleArraySimpledCoder.java b/src/org/redkale/convert/ext/DoubleArraySimpledCoder.java
index d8288b406..b62894877 100644
--- a/src/org/redkale/convert/ext/DoubleArraySimpledCoder.java
+++ b/src/org/redkale/convert/ext/DoubleArraySimpledCoder.java
@@ -43,7 +43,7 @@ public final class DoubleArraySimpledCoder<R extends Reader, W extends Writer> e
 
     @Override
     public double[] convertFrom(R in) {
-        int len = in.readArrayB(null);
+        int len = in.readArrayB(null, DoubleSimpledCoder.instance);
         int contentLength = -1;
         if (len == Reader.SIGN_NULL) return null;
         if (len == Reader.SIGN_NOLENBUTBYTES) {
diff --git a/src/org/redkale/convert/ext/FloatArraySimpledCoder.java b/src/org/redkale/convert/ext/FloatArraySimpledCoder.java
index ec5f253a1..960c52548 100644
--- a/src/org/redkale/convert/ext/FloatArraySimpledCoder.java
+++ b/src/org/redkale/convert/ext/FloatArraySimpledCoder.java
@@ -42,7 +42,7 @@ public final class FloatArraySimpledCoder<R extends Reader, W extends Writer> ex
 
     @Override
     public float[] convertFrom(R in) {
-        int len = in.readArrayB(null);
+        int len = in.readArrayB(null, FloatSimpledCoder.instance);
         int contentLength = -1;
         if (len == Reader.SIGN_NULL) return null;
         if (len == Reader.SIGN_NOLENBUTBYTES) {
diff --git a/src/org/redkale/convert/ext/IntArraySimpledCoder.java b/src/org/redkale/convert/ext/IntArraySimpledCoder.java
index de243ee7a..f931840e8 100644
--- a/src/org/redkale/convert/ext/IntArraySimpledCoder.java
+++ b/src/org/redkale/convert/ext/IntArraySimpledCoder.java
@@ -43,7 +43,7 @@ public final class IntArraySimpledCoder<R extends Reader, W extends Writer> exte
 
     @Override
     public int[] convertFrom(R in) {
-        int len = in.readArrayB(null);
+        int len = in.readArrayB(null, IntSimpledCoder.instance);
         int contentLength = -1;
         if (len == Reader.SIGN_NULL) return null;
         if (len == Reader.SIGN_NOLENBUTBYTES) {
diff --git a/src/org/redkale/convert/ext/LongArraySimpledCoder.java b/src/org/redkale/convert/ext/LongArraySimpledCoder.java
index e3c3e494f..5c931496e 100644
--- a/src/org/redkale/convert/ext/LongArraySimpledCoder.java
+++ b/src/org/redkale/convert/ext/LongArraySimpledCoder.java
@@ -43,7 +43,7 @@ public final class LongArraySimpledCoder<R extends Reader, W extends Writer> ext
 
     @Override
     public long[] convertFrom(R in) {
-        int len = in.readArrayB(null);
+        int len = in.readArrayB(null, LongSimpledCoder.instance);
         int contentLength = -1;
         if (len == Reader.SIGN_NULL) return null;
         if (len == Reader.SIGN_NOLENBUTBYTES) {
diff --git a/src/org/redkale/convert/ext/ShortArraySimpledCoder.java b/src/org/redkale/convert/ext/ShortArraySimpledCoder.java
index 66fea3d71..f3562c361 100644
--- a/src/org/redkale/convert/ext/ShortArraySimpledCoder.java
+++ b/src/org/redkale/convert/ext/ShortArraySimpledCoder.java
@@ -42,7 +42,7 @@ public final class ShortArraySimpledCoder<R extends Reader, W extends Writer> ex
 
     @Override
     public short[] convertFrom(R in) {
-        int len = in.readArrayB(null);
+        int len = in.readArrayB(null, ShortSimpledCoder.instance);
         int contentLength = -1;
         if (len == Reader.SIGN_NULL) return null;
         if (len == Reader.SIGN_NOLENBUTBYTES) {
diff --git a/src/org/redkale/convert/ext/StringArraySimpledCoder.java b/src/org/redkale/convert/ext/StringArraySimpledCoder.java
index 7e50a7567..1894b76e1 100644
--- a/src/org/redkale/convert/ext/StringArraySimpledCoder.java
+++ b/src/org/redkale/convert/ext/StringArraySimpledCoder.java
@@ -44,7 +44,7 @@ public final class StringArraySimpledCoder<R extends Reader, W extends Writer> e
     }
 
     public String[] convertFrom(R in, DeMember member) {
-        int len = in.readArrayB(member);
+        int len = in.readArrayB(member, StringSimpledCoder.instance);
         int contentLength = -1;
         if (len == Reader.SIGN_NULL) return null;
         if (len == Reader.SIGN_NOLENBUTBYTES) {
diff --git a/src/org/redkale/convert/json/JsonByteBufferReader.java b/src/org/redkale/convert/json/JsonByteBufferReader.java
index ebc422e00..1c1085b32 100644
--- a/src/org/redkale/convert/json/JsonByteBufferReader.java
+++ b/src/org/redkale/convert/json/JsonByteBufferReader.java
@@ -132,12 +132,13 @@ public class JsonByteBufferReader extends JsonReader {
     /**
      * 判断下一个非空白字符是否为[
      *
-     * @param member DeMember
+     * @param member  DeMember
+     * @param decoder Decodeable
      *
      * @return SIGN_NOLENGTH 或 SIGN_NULL
      */
     @Override
-    public final int readArrayB(DeMember member) {
+    public final int readArrayB(DeMember member, Decodeable decoder) {
         char ch = nextGoodChar();
         if (ch == '[' || ch == '{') return SIGN_NOLENGTH;
         if (ch == 'n' && nextChar() == 'u' && nextChar() == 'l' && nextChar() == 'l') return SIGN_NULL;
diff --git a/src/org/redkale/convert/json/JsonReader.java b/src/org/redkale/convert/json/JsonReader.java
index c47e8e781..c6808d677 100644
--- a/src/org/redkale/convert/json/JsonReader.java
+++ b/src/org/redkale/convert/json/JsonReader.java
@@ -189,13 +189,14 @@ public class JsonReader extends Reader {
     /**
      * 判断下一个非空白字符是否为{
      *
-     * @param member DeMember
+     * @param member     DeMember
+     * @param keydecoder Decodeable
      *
      * @return SIGN_NOLENGTH 或 SIGN_NULL
      */
     @Override
-    public final int readMapB(DeMember member) {
-        return readArrayB(member);
+    public final int readMapB(DeMember member, Decodeable keydecoder) {
+        return readArrayB(member, keydecoder);
     }
 
     @Override
@@ -205,12 +206,13 @@ public class JsonReader extends Reader {
     /**
      * 判断下一个非空白字符是否为[
      *
-     * @param member DeMember
+     * @param member  DeMember
+     * @param decoder Decodeable
      *
      * @return SIGN_NOLENGTH 或 SIGN_NULL
      */
     @Override
-    public int readArrayB(DeMember member) {
+    public int readArrayB(DeMember member, Decodeable decoder) {
         char ch = this.text[++this.position];
         if (ch == '[') return SIGN_NOLENGTH;
         if (ch == '{') return SIGN_NOLENGTH;
@@ -472,7 +474,7 @@ public class JsonReader extends Reader {
 
     @Override
     public final byte[] readByteArray() {
-        int len = readArrayB(null);
+        int len = readArrayB(null, null);
         int contentLength = -1;
         if (len == Reader.SIGN_NULL) return null;
         if (len == Reader.SIGN_NOLENBUTBYTES) {