diff --git a/source/binary-proto/src/main/java/com/jd/blockchain/binaryproto/BinaryProtocol.java b/source/binary-proto/src/main/java/com/jd/blockchain/binaryproto/BinaryProtocol.java
index 3e4a691a..ecaee503 100644
--- a/source/binary-proto/src/main/java/com/jd/blockchain/binaryproto/BinaryProtocol.java
+++ b/source/binary-proto/src/main/java/com/jd/blockchain/binaryproto/BinaryProtocol.java
@@ -11,7 +11,6 @@ import com.jd.blockchain.utils.io.BytesSlice;
 import com.jd.blockchain.utils.io.BytesUtils;
 
 public class BinaryProtocol {
-	
 
 	public static void encode(Object data, Class<?> contractType, OutputStream out) {
 		DataContractEncoder encoder = DataContractContext.resolve(contractType);
@@ -33,8 +32,6 @@ public class BinaryProtocol {
 		byte[] bytes = BytesUtils.copyToBytes(in);
 		return decode(bytes);
 	}
-	
-	
 
 	public static <T> T decode(byte[] dataSegment) {
 		BytesSlice bytes = new BytesSlice(dataSegment, 0, dataSegment.length);
@@ -49,27 +46,32 @@ public class BinaryProtocol {
 		return encoder.decode(bytes.getInputStream());
 	}
 
-	
-	
-	public static <T> T decodeAs(byte[] dataSegment, Class<T> contractType) {
-		return decodeAs(dataSegment, contractType, true);
+	public static <T> T decode(byte[] dataSegment, Class<T> contractType) {
+		return decode(dataSegment, contractType, true);
 	}
-	
-	public static <T> T decodeAs(byte[] dataSegment, Class<T> contractType, boolean autoRegister) {
+
+	public static <T> T decode(byte[] dataSegment, Class<T> contractType, boolean autoRegister) {
 		DataContractEncoder encoder = DataContractContext.ENCODER_LOOKUP.lookup(contractType);
 		if (encoder == null) {
 			if (autoRegister) {
 				encoder = DataContractContext.resolve(contractType);
-			}else {
+			} else {
 				throw new DataContractException("Contract type is not registered! --" + contractType.toString());
 			}
 		}
 		BytesSlice bytes = new BytesSlice(dataSegment, 0, dataSegment.length);
 		return encoder.decode(bytes.getInputStream());
 	}
-	
-	
-	
-	
+
+
+	@Deprecated
+	public static <T> T decodeAs(byte[] dataSegment, Class<T> contractType) {
+		return decode(dataSegment, contractType, true);
+	}
+
+	@Deprecated
+	public static <T> T decodeAs(byte[] dataSegment, Class<T> contractType, boolean autoRegister) {
+		return decode(dataSegment, contractType, autoRegister);
+	}
 
 }
diff --git a/source/sdk/sdk-samples/src/main/java/com/jd/blockchain/sdk/samples/SDKDemo_Tx_Persistance.java b/source/sdk/sdk-samples/src/main/java/com/jd/blockchain/sdk/samples/SDKDemo_Tx_Persistance.java
index 75288f47..c564a306 100644
--- a/source/sdk/sdk-samples/src/main/java/com/jd/blockchain/sdk/samples/SDKDemo_Tx_Persistance.java
+++ b/source/sdk/sdk-samples/src/main/java/com/jd/blockchain/sdk/samples/SDKDemo_Tx_Persistance.java
@@ -84,7 +84,7 @@ public class SDKDemo_Tx_Persistance {
 		byte[] txContentBytes = BinaryProtocol.encode(prepTx.getTransactionContent(), TransactionContent.class);
 		
 		// 反序列化交易内容；
-		TransactionContent txContent = BinaryProtocol.decodeAs(txContentBytes, TransactionContent.class);
+		TransactionContent txContent = BinaryProtocol.decode(txContentBytes, TransactionContent.class);
 		
 		// 对交易内容签名；
 		DigitalSignature signature1 = SignatureUtils.sign(txContent, keyPair1);