diff --git a/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/service/impl/MerchantTransferServiceImpl.java b/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/service/impl/MerchantTransferServiceImpl.java
index 7c8959b0c..8c4568a0f 100644
--- a/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/service/impl/MerchantTransferServiceImpl.java
+++ b/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/service/impl/MerchantTransferServiceImpl.java
@@ -9,6 +9,7 @@ import com.google.gson.Gson;
 import com.google.gson.GsonBuilder;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
+import org.apache.commons.lang3.StringUtils;
 
 /**
  * @author glz
@@ -24,26 +25,30 @@ public class MerchantTransferServiceImpl implements MerchantTransferService {
 
   @Override
   public TransferCreateResult createTransfer(TransferCreateRequest request) throws WxPayException {
-    request.setAppid(this.wxPayService.getConfig().getAppId());
+    if (StringUtils.isEmpty(request.getAppid())) {
+      request.setAppid(this.wxPayService.getConfig().getAppId());
+    }
+
     String url = String.format("%s/v3/transfer/batches", this.wxPayService.getPayBaseUrl());
     RsaCryptoUtil.encryptFields(request, this.wxPayService.getConfig().getVerifier().getValidCertificate());
 
-    String response = wxPayService.postV3WithWechatpaySerial(url,GSON.toJson(request));
+    String response = wxPayService.postV3WithWechatpaySerial(url, GSON.toJson(request));
     return GSON.fromJson(response, TransferCreateResult.class);
   }
 
   @Override
   public BatchesQueryResult queryWxBatches(WxBatchesQueryRequest request) throws WxPayException {
-    String url = String.format("%s/v3/transfer/batches/batch-id/%s?need_query_detail=%b", this.wxPayService.getPayBaseUrl(), request.getBatchId(), request.getNeedQueryDetail());
+    String url = String.format("%s/v3/transfer/batches/batch-id/%s?need_query_detail=%b",
+      this.wxPayService.getPayBaseUrl(), request.getBatchId(), request.getNeedQueryDetail());
 
-    if(request.getOffset()!=null){
-      url = String.format("%s&offset=%d",url,request.getOffset());
+    if (request.getOffset() != null) {
+      url = String.format("%s&offset=%d", url, request.getOffset());
     }
-    if(request.getLimit()!=null){
-      url = String.format("%s&limit=%d",url,request.getLimit());
+    if (request.getLimit() != null) {
+      url = String.format("%s&limit=%d", url, request.getLimit());
     }
-    if(request.getDetailStatus()!=null && request.getDetailStatus().length()!=0){
-      url = String.format("%s&detail_status=%s",url,request.getDetailStatus());
+    if (request.getDetailStatus() != null && request.getDetailStatus().length() != 0) {
+      url = String.format("%s&detail_status=%s", url, request.getDetailStatus());
     }
 
     String response = wxPayService.getV3(url);
@@ -52,23 +57,25 @@ public class MerchantTransferServiceImpl implements MerchantTransferService {
 
   @Override
   public DetailsQueryResult queryWxDetails(WxDetailsQueryRequest request) throws WxPayException {
-    String url = String.format("%s/v3/transfer/batches/batch-id/%s/details/detail-id/%s",this.wxPayService.getPayBaseUrl(),request.getBatchId(),request.getDetailId());
+    String url = String.format("%s/v3/transfer/batches/batch-id/%s/details/detail-id/%s",
+      this.wxPayService.getPayBaseUrl(), request.getBatchId(), request.getDetailId());
     String response = wxPayService.getV3(url);
     return GSON.fromJson(response, DetailsQueryResult.class);
   }
 
   @Override
   public BatchesQueryResult queryMerchantBatches(MerchantBatchesQueryRequest request) throws WxPayException {
-    String url = String.format("%s/v3/transfer/batches/out-batch-no/%s?need_query_detail=%b", this.wxPayService.getPayBaseUrl(), request.getOutBatchNo(),request.getNeedQueryDetail());
+    String url = String.format("%s/v3/transfer/batches/out-batch-no/%s?need_query_detail=%b",
+      this.wxPayService.getPayBaseUrl(), request.getOutBatchNo(), request.getNeedQueryDetail());
 
-    if(request.getOffset()!=null){
-      url = String.format("%s&offset=%d",url,request.getOffset());
+    if (request.getOffset() != null) {
+      url = String.format("%s&offset=%d", url, request.getOffset());
     }
-    if(request.getLimit()!=null){
-      url = String.format("%s&limit=%d",url,request.getLimit());
+    if (request.getLimit() != null) {
+      url = String.format("%s&limit=%d", url, request.getLimit());
     }
-    if(request.getDetailStatus()!=null && request.getDetailStatus().length()!=0){
-      url = String.format("%s&detail_status=%s",url,request.getDetailStatus());
+    if (request.getDetailStatus() != null && request.getDetailStatus().length() != 0) {
+      url = String.format("%s&detail_status=%s", url, request.getDetailStatus());
     }
 
     String response = wxPayService.getV3(url);
@@ -77,38 +84,40 @@ public class MerchantTransferServiceImpl implements MerchantTransferService {
 
   @Override
   public DetailsQueryResult queryMerchantDetails(MerchantDetailsQueryRequest request) throws WxPayException {
-    String url = String.format("%s/v3/transfer/batches/out-batch-no/%s/details/out-detail-no/%s",this.wxPayService.getPayBaseUrl(),request.getOutBatchNo(),request.getOutDetailNo());
+    String url = String.format("%s/v3/transfer/batches/out-batch-no/%s/details/out-detail-no/%s",
+      this.wxPayService.getPayBaseUrl(), request.getOutBatchNo(), request.getOutDetailNo());
     String response = wxPayService.getV3(url);
     return GSON.fromJson(response, DetailsQueryResult.class);
   }
 
   @Override
   public ElectronicBillResult applyElectronicBill(ElectronicBillApplyRequest request) throws WxPayException {
-    String url = String.format("%s/v3/transfer/bill-receipt",this.wxPayService.getPayBaseUrl());
-    String response = wxPayService.postV3(url,GSON.toJson(request));
+    String url = String.format("%s/v3/transfer/bill-receipt", this.wxPayService.getPayBaseUrl());
+    String response = wxPayService.postV3(url, GSON.toJson(request));
     return GSON.fromJson(response, ElectronicBillResult.class);
   }
 
   @Override
   public ElectronicBillResult queryElectronicBill(String outBatchNo) throws WxPayException {
-    String url = String.format("%s/v3/transfer/bill-receipt/%s",this.wxPayService.getPayBaseUrl(),outBatchNo);
+    String url = String.format("%s/v3/transfer/bill-receipt/%s", this.wxPayService.getPayBaseUrl(), outBatchNo);
     String response = wxPayService.getV3(url);
     return GSON.fromJson(response, ElectronicBillResult.class);
   }
 
   @Override
   public DetailElectronicBillResult applyDetailElectronicBill(DetailElectronicBillRequest request) throws WxPayException {
-    String url = String.format("%s/v3/transfer-detail/electronic-receipts",this.wxPayService.getPayBaseUrl());
-    String response = wxPayService.postV3(url,GSON.toJson(request));
+    String url = String.format("%s/v3/transfer-detail/electronic-receipts", this.wxPayService.getPayBaseUrl());
+    String response = wxPayService.postV3(url, GSON.toJson(request));
     return GSON.fromJson(response, DetailElectronicBillResult.class);
   }
 
   @Override
   public DetailElectronicBillResult queryDetailElectronicBill(DetailElectronicBillRequest request) throws WxPayException {
-    String url = String.format("%s/v3/transfer-detail/electronic-receipts?accept_type=%s&out_detail_no=%s", this.wxPayService.getPayBaseUrl(), request.getAcceptType(),request.getOutDetailNo());
+    String url = String.format("%s/v3/transfer-detail/electronic-receipts?accept_type=%s&out_detail_no=%s",
+      this.wxPayService.getPayBaseUrl(), request.getAcceptType(), request.getOutDetailNo());
 
-    if(request.getOutBatchNo()!=null && request.getOutBatchNo().length()!=0){
-      url = String.format("%s&out_batch_no=%s",url,request.getOutBatchNo());
+    if (StringUtils.isNotEmpty(request.getOutBatchNo())) {
+      url = String.format("%s&out_batch_no=%s", url, request.getOutBatchNo());
     }
 
     String response = wxPayService.getV3(url);