diff --git a/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/service/EcommerceService.java b/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/service/EcommerceService.java
index 3910655a8..67038a889 100644
--- a/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/service/EcommerceService.java
+++ b/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/service/EcommerceService.java
@@ -54,6 +54,19 @@ public interface EcommerceService {
    */
   ApplymentsStatusResult queryApplyStatusByOutRequestNo(String outRequestNo) throws WxPayException;
 
+  /**
+   * <pre>
+   * 合单支付API(APP支付、JSAPI支付、H5支付、NATIVE支付).
+   * 请求URL：https://api.mch.weixin.qq.com/v3/combine-transactions/jsapi
+   * 文档地址: https://pay.weixin.qq.com/wiki/doc/apiv3/wxpay/pages/e-combine.shtml
+   * </pre>
+   *
+   * @param tradeType 支付方式
+   * @param request 请求对象
+   * @return 微信合单支付返回
+   */
+  TransactionsResult combine(TradeTypeEnum tradeType, CombineTransactionsRequest request) throws WxPayException;
+
   /**
    * <pre>
    * 合单支付API(APP支付、JSAPI支付、H5支付、NATIVE支付).
@@ -79,6 +92,18 @@ public interface EcommerceService {
    */
   CombineTransactionsNotifyResult parseCombineNotifyResult(String notifyData, SignatureHeader header) throws WxPayException;
 
+  /**
+   *  <pre>
+   *  服务商模式普通支付API(APP支付、JSAPI支付、H5支付、NATIVE支付).
+   *  请求URL：https://api.mch.weixin.qq.com/v3/pay/partner/transactions/jsapi
+   *  文档地址: https://pay.weixin.qq.com/wiki/doc/apiv3/wxpay/pages/transactions_sl.shtml
+   *  </pre>
+   * @param tradeType 支付方式
+   * @param request 请求对象
+   * @return 调起支付需要的参数
+   */
+  TransactionsResult partner(TradeTypeEnum tradeType, PartnerTransactionsRequest request) throws WxPayException;
+
   /**
    *  <pre>
    *  服务商模式普通支付API(APP支付、JSAPI支付、H5支付、NATIVE支付).
diff --git a/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/service/impl/EcommerceServiceImpl.java b/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/service/impl/EcommerceServiceImpl.java
index cf4f42ed6..4dc535b0f 100644
--- a/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/service/impl/EcommerceServiceImpl.java
+++ b/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/service/impl/EcommerceServiceImpl.java
@@ -46,10 +46,15 @@ public class EcommerceServiceImpl implements EcommerceService {
   }
 
   @Override
-  public <T> T combineTransactions(TradeTypeEnum tradeType, CombineTransactionsRequest request) throws WxPayException {
+  public TransactionsResult combine(TradeTypeEnum tradeType, CombineTransactionsRequest request) throws WxPayException {
     String url = this.payService.getPayBaseUrl() + tradeType.getCombineUrl();
     String response = this.payService.postV3(url, GSON.toJson(request));
-    TransactionsResult result = GSON.fromJson(response, TransactionsResult.class);
+    return GSON.fromJson(response, TransactionsResult.class);
+  }
+
+  @Override
+  public <T> T combineTransactions(TradeTypeEnum tradeType, CombineTransactionsRequest request) throws WxPayException {
+    TransactionsResult result = this.combine(tradeType, request);
     return result.getPayInfo(tradeType, request.getCombineAppid(),
       request.getCombineMchid(), payService.getConfig().getPrivateKey());
   }
@@ -76,10 +81,15 @@ public class EcommerceServiceImpl implements EcommerceService {
   }
 
   @Override
-  public <T> T partnerTransactions(TradeTypeEnum tradeType, PartnerTransactionsRequest request) throws WxPayException {
+  public TransactionsResult partner(TradeTypeEnum tradeType, PartnerTransactionsRequest request) throws WxPayException {
     String url = this.payService.getPayBaseUrl() + tradeType.getPartnerUrl();
     String response = this.payService.postV3(url, GSON.toJson(request));
-    TransactionsResult result = GSON.fromJson(response, TransactionsResult.class);
+    return GSON.fromJson(response, TransactionsResult.class);
+  }
+
+  @Override
+  public <T> T partnerTransactions(TradeTypeEnum tradeType, PartnerTransactionsRequest request) throws WxPayException {
+    TransactionsResult result = this.partner(tradeType, request);
     return result.getPayInfo(tradeType, request.getSpAppid(),
       request.getSpMchid(), payService.getConfig().getPrivateKey());
   }