优化服务商模式下下单代码，去掉部分重复代码

weixin-java-pay/src/main/java/com/github/binarywang/wxpay/bean/notify/CombineNotifyResult.java

@@ -250,6 +250,34 @@ public static class SubOrders implements Serializable {
      */
     @SerializedName(value = "out_trade_no")
     private String outTradeNo;
+    /**
+     * <pre>
+     * 字段名：子商户应用ID
+     * 变量名：sub_appid
+     * 是否必填：是
+     * 类型：string[1,32]
+     * 描述：
+     *  子商户申请的应用ID，全局唯一。请求基础下单接口时请注意APPID的应用属性，例如公众号场景下，
+     *  需使用应用属性为公众号的APPID 若sub_openid有传的情况下，
+     *  sub_appid必填，且sub_appid需与sub_openid对应
+     *  示例值：wxd678efh567hg6999
+     * </pre>
+     */
+    @SerializedName(value = "sub_appid")
+    private String subAppid;
+    /**
+     * <pre>
+     * 字段名：二级商户号
+     * 变量名：sub_mchid
+     * 是否必填：是
+     * 类型：string[1,32]
+     * 描述：
+     *  二级商户商户号，由微信支付生成并下发。服务商子商户的商户号，被合单方。直连商户不用传二级商户号。
+     *  示例值：1900000109
+     * </pre>
+     */
+    @SerializedName(value = "sub_mchid")
+    private String subMchid;
     /**
      * <pre>
      * 字段名：订单金额

weixin-java-pay/src/main/java/com/github/binarywang/wxpay/bean/request/CombineTransactionsRequest.java

@@ -240,6 +240,32 @@ public static class SubOrders implements Serializable {
      */
     @SerializedName(value = "out_trade_no")
     private String outTradeNo;
+    /**
+     * <pre>
+     * 字段名：订单优惠标记
+     * 变量名：goods_tag
+     * 是否必填：是
+     * 类型：string[1,32]
+     * 描述：
+     *  订单优惠标记，使用代金券或立减优惠功能时需要的参数，说明详见代金券或立减优惠
+     *  示例值：WXG
+     * </pre>
+     */
+    @SerializedName(value = "goods_tag")
+    private String goodsTag;
+    /**
+     * <pre>
+     * 字段名：二级商户号
+     * 变量名：sub_mchid
+     * 是否必填：是
+     * 类型：string[1,32]
+     * 描述：
+     *  二级商户商户号，由微信支付生成并下发。服务商子商户的商户号，被合单方。直连商户不用传二级商户号。
+     *  示例值：1900000109
+     * </pre>
+     */
+    @SerializedName(value = "sub_mchid")
+    private String subMchid;
     /**
      * <pre>
      * 字段名：商品描述
@@ -264,6 +290,21 @@ public static class SubOrders implements Serializable {
      */
     @SerializedName(value = "settle_info")
     private SettleInfo settleInfo;
+    /**
+     * <pre>
+     * 字段名：子商户应用ID
+     * 变量名：sub_appid
+     * 是否必填：是
+     * 类型：string[1,32]
+     * 描述：
+     *  子商户申请的应用ID，全局唯一。请求基础下单接口时请注意APPID的应用属性，例如公众号场景下，
+     *  需使用应用属性为公众号的APPID 若sub_openid有传的情况下，
+     *  sub_appid必填，且sub_appid需与sub_openid对应
+     *  示例值：wxd678efh567hg6999
+     * </pre>
+     */
+    @SerializedName(value = "sub_appid")
+    private String subAppid;
   }
 
   @Data
@@ -283,6 +324,21 @@ public static class CombinePayerInfo implements Serializable {
      */
     @SerializedName(value = "openid")
     private String openid;
+    /**
+     * <pre>
+     * 字段名：子用户标识
+     * 变量名：sub_openid
+     * 是否必填：是
+     * 类型：string[1,128]
+     * 描述：
+     *  服务商模式下，使用某个子商户的Appid获取的对应用户Openid，
+     *  是用户在该子商户Appid下的唯一标识。openid和sub_openid可以选传其中之一，
+     *  如果选择传sub_openid，则必须传sub_appid。
+     *  示例值：oUpF8uMuAJO_M2pxb1Q9zNjWeS6o
+     * </pre>
+     */
+    @SerializedName(value = "sub_openid")
+    private String subOpenid;
   }
 
   @Data

weixin-java-pay/src/main/java/com/github/binarywang/wxpay/bean/result/WxPayUnifiedOrderV3Result.java

@@ -1,6 +1,5 @@
 package com.github.binarywang.wxpay.bean.result;
 
-import com.github.binarywang.wxpay.bean.result.enums.PartnerTradeTypeEnum;
 import com.github.binarywang.wxpay.bean.result.enums.TradeTypeEnum;
 import com.github.binarywang.wxpay.v3.util.SignUtils;
 import com.google.gson.annotations.SerializedName;
@@ -133,32 +132,4 @@ public <T> T getPayInfo(TradeTypeEnum tradeType, String appId, String mchId, Pri
         throw new WxRuntimeException("不支持的支付类型");
     }
   }
-
-  public <T> T getPartnerPayInfo(PartnerTradeTypeEnum tradeType, String appId, String mchId, PrivateKey privateKey) {
-    String timestamp = String.valueOf(System.currentTimeMillis() / 1000);
-    String nonceStr = SignUtils.genRandomStr();
-    switch (tradeType) {
-      case JSAPI:
-        JsapiResult jsapiResult = new JsapiResult();
-        jsapiResult.setAppId(appId).setTimeStamp(timestamp)
-          .setPackageValue("prepay_id=" + this.prepayId).setNonceStr(nonceStr)
-          //签名类型，默认为RSA，仅支持RSA。
-          .setSignType("RSA").setPaySign(SignUtils.sign(jsapiResult.getSignStr(), privateKey));
-        return (T) jsapiResult;
-      case H5:
-        return (T) this.h5Url;
-      case APP:
-        AppResult appResult = new AppResult();
-        appResult.setAppid(appId).setPrepayId(this.prepayId).setPartnerId(mchId)
-          .setNoncestr(nonceStr).setTimestamp(timestamp)
-          //暂填写固定值Sign=WXPay
-          .setPackageValue("Sign=WXPay")
-          .setSign(SignUtils.sign(appResult.getSignStr(), privateKey));
-        return (T) appResult;
-      case NATIVE:
-        return (T) this.codeUrl;
-      default:
-        throw new WxRuntimeException("不支持的支付类型");
-    }
-  }
 }

weixin-java-pay/src/main/java/com/github/binarywang/wxpay/bean/result/enums/TradeTypeEnum.java

@@ -14,19 +14,19 @@ public enum TradeTypeEnum {
   /**
    * APP
    */
-  APP("/v3/pay/transactions/app", "/v3/combine-transactions/app"),
+  APP("/v3/pay/transactions/app", "/v3/combine-transactions/app", "/v3/pay/partner/transactions/app"),
   /**
    * JSAPI 或 小程序
    */
-  JSAPI("/v3/pay/transactions/jsapi", "/v3/combine-transactions/jsapi"),
+  JSAPI("/v3/pay/transactions/jsapi", "/v3/combine-transactions/jsapi", "/v3/pay/partner/transactions/jsapi"),
   /**
    * NATIVE
    */
-  NATIVE("/v3/pay/transactions/native", "/v3/combine-transactions/native"),
+  NATIVE("/v3/pay/transactions/native", "/v3/combine-transactions/native", "/v3/pay/partner/transactions/native"),
   /**
    * H5
    */
-  H5("/v3/pay/transactions/h5", "/v3/combine-transactions/h5");
+  H5("/v3/pay/transactions/h5", "/v3/combine-transactions/h5", "/v3/pay/partner/transactions/native");
 
   /**
    * 单独下单url
@@ -37,4 +37,9 @@ public enum TradeTypeEnum {
    * 合并下单url
    */
   private final String combineUrl;
+
+  /**
+   * 服务商下单
+   */
+  private final String basePartnerUrl;
 }

weixin-java-pay/src/main/java/com/github/binarywang/wxpay/service/WxPayService.java

@@ -5,14 +5,12 @@
 import com.github.binarywang.wxpay.bean.notify.*;
 import com.github.binarywang.wxpay.bean.request.*;
 import com.github.binarywang.wxpay.bean.result.*;
-import com.github.binarywang.wxpay.bean.result.enums.PartnerTradeTypeEnum;
 import com.github.binarywang.wxpay.bean.result.enums.TradeTypeEnum;
 import com.github.binarywang.wxpay.config.WxPayConfig;
 import com.github.binarywang.wxpay.constant.WxPayConstants;
 import com.github.binarywang.wxpay.exception.WxPayException;
 import org.apache.http.client.methods.HttpPost;
 import org.apache.http.client.methods.HttpRequestBase;
-
 import java.io.File;
 import java.io.InputStream;
 import java.util.Date;
@@ -641,16 +639,17 @@ public interface WxPayService {
    * @return 返回 {@link com.github.binarywang.wxpay.bean.result.WxPayUnifiedOrderV3Result}里的内部类或字段
    * @throws WxPayException the wx pay exception
    */
-  <T> T createPartnerOrderV3(PartnerTradeTypeEnum tradeType, WxPayPartnerUnifiedOrderV3Request request) throws WxPayException;
+  <T> T createPartnerOrderV3(TradeTypeEnum tradeType, WxPayPartnerUnifiedOrderV3Request request) throws WxPayException;
 
   /**
    * 在发起微信支付前，需要调用统一下单接口，获取"预支付交易会话标识"
    *
    * @param tradeType the trade type
    * @param request   请求对象，注意一些参数如spAppid、spMchid等不用设置，方法内会自动从配置对象中获取到（前提是对应配置中已经设置）
    * @return the wx pay unified order result
+   * @throws WxPayException the wx pay exception
    */
-  WxPayUnifiedOrderV3Result unifiedPartnerOrderV3(PartnerTradeTypeEnum tradeType, WxPayPartnerUnifiedOrderV3Request request) throws WxPayException;
+  WxPayUnifiedOrderV3Result unifiedPartnerOrderV3(TradeTypeEnum tradeType, WxPayPartnerUnifiedOrderV3Request request) throws WxPayException;
 
   /**
    * 在发起微信支付前，需要调用统一下单接口，获取"预支付交易会话标识"

weixin-java-pay/src/main/java/com/github/binarywang/wxpay/service/impl/BaseWxPayServiceImpl.java

@@ -10,7 +10,6 @@
 import com.github.binarywang.wxpay.bean.order.WxPayNativeOrderResult;
 import com.github.binarywang.wxpay.bean.request.*;
 import com.github.binarywang.wxpay.bean.result.*;
-import com.github.binarywang.wxpay.bean.result.enums.PartnerTradeTypeEnum;
 import com.github.binarywang.wxpay.bean.result.enums.TradeTypeEnum;
 import com.github.binarywang.wxpay.config.WxPayConfig;
 import com.github.binarywang.wxpay.config.WxPayConfigHolder;
@@ -712,15 +711,15 @@ public <T> T createOrderV3(TradeTypeEnum tradeType, WxPayUnifiedOrderV3Request r
   }
 
   @Override
-  public <T> T createPartnerOrderV3(PartnerTradeTypeEnum tradeType, WxPayPartnerUnifiedOrderV3Request request) throws WxPayException {
+  public <T> T createPartnerOrderV3(TradeTypeEnum tradeType, WxPayPartnerUnifiedOrderV3Request request) throws WxPayException {
     WxPayUnifiedOrderV3Result result = this.unifiedPartnerOrderV3(tradeType, request);
     //获取应用ID
     String appId = StringUtils.isBlank(request.getSubAppid()) ? request.getSpAppid() : request.getSubAppid();
-    return result.getPayInfo(tradeType.getDirectConnTrade(), appId, request.getSubMchId(), this.getConfig().getPrivateKey());
+    return result.getPayInfo(tradeType, appId, request.getSubMchId(), this.getConfig().getPrivateKey());
   }
 
   @Override
-  public WxPayUnifiedOrderV3Result unifiedPartnerOrderV3(PartnerTradeTypeEnum tradeType, WxPayPartnerUnifiedOrderV3Request request) throws WxPayException {
+  public WxPayUnifiedOrderV3Result unifiedPartnerOrderV3(TradeTypeEnum tradeType, WxPayPartnerUnifiedOrderV3Request request) throws WxPayException {
     if (StringUtils.isBlank(request.getSpAppid())) {
       request.setSpAppid(this.getConfig().getAppId());
     }
@@ -741,7 +740,7 @@ public WxPayUnifiedOrderV3Result unifiedPartnerOrderV3(PartnerTradeTypeEnum trad
       request.setSubMchId(this.getConfig().getSubMchId());
     }
 
-    String url = this.getPayBaseUrl() + tradeType.getPartnerUrl();
+    String url = this.getPayBaseUrl() + tradeType.getBasePartnerUrl();
     String response = this.postV3(url, GSON.toJson(request));
     return GSON.fromJson(response, WxPayUnifiedOrderV3Result.class);
   }