diff --git a/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/bean/ecommerce/PartnerTransactionsRequest.java b/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/bean/ecommerce/PartnerTransactionsRequest.java
index 5fbc02a776bcb974228cb12242053c2b4a727f4e..d29e32ff6c62ed43d17a51d4fa55115f59cc00bd 100644
--- a/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/bean/ecommerce/PartnerTransactionsRequest.java
+++ b/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/bean/ecommerce/PartnerTransactionsRequest.java
@@ -36,9 +36,8 @@ public class PartnerTransactionsRequest implements Serializable {
    *  示例值：wx8888888888888888
    * </pre>
    */
-  @SerializedName(value = "sp_appid")
+  @SerializedName("sp_appid")
   private String spAppid;
-
   /**
    * <pre>
    * 字段名：服务商户号
@@ -50,9 +49,8 @@ public class PartnerTransactionsRequest implements Serializable {
    *  示例值：1230000109
    * </pre>
    */
-  @SerializedName(value = "sp_mchid")
+  @SerializedName("sp_mchid")
   private String spMchid;
-
   /**
    * <pre>
    * 字段名：子商户公众号ID
@@ -64,7 +62,7 @@ public class PartnerTransactionsRequest implements Serializable {
    *  示例值：wxd678efh567hg6999
    * </pre>
    */
-  @SerializedName(value = "sub_appid")
+  @SerializedName("sub_appid")
   private String subAppid;
   /**
    * <pre>
@@ -77,9 +75,8 @@ public class PartnerTransactionsRequest implements Serializable {
    *  示例值：1900000109
    * </pre>
    */
-  @SerializedName(value = "sub_mchid")
+  @SerializedName("sub_mchid")
   private String subMchid;
-
   /**
    * <pre>
    * 字段名：商品描述
@@ -91,9 +88,8 @@ public class PartnerTransactionsRequest implements Serializable {
    *  示例值：Image形象店-深圳腾大-QQ公仔
    * </pre>
    */
-  @SerializedName(value = "description")
+  @SerializedName("description")
   private String description;
-
   /**
    * <pre>
    * 字段名：商户订单号
@@ -106,9 +102,8 @@ public class PartnerTransactionsRequest implements Serializable {
    *  示例值：1217752501201407033233368018
    * </pre>
    */
-  @SerializedName(value = "out_trade_no")
+  @SerializedName("out_trade_no")
   private String outTradeNo;
-
   /**
    * <pre>
    * 字段名：交易结束时间
@@ -120,9 +115,8 @@ public class PartnerTransactionsRequest implements Serializable {
    *  示例值：2019-12-31T15:59:60+08:00
    * </pre>
    */
-  @SerializedName(value = "time_expire")
+  @SerializedName("time_expire")
   private String timeExpire;
-
   /**
    * <pre>
    * 字段名：附加数据
@@ -134,9 +128,8 @@ public class PartnerTransactionsRequest implements Serializable {
    *  示例值：自定义数据
    * </pre>
    */
-  @SerializedName(value = "attach")
+  @SerializedName("attach")
   private String attach;
-
   /**
    * <pre>
    * 字段名：通知地址
@@ -148,9 +141,8 @@ public class PartnerTransactionsRequest implements Serializable {
    *  示例值：https://www.weixin.qq.com/wxpay/pay.php
    * </pre>
    */
-  @SerializedName(value = "notify_url")
+  @SerializedName("notify_url")
   private String notifyUrl;
-
   /**
    * <pre>
    * 字段名：订单优惠标记
@@ -162,9 +154,19 @@ public class PartnerTransactionsRequest implements Serializable {
    *  示例值：WXG
    * </pre>
    */
-  @SerializedName(value = "goods_tag")
+  @SerializedName("goods_tag")
   private String goodsTag;
-
+  /**
+   * <pre>
+   * 字段名：电子发票入口开放标识
+   * 变量名：support_fapiao
+   * 是否必填：否
+   * 类型：boolean
+   * 描述：传入true时，支付成功消息和支付详情页将出现开票入口。需要在微信支付商户平台或微信公众平台开通电子发票功能，传此字段才可生效。
+   * </pre>
+   */
+  @SerializedName("support_fapiao")
+  private Boolean supportFapiao;
   /**
    * <pre>
    * 字段名：+结算信息
@@ -174,9 +176,8 @@ public class PartnerTransactionsRequest implements Serializable {
    * 描述：结算信息
    * </pre>
    */
-  @SerializedName(value = "settle_info")
+  @SerializedName("settle_info")
   private SettleInfo settleInfo;
-
   /**
    * <pre>
    * 字段名：订单金额
@@ -187,9 +188,8 @@ public class PartnerTransactionsRequest implements Serializable {
    *  订单金额信息
    * </pre>
    */
-  @SerializedName(value = "amount")
+  @SerializedName("amount")
   private Amount amount;
-
   /**
    * <pre>
    * 字段名：优惠功能
@@ -200,9 +200,8 @@ public class PartnerTransactionsRequest implements Serializable {
    *  优惠功能
    * </pre>
    */
-  @SerializedName(value = "detail")
+  @SerializedName("detail")
   private Discount detail;
-
   /**
    * <pre>
    * 字段名：支付者
@@ -213,9 +212,8 @@ public class PartnerTransactionsRequest implements Serializable {
    *  支付者信息
    * </pre>
    */
-  @SerializedName(value = "payer")
+  @SerializedName("payer")
   private Payer payer;
-
   /**
    * <pre>
    * 字段名：场景信息
@@ -226,7 +224,7 @@ public class PartnerTransactionsRequest implements Serializable {
    *  支付场景描述
    * </pre>
    */
-  @SerializedName(value = "scene_info")
+  @SerializedName("scene_info")
   private SceneInfo sceneInfo;
 
   @Data
@@ -247,9 +245,8 @@ public class PartnerTransactionsRequest implements Serializable {
      *  示例值：608800
      * </pre>
      */
-    @SerializedName(value = "cost_price")
+    @SerializedName("cost_price")
     private Integer costPrice;
-
     /**
      * <pre>
      * 字段名：商品小票ID
@@ -261,9 +258,8 @@ public class PartnerTransactionsRequest implements Serializable {
      *  示例值：微信123
      * </pre>
      */
-    @SerializedName(value = "invoice_id")
+    @SerializedName("invoice_id")
     private String invoiceId;
-
     /**
      * <pre>
      * 字段名：单品列表
@@ -275,7 +271,7 @@ public class PartnerTransactionsRequest implements Serializable {
      *  条目个数限制：【1，undefined】
      * </pre>
      */
-    @SerializedName(value = "goods_detail")
+    @SerializedName("goods_detail")
     private List<GoodsDetail> goodsDetails;
   }
 
@@ -296,9 +292,8 @@ public class PartnerTransactionsRequest implements Serializable {
      *  示例值：100
      * </pre>
      */
-    @SerializedName(value = "total")
+    @SerializedName("total")
     private Integer total;
-
     /**
      * <pre>
      * 字段名：币类型
@@ -310,9 +305,8 @@ public class PartnerTransactionsRequest implements Serializable {
      *  示例值：CNY
      * </pre>
      */
-    @SerializedName(value = "currency")
+    @SerializedName("currency")
     private String currency;
-
   }
 
   @Data
@@ -332,9 +326,8 @@ public class PartnerTransactionsRequest implements Serializable {
      *  示例值：oUpF8uMuAJO_M2pxb1Q9zNjWeS6o
      * </pre>
      */
-    @SerializedName(value = "sp_openid")
+    @SerializedName("sp_openid")
     private String spOpenid;
-
     /**
      * <pre>
      * 字段名：用户子标识
@@ -346,9 +339,8 @@ public class PartnerTransactionsRequest implements Serializable {
      *  示例值：oUpF8uMuAJO_M2pxb1Q9zNjWeS6o
      * </pre>
      */
-    @SerializedName(value = "sub_openid")
+    @SerializedName("sub_openid")
     private String subOpenid;
-
   }
 
   @Data
@@ -369,9 +361,8 @@ public class PartnerTransactionsRequest implements Serializable {
      *  示例值：true
      * </pre>
      */
-    @SerializedName(value = "profit_sharing")
+    @SerializedName("profit_sharing")
     private Boolean profitSharing;
-
     /**
      * <pre>
      * 字段名：补差金额
@@ -384,9 +375,8 @@ public class PartnerTransactionsRequest implements Serializable {
      *  示例值：10
      * </pre>
      */
-    @SerializedName(value = "subsidy_amount")
+    @SerializedName("subsidy_amount")
     private BigDecimal subsidyAmount;
-
   }
 
   @Data
@@ -405,9 +395,8 @@ public class PartnerTransactionsRequest implements Serializable {
      * 示例值：商品编码
      * </pre>
      */
-    @SerializedName(value = "merchant_goods_id")
+    @SerializedName("merchant_goods_id")
     private String merchantGoodsId;
-
     /**
      * <pre>
      * 字段名：微信侧商品编码
@@ -419,9 +408,8 @@ public class PartnerTransactionsRequest implements Serializable {
      * 示例值：1001
      * </pre>
      */
-    @SerializedName(value = "wechatpay_goods_id")
+    @SerializedName("wechatpay_goods_id")
     private String wechatpayGoodsId;
-
     /**
      * <pre>
      * 字段名：商品名称
@@ -433,9 +421,8 @@ public class PartnerTransactionsRequest implements Serializable {
      * 示例值：iPhoneX 256G
      * </pre>
      */
-    @SerializedName(value = "goods_name")
+    @SerializedName("goods_name")
     private String goodsName;
-
     /**
      * <pre>
      * 字段名：商品数量
@@ -447,9 +434,8 @@ public class PartnerTransactionsRequest implements Serializable {
      * 示例值：1
      * </pre>
      */
-    @SerializedName(value = "quantity")
+    @SerializedName("quantity")
     private Integer quantity;
-
     /**
      * <pre>
      * 字段名：商品单价
@@ -461,7 +447,7 @@ public class PartnerTransactionsRequest implements Serializable {
      * 示例值：828800
      * </pre>
      */
-    @SerializedName(value = "unit_price")
+    @SerializedName("unit_price")
     private Integer unitPrice;
   }
 
@@ -482,9 +468,8 @@ public class PartnerTransactionsRequest implements Serializable {
      *  示例值：POS1:1
      * </pre>
      */
-    @SerializedName(value = "device_id")
+    @SerializedName("device_id")
     private String deviceId;
-
     /**
      * <pre>
      * 字段名：用户终端IP
@@ -497,9 +482,8 @@ public class PartnerTransactionsRequest implements Serializable {
      *  示例值：14.17.22.32
      * </pre>
      */
-    @SerializedName(value = "payer_client_ip")
+    @SerializedName("payer_client_ip")
     private String payerClientIp;
-
     /**
      * <pre>
      * 字段名：H5场景信息
@@ -510,9 +494,8 @@ public class PartnerTransactionsRequest implements Serializable {
      *  H5场景信息
      * </pre>
      */
-    @SerializedName(value = "h5_info")
+    @SerializedName("h5_info")
     private H5Info h5Info;
-
     /**
      * <pre>
      * 字段名：商户门店信息
@@ -523,16 +506,14 @@ public class PartnerTransactionsRequest implements Serializable {
      *  商户门店信息
      * </pre>
      */
-    @SerializedName(value = "store_info")
+    @SerializedName("store_info")
     private StoreInfo storeInfo;
-
   }
 
   @Data
   @NoArgsConstructor
   public static class H5Info implements Serializable {
     private static final long serialVersionUID = -6865738707329486532L;
-
     /**
      * <pre>
      * 字段名：场景类型
@@ -547,9 +528,8 @@ public class PartnerTransactionsRequest implements Serializable {
      *  示例值：iOS
      * </pre>
      */
-    @SerializedName(value = "type")
+    @SerializedName("type")
     private String type;
-
     /**
      * <pre>
      * 字段名：应用名称
@@ -561,9 +541,8 @@ public class PartnerTransactionsRequest implements Serializable {
      *  示例值：王者荣耀
      * </pre>
      */
-    @SerializedName(value = "app_name")
+    @SerializedName("app_name")
     private String appName;
-
     /**
      * <pre>
      * 字段名：网站URL
@@ -575,9 +554,8 @@ public class PartnerTransactionsRequest implements Serializable {
      *  示例值：https://pay.qq.com
      * </pre>
      */
-    @SerializedName(value = "app_url")
+    @SerializedName("app_url")
     private String appUrl;
-
     /**
      * <pre>
      * 字段名：iOS平台BundleID
@@ -589,9 +567,8 @@ public class PartnerTransactionsRequest implements Serializable {
      *  示例值：com.tencent.wzryiOS
      * </pre>
      */
-    @SerializedName(value = "bundle_id")
+    @SerializedName("bundle_id")
     private String bundleId;
-
     /**
      * <pre>
      * 字段名：Android平台PackageName
@@ -603,9 +580,8 @@ public class PartnerTransactionsRequest implements Serializable {
      *  示例值：com.tencent.tmgp.sgame
      * </pre>
      */
-    @SerializedName(value = "package_name")
+    @SerializedName("package_name")
     private String packageName;
-
   }
 
   @Data
@@ -624,9 +600,8 @@ public class PartnerTransactionsRequest implements Serializable {
      * 示例值：0001
      * </pre>
      */
-    @SerializedName(value = "id")
+    @SerializedName("id")
     private String id;
-
     /**
      * <pre>
      * 字段名：门店名称
@@ -638,9 +613,8 @@ public class PartnerTransactionsRequest implements Serializable {
      * 示例值：腾讯大厦分店
      * </pre>
      */
-    @SerializedName(value = "name")
+    @SerializedName("name")
     private String name;
-
     /**
      * <pre>
      * 字段名：地区编码
@@ -652,9 +626,8 @@ public class PartnerTransactionsRequest implements Serializable {
      * 示例值：440305
      * </pre>
      */
-    @SerializedName(value = "area_code")
+    @SerializedName("area_code")
     private String areaCode;
-
     /**
      * <pre>
      * 字段名：详细地址
@@ -666,8 +639,7 @@ public class PartnerTransactionsRequest implements Serializable {
      * 示例值：广东省深圳市南山区科技中一道10000号
      * </pre>
      */
-    @SerializedName(value = "address")
+    @SerializedName("address")
     private String address;
-
   }
 }
diff --git a/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/bean/request/WxPayUnifiedOrderV3Request.java b/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/bean/request/WxPayUnifiedOrderV3Request.java
index 98b46e1154b3ac722dea2c58719f5561b3e9da77..dad8a0412d2453079e9630faf1820e010ea62b16 100644
--- a/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/bean/request/WxPayUnifiedOrderV3Request.java
+++ b/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/bean/request/WxPayUnifiedOrderV3Request.java
@@ -130,6 +130,17 @@ public class WxPayUnifiedOrderV3Request implements Serializable {
    */
   @SerializedName(value = "goods_tag")
   private String goodsTag;
+  /**
+   * <pre>
+   * 字段名：电子发票入口开放标识
+   * 变量名：support_fapiao
+   * 是否必填：否
+   * 类型：boolean
+   * 描述：传入true时，支付成功消息和支付详情页将出现开票入口。需要在微信支付商户平台或微信公众平台开通电子发票功能，传此字段才可生效。
+   * </pre>
+   */
+  @SerializedName(value = "support_fapiao")
+  private Boolean supportFapiao;
   /**
    * <pre>
    * 字段名：订单金额