修复

src/main/java/com/peanut/modules/book/vo/response/BuyOrderResponseVo.java

@@ -3,6 +3,7 @@ package com.peanut.modules.book.vo.response;
 import lombok.Data;
 
 import java.math.BigDecimal;
+import java.sql.Timestamp;
 import java.util.Date;
 import java.util.List;
 
@@ -74,6 +75,8 @@ public class BuyOrderResponseVo {
      * 创建时间
      */
     private Date createTime;
+
+    private Long timestamp;
     /**
      * 发货时间
      */

src/main/java/com/peanut/modules/book/vo/response/CouponResponseVo.java

@@ -19,4 +19,6 @@ public class CouponResponseVo {
      * 优惠券金额
      */
     Integer couponId;
+
+    BigDecimal couponAmount;
 }