订单折扣问题

付款金额0的问题

cash-common/cash-common-api-config/src/main/java/com/czg/exception/CzgControllerAdvice.java

@@ -95,6 +95,15 @@ public class CzgControllerAdvice {
         return CzgResult.failure(ex.getCode(), ex.getMsg());
     }
 
+    /**
+     * 支付成功
+     * 支付金额为零的统一处理
+     */
+    @ExceptionHandler(PaySuccessException.class)
+    public CzgResult<Object> handlePaySuccessException() {
+        return CzgResult.success();
+    }
+
     /**
      * 处理Hutool的断言抛出异常
      */

cash-common/cash-common-service/src/main/java/com/czg/order/dto/CheckOrderPay.java

@@ -9,6 +9,7 @@ import lombok.NoArgsConstructor;
 
 import java.io.Serializable;
 import java.math.BigDecimal;
+import java.math.RoundingMode;
 import java.util.List;
 
 /**
@@ -93,7 +94,10 @@ public class CheckOrderPay implements Serializable {
     }
 
     public BigDecimal getDiscountRatio() {
-        return discountRatio == null ? BigDecimal.ONE : discountRatio;
+        if (discountRatio == null) {
+            return BigDecimal.ZERO;
+        }
+        return discountRatio.setScale(2, RoundingMode.UP);
     }
 
     public BigDecimal getFullCouponDiscountAmount() {

cash-common/cash-common-tools/src/main/java/com/czg/exception/CzgException.java

@@ -1,5 +1,3 @@
-
-
 package com.czg.exception;
 
 import com.czg.resp.CzgRespCode;

cash-common/cash-common-tools/src/main/java/com/czg/exception/PaySuccessException.java

@@ -0,0 +1,16 @@
+package com.czg.exception;
+
+
+import java.io.Serial;
+
+/**
+ * 自定义异常
+ *
+ * @author admin admin@cashier.com
+ * @since 1.0.0
+ */
+public class PaySuccessException extends RuntimeException {
+	@Serial
+	private static final long serialVersionUID = 1L;
+
+}