精进product

grademanagement-SpringMVCProject/src/com/ssm/entity/Product.java

@@ -114,4 +114,33 @@ public class Product {
                 ", listDate='" + listDate + '\'' +
                 '}';
     }
+
+    // 计算折扣率
+    public Double getDiscountRate() {
+        if (marketPrice != null && marketPrice > 0 && salesPrice != null) {
+            return (salesPrice / marketPrice) * 10;
+        }
+        return 0.0;
+    }
+
+    // 判断是否有优惠
+    public boolean hasDiscount() {
+        if (marketPrice != null && salesPrice != null) {
+            return salesPrice < marketPrice;
+        }
+        return false;
+    }
+
+    // 获取节省金额
+    public Double getSavedAmount() {
+        if (marketPrice != null && salesPrice != null) {
+            return marketPrice - salesPrice;
+        }
+        return 0.0;
+    }
+
+    // 判断是否为热门商品
+    public boolean isHotProduct() {
+        return "是".equals(isPopular) || "true".equalsIgnoreCase(isPopular) || "1".equals(isPopular);
+    }
 }