float的精度足够用了

src/main/java/common/model/base/BaseUser.java

@@ -100,17 +100,17 @@ public abstract class BaseUser<M extends BaseUser<M>> extends Model<M> implement
 		return getInt("integral");
 	}
 	/**
-	 * 余额，单位: 分
+	 * 余额，火花
 	 */
-	public void setBalance(java.lang.Integer balance) {
+	public void setBalance(java.lang.Float balance) {
 		set("balance", balance);
 	}
 	
 	/**
-	 * 余额，单位: 分
+	 * 余额，火花
 	 */
-	public java.lang.Integer getBalance() {
-		return getInt("balance");
+	public java.lang.Float getBalance() {
+		return getFloat("balance");
 	}
 	/**
 	 * 最后登录时间

src/main/java/modules/order/OrderService.java

@@ -15,7 +15,6 @@ import common.utils.http.MyRet;
 import modules.user.UserService;
 import modules.user.UserTeamService;
 
-import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
@@ -31,7 +30,7 @@ public class OrderService {
     }
     
     public MyRet create(long nfttId, long userId, int orderType) {
-        BigDecimal quantity = BigDecimal.ONE;
+        float quantity = 1;
         
         try {
             Db.tx(() -> {
@@ -46,13 +45,15 @@ public class OrderService {
                 if (stock <= 0) {
                     throw new RuntimeException("库存不足");
                 }
+                float unitPrice = item.getFloat("price");
+                float totalPrice = unitPrice * quantity;
 
                 // 判断用户余额并预扣
                 User user = User.dao.findById(userId);
-                if (user.getBalance() < item.getInt("price")) {
-                    throw new RuntimeException("花火余额不足，请充值。需要: " + item.getInt("price") + "，你有：" + user.getBalance());
+                if (user.getBalance() < totalPrice) {
+                    throw new RuntimeException("花火余额不足，请充值。需要: " + totalPrice + "，你有：" + user.getBalance());
                 }
-                user.setBalance(user.getBalance() - item.getInt("price"));
+                user.setBalance(user.getBalance() - totalPrice);
                 if (!user.update()) {
                     throw new RuntimeException("创建信息时，用户信息更新失败 user id: " + user.getId());
                 }
@@ -63,7 +64,6 @@ public class OrderService {
                 // 3. 创建订单
                 Order order = new Order();
                 String orderSn = generateOrderSn();                                         // 生成唯一订单号
-                BigDecimal unit_price = item.getBigDecimal("price");
 
                 order.set("order_sn", orderSn);
                 order.set("user_id", userId);
@@ -72,8 +72,8 @@ public class OrderService {
                 order.set("order_type", orderType);                                         // 订单类型：1=正式购买, 2=预购
                 order.set("quantity", quantity);
                 // ... 获取单价、计算总价 ...
-                order.set("unit_price", unit_price);
-                order.set("total_price", quantity.multiply(unit_price));
+                order.set("unit_price", unitPrice);
+                order.set("total_price", totalPrice);
                 // ... 支付方式 ...
                 order.set("payment_method", 1);
                 // ... 交付状态 ...