diff --git a/ssjygl-xsx-service/src/main/java/com/cowr/service/ssjygl/order/ordercluster/OrderclusterController.java b/ssjygl-xsx-service/src/main/java/com/cowr/service/ssjygl/order/ordercluster/OrderclusterController.java
index 3f999f7..0f37f1b 100644
--- a/ssjygl-xsx-service/src/main/java/com/cowr/service/ssjygl/order/ordercluster/OrderclusterController.java
+++ b/ssjygl-xsx-service/src/main/java/com/cowr/service/ssjygl/order/ordercluster/OrderclusterController.java
@@ -279,4 +279,10 @@ public class OrderclusterController extends BaseController {
 
         renderJson(OrderclusterSyncService.me.forwardTemp(ordercluster_id, new BigDecimal(total_weight), cutoff_time, trucks, tokenuser));
     }
+
+    public void getMaximumConfiguration(){
+        String unit_price    = get("unit_price");
+        int customer_id=getInt("customer_id");
+        renderJson(OrderclusterSyncService.me.getMaximumConfiguration(customer_id, unit_price));
+    }
 }
diff --git a/ssjygl-xsx-service/src/main/java/com/cowr/service/ssjygl/order/ordercluster/OrderclusterSyncService.java b/ssjygl-xsx-service/src/main/java/com/cowr/service/ssjygl/order/ordercluster/OrderclusterSyncService.java
index bf7d87f..2b77638 100644
--- a/ssjygl-xsx-service/src/main/java/com/cowr/service/ssjygl/order/ordercluster/OrderclusterSyncService.java
+++ b/ssjygl-xsx-service/src/main/java/com/cowr/service/ssjygl/order/ordercluster/OrderclusterSyncService.java
@@ -17,6 +17,7 @@ import com.cowr.ssjygl.customer.supermarketproduct.CustomerSupermarketProductSer
 import com.cowr.ssjygl.modifylog.ModifyLogService;
 import com.cowr.ssjygl.order.ordercluster.OrderclusterService;
 import com.cowr.ssjygl.prepay.prepaycustomer.PrepayCustomerService;
+import com.cowr.ssjygl.prepay.refunddetail.RefundDetailService;
 import com.cowr.ssjygl.supermarket.product.SupermarketProductService;
 import com.cowr.ssjygl.supermarket.receiverdistance.SupermarketReceiverDistanceService;
 import com.jfinal.kit.StrKit;
@@ -1309,4 +1310,27 @@ public class OrderclusterSyncService extends BaseSyncService {
 
         return ret ? Result.success() : Result.failed("操作失败");
     }
+
+    /**
+     *获取最大可购买重量
+     * @param customer_id 客户ID
+     * @param unit_price 单价
+     * @return
+     */
+    public Map getMaximumConfiguration(  int customer_id,String unit_price){
+        Map result=new HashMap();
+        Integer count = Db.queryInt("select count(distinct s.name) from ordercluster t  \n" +
+                " left join supermarket s on s.id = t.supermarket_id \n" +
+                "  where t.customer_id =?", customer_id);
+        result.put("count",count);
+        //当前用户如果只在一个沙场里面买沙，就计算最大可购买重量
+        if(count<=1){
+            PrepayCustomer prepayCustomer = PrepayCustomerService.me.getPrepayCustomer(customer_id);
+            BigDecimal availableBalance = RefundDetailService.me.getAvailableBalance(prepayCustomer.getCustomerId(), prepayCustomer.getSurplus());
+            BigDecimal maximumConfiguration=availableBalance.divide(new BigDecimal(unit_price),2,BigDecimal.ROUND_HALF_UP);
+            result.put("maximumConfiguration",maximumConfiguration);
+        }
+        return result;
+    }
+
 }