学费查询接口机上balance

mec-student/src/main/java/com/ym/mec/student/controller/MusicGroupController.java

@@ -162,6 +162,7 @@ public class MusicGroupController extends BaseController {
         model.put("amount", amount);
         model.put("nextPaymentDate", musicGroupStudentFee.getNextPaymentDate());
         model.put("musicGroupSubjectPlan", musicGroupSubjectPlan);
+        model.put("balance",studentRegistration.getBalance());
 
         return succeed(model);
     }