学生端增加获取分部列表

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

@@ -154,7 +154,7 @@ public class StudentOrderController extends BaseController {
     public Object executePayment(BigDecimal amount, String orderNo, String payChannel, String notifyUrl, String returnUrl, String orderSubject, String orderBody, String sign, String code, String platform) throws Exception {
         Map<String, Object> signParams = new LinkedHashMap<>();
         signParams.put("appId", ConfigInit.appId);
-        signParams.put("amount", amount);
+        signParams.put("amount", amount.setScale(2,BigDecimal.ROUND_HALF_UP));
         signParams.put("orderNo", orderNo);
         signParams.put("notifyUrl", notifyUrl);
         signParams.put("returnUrl", returnUrl);