payParams 判断变量是否存在

@@ -54,7 +54,7 @@ const Alibank = {
         };
     },
     notify(data, param) {
-        let payParams = JSON.parse(param.payParams);
+        let payParams = param.payParams && JSON.parse(param.payParams) || {};
         let orderCode = parseInt(data.out_trade_no, 10);
         let extraParam = data.extra_common_param && JSON.parse(data.extra_common_param) || {};
         let bankName = payHelpersBank.getList()[extraParam.defaultbank] &&
@@ -82,6 +82,10 @@ const Alibank = {
     checkNotify(data, payParams) {
         let signValue = data.sign;
 
+        if (!payParams || !data) {
+            return false;
+        }
+
         delete data.sign;
         delete data.sign_type;
         delete data.code;