fixbug

@@ -66,9 +66,9 @@ public class TradeBillsListBuilder {
                 .map(Object::toString)
                 .switchIfEmpty(Mono.justOrEmpty(item.getId())
                         .map(transferMessageMap::get)
-                        .map(TradeBillsTransferMessage::getOutTradeNo)
-                        .defaultIfEmpty("-"))
-                .block();
+                        .map(TradeBillsTransferMessage::getOutTradeNo))
+                .blockOptional()
+                .orElse("-");
     }
 
     private String buildTimeStr(Integer time) {
@@ -90,9 +90,9 @@ public class TradeBillsListBuilder {
                             .map(TradeBillsTransferMessage::tradeResultMessage)
                             .switchIfEmpty(Mono.justOrEmpty(item.getPayErrorCode())
                                     .map(AlipayBatchTransferErrorEnum::getByCode)
-                                    .map(AlipayBatchTransferErrorEnum::getDesc)
-                                    .defaultIfEmpty(e.getDesc()))
-                            .block();
+                                    .map(AlipayBatchTransferErrorEnum::getDesc))
+                            .blockOptional()
+                            .orElse(e.getDesc());
                     desc.append(failReason);
                 });
         return desc.toString();