解决排序引起的问题

iot-common/iot-third/src/main/java/com/qiuguo/iot/third/service/NlpService.java

@@ -258,6 +258,9 @@ public class NlpService {
             }
             if(actions.getActions().size() > 1){
                 actions.getActions().sort((a, b) -> {
+                    if(a.getSystemTalkAnswerConfigEntity() == null || b.getSystemTalkAnswerConfigEntity() == null){
+                        return 1;
+                    }
                     return Integer.parseInt(String.valueOf(a.getSystemTalkAnswerConfigEntity().getKeyOrder() - b.getSystemTalkAnswerConfigEntity().getKeyOrder()));
                 });
             }