.

apq-pc-client/src/main/java/com/priusis/client/service/core/MqttServiceImpl.java

@@ -356,7 +356,8 @@ public class MqttServiceImpl implements MqttService, MqttHandler, MqttClientCall
     private void onRpcCommand(String message) {
         JsonNode payload = fromString(message);
         MqttRpcDataMessage mqttRpcDataMessage = MqttRpcDataMessage.builder()
-                .method(payload.get("method").asText()).params(payload.get("params").asText()).build();
+                .method(payload.get("method").asText())
+                .params(Optional.ofNullable(payload.get("params")).map(JsonNode::asText).orElse(null)).build();
 
 
         // 存储rpc下发的数据