.

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

@@ -343,6 +343,10 @@ public class MqttServiceImpl implements MqttService, MqttHandler, MqttClientCall
 
             if ("remote_control".equals(mqttRpcDataMessage.getMethod())) {// 远程控制请求
                 log.info("收到远程控制请求!!!");
+                if (vncServerIsRunning()) {
+                    log.warn("VNC Server 已在运行中，忽略此次请求");
+                    return;
+                }
                 SysConfigUtil.saveProperty("control.request", "1");
                 return;
             }
@@ -359,6 +363,19 @@ public class MqttServiceImpl implements MqttService, MqttHandler, MqttClientCall
         }
     }
 
+    private static boolean vncServerIsRunning() throws IOException {
+        Process process = Runtime.getRuntime().exec("cmd /c sc query uvnc_service");
+        try (BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream(), "GBK"))) {
+            String line;
+            while ((line = reader.readLine()) != null) {
+                line = line.trim();
+                if (line.startsWith("STATE")) return line.endsWith("RUNNING");
+            }
+            process.destroy();
+        }
+        return false;
+    }
+
     private void onGatewayAttributesGet(String message) {
         log.info("Configuration arrived! {}", message);
         JsonNode payload = fromString(message);