fix: 修正日志提示

src/main/java/com/xydl/cac/iec/IecClient.java

@@ -163,7 +163,6 @@ public class IecClient implements ClientEventListener {
     @Override
     public void associationClosed(IOException e) {
         if (keep) {
-            keep = false;
             this.disableReporting();
             this.disconnect();
             while (retry > 0) {

src/main/java/com/xydl/cac/iec/RealTimeDataService.java

@@ -92,6 +92,7 @@ public class RealTimeDataService {
     private void onlyStop(Integer iedId) {
         IecClient iecClient = StaticVariable.realTimeClientMap.get(iedId);
         if (iecClient != null) {
+            iecClient.keep = false;
             iecClient.disableReporting();
             iecClient.disconnect();
             StaticVariable.realTimeClientMap.remove(iedId);