获得专利附图的guid

src/main/java/com/example/fms/service/SftpService.java

@@ -72,6 +72,7 @@ public class SftpService {
         config.put("StrictHostKeyChecking", "no"); // 不验证 HostKey
         session.setConfig(config);
         try {
+            session.connect(60000);
         } catch (Exception e) {
             if (session.isConnected())
                 session.disconnect();