diff --git a/yudao-module-iot/yudao-module-iot-plugin/src/main/java/cn/iocoder/yudao/module/iot/plugin/WelcomePlugin.java b/yudao-module-iot/yudao-module-iot-plugin/src/main/java/cn/iocoder/yudao/module/iot/plugin/WelcomePlugin.java
deleted file mode 100644
index 18b9c1417d..0000000000
--- a/yudao-module-iot/yudao-module-iot-plugin/src/main/java/cn/iocoder/yudao/module/iot/plugin/WelcomePlugin.java
+++ /dev/null
@@ -1,91 +0,0 @@
-/*
- * Copyright (C) 2012-present the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package cn.iocoder.yudao.module.iot.plugin;
-
-import cn.iocoder.yudao.module.iot.api.Greeting;
-import org.apache.commons.lang.StringUtils;
-import org.pf4j.Extension;
-import org.pf4j.Plugin;
-import org.pf4j.PluginWrapper;
-import org.pf4j.RuntimeMode;
-import com.sun.net.httpserver.HttpServer;
-import java.io.IOException;
-import java.io.OutputStream;
-import java.net.InetSocketAddress;
-
-/**
- * 打招呼 测试用例
- */
-public class WelcomePlugin extends Plugin {
-
-    private HttpServer server;
-
-    public WelcomePlugin(PluginWrapper wrapper) {
-        super(wrapper);
-    }
-
-    @Override
-    public void start() {
-        System.out.println("WelcomePlugin.start()");
-        // for testing the development mode
-        if (RuntimeMode.DEVELOPMENT.equals(wrapper.getRuntimeMode())) {
-            System.out.println(StringUtils.upperCase("WelcomePlugin"));
-        }
-        startHttpServer();
-    }
-
-    @Override
-    public void stop() {
-        System.out.println("WelcomePlugin.stop()");
-        stopHttpServer();
-    }
-
-    private void startHttpServer() {
-        try {
-            server = HttpServer.create(new InetSocketAddress(9081), 0);
-            server.createContext("/", exchange -> {
-                String response = "Welcome to PF4J HTTP Server";
-                exchange.sendResponseHeaders(200, response.getBytes().length);
-                OutputStream os = exchange.getResponseBody();
-                os.write(response.getBytes());
-                os.close();
-            });
-            server.setExecutor(null);
-            server.start();
-            System.out.println("HTTP server started on port 9081");
-        } catch (IOException e) {
-            e.printStackTrace();
-        }
-    }
-
-    private void stopHttpServer() {
-        if (server != null) {
-            server.stop(0);
-            System.out.println("HTTP server stopped");
-        }
-    }
-
-    @Extension
-    public static class WelcomeGreeting implements Greeting {
-
-        @Override
-        public String getGreeting() {
-            return "Welcome to PF4J";
-        }
-
-    }
-
-}
\ No newline at end of file