diff --git a/taoyao-server/src/test/java/com/acgist/taoyao/signal/SignalTest.java b/taoyao-server/src/test/java/com/acgist/taoyao/signal/SignalTest.java
new file mode 100644
index 0000000..4ed4042
--- /dev/null
+++ b/taoyao-server/src/test/java/com/acgist/taoyao/signal/SignalTest.java
@@ -0,0 +1,26 @@
+package com.acgist.taoyao.signal;
+
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+
+import java.net.http.WebSocket;
+
+import org.junit.jupiter.api.Test;
+
+import com.acgist.taoyao.main.TaoyaoApplication;
+import com.acgist.taoyao.test.annotation.TaoyaoTest;
+
+@TaoyaoTest(classes = TaoyaoApplication.class)
+class SignalTest {
+
+	@Test
+	void testSignal() throws InterruptedException {
+		final WebSocket clientA = WebSocketClient.build("wss://localhost:8888/websocket.signal", "clientA");
+		final WebSocket clientB = WebSocketClient.build("wss://localhost:8888/websocket.signal", "clientB");
+		clientA.sendText("""
+			{"header":{"pid":1000,"v":"1.0.0","id":"1","sn":"clientA"},"body":{}}
+			""", true).join();
+		assertNotNull(clientA);
+		assertNotNull(clientB);
+	}
+
+}
diff --git a/taoyao-server/src/test/java/com/acgist/taoyao/signal/WebSocketClient.java b/taoyao-server/src/test/java/com/acgist/taoyao/signal/WebSocketClient.java
new file mode 100644
index 0000000..668405f
--- /dev/null
+++ b/taoyao-server/src/test/java/com/acgist/taoyao/signal/WebSocketClient.java
@@ -0,0 +1,88 @@
+package com.acgist.taoyao.signal;
+
+import java.net.URI;
+import java.net.http.HttpClient;
+import java.net.http.WebSocket;
+import java.net.http.WebSocket.Listener;
+import java.security.KeyManagementException;
+import java.security.NoSuchAlgorithmException;
+import java.security.SecureRandom;
+import java.security.cert.CertificateException;
+import java.security.cert.X509Certificate;
+import java.util.concurrent.CompletionStage;
+
+import javax.net.ssl.SSLContext;
+import javax.net.ssl.TrustManager;
+import javax.net.ssl.X509TrustManager;
+
+import lombok.extern.slf4j.Slf4j;
+
+@Slf4j
+public class WebSocketClient {
+
+	public static final WebSocket build(String uri, String sn) throws InterruptedException {
+		final Object lock = new Object();
+		try {
+			return HttpClient
+				.newBuilder()
+				.sslContext(newSSLContext())
+				.build()
+				.newWebSocketBuilder()
+				.buildAsync(URI.create(uri), new Listener() {
+					@Override
+					public void onOpen(WebSocket webSocket) {
+						webSocket.sendText(String.format("""
+							{"header":{"pid":2000,"v":"1.0.0","id":"1","sn":"%s"},"body":{"username":"taoyao","password":"taoyao"}}
+						""", sn), true);
+						Listener.super.onOpen(webSocket);
+					}
+					@Override
+					public CompletionStage<?> onText(WebSocket webSocket, CharSequence data, boolean last) {
+						synchronized (lock) {
+							lock.notifyAll();
+						}
+						log.info("收到WebSocket消息：{}", data);
+						return Listener.super.onText(webSocket, data, last);
+					}
+				})
+				.join();
+		} finally {
+			synchronized (lock) {
+				lock.wait(1000);
+			}
+		}
+	}
+	
+	private static final SSLContext newSSLContext() {
+		SSLContext sslContext = null;
+		try {
+			// SSL协议：SSL、SSLv2、SSLv3、TLS、TLSv1、TLSv1.1、TLSv1.2、TLSv1.3
+			sslContext = SSLContext.getInstance("TLSv1.2");
+			sslContext.init(null, TRUST_ALL_CERT_MANAGER, new SecureRandom());
+		} catch (KeyManagementException | NoSuchAlgorithmException e) {
+			log.error("新建SSLContext异常", e);
+			try {
+				sslContext = SSLContext.getDefault();
+			} catch (NoSuchAlgorithmException ex) {
+				log.error("新建默认SSLContext异常", ex);
+			}
+		}
+		return sslContext;
+	}
+	
+	private static final TrustManager[] TRUST_ALL_CERT_MANAGER = new TrustManager[] {
+		new X509TrustManager() {
+			@Override
+			public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {
+			}
+			@Override
+			public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {
+			}
+			@Override
+			public X509Certificate[] getAcceptedIssuers() {
+				return null;
+			}
+		}
+	};
+	
+}
diff --git a/taoyao-signal/README.md b/taoyao-signal/README.md
index 5f75b05..2c381c3 100644
--- a/taoyao-signal/README.md
+++ b/taoyao-signal/README.md
@@ -41,7 +41,7 @@
 
 #### 消息流程：终端->服务端+)终端
 
-全员广播关闭服务信令，然后关闭信令服务。
+全员广播[关闭服务信令](#关闭服务信令1000)，然后关闭信令服务。
 
 ### 执行命令信令（1001）
 
@@ -60,7 +60,7 @@
 
 #### 消息流程：终端->服务端->终端
 
-在服务端执行终端命令并返回结果
+执行命令同时响应结果
 
 ### 异常信令（1999）
 
diff --git a/taoyao-signal/src/main/java/com/acgist/taoyao/signal/protocol/ProtocolManager.java b/taoyao-signal/src/main/java/com/acgist/taoyao/signal/protocol/ProtocolManager.java
index fa58efe..b54c101 100644
--- a/taoyao-signal/src/main/java/com/acgist/taoyao/signal/protocol/ProtocolManager.java
+++ b/taoyao-signal/src/main/java/com/acgist/taoyao/signal/protocol/ProtocolManager.java
@@ -67,22 +67,27 @@ public class ProtocolManager {
 	 */
 	public void execute(String message, AutoCloseable instance) {
 		log.debug("执行信令消息：{}", message);
+		final ClientSession session = this.clientSessionManager.session(instance);
 		// 验证请求
 		final Message value = JSONUtils.toJava(message, Message.class);
 		if(value == null) {
 			log.warn("消息格式错误（解析失败）：{}", message);
+			session.push(this.errorProtocol.build("消息格式错误（解析失败）"));
 			return;
 		}
 		final Header header = value.getHeader();
 		if(header == null) {
 			log.warn("消息格式错误（没有头部）：{}", message);
+			session.push(this.errorProtocol.build("消息格式错误（没有头部）"));
 			return;
 		}
+		final String v = header.getV();
 		final String id = header.getId();
 		final String sn = header.getSn();
 		final Integer pid = header.getPid();
-		if(id == null || sn == null || pid == null) {
-			log.warn("消息格式错误（id|sn|pid）：{}", message);
+		if(v == null || id == null || sn == null || pid == null) {
+			log.warn("消息格式错误（缺失头部关键参数）：{}", message);
+			session.push(this.errorProtocol.build("消息格式错误（缺失头部关键参数）"));
 			return;
 		}
 		// 设置缓存ID
@@ -91,14 +96,15 @@ public class ProtocolManager {
 		final Protocol protocol = this.protocolMapping.get(pid);
 		if(protocol == null) {
 			log.warn("不支持的信令协议：{}", message);
+			session.push(this.errorProtocol.build("不支持的信令协议"));
 			return;
 		}
-		final ClientSession session = this.clientSessionManager.session(instance);
 		if(protocol instanceof ClientRegisterProtocol) {
 			protocol.execute(sn, value, session);
 		} else if(session.authorized() && sn.equals(session.sn())) {
 			protocol.execute(sn, value, session);
 		} else {
+			log.warn("终端会话没有授权：{}", message);
 			session.push(this.errorProtocol.build(MessageCode.CODE_3401, "终端会话没有授权"));
 		}
 	}
diff --git a/taoyao-signal/src/main/java/com/acgist/taoyao/signal/protocol/platform/ShutdownProtocol.java b/taoyao-signal/src/main/java/com/acgist/taoyao/signal/protocol/platform/ShutdownProtocol.java
index 79165e1..eb6b429 100644
--- a/taoyao-signal/src/main/java/com/acgist/taoyao/signal/protocol/platform/ShutdownProtocol.java
+++ b/taoyao-signal/src/main/java/com/acgist/taoyao/signal/protocol/platform/ShutdownProtocol.java
@@ -30,6 +30,7 @@ public class ShutdownProtocol extends ProtocolAdapter {
 		if(this.context instanceof ConfigurableApplicationContext context) {
 			log.info("关闭信令服务：{}", sn);
 			if(context.isActive()) {
+				// 如果需要完整广播可以设置延时
 				context.close();
 			}
 		} else {