diff --git a/sa-token-core/src/main/java/cn/dev33/satoken/stp/StpLogic.java b/sa-token-core/src/main/java/cn/dev33/satoken/stp/StpLogic.java
index 80c69e6a..33ebe5b2 100644
--- a/sa-token-core/src/main/java/cn/dev33/satoken/stp/StpLogic.java
+++ b/sa-token-core/src/main/java/cn/dev33/satoken/stp/StpLogic.java
@@ -145,14 +145,6 @@ public class StpLogic {
 	 */
 	public void setLoginId(Object loginId, String device) {
 		
-		// ------ 0、如果当前会话已经登录上了此LoginId，且登录设备相同，则立即返回 
-		Object loggedId = getLoginIdDefaultNull();
-		if(loggedId != null && loggedId.toString().equals(loginId.toString())) {
-			String loggedDevice = getLoginDevice();
-			if(loggedDevice != null && loggedDevice.equals(device)) {
-				return;
-			}
-		}
 		
 		// ------ 1、获取相应对象  
 		HttpServletRequest request = SaTokenManager.getSaTokenServlet().getRequest();
diff --git a/sa-token-demo-jwt/src/main/java/com/pj/satoken/jwt/SaTokenJwtUtil.java b/sa-token-demo-jwt/src/main/java/com/pj/satoken/jwt/SaTokenJwtUtil.java
index 7677824f..8bf0161b 100644
--- a/sa-token-demo-jwt/src/main/java/com/pj/satoken/jwt/SaTokenJwtUtil.java
+++ b/sa-token-demo-jwt/src/main/java/com/pj/satoken/jwt/SaTokenJwtUtil.java
@@ -27,7 +27,7 @@ import io.jsonwebtoken.SignatureAlgorithm;
 public class SaTokenJwtUtil {
 
 	/**
-	 * 秘钥
+	 * 秘钥 (随便手打几个字母就好了) 
 	 */
 	public static final String BASE64_SECURITY = "79e7c69681b8270162386e6daa53d1dd"; 
 
@@ -102,6 +102,14 @@ public class SaTokenJwtUtil {
 	
     
     static {
+    	
+    	// 判断秘钥
+    	if(BASE64_SECURITY.equals("79e7c69681b8270162386e6daa53d1dd")) {
+    		String warn = "-------------------------------------\n";
+    		warn += "请更换JWT秘钥，不要使用示例默认秘钥\n";
+    		warn += "-------------------------------------";
+    		System.err.println(warn);
+    	}
     
     	// 修改默认实现 
     	StpUtil.stpLogic = new StpLogic("login") {
@@ -207,7 +215,6 @@ public class SaTokenJwtUtil {
     		
     	};
     	
-    	
     }