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 5277099a..97a3f847 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
@@ -994,9 +994,12 @@ public class StpLogic {
 		if(loginId == null) {
 			return defaultValue;
 		}
-
-		// 3、不为 null，则开始尝试类型转换
-		return (T)SaFoxUtil.getValueByType(loginId, defaultValue.getClass());
+        // 3、不为 null，则开始尝试类型转换
+        if (defaultValue != null) {
+            return (T) SaFoxUtil.getValueByType(loginId, defaultValue.getClass());
+        } else {
+            return (T) SaFoxUtil.getValueByType(loginId, Object.class);
+        }
  	}
  	
  	/**