diff --git a/servers/boe-server-all/src/main/java/com/xboe/module/course/api/CourseWareApi.java b/servers/boe-server-all/src/main/java/com/xboe/module/course/api/CourseWareApi.java
index 79353b3d..959ee0ad 100644
--- a/servers/boe-server-all/src/main/java/com/xboe/module/course/api/CourseWareApi.java
+++ b/servers/boe-server-all/src/main/java/com/xboe/module/course/api/CourseWareApi.java
@@ -130,8 +130,15 @@ public class CourseWareApi extends ApiBaseController {
 		}
 		String userInfo = CacheName.NAME_INFO + ":"+ token;
 		Object o = redisTemplate.opsForValue().get(userInfo);
+		if (o == null) {
+			log.error("从 Redis 获取的值为 null ,", userInfo);
+			return badRequest("token验证错误");
+		}
+		// 将对象转换为字符串
 		String userNoStr = o.toString();
+		// 检查字符串是否为空或空白
 		if (StringUtils.isBlank(userNoStr)) {
+			log.error("从 Redis 获取的值为空或空白,", userInfo);
 			return badRequest("token验证错误");
 		}
 		HashMap bean = JSONUtil.toBean(userNoStr, HashMap.class);