!12 使用内存缓存

* 后台管理员登录失败次数设置为10次 * 优化代码 * 后台缓存接口新增权限控制 * 移除redis关键字 * Merge branch 'dev' into dev-cache * 优化静态资源访问不存在抛出异常 * 删除redis相关内容 * 移除compose.yml中redis和minio的配置 * changelog * 后台 s3配置 * 后台 s3配置 * 云存储：移除minio;新增阿里云oss,腾讯云cos * 内存缓存替换redis缓存
2025-10-26 22:51:36 +08:00 · 2025-05-10 02:13:24 +00:00
parent 05bad03d69
commit b9f600d3bc
281 changed files with 886 additions and 3397 deletions
--- a/playedu-api/playedu-course/src/main/java/xyz/playedu/course/bus/UserBus.java
+++ b/playedu-api/playedu-course/src/main/java/xyz/playedu/course/bus/UserBus.java
@@ -15,20 +15,18 @@
 */
 package xyz.playedu.course.bus;

+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
 import org.apache.commons.collections4.CollectionUtils;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Component;
-
 import xyz.playedu.common.domain.Department;
 import xyz.playedu.common.service.DepartmentService;
 import xyz.playedu.common.service.UserService;
 import xyz.playedu.common.util.StringUtil;
 import xyz.playedu.course.service.CourseService;

-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.List;
-
 /**
 * @Author 杭州白书科技有限公司
 *
--- a/playedu-api/playedu-course/src/main/java/xyz/playedu/course/caches/CourseCache.java
+++ b/playedu-api/playedu-course/src/main/java/xyz/playedu/course/caches/CourseCache.java
@@ -1,57 +0,0 @@
-/*
- * Copyright (C) 2023 杭州白书科技有限公司
- *
- * 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 xyz.playedu.course.caches;
-
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.stereotype.Component;
-
-import xyz.playedu.common.exception.NotFoundException;
-import xyz.playedu.common.util.RedisUtil;
-import xyz.playedu.course.domain.Course;
-import xyz.playedu.course.service.CourseService;
-
-/**
- * @Author 杭州白书科技有限公司
- *
- * @create 2023/3/20 17:57
- */
-@Component
-public class CourseCache {
-
-    @Autowired private CourseService courseService;
-
-    private static final String keyTemplate = "course:%d";
-
-    private static final int expire = 3600; // s
-
-    public Course findOrFail(Integer id) throws NotFoundException {
-        String keyName = key(id);
-        if (RedisUtil.exists(keyName)) {
-            return (Course) RedisUtil.get(keyName);
-        }
-        Course course = courseService.findOrFail(id);
-        put(course);
-        return course;
-    }
-
-    public void put(Course course) {
-        RedisUtil.set(key(course.getId()), course, expire);
-    }
-
-    private String key(Integer courseId) {
-        return String.format(keyTemplate, courseId);
-    }
-}
--- a/playedu-api/playedu-course/src/main/java/xyz/playedu/course/caches/UserCanSeeCourseCache.java
+++ b/playedu-api/playedu-course/src/main/java/xyz/playedu/course/caches/UserCanSeeCourseCache.java
@@ -15,16 +15,14 @@
 */
 package xyz.playedu.course.caches;

-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.stereotype.Component;
-
-import xyz.playedu.common.exception.ServiceException;
-import xyz.playedu.common.util.RedisUtil;
-import xyz.playedu.common.util.StringUtil;
-import xyz.playedu.course.bus.UserBus;
-
 import java.util.ArrayList;
 import java.util.List;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+import xyz.playedu.common.exception.ServiceException;
+import xyz.playedu.common.util.MemoryCacheUtil;
+import xyz.playedu.common.util.StringUtil;
+import xyz.playedu.course.bus.UserBus;

 /**
 * @Author 杭州白书科技有限公司
@@ -43,8 +41,8 @@ public class UserCanSeeCourseCache {
    public boolean check(Integer userId, Integer courseId, boolean isThrow)
            throws ServiceException {
        boolean result;
-        if (RedisUtil.exists(key(userId, courseId))) {
-            String cacheResult = (String) RedisUtil.get(key(userId, courseId));
+        if (MemoryCacheUtil.exists(key(userId, courseId))) {
+            String cacheResult = (String) MemoryCacheUtil.get(key(userId, courseId));
            result = "1".equals(cacheResult);
        } else {
            result = userBus.canSeeCourse(userId, courseId);
@@ -57,7 +55,7 @@ public class UserCanSeeCourseCache {
    }

    public void put(Integer userId, Integer courseId, boolean result) {
-        RedisUtil.set(key(userId, courseId), result ? "1" : "0", expire);
+        MemoryCacheUtil.set(key(userId, courseId), result ? "1" : "0", expire);
    }

    public void destroy(List<Integer> userIds, Integer courseId) {
@@ -66,7 +64,7 @@ public class UserCanSeeCourseCache {
            for (Integer userId : userIds) {
                keyList.add(key(userId, courseId));
            }
-            RedisUtil.del(keyList.toArray(new String[keyList.size()]));
+            MemoryCacheUtil.del(keyList.toArray(new String[keyList.size()]));
        }
    }

--- a/playedu-api/playedu-course/src/main/java/xyz/playedu/course/caches/UserLastLearnTimeCache.java
+++ b/playedu-api/playedu-course/src/main/java/xyz/playedu/course/caches/UserLastLearnTimeCache.java
@@ -16,8 +16,7 @@
 package xyz.playedu.course.caches;

 import org.springframework.stereotype.Component;
-
-import xyz.playedu.common.util.RedisUtil;
+import xyz.playedu.common.util.MemoryCacheUtil;

 /**
 * @Author 杭州白书科技有限公司
@@ -32,10 +31,10 @@ public class UserLastLearnTimeCache {
    private static final int expire = 9500; // 9.5s

    public Long get(Integer userId) {
-        return (Long) RedisUtil.hGet(groupName, userId + "");
+        return (Long) MemoryCacheUtil.hGet(groupName, userId + "");
    }

    public void put(Integer userId, Long timestamp) {
-        RedisUtil.hSet(groupName, userId + "", timestamp);
+        MemoryCacheUtil.hSet(groupName, userId + "", timestamp);
    }
 }
--- a/playedu-api/playedu-course/src/main/java/xyz/playedu/course/domain/Course.java
+++ b/playedu-api/playedu-course/src/main/java/xyz/playedu/course/domain/Course.java
@@ -21,12 +21,10 @@ import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
 import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonProperty;
-
-import lombok.Data;
-
 import java.io.Serial;
 import java.io.Serializable;
 import java.util.Date;
+import lombok.Data;

 /**
 * @TableName courses
--- a/playedu-api/playedu-course/src/main/java/xyz/playedu/course/domain/CourseAttachment.java
+++ b/playedu-api/playedu-course/src/main/java/xyz/playedu/course/domain/CourseAttachment.java
@@ -21,11 +21,9 @@ import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
 import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonProperty;
-
-import lombok.Data;
-
 import java.io.Serializable;
 import java.util.Date;
+import lombok.Data;

 /**
 * @TableName course_attachment
--- a/playedu-api/playedu-course/src/main/java/xyz/playedu/course/domain/CourseAttachmentDownloadLog.java
+++ b/playedu-api/playedu-course/src/main/java/xyz/playedu/course/domain/CourseAttachmentDownloadLog.java
@@ -20,11 +20,9 @@ import com.baomidou.mybatisplus.annotation.TableField;
 import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
 import com.fasterxml.jackson.annotation.JsonProperty;
-
-import lombok.Data;
-
 import java.io.Serializable;
 import java.util.Date;
+import lombok.Data;

 /**
 * @TableName course_attachment_download_log
--- a/playedu-api/playedu-course/src/main/java/xyz/playedu/course/domain/CourseCategory.java
+++ b/playedu-api/playedu-course/src/main/java/xyz/playedu/course/domain/CourseCategory.java
@@ -20,10 +20,8 @@ import com.baomidou.mybatisplus.annotation.TableField;
 import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
 import com.fasterxml.jackson.annotation.JsonProperty;
-
-import lombok.Data;
-
 import java.io.Serializable;
+import lombok.Data;

 /**
 * @TableName resource_course_category
--- a/playedu-api/playedu-course/src/main/java/xyz/playedu/course/domain/CourseChapter.java
+++ b/playedu-api/playedu-course/src/main/java/xyz/playedu/course/domain/CourseChapter.java
@@ -20,11 +20,9 @@ import com.baomidou.mybatisplus.annotation.TableField;
 import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
 import com.fasterxml.jackson.annotation.JsonProperty;
-
-import lombok.Data;
-
 import java.io.Serializable;
 import java.util.Date;
+import lombok.Data;

 /**
 * @TableName course_chapters
--- a/playedu-api/playedu-course/src/main/java/xyz/playedu/course/domain/CourseDepartment.java
+++ b/playedu-api/playedu-course/src/main/java/xyz/playedu/course/domain/CourseDepartment.java
@@ -20,10 +20,8 @@ import com.baomidou.mybatisplus.annotation.TableField;
 import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
 import com.fasterxml.jackson.annotation.JsonProperty;
-
-import lombok.Data;
-
 import java.io.Serializable;
+import lombok.Data;

 /**
 * @TableName course_department
--- a/playedu-api/playedu-course/src/main/java/xyz/playedu/course/domain/CourseHour.java
+++ b/playedu-api/playedu-course/src/main/java/xyz/playedu/course/domain/CourseHour.java
@@ -21,11 +21,9 @@ import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
 import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonProperty;
-
-import lombok.Data;
-
 import java.io.Serializable;
 import java.util.Date;
+import lombok.Data;

 /**
 * @TableName course_hour
--- a/playedu-api/playedu-course/src/main/java/xyz/playedu/course/domain/UserCourseHourRecord.java
+++ b/playedu-api/playedu-course/src/main/java/xyz/playedu/course/domain/UserCourseHourRecord.java
@@ -20,11 +20,9 @@ import com.baomidou.mybatisplus.annotation.TableField;
 import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
 import com.fasterxml.jackson.annotation.JsonProperty;
-
-import lombok.Data;
-
 import java.io.Serializable;
 import java.util.Date;
+import lombok.Data;

 /**
 * @TableName user_course_hour_records
--- a/playedu-api/playedu-course/src/main/java/xyz/playedu/course/domain/UserCourseRecord.java
+++ b/playedu-api/playedu-course/src/main/java/xyz/playedu/course/domain/UserCourseRecord.java
@@ -20,11 +20,9 @@ import com.baomidou.mybatisplus.annotation.TableField;
 import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
 import com.fasterxml.jackson.annotation.JsonProperty;
-
-import lombok.Data;
-
 import java.io.Serializable;
 import java.util.Date;
+import lombok.Data;

 /**
 * @TableName user_course_records
--- a/playedu-api/playedu-course/src/main/java/xyz/playedu/course/domain/UserLatestLearn.java
+++ b/playedu-api/playedu-course/src/main/java/xyz/playedu/course/domain/UserLatestLearn.java
@@ -16,7 +16,6 @@
 package xyz.playedu.course.domain;

 import com.fasterxml.jackson.annotation.JsonProperty;
-
 import lombok.Data;

 /**
--- a/playedu-api/playedu-course/src/main/java/xyz/playedu/course/domain/UserLearnDurationRecord.java
+++ b/playedu-api/playedu-course/src/main/java/xyz/playedu/course/domain/UserLearnDurationRecord.java
@@ -20,11 +20,9 @@ import com.baomidou.mybatisplus.annotation.TableField;
 import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
 import com.fasterxml.jackson.annotation.JsonProperty;
-
-import lombok.Data;
-
 import java.io.Serializable;
 import java.util.Date;
+import lombok.Data;

 /**
 * @TableName user_learn_duration_records
--- a/playedu-api/playedu-course/src/main/java/xyz/playedu/course/domain/UserLearnDurationStats.java
+++ b/playedu-api/playedu-course/src/main/java/xyz/playedu/course/domain/UserLearnDurationStats.java
@@ -20,11 +20,9 @@ import com.baomidou.mybatisplus.annotation.TableField;
 import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
 import com.fasterxml.jackson.annotation.JsonProperty;
-
-import lombok.Data;
-
 import java.io.Serializable;
 import java.util.Date;
+import lombok.Data;

 /**
 * @TableName user_learn_duration_stats
--- a/playedu-api/playedu-course/src/main/java/xyz/playedu/course/mapper/CourseAttachmentDownloadLogMapper.java
+++ b/playedu-api/playedu-course/src/main/java/xyz/playedu/course/mapper/CourseAttachmentDownloadLogMapper.java
@@ -16,14 +16,11 @@
 package xyz.playedu.course.mapper;

 import com.baomidou.mybatisplus.core.mapper.BaseMapper;
-
+import java.util.List;
 import org.apache.ibatis.annotations.Mapper;
-
 import xyz.playedu.common.types.paginate.CourseAttachmentDownloadLogPaginateFiler;
 import xyz.playedu.course.domain.CourseAttachmentDownloadLog;

-import java.util.List;
-
 /**
 * @author tengteng
 * @description 针对表【course_attachment_download_log】的数据库操作Mapper
--- a/playedu-api/playedu-course/src/main/java/xyz/playedu/course/mapper/CourseAttachmentMapper.java
+++ b/playedu-api/playedu-course/src/main/java/xyz/playedu/course/mapper/CourseAttachmentMapper.java
@@ -16,9 +16,7 @@
 package xyz.playedu.course.mapper;

 import com.baomidou.mybatisplus.core.mapper.BaseMapper;
-
 import org.apache.ibatis.annotations.Mapper;
-
 import xyz.playedu.course.domain.CourseAttachment;

 /**
--- a/playedu-api/playedu-course/src/main/java/xyz/playedu/course/mapper/CourseCategoryMapper.java
+++ b/playedu-api/playedu-course/src/main/java/xyz/playedu/course/mapper/CourseCategoryMapper.java
@@ -16,9 +16,7 @@
 package xyz.playedu.course.mapper;

 import com.baomidou.mybatisplus.core.mapper.BaseMapper;
-
 import org.apache.ibatis.annotations.Mapper;
-
 import xyz.playedu.course.domain.CourseCategory;

 /**
--- a/playedu-api/playedu-course/src/main/java/xyz/playedu/course/mapper/CourseChapterMapper.java
+++ b/playedu-api/playedu-course/src/main/java/xyz/playedu/course/mapper/CourseChapterMapper.java
@@ -16,9 +16,7 @@
 package xyz.playedu.course.mapper;

 import com.baomidou.mybatisplus.core.mapper.BaseMapper;
-
 import org.apache.ibatis.annotations.Mapper;
-
 import xyz.playedu.course.domain.CourseChapter;

 /**
--- a/playedu-api/playedu-course/src/main/java/xyz/playedu/course/mapper/CourseDepartmentMapper.java
+++ b/playedu-api/playedu-course/src/main/java/xyz/playedu/course/mapper/CourseDepartmentMapper.java
@@ -16,9 +16,7 @@
 package xyz.playedu.course.mapper;

 import com.baomidou.mybatisplus.core.mapper.BaseMapper;
-
 import org.apache.ibatis.annotations.Mapper;
-
 import xyz.playedu.course.domain.CourseDepartment;

 /**
--- a/playedu-api/playedu-course/src/main/java/xyz/playedu/course/mapper/CourseHourMapper.java
+++ b/playedu-api/playedu-course/src/main/java/xyz/playedu/course/mapper/CourseHourMapper.java
@@ -16,9 +16,7 @@
 package xyz.playedu.course.mapper;

 import com.baomidou.mybatisplus.core.mapper.BaseMapper;
-
 import org.apache.ibatis.annotations.Mapper;
-
 import xyz.playedu.course.domain.CourseHour;

 /**
--- a/playedu-api/playedu-course/src/main/java/xyz/playedu/course/mapper/CourseMapper.java
+++ b/playedu-api/playedu-course/src/main/java/xyz/playedu/course/mapper/CourseMapper.java
@@ -16,14 +16,11 @@
 package xyz.playedu.course.mapper;

 import com.baomidou.mybatisplus.core.mapper.BaseMapper;
-
+import java.util.List;
 import org.apache.ibatis.annotations.Mapper;
-
 import xyz.playedu.common.types.paginate.CoursePaginateFiler;
 import xyz.playedu.course.domain.Course;

-import java.util.List;
-
 /**
 * @author tengteng
 * @description 针对表【courses】的数据库操作Mapper
--- a/playedu-api/playedu-course/src/main/java/xyz/playedu/course/mapper/UserCourseHourRecordMapper.java
+++ b/playedu-api/playedu-course/src/main/java/xyz/playedu/course/mapper/UserCourseHourRecordMapper.java
@@ -16,17 +16,14 @@
 package xyz.playedu.course.mapper;

 import com.baomidou.mybatisplus.core.mapper.BaseMapper;
-
+import java.util.List;
 import org.apache.ibatis.annotations.Mapper;
-
 import xyz.playedu.common.types.mapper.UserCourseHourRecordCourseCountMapper;
 import xyz.playedu.common.types.mapper.UserCourseHourRecordUserCountMapper;
 import xyz.playedu.common.types.mapper.UserCourseHourRecordUserFirstCreatedAtMapper;
 import xyz.playedu.common.types.paginate.UserCourseHourRecordPaginateFilter;
 import xyz.playedu.course.domain.UserCourseHourRecord;

-import java.util.List;
-
 /**
 * @author tengteng
 * @description 针对表【user_course_hour_records】的数据库操作Mapper
--- a/playedu-api/playedu-course/src/main/java/xyz/playedu/course/mapper/UserCourseRecordMapper.java
+++ b/playedu-api/playedu-course/src/main/java/xyz/playedu/course/mapper/UserCourseRecordMapper.java
@@ -16,14 +16,11 @@
 package xyz.playedu.course.mapper;

 import com.baomidou.mybatisplus.core.mapper.BaseMapper;
-
+import java.util.List;
 import org.apache.ibatis.annotations.Mapper;
-
 import xyz.playedu.common.types.paginate.UserCourseRecordPaginateFilter;
 import xyz.playedu.course.domain.UserCourseRecord;

-import java.util.List;
-
 /**
 * @author tengteng
 * @description 针对表【user_course_records】的数据库操作Mapper
--- a/playedu-api/playedu-course/src/main/java/xyz/playedu/course/mapper/UserLearnDurationRecordMapper.java
+++ b/playedu-api/playedu-course/src/main/java/xyz/playedu/course/mapper/UserLearnDurationRecordMapper.java
@@ -16,9 +16,7 @@
 package xyz.playedu.course.mapper;

 import com.baomidou.mybatisplus.core.mapper.BaseMapper;
-
 import org.apache.ibatis.annotations.Mapper;
-
 import xyz.playedu.course.domain.UserLearnDurationRecord;

 /**
--- a/playedu-api/playedu-course/src/main/java/xyz/playedu/course/mapper/UserLearnDurationStatsMapper.java
+++ b/playedu-api/playedu-course/src/main/java/xyz/playedu/course/mapper/UserLearnDurationStatsMapper.java
@@ -16,9 +16,7 @@
 package xyz.playedu.course.mapper;

 import com.baomidou.mybatisplus.core.mapper.BaseMapper;
-
 import org.apache.ibatis.annotations.Mapper;
-
 import xyz.playedu.course.domain.UserLearnDurationStats;

 /**
--- a/playedu-api/playedu-course/src/main/java/xyz/playedu/course/service/CourseAttachmentDownloadLogService.java
+++ b/playedu-api/playedu-course/src/main/java/xyz/playedu/course/service/CourseAttachmentDownloadLogService.java
@@ -16,9 +16,7 @@
 package xyz.playedu.course.service;

 import com.baomidou.mybatisplus.extension.service.IService;
-
 import org.springframework.stereotype.Service;
-
 import xyz.playedu.common.types.paginate.CourseAttachmentDownloadLogPaginateFiler;
 import xyz.playedu.common.types.paginate.PaginationResult;
 import xyz.playedu.course.domain.CourseAttachmentDownloadLog;
--- a/playedu-api/playedu-course/src/main/java/xyz/playedu/course/service/CourseAttachmentService.java
+++ b/playedu-api/playedu-course/src/main/java/xyz/playedu/course/service/CourseAttachmentService.java
@@ -16,12 +16,10 @@
 package xyz.playedu.course.service;

 import com.baomidou.mybatisplus.extension.service.IService;
-
+import java.util.List;
 import xyz.playedu.common.exception.NotFoundException;
 import xyz.playedu.course.domain.CourseAttachment;

-import java.util.List;
-
 public interface CourseAttachmentService extends IService<CourseAttachment> {

    CourseAttachment findOrFail(Integer id, Integer courseId) throws NotFoundException;
--- a/playedu-api/playedu-course/src/main/java/xyz/playedu/course/service/CourseCategoryService.java
+++ b/playedu-api/playedu-course/src/main/java/xyz/playedu/course/service/CourseCategoryService.java
@@ -16,10 +16,8 @@
 package xyz.playedu.course.service;

 import com.baomidou.mybatisplus.extension.service.IService;
-
-import xyz.playedu.course.domain.CourseCategory;
-
 import java.util.List;
+import xyz.playedu.course.domain.CourseCategory;

 /**
 * @author tengteng
--- a/playedu-api/playedu-course/src/main/java/xyz/playedu/course/service/CourseChapterService.java
+++ b/playedu-api/playedu-course/src/main/java/xyz/playedu/course/service/CourseChapterService.java
@@ -16,12 +16,10 @@
 package xyz.playedu.course.service;

 import com.baomidou.mybatisplus.extension.service.IService;
-
+import java.util.List;
 import xyz.playedu.common.exception.NotFoundException;
 import xyz.playedu.course.domain.CourseChapter;

-import java.util.List;
-
 /**
 * @author tengteng
 * @description 针对表【course_chapters】的数据库操作Service
--- a/playedu-api/playedu-course/src/main/java/xyz/playedu/course/service/CourseDepartmentService.java
+++ b/playedu-api/playedu-course/src/main/java/xyz/playedu/course/service/CourseDepartmentService.java
@@ -16,10 +16,8 @@
 package xyz.playedu.course.service;

 import com.baomidou.mybatisplus.extension.service.IService;
-
-import xyz.playedu.course.domain.CourseDepartment;
-
 import java.util.List;
+import xyz.playedu.course.domain.CourseDepartment;

 /**
 * @author tengteng
--- a/playedu-api/playedu-course/src/main/java/xyz/playedu/course/service/CourseHourService.java
+++ b/playedu-api/playedu-course/src/main/java/xyz/playedu/course/service/CourseHourService.java
@@ -16,12 +16,10 @@
 package xyz.playedu.course.service;

 import com.baomidou.mybatisplus.extension.service.IService;
-
+import java.util.List;
 import xyz.playedu.common.exception.NotFoundException;
 import xyz.playedu.course.domain.CourseHour;

-import java.util.List;
-
 /**
 * @author tengteng
 * @description 针对表【course_hour】的数据库操作Service
--- a/playedu-api/playedu-course/src/main/java/xyz/playedu/course/service/CourseService.java
+++ b/playedu-api/playedu-course/src/main/java/xyz/playedu/course/service/CourseService.java
@@ -16,16 +16,14 @@
 package xyz.playedu.course.service;

 import com.baomidou.mybatisplus.extension.service.IService;
-
+import java.util.Date;
+import java.util.List;
+import java.util.Map;
 import xyz.playedu.common.exception.NotFoundException;
 import xyz.playedu.common.types.paginate.CoursePaginateFiler;
 import xyz.playedu.common.types.paginate.PaginationResult;
 import xyz.playedu.course.domain.Course;

-import java.util.Date;
-import java.util.List;
-import java.util.Map;
-
 /**
 * @author tengteng
 * @description 针对表【courses】的数据库操作Service
--- a/playedu-api/playedu-course/src/main/java/xyz/playedu/course/service/UserCourseHourRecordService.java
+++ b/playedu-api/playedu-course/src/main/java/xyz/playedu/course/service/UserCourseHourRecordService.java
@@ -16,7 +16,7 @@
 package xyz.playedu.course.service;

 import com.baomidou.mybatisplus.extension.service.IService;
-
+import java.util.List;
 import xyz.playedu.common.types.mapper.UserCourseHourRecordCourseCountMapper;
 import xyz.playedu.common.types.mapper.UserCourseHourRecordUserCountMapper;
 import xyz.playedu.common.types.mapper.UserCourseHourRecordUserFirstCreatedAtMapper;
@@ -24,8 +24,6 @@ import xyz.playedu.common.types.paginate.PaginationResult;
 import xyz.playedu.common.types.paginate.UserCourseHourRecordPaginateFilter;
 import xyz.playedu.course.domain.UserCourseHourRecord;

-import java.util.List;
-
 /**
 * @author tengteng
 * @description 针对表【user_course_hour_records】的数据库操作Service
--- a/playedu-api/playedu-course/src/main/java/xyz/playedu/course/service/UserCourseRecordService.java
+++ b/playedu-api/playedu-course/src/main/java/xyz/playedu/course/service/UserCourseRecordService.java
@@ -16,13 +16,11 @@
 package xyz.playedu.course.service;

 import com.baomidou.mybatisplus.extension.service.IService;
-
+import java.util.List;
 import xyz.playedu.common.types.paginate.PaginationResult;
 import xyz.playedu.common.types.paginate.UserCourseRecordPaginateFilter;
 import xyz.playedu.course.domain.UserCourseRecord;

-import java.util.List;
-
 /**
 * @author tengteng
 * @description 针对表【user_course_records】的数据库操作Service
--- a/playedu-api/playedu-course/src/main/java/xyz/playedu/course/service/UserLearnDurationRecordService.java
+++ b/playedu-api/playedu-course/src/main/java/xyz/playedu/course/service/UserLearnDurationRecordService.java
@@ -16,7 +16,6 @@
 package xyz.playedu.course.service;

 import com.baomidou.mybatisplus.extension.service.IService;
-
 import xyz.playedu.course.domain.UserLearnDurationRecord;

 /**
--- a/playedu-api/playedu-course/src/main/java/xyz/playedu/course/service/UserLearnDurationStatsService.java
+++ b/playedu-api/playedu-course/src/main/java/xyz/playedu/course/service/UserLearnDurationStatsService.java
@@ -16,10 +16,8 @@
 package xyz.playedu.course.service;

 import com.baomidou.mybatisplus.extension.service.IService;
-
-import xyz.playedu.course.domain.UserLearnDurationStats;
-
 import java.util.List;
+import xyz.playedu.course.domain.UserLearnDurationStats;

 /**
 * @author tengteng
--- a/playedu-api/playedu-course/src/main/java/xyz/playedu/course/service/impl/CourseAttachmentDownloadLogServiceImpl.java
+++ b/playedu-api/playedu-course/src/main/java/xyz/playedu/course/service/impl/CourseAttachmentDownloadLogServiceImpl.java
@@ -16,9 +16,7 @@
 package xyz.playedu.course.service.impl;

 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
-
 import org.springframework.stereotype.Service;
-
 import xyz.playedu.common.types.paginate.CourseAttachmentDownloadLogPaginateFiler;
 import xyz.playedu.common.types.paginate.PaginationResult;
 import xyz.playedu.course.domain.CourseAttachmentDownloadLog;
--- a/playedu-api/playedu-course/src/main/java/xyz/playedu/course/service/impl/CourseAttachmentServiceImpl.java
+++ b/playedu-api/playedu-course/src/main/java/xyz/playedu/course/service/impl/CourseAttachmentServiceImpl.java
@@ -16,18 +16,15 @@
 package xyz.playedu.course.service.impl;

 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
-
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
 import org.springframework.stereotype.Service;
-
 import xyz.playedu.common.exception.NotFoundException;
 import xyz.playedu.course.domain.CourseAttachment;
 import xyz.playedu.course.mapper.CourseAttachmentMapper;
 import xyz.playedu.course.service.CourseAttachmentService;

-import java.util.ArrayList;
-import java.util.Date;
-import java.util.List;
-
@Service
 public class CourseAttachmentServiceImpl
        extends ServiceImpl<CourseAttachmentMapper, CourseAttachment>
--- a/playedu-api/playedu-course/src/main/java/xyz/playedu/course/service/impl/CourseCategoryServiceImpl.java
+++ b/playedu-api/playedu-course/src/main/java/xyz/playedu/course/service/impl/CourseCategoryServiceImpl.java
@@ -16,15 +16,12 @@
 package xyz.playedu.course.service.impl;

 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
-
+import java.util.List;
 import org.springframework.stereotype.Service;
-
 import xyz.playedu.course.domain.CourseCategory;
 import xyz.playedu.course.mapper.CourseCategoryMapper;
 import xyz.playedu.course.service.CourseCategoryService;

-import java.util.List;
-
 /**
 * @author tengteng
 * @description 针对表【resource_course_category】的数据库操作Service实现
--- a/playedu-api/playedu-course/src/main/java/xyz/playedu/course/service/impl/CourseChapterServiceImpl.java
+++ b/playedu-api/playedu-course/src/main/java/xyz/playedu/course/service/impl/CourseChapterServiceImpl.java
@@ -16,18 +16,15 @@
 package xyz.playedu.course.service.impl;

 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
-
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
 import org.springframework.stereotype.Service;
-
 import xyz.playedu.common.exception.NotFoundException;
 import xyz.playedu.course.domain.CourseChapter;
 import xyz.playedu.course.mapper.CourseChapterMapper;
 import xyz.playedu.course.service.CourseChapterService;

-import java.util.ArrayList;
-import java.util.Date;
-import java.util.List;
-
 /**
 * @author tengteng
 * @description 针对表【course_chapters】的数据库操作Service实现
--- a/playedu-api/playedu-course/src/main/java/xyz/playedu/course/service/impl/CourseDepartmentServiceImpl.java
+++ b/playedu-api/playedu-course/src/main/java/xyz/playedu/course/service/impl/CourseDepartmentServiceImpl.java
@@ -16,15 +16,12 @@
 package xyz.playedu.course.service.impl;

 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
-
+import java.util.List;
 import org.springframework.stereotype.Service;
-
 import xyz.playedu.course.domain.CourseDepartment;
 import xyz.playedu.course.mapper.CourseDepartmentMapper;
 import xyz.playedu.course.service.CourseDepartmentService;

-import java.util.List;
-
 /**
 * @author tengteng
 * @description 针对表【course_department】的数据库操作Service实现
--- a/playedu-api/playedu-course/src/main/java/xyz/playedu/course/service/impl/CourseHourServiceImpl.java
+++ b/playedu-api/playedu-course/src/main/java/xyz/playedu/course/service/impl/CourseHourServiceImpl.java
@@ -16,18 +16,15 @@
 package xyz.playedu.course.service.impl;

 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
-
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
 import org.springframework.stereotype.Service;
-
 import xyz.playedu.common.exception.NotFoundException;
 import xyz.playedu.course.domain.CourseHour;
 import xyz.playedu.course.mapper.CourseHourMapper;
 import xyz.playedu.course.service.CourseHourService;

-import java.util.ArrayList;
-import java.util.Date;
-import java.util.List;
-
 /**
 * @author tengteng
 * @description 针对表【course_hour】的数据库操作Service实现
--- a/playedu-api/playedu-course/src/main/java/xyz/playedu/course/service/impl/CourseServiceImpl.java
+++ b/playedu-api/playedu-course/src/main/java/xyz/playedu/course/service/impl/CourseServiceImpl.java
@@ -16,13 +16,12 @@
 package xyz.playedu.course.service.impl;

 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
-
+import java.util.*;
+import java.util.stream.Collectors;
 import lombok.SneakyThrows;
-
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
-
 import xyz.playedu.common.exception.NotFoundException;
 import xyz.playedu.common.types.paginate.CoursePaginateFiler;
 import xyz.playedu.common.types.paginate.PaginationResult;
@@ -35,9 +34,6 @@ import xyz.playedu.course.service.CourseCategoryService;
 import xyz.playedu.course.service.CourseDepartmentService;
 import xyz.playedu.course.service.CourseService;

-import java.util.*;
-import java.util.stream.Collectors;
-
 /**
 * @author tengteng
 * @description 针对表【courses】的数据库操作Service实现
--- a/playedu-api/playedu-course/src/main/java/xyz/playedu/course/service/impl/UserCourseHourRecordServiceImpl.java
+++ b/playedu-api/playedu-course/src/main/java/xyz/playedu/course/service/impl/UserCourseHourRecordServiceImpl.java
@@ -16,9 +16,10 @@
 package xyz.playedu.course.service.impl;

 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
-
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
 import org.springframework.stereotype.Service;
-
 import xyz.playedu.common.types.mapper.UserCourseHourRecordCourseCountMapper;
 import xyz.playedu.common.types.mapper.UserCourseHourRecordUserCountMapper;
 import xyz.playedu.common.types.mapper.UserCourseHourRecordUserFirstCreatedAtMapper;
@@ -28,10 +29,6 @@ import xyz.playedu.course.domain.UserCourseHourRecord;
 import xyz.playedu.course.mapper.UserCourseHourRecordMapper;
 import xyz.playedu.course.service.UserCourseHourRecordService;

-import java.util.ArrayList;
-import java.util.Date;
-import java.util.List;
-
 /**
 * @author tengteng
 * @description 针对表【user_course_hour_records】的数据库操作Service实现
--- a/playedu-api/playedu-course/src/main/java/xyz/playedu/course/service/impl/UserCourseRecordServiceImpl.java
+++ b/playedu-api/playedu-course/src/main/java/xyz/playedu/course/service/impl/UserCourseRecordServiceImpl.java
@@ -16,20 +16,17 @@
 package xyz.playedu.course.service.impl;

 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
-
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
-
 import xyz.playedu.common.types.paginate.PaginationResult;
 import xyz.playedu.common.types.paginate.UserCourseRecordPaginateFilter;
 import xyz.playedu.course.domain.UserCourseRecord;
 import xyz.playedu.course.mapper.UserCourseRecordMapper;
 import xyz.playedu.course.service.UserCourseRecordService;

-import java.util.ArrayList;
-import java.util.Date;
-import java.util.List;
-
 /**
 * @author tengteng
 * @description 针对表【user_course_records】的数据库操作Service实现
--- a/playedu-api/playedu-course/src/main/java/xyz/playedu/course/service/impl/UserLearnDurationRecordServiceImpl.java
+++ b/playedu-api/playedu-course/src/main/java/xyz/playedu/course/service/impl/UserLearnDurationRecordServiceImpl.java
@@ -16,18 +16,14 @@
 package xyz.playedu.course.service.impl;

 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
-
+import java.text.SimpleDateFormat;
+import java.util.Date;
 import lombok.SneakyThrows;
-
 import org.springframework.stereotype.Service;
-
 import xyz.playedu.course.domain.UserLearnDurationRecord;
 import xyz.playedu.course.mapper.UserLearnDurationRecordMapper;
 import xyz.playedu.course.service.UserLearnDurationRecordService;

-import java.text.SimpleDateFormat;
-import java.util.Date;
-
 /**
 * @author tengteng
 * @description 针对表【user_learn_duration_records】的数据库操作Service实现
--- a/playedu-api/playedu-course/src/main/java/xyz/playedu/course/service/impl/UserLearnDurationStatsServiceImpl.java
+++ b/playedu-api/playedu-course/src/main/java/xyz/playedu/course/service/impl/UserLearnDurationStatsServiceImpl.java
@@ -16,20 +16,15 @@
 package xyz.playedu.course.service.impl;

 import cn.hutool.core.date.DateTime;
-
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
-
-import lombok.SneakyThrows;
-
-import org.springframework.stereotype.Service;
-
-import xyz.playedu.course.domain.UserLearnDurationStats;
-import xyz.playedu.course.mapper.UserLearnDurationStatsMapper;
-import xyz.playedu.course.service.UserLearnDurationStatsService;
-
 import java.text.SimpleDateFormat;
 import java.util.Date;
 import java.util.List;
+import lombok.SneakyThrows;
+import org.springframework.stereotype.Service;
+import xyz.playedu.course.domain.UserLearnDurationStats;
+import xyz.playedu.course.mapper.UserLearnDurationStatsMapper;
+import xyz.playedu.course.service.UserLearnDurationStatsService;

 /**
 * @author tengteng