学员真实学习时长记录

src/main/java/xyz/playedu/api/bus/UserBus.java

@@ -1,11 +1,17 @@
 package xyz.playedu.api.bus;
 
+import lombok.SneakyThrows;
 import org.apache.commons.collections4.CollectionUtils;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.ApplicationContext;
 import org.springframework.stereotype.Component;
+import xyz.playedu.api.PlayEduFCtx;
+import xyz.playedu.api.caches.UserLastLearnTimeCache;
 import xyz.playedu.api.domain.Course;
 import xyz.playedu.api.domain.CourseHour;
 import xyz.playedu.api.domain.User;
+import xyz.playedu.api.event.UserLearnCourseUpdateEvent;
+import xyz.playedu.api.exception.ServiceException;
 import xyz.playedu.api.service.CourseService;
 import xyz.playedu.api.service.UserService;
 
@@ -24,6 +30,12 @@ public class UserBus {
     @Autowired
     private UserService userService;
 
+    @Autowired
+    private UserLastLearnTimeCache userLastLearnTimeCache;
+
+    @Autowired
+    private ApplicationContext ctx;
+
     public boolean canSeeCourse(User user, Course course) {
         List<Integer> courseDepIds = courseService.getDepIdsByCourseId(course.getId());
         if (courseDepIds == null || courseDepIds.size() == 0) {
@@ -36,5 +48,20 @@ public class UserBus {
         }
         return CollectionUtils.intersection(courseDepIds, userDepIds).size() > 0;
     }
+    
+    public void userLearnDurationRecord(User user, Course course, CourseHour hour) {
+        Long curTime = System.currentTimeMillis();
+
+        // 最近一次学习时间
+        Long lastTime = userLastLearnTimeCache.get(PlayEduFCtx.getUserId());
+        // 最大周期为10s
+        if (lastTime == null || curTime - lastTime > 10000) {
+            lastTime = curTime - 10000;
+        }
+
+        userLastLearnTimeCache.put(user.getId(), curTime);
+
+        ctx.publishEvent(new UserLearnCourseUpdateEvent(this, user.getId(), course.getId(), hour.getId(), lastTime, curTime));
+    }
 
 }

src/main/java/xyz/playedu/api/caches/UserCanSeeCourseCache.java

@@ -25,12 +25,13 @@ public class UserCanSeeCourseCache {
     public boolean check(User user, Course course, boolean isThrow) throws ServiceException {
         boolean result;
         if (RedisUtil.exists(key(user, course))) {
-            result = "1".equals(RedisUtil.get(key(user, course)));
+            String cacheResult = (String) RedisUtil.get(key(user, course));
+            result = "1".equals(cacheResult);
         } else {
             result = userBus.canSeeCourse(user, course);
             put(user, course, result);
         }
-        if (isThrow) {
+        if (!result && isThrow) {
             throw new ServiceException("无权限观看");
         }
         return result;

src/main/java/xyz/playedu/api/caches/UserLastLearnTimeCache.java

@@ -0,0 +1,24 @@
+package xyz.playedu.api.caches;
+
+import org.springframework.stereotype.Component;
+import xyz.playedu.api.util.RedisUtil;
+
+/**
+ * @Author 杭州白书科技有限公司
+ * @create 2023/3/22 13:57
+ */
+@Component
+public class UserLastLearnTimeCache {
+
+    private final static String groupName = "user-learn-last-timestamp";
+
+    private final static int expire = 9500;//9.5s
+
+    public Long get(Integer userId) {
+        return (Long) RedisUtil.hGet(groupName, userId + "");
+    }
+
+    public void put(Integer userId, Long timestamp) {
+        RedisUtil.hSet(groupName, userId + "", timestamp);
+    }
+}

src/main/java/xyz/playedu/api/controller/frontend/HourController.java

@@ -1,17 +1,16 @@
 package xyz.playedu.api.controller.frontend;
 
+import lombok.SneakyThrows;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.validation.annotation.Validated;
 import org.springframework.web.bind.annotation.*;
 import xyz.playedu.api.PlayEduFCtx;
+import xyz.playedu.api.bus.UserBus;
 import xyz.playedu.api.caches.CourseCache;
 import xyz.playedu.api.caches.UserCanSeeCourseCache;
 import xyz.playedu.api.domain.*;
-import xyz.playedu.api.exception.NotFoundException;
-import xyz.playedu.api.exception.ServiceException;
 import xyz.playedu.api.request.frontend.CourseHourRecordRequest;
 import xyz.playedu.api.service.CourseHourService;
-import xyz.playedu.api.service.CourseService;
 import xyz.playedu.api.service.ResourceService;
 import xyz.playedu.api.service.UserCourseHourRecordService;
 import xyz.playedu.api.types.JsonResponse;
@@ -26,9 +25,6 @@ import java.util.HashMap;
 @RequestMapping("/api/v1/course/{courseId}/hour")
 public class HourController {
 
-    @Autowired
-    private CourseService courseService;
-
     @Autowired
     private CourseHourService hourService;
 
@@ -39,13 +35,18 @@ public class HourController {
     private UserCourseHourRecordService userCourseHourRecordService;
 
     @Autowired
-    private UserCanSeeCourseCache userCanSeeCourseCache;
+    private UserBus userBus;
 
+
+    // ------- CACHE ----------
+    @Autowired
+    private UserCanSeeCourseCache userCanSeeCourseCache;
     @Autowired
     private CourseCache courseCache;
 
     @GetMapping("/{id}/play")
-    public JsonResponse play(@PathVariable(name = "courseId") Integer courseId, @PathVariable(name = "id") Integer id) throws NotFoundException, ServiceException {
+    @SneakyThrows
+    public JsonResponse play(@PathVariable(name = "courseId") Integer courseId, @PathVariable(name = "id") Integer id) {
         Course course = courseCache.findOrFail(courseId);
         userCanSeeCourseCache.check(PlayEduFCtx.getUser(), course, true);
         CourseHour hour = hourService.findOrFail(id, courseId);
@@ -60,7 +61,8 @@ public class HourController {
     }
 
     @PostMapping("/{id}/record")
-    public JsonResponse record(@PathVariable(name = "courseId") Integer courseId, @PathVariable(name = "id") Integer id, @RequestBody @Validated CourseHourRecordRequest req) throws NotFoundException, ServiceException {
+    @SneakyThrows
+    public JsonResponse record(@PathVariable(name = "courseId") Integer courseId, @PathVariable(name = "id") Integer id, @RequestBody @Validated CourseHourRecordRequest req) {
         Integer duration = req.getDuration();
         if (duration <= 0) {
             return JsonResponse.error("duration参数错误");
@@ -79,9 +81,12 @@ public class HourController {
     }
 
     @PostMapping("/{id}/ping")
-    public JsonResponse ping(@PathVariable(name = "courseId") Integer courseId, @PathVariable(name = "id") Integer id) throws NotFoundException, ServiceException {
+    @SneakyThrows
+    public JsonResponse ping(@PathVariable(name = "courseId") Integer courseId, @PathVariable(name = "id") Integer id) {
         Course course = courseCache.findOrFail(courseId);
+        CourseHour hour = hourService.findOrFail(id, courseId);
         userCanSeeCourseCache.check(PlayEduFCtx.getUser(), course, true);
+        userBus.userLearnDurationRecord(PlayEduFCtx.getUser(), course, hour);
         return JsonResponse.success();
     }
 

src/main/java/xyz/playedu/api/domain/UserLearnDurationRecord.java

@@ -6,8 +6,6 @@ import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
 import java.io.Serializable;
 import java.util.Date;
-
-import com.fasterxml.jackson.annotation.JsonProperty;
 import lombok.Data;
 
 /**
@@ -26,13 +24,12 @@ public class UserLearnDurationRecord implements Serializable {
     /**
      * 
      */
-    @JsonProperty("user_id")
     private Integer userId;
 
     /**
      * 
      */
-    private Date date;
+    private Date createdDate;
 
     /**
      * 已学习时长[微秒]
@@ -42,15 +39,23 @@ public class UserLearnDurationRecord implements Serializable {
     /**
      * 开始时间
      */
-    @JsonProperty("start_at")
     private Date startAt;
 
     /**
      * 结束时间
      */
-    @JsonProperty("end_at")
     private Date endAt;
 
+    /**
+     * 
+     */
+    private Integer courseId;
+
+    /**
+     * 
+     */
+    private Integer hourId;
+
     @TableField(exist = false)
     private static final long serialVersionUID = 1L;
 
@@ -68,10 +73,12 @@ public class UserLearnDurationRecord implements Serializable {
         UserLearnDurationRecord other = (UserLearnDurationRecord) that;
         return (this.getId() == null ? other.getId() == null : this.getId().equals(other.getId()))
             && (this.getUserId() == null ? other.getUserId() == null : this.getUserId().equals(other.getUserId()))
-            && (this.getDate() == null ? other.getDate() == null : this.getDate().equals(other.getDate()))
+            && (this.getCreatedDate() == null ? other.getCreatedDate() == null : this.getCreatedDate().equals(other.getCreatedDate()))
             && (this.getDuration() == null ? other.getDuration() == null : this.getDuration().equals(other.getDuration()))
             && (this.getStartAt() == null ? other.getStartAt() == null : this.getStartAt().equals(other.getStartAt()))
-            && (this.getEndAt() == null ? other.getEndAt() == null : this.getEndAt().equals(other.getEndAt()));
+            && (this.getEndAt() == null ? other.getEndAt() == null : this.getEndAt().equals(other.getEndAt()))
+            && (this.getCourseId() == null ? other.getCourseId() == null : this.getCourseId().equals(other.getCourseId()))
+            && (this.getHourId() == null ? other.getHourId() == null : this.getHourId().equals(other.getHourId()));
     }
 
     @Override
@@ -80,10 +87,12 @@ public class UserLearnDurationRecord implements Serializable {
         int result = 1;
         result = prime * result + ((getId() == null) ? 0 : getId().hashCode());
         result = prime * result + ((getUserId() == null) ? 0 : getUserId().hashCode());
-        result = prime * result + ((getDate() == null) ? 0 : getDate().hashCode());
+        result = prime * result + ((getCreatedDate() == null) ? 0 : getCreatedDate().hashCode());
         result = prime * result + ((getDuration() == null) ? 0 : getDuration().hashCode());
         result = prime * result + ((getStartAt() == null) ? 0 : getStartAt().hashCode());
         result = prime * result + ((getEndAt() == null) ? 0 : getEndAt().hashCode());
+        result = prime * result + ((getCourseId() == null) ? 0 : getCourseId().hashCode());
+        result = prime * result + ((getHourId() == null) ? 0 : getHourId().hashCode());
         return result;
     }
 
@@ -95,10 +104,12 @@ public class UserLearnDurationRecord implements Serializable {
         sb.append("Hash = ").append(hashCode());
         sb.append(", id=").append(id);
         sb.append(", userId=").append(userId);
-        sb.append(", date=").append(date);
+        sb.append(", createdDate=").append(createdDate);
         sb.append(", duration=").append(duration);
         sb.append(", startAt=").append(startAt);
         sb.append(", endAt=").append(endAt);
+        sb.append(", courseId=").append(courseId);
+        sb.append(", hourId=").append(hourId);
         sb.append(", serialVersionUID=").append(serialVersionUID);
         sb.append("]");
         return sb.toString();

src/main/java/xyz/playedu/api/domain/UserLearnDurationStats.java

@@ -0,0 +1,85 @@
+package xyz.playedu.api.domain;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableField;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import java.io.Serializable;
+import java.util.Date;
+import lombok.Data;
+
+/**
+ * 
+ * @TableName user_learn_duration_stats
+ */
+@TableName(value ="user_learn_duration_stats")
+@Data
+public class UserLearnDurationStats implements Serializable {
+    /**
+     * 
+     */
+    @TableId(type = IdType.AUTO)
+    private Integer id;
+
+    /**
+     * 
+     */
+    private Integer userId;
+
+    /**
+     * 
+     */
+    private Integer duration;
+
+    /**
+     * 
+     */
+    private Date createdDate;
+
+    @TableField(exist = false)
+    private static final long serialVersionUID = 1L;
+
+    @Override
+    public boolean equals(Object that) {
+        if (this == that) {
+            return true;
+        }
+        if (that == null) {
+            return false;
+        }
+        if (getClass() != that.getClass()) {
+            return false;
+        }
+        UserLearnDurationStats other = (UserLearnDurationStats) that;
+        return (this.getId() == null ? other.getId() == null : this.getId().equals(other.getId()))
+            && (this.getUserId() == null ? other.getUserId() == null : this.getUserId().equals(other.getUserId()))
+            && (this.getDuration() == null ? other.getDuration() == null : this.getDuration().equals(other.getDuration()))
+            && (this.getCreatedDate() == null ? other.getCreatedDate() == null : this.getCreatedDate().equals(other.getCreatedDate()));
+    }
+
+    @Override
+    public int hashCode() {
+        final int prime = 31;
+        int result = 1;
+        result = prime * result + ((getId() == null) ? 0 : getId().hashCode());
+        result = prime * result + ((getUserId() == null) ? 0 : getUserId().hashCode());
+        result = prime * result + ((getDuration() == null) ? 0 : getDuration().hashCode());
+        result = prime * result + ((getCreatedDate() == null) ? 0 : getCreatedDate().hashCode());
+        return result;
+    }
+
+    @Override
+    public String toString() {
+        StringBuilder sb = new StringBuilder();
+        sb.append(getClass().getSimpleName());
+        sb.append(" [");
+        sb.append("Hash = ").append(hashCode());
+        sb.append(", id=").append(id);
+        sb.append(", userId=").append(userId);
+        sb.append(", duration=").append(duration);
+        sb.append(", createdDate=").append(createdDate);
+        sb.append(", serialVersionUID=").append(serialVersionUID);
+        sb.append("]");
+        return sb.toString();
+    }
+}

src/main/java/xyz/playedu/api/event/UserLearnCourseUpdateEvent.java

@@ -0,0 +1,31 @@
+package xyz.playedu.api.event;
+
+import lombok.Getter;
+import lombok.Setter;
+import org.springframework.context.ApplicationEvent;
+
+import java.util.Date;
+
+/**
+ * @Author 杭州白书科技有限公司
+ * @create 2023/3/22 14:14
+ */
+@Setter
+@Getter
+public class UserLearnCourseUpdateEvent extends ApplicationEvent {
+
+    private Integer userId;
+    private Integer courseId;
+    private Integer hourId;
+    private Long startAt;
+    private Long endAt;
+
+    public UserLearnCourseUpdateEvent(Object source, Integer userId, Integer courseId, Integer hourId, Long startTime, Long endTime) {
+        super(source);
+        this.userId = userId;
+        this.courseId = courseId;
+        this.hourId = hourId;
+        this.startAt = startTime;
+        this.endAt = endTime;
+    }
+}

src/main/java/xyz/playedu/api/listener/UserLearnCourseUpdateListener.java

@@ -0,0 +1,35 @@
+package xyz.playedu.api.listener;
+
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.event.EventListener;
+import org.springframework.scheduling.annotation.Async;
+import org.springframework.stereotype.Component;
+import xyz.playedu.api.event.UserLearnCourseUpdateEvent;
+import xyz.playedu.api.service.UserLearnDurationRecordService;
+import xyz.playedu.api.service.UserLearnDurationStatsService;
+
+/**
+ * @Author 杭州白书科技有限公司
+ * @create 2023/3/22 14:18
+ */
+@Component
+@Slf4j
+public class UserLearnCourseUpdateListener {
+
+    @Autowired
+    private UserLearnDurationRecordService userLearnDurationRecordService;
+
+    @Autowired
+    private UserLearnDurationStatsService userLearnDurationStatsService;
+
+    @Async
+    @EventListener
+    public void storeLearnDuration(UserLearnCourseUpdateEvent event) {
+        // 观看时长统计
+        userLearnDurationStatsService.storeOrUpdate(event.getUserId(), event.getStartAt(), event.getEndAt());
+        // 观看记录
+        userLearnDurationRecordService.store(event.getUserId(), event.getCourseId(), event.getHourId(), event.getStartAt(), event.getEndAt());
+    }
+
+}

src/main/java/xyz/playedu/api/mapper/UserLearnDurationRecordMapper.java

@@ -7,7 +7,7 @@ import com.baomidou.mybatisplus.core.mapper.BaseMapper;
 /**
 * @author tengteng
 * @description 针对表【user_learn_duration_records】的数据库操作Mapper
-* @createDate 2023-03-20 16:41:12
+* @createDate 2023-03-22 13:55:17
 * @Entity xyz.playedu.api.domain.UserLearnDurationRecord
 */
 @Mapper

src/main/java/xyz/playedu/api/mapper/UserLearnDurationStatsMapper.java

@@ -0,0 +1,20 @@
+package xyz.playedu.api.mapper;
+
+import org.apache.ibatis.annotations.Mapper;
+import xyz.playedu.api.domain.UserLearnDurationStats;
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+
+/**
+* @author tengteng
+* @description 针对表【user_learn_duration_stats】的数据库操作Mapper
+* @createDate 2023-03-22 13:55:29
+* @Entity xyz.playedu.api.domain.UserLearnDurationStats
+*/
+@Mapper
+public interface UserLearnDurationStatsMapper extends BaseMapper<UserLearnDurationStats> {
+
+}
+
+
+
+

src/main/java/xyz/playedu/api/service/UserLearnDurationRecordService.java

@@ -4,10 +4,10 @@ import xyz.playedu.api.domain.UserLearnDurationRecord;
 import com.baomidou.mybatisplus.extension.service.IService;
 
 /**
-* @author tengteng
+ * @author tengteng
-* @description 针对表【user_learn_duration_records】的数据库操作Service
+ * @description 针对表【user_learn_duration_records】的数据库操作Service
-* @createDate 2023-03-20 16:41:12
+ * @createDate 2023-03-20 16:41:12
-*/
+ */
 public interface UserLearnDurationRecordService extends IService<UserLearnDurationRecord> {
-
+    void store(Integer userId, Integer courseId, Integer hourId, Long startTime, Long endTime);
 }

src/main/java/xyz/playedu/api/service/UserLearnDurationStatsService.java

@@ -0,0 +1,13 @@
+package xyz.playedu.api.service;
+
+import xyz.playedu.api.domain.UserLearnDurationStats;
+import com.baomidou.mybatisplus.extension.service.IService;
+
+/**
+ * @author tengteng
+ * @description 针对表【user_learn_duration_stats】的数据库操作Service
+ * @createDate 2023-03-22 13:55:29
+ */
+public interface UserLearnDurationStatsService extends IService<UserLearnDurationStats> {
+    void storeOrUpdate(Integer userId, Long startTime, Long endTime);
+}

src/main/java/xyz/playedu/api/service/impl/UserLearnDurationRecordServiceImpl.java

@@ -1,20 +1,42 @@
 package xyz.playedu.api.service.impl;
 
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import lombok.SneakyThrows;
 import xyz.playedu.api.domain.UserLearnDurationRecord;
 import xyz.playedu.api.service.UserLearnDurationRecordService;
 import xyz.playedu.api.mapper.UserLearnDurationRecordMapper;
 import org.springframework.stereotype.Service;
 
+import java.text.SimpleDateFormat;
+import java.util.Date;
+
 /**
-* @author tengteng
+ * @author tengteng
-* @description 针对表【user_learn_duration_records】的数据库操作Service实现
+ * @description 针对表【user_learn_duration_records】的数据库操作Service实现
-* @createDate 2023-03-20 16:41:12
+ * @createDate 2023-03-20 16:41:12
-*/
+ */
 @Service
 public class UserLearnDurationRecordServiceImpl extends ServiceImpl<UserLearnDurationRecordMapper, UserLearnDurationRecord>
-    implements UserLearnDurationRecordService{
+        implements UserLearnDurationRecordService {
 
+    @Override
+    @SneakyThrows
+    public void store(Integer userId, Integer courseId, Integer hourId, Long startTime, Long endTime) {
+        // 处理日期
+        SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd");
+        String date = simpleDateFormat.format(new Date(endTime));
+
+        UserLearnDurationRecord record = new UserLearnDurationRecord();
+        record.setUserId(userId);
+        record.setCourseId(courseId);
+        record.setHourId(hourId);
+        record.setStartAt(new Date(startTime));
+        record.setEndAt(new Date(endTime));
+        record.setDuration((int) (endTime - startTime));
+        record.setCreatedDate(simpleDateFormat.parse(date));
+
+        save(record);
+    }
 }
 
 

src/main/java/xyz/playedu/api/service/impl/UserLearnDurationStatsServiceImpl.java

@@ -0,0 +1,50 @@
+package xyz.playedu.api.service.impl;
+
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import lombok.SneakyThrows;
+import xyz.playedu.api.domain.UserLearnDurationStats;
+import xyz.playedu.api.service.UserLearnDurationStatsService;
+import xyz.playedu.api.mapper.UserLearnDurationStatsMapper;
+import org.springframework.stereotype.Service;
+
+import java.text.SimpleDateFormat;
+import java.util.Date;
+
+/**
+ * @author tengteng
+ * @description 针对表【user_learn_duration_stats】的数据库操作Service实现
+ * @createDate 2023-03-22 13:55:29
+ */
+@Service
+public class UserLearnDurationStatsServiceImpl extends ServiceImpl<UserLearnDurationStatsMapper, UserLearnDurationStats>
+        implements UserLearnDurationStatsService {
+
+    @Override
+    @SneakyThrows
+    public void storeOrUpdate(Integer userId, Long startTime, Long endTime) {
+        // 处理日期
+        SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd");
+        String date = simpleDateFormat.format(new Date(endTime));
+        // duration
+        Long duration = endTime - startTime;
+
+        UserLearnDurationStats stats = getOne(query().getWrapper().eq("user_id", userId).eq("created_date", date));
+        if (stats == null) {
+            UserLearnDurationStats newStats = new UserLearnDurationStats();
+            newStats.setUserId(userId);
+            newStats.setDuration(Math.toIntExact(duration));
+            newStats.setCreatedDate(simpleDateFormat.parse(date));
+            save(newStats);
+            return;
+        }
+
+        UserLearnDurationStats newStats = new UserLearnDurationStats();
+        newStats.setId(stats.getId());
+        newStats.setDuration((int) (stats.getDuration() + duration));
+        updateById(newStats);
+    }
+}
+
+
+
+

src/main/resources/mapper/UserLearnDurationRecordMapper.xml

@@ -7,14 +7,17 @@
     <resultMap id="BaseResultMap" type="xyz.playedu.api.domain.UserLearnDurationRecord">
             <id property="id" column="id" jdbcType="BIGINT"/>
             <result property="userId" column="user_id" jdbcType="INTEGER"/>
-            <result property="date" column="date" jdbcType="DATE"/>
+            <result property="createdDate" column="created_date" jdbcType="DATE"/>
             <result property="duration" column="duration" jdbcType="INTEGER"/>
             <result property="startAt" column="start_at" jdbcType="TIMESTAMP"/>
             <result property="endAt" column="end_at" jdbcType="TIMESTAMP"/>
+            <result property="courseId" column="course_id" jdbcType="INTEGER"/>
+            <result property="hourId" column="hour_id" jdbcType="INTEGER"/>
     </resultMap>
 
     <sql id="Base_Column_List">
-        id,user_id,date,
+        id,user_id,created_date,
-        duration,start_at,end_at
+        duration,start_at,end_at,
+        course_id,hour_id
     </sql>
 </mapper>

src/main/resources/mapper/UserLearnDurationStatsMapper.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE mapper
+        PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
+        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="xyz.playedu.api.mapper.UserLearnDurationStatsMapper">
+
+    <resultMap id="BaseResultMap" type="xyz.playedu.api.domain.UserLearnDurationStats">
+            <id property="id" column="id" jdbcType="INTEGER"/>
+            <result property="userId" column="user_id" jdbcType="INTEGER"/>
+            <result property="duration" column="duration" jdbcType="INTEGER"/>
+            <result property="createdDate" column="created_date" jdbcType="DATE"/>
+    </resultMap>
+
+    <sql id="Base_Column_List">
+        id,user_id,duration,
+        created_date
+    </sql>
+</mapper>