学习记录init

pom.xml

@@ -97,6 +97,14 @@
             <artifactId>hutool-all</artifactId>
             <version>5.8.11</version>
         </dependency>
+
+        <!-- pagehelper -->
+        <dependency>
+            <groupId>com.github.pagehelper</groupId>
+            <artifactId>pagehelper</artifactId>
+            <version>4.1.6</version>
+        </dependency>
+
     </dependencies>
 
 

src/main/java/com/teaching/backend/controller/ChapterController.java

@@ -1,20 +0,0 @@
-package com.teaching.backend.controller;
-
-
-import org.springframework.web.bind.annotation.RequestMapping;
-
-import org.springframework.web.bind.annotation.RestController;
-
-/**
- * <p>
- *  前端控制器
- * </p>
- *
- * @author author
- * @since 2024-06-07
- */
-@RestController
-@RequestMapping("/chapter")
-public class ChapterController {
-
-}

src/main/java/com/teaching/backend/controller/chapter/ChapterController.java

@@ -1,28 +0,0 @@
-package com.teaching.backend.controller.chapter;
-
-
-
-import com.teaching.backend.service.chapter.IChapterService;
-import io.swagger.annotations.Api;
-import lombok.extern.slf4j.Slf4j;
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RestController;
-
-import java.util.List;
-
-/**
- *
- * @author author
- * @since 2024-05-31
- */
-@Slf4j
-@Api(tags = "章节管理")
-@RestController
-@RequestMapping("/chapter")
-public class ChapterController {
-    @Autowired
-    private IChapterService chapterService;
-
-}

src/main/java/com/teaching/backend/controller/records/LearningRecordsController.java

@@ -0,0 +1,89 @@
+package com.teaching.backend.controller.records;
+
+
+import com.github.pagehelper.PageHelper;
+import com.github.pagehelper.PageInfo;
+import com.teaching.backend.common.BaseResponse;
+import com.teaching.backend.common.ResultUtils;
+
+import com.teaching.backend.model.entity.records.LearningRecords;
+import com.teaching.backend.model.vo.records.LearningRecordsVo;
+import com.teaching.backend.service.impl.records.LearningRecordsServiceImpl;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.ArrayList;
+import java.util.List;
+
+@RestController
+@RequestMapping("/learningrecords")
+public class LearningRecordsController {
+
+    @Autowired
+    private LearningRecordsServiceImpl learningRecordsService;
+
+
+    /**
+     * 获取当前登录用户的学习记录
+     * @param m
+     * @param pagenum
+     * @param pagesize
+     * @return
+     */
+    @GetMapping("/getall")
+    public BaseResponse<PageInfo> getAll(Model m,
+                                         @RequestParam(value = "pagenum", defaultValue = "1") int pagenum,
+                                         @RequestParam(value = "pagesize", defaultValue = "15") int pagesize,
+                                         @RequestParam String userId){
+        PageHelper.startPage(pagenum,pagesize,"id desc");
+        List<LearningRecordsVo> cs= learningRecordsService.getAll(userId);
+        List<LearningRecordsVo> pageCs = new ArrayList<>();
+        //当前页面
+        for(int i = (pagenum - 1) * pagesize; i < cs.size() && i < (pagenum) * pagesize; i++){
+            pageCs.add(cs.get(i));
+        }
+        PageInfo<LearningRecordsVo> pageInfo = new PageInfo<>(pageCs);
+        System.out.println("当前页面:"+pagenum);
+        System.out.println("当前页面大小:"+pagesize);
+        System.out.println("当前页面内容:"+pageCs);
+//        PageInfo<LearningRecordsVo> pageInfo = new PageInfo<>(cs);
+        pageInfo.setPageSize(pagesize);//设置当前页面大小
+        pageInfo.setPageNum(pagenum);//设置当前页码
+        pageInfo.setSize(pagesize);//不知道是啥，---------
+        pageInfo.setTotal(cs.size());//设置总条数
+        long total = pageInfo.getTotal(); // 总记录数
+        pageInfo.setPages((int)(Math.ceil((double) total / pagesize)));//设置总页数
+        return ResultUtils.success(pageInfo);
+    }
+
+    @GetMapping("/all")
+    public BaseResponse<List<LearningRecords>> All(){
+        System.out.println("学习记录:"+learningRecordsService.list());
+        return ResultUtils.success(learningRecordsService.list());
+    }
+
+    //资源类型: 1,课程学习记录,2,知识点学习记录,3课程资源学习记录
+    /**
+     * 添加课程记录
+     * @param learningRecords
+     * @return
+     */
+    @PostMapping("/saverecords")
+    public BaseResponse<String> saveRecords(@RequestBody LearningRecords learningRecords){
+        System.out.println(learningRecords);
+        return ResultUtils.success(learningRecordsService.saveRecords(learningRecords));
+    }
+
+    /**
+     * 根据id删除
+     * @param ids
+     * @return
+     */
+    @DeleteMapping("/delete")
+    public BaseResponse<String> deleteRecords(@RequestParam List<Long> ids){
+
+        return ResultUtils.success(learningRecordsService.delete(ids));
+    }
+
+}

src/main/java/com/teaching/backend/mapper/ChapterMapper.java

@@ -1,16 +0,0 @@
-package com.teaching.backend.mapper;
-
-import com.teaching.backend.entity.Chapter;
-import com.baomidou.mybatisplus.core.mapper.BaseMapper;
-
-/**
- * <p>
- *  Mapper 接口
- * </p>
- *
- * @author author
- * @since 2024-06-07
- */
-public interface ChapterMapper extends BaseMapper<Chapter> {
-
-}

src/main/java/com/teaching/backend/mapper/know/KnowMapper.java

@@ -1,7 +1,7 @@
-package com.teaching.mapper;
+package com.teaching.backend.mapper.know;
 
 import com.baomidou.mybatisplus.core.mapper.BaseMapper;
-import com.teaching.model.entity.Know;
+import com.teaching.backend.model.entity.know.Know;
 import org.apache.ibatis.annotations.Mapper;
 
 @Mapper

src/main/java/com/teaching/backend/mapper/records/LearningRecordsMapper.java

@@ -0,0 +1,15 @@
+package com.teaching.backend.mapper.records;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.baomidou.mybatisplus.core.metadata.IPage;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+
+import com.teaching.backend.model.entity.records.LearningRecords;
+import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Param;
+
+@Mapper
+public interface LearningRecordsMapper extends BaseMapper<LearningRecords> {
+    IPage<LearningRecords> selectPageList(Page<LearningRecords> page, @Param("model")LearningRecords model);
+
+}

src/main/java/com/teaching/backend/model/entity/chapter/Chapter.java

@@ -25,7 +25,6 @@ import java.time.LocalDateTime;
 @EqualsAndHashCode(callSuper = false)
 @Accessors(chain = true)
 @TableName("chapter")
-@ApiModel(value="Chapter对象", description="")
 public class Chapter implements Serializable {
 
     private static final long serialVersionUID = 1L;

src/main/java/com/teaching/backend/model/entity/know/Know.java

@@ -1,4 +1,4 @@
-package com.teaching.model.entity;
+package com.teaching.backend.model.entity.know;
 
 import io.swagger.annotations.Api;
 import lombok.AllArgsConstructor;
@@ -6,7 +6,6 @@ import lombok.Data;
 import lombok.NoArgsConstructor;
 
 
-import javax.persistence.Table;
 import java.io.Serializable;
 import java.time.LocalDateTime;
 

src/main/java/com/teaching/backend/model/entity/records/LearningRecords.java

@@ -0,0 +1,96 @@
+package com.teaching.backend.model.entity.records;
+
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import lombok.experimental.Accessors;
+
+import java.time.LocalDateTime;
+
+
+@Data
+@EqualsAndHashCode(callSuper = false)
+@Accessors(chain = true)
+@TableName("learning_records")
+public class LearningRecords {
+    private static final long serialVersionUID = 1L;
+
+    /**
+     * 内部编号
+     */
+    @TableId(value = "id", type = IdType.ASSIGN_ID)
+    private String id;
+
+    /**
+     * 用户id
+     */
+    private String userId;
+
+    /**
+     * 课程id
+     */
+    private String coursesId;
+    /**
+     * 章节id
+     */
+    private String chapterId;
+    /**
+     * 知识点id
+     */
+    private String knowledgePointId;
+    /**
+     * 资源id
+     */
+    private String resourceId;
+    /**
+     * 访问时间
+     */
+    private LocalDateTime accessTime;
+
+    /**
+     * 学习方式:打开; 1,打开过,2未打开
+     */
+    private String learningMethod1;
+    /**
+     * 学习方式:下载; 1下载过, 2未下载
+     */
+    private String learningMethod2;
+    /**
+     *视频学习时长
+     */
+    private String videoDuration;
+
+    /**
+     *是否完成观看：1，已完成，0未完成
+     */
+    private String isCompleted;
+
+    /**
+     * 记录封面图片
+     */
+    private String content;
+    /**
+     * 资源地址
+     */
+    private String address;
+
+    /**
+     * 是否存在: 1存在;0不存在;
+     */
+    private String status;
+    /**
+     * 类型, 如:1,课程; 2,章节; 3,知识点; 4,学习资源
+     */
+    private String type;
+    /**
+     * 父节点
+     */
+    private String parentNode;
+
+
+
+
+}

src/main/java/com/teaching/backend/model/vo/records/LearningRecordsVo.java

@@ -0,0 +1,59 @@
+package com.teaching.backend.model.vo.records;
+
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import lombok.experimental.Accessors;
+
+@Data
+@EqualsAndHashCode(callSuper = false)
+@Accessors(chain = true)
+public class LearningRecordsVo {
+//    private static final long serialVersionUID = 1L;
+
+    /**
+     * 内部编号
+     */
+    private String id;
+
+    /**
+     * 课程名称
+     */
+    private String coursesName;
+
+//    /**
+//     * 资源类型
+//     */
+//    private String type;
+
+    /**
+     * 封面
+     */
+    private String content;
+
+    /**
+     * 资源观看人数
+     */
+    private Long number;
+
+
+    /**
+     * 上次观看时间
+     */
+    private String time;
+    /**
+     * 地址
+     */
+    private String address;
+//    /**
+//     * 创建日期
+//     */
+//    private LocalDateTime createTime;
+//
+//    /**
+//     * 更新日期
+//     */
+//    private LocalDateTime updateTime;
+
+
+
+}

src/main/java/com/teaching/backend/service/IChapterService.java

@@ -1,16 +0,0 @@
-package com.teaching.backend.service;
-
-import com.teaching.backend.entity.Chapter;
-import com.baomidou.mybatisplus.extension.service.IService;
-
-/**
- * <p>
- *  服务类
- * </p>
- *
- * @author author
- * @since 2024-06-07
- */
-public interface IChapterService extends IService<Chapter> {
-
-}

src/main/java/com/teaching/backend/service/impl/ChapterServiceImpl.java

@@ -1,20 +0,0 @@
-package com.teaching.backend.service.impl;
-
-import com.teaching.backend.entity.Chapter;
-import com.teaching.backend.mapper.ChapterMapper;
-import com.teaching.backend.service.IChapterService;
-import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
-import org.springframework.stereotype.Service;
-
-/**
- * <p>
- *  服务实现类
- * </p>
- *
- * @author author
- * @since 2024-06-07
- */
-@Service
-public class ChapterServiceImpl extends ServiceImpl<ChapterMapper, Chapter> implements IChapterService {
-
-}

src/main/java/com/teaching/backend/service/impl/know/IknowServiceimpl.java

@@ -0,0 +1,12 @@
+package com.teaching.backend.service.impl.know;
+
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.teaching.backend.mapper.know.KnowMapper;
+import com.teaching.backend.model.entity.know.Know;
+import com.teaching.backend.service.know.IknowService;
+import org.springframework.stereotype.Service;
+
+@Service
+public class IknowServiceimpl extends ServiceImpl<KnowMapper,Know> implements IknowService {
+
+}

src/main/java/com/teaching/backend/service/impl/records/LearningRecordsServiceImpl.java

@@ -0,0 +1,185 @@
+package com.teaching.backend.service.impl.records;
+
+import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
+import com.baomidou.mybatisplus.core.metadata.IPage;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+
+import com.teaching.backend.mapper.records.LearningRecordsMapper;
+
+import com.teaching.backend.model.entity.records.LearningRecords;
+import com.teaching.backend.model.vo.records.LearningRecordsVo;
+import com.teaching.backend.service.impl.chapter.ChapterServiceImpl;
+import com.teaching.backend.service.impl.courses.CoursesServiceImpl;
+import com.teaching.backend.service.impl.know.IknowServiceimpl;
+import com.teaching.backend.service.records.LearningRecordsService;
+import org.springframework.beans.BeanUtils;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.text.SimpleDateFormat;
+import java.time.LocalDateTime;
+import java.time.ZoneId;
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
+
+@Service
+public class LearningRecordsServiceImpl extends ServiceImpl<LearningRecordsMapper, LearningRecords> implements LearningRecordsService {
+
+    @Autowired
+    private CoursesServiceImpl coursesService;
+    @Autowired
+    private LearningRecordsMapper learningRecordsMapper;
+//    @Autowired
+//    private LearningResourceServiceImpl learningResourceService;
+    @Autowired
+    private IknowServiceimpl knowledgePointService;
+    @Autowired
+    private ChapterServiceImpl chapterService;
+
+    @Override
+    public IPage<LearningRecords> selectPageList(Page<LearningRecords> page, LearningRecords model) {
+        return learningRecordsMapper.selectPageList(page,model);
+    }
+
+    @Override
+    public String delete(List<Long> ids) {
+        LambdaQueryWrapper<LearningRecords> lambdaQueryWrapper = new LambdaQueryWrapper<>();
+        lambdaQueryWrapper.in(LearningRecords::getId, ids);
+        List<LearningRecords> list = this.list(lambdaQueryWrapper);
+        //把即将要删除的记录状态调成0
+        for (LearningRecords learningRecords : list) {
+            learningRecords.setStatus("0");
+        }
+        this.updateBatchById(list);
+//        System.out.println(this.updateBatchById(list));
+//        this.remove(lambdaQueryWrapper);
+        return "删除成功";
+    }
+
+    @Override
+    public List<LearningRecordsVo> getAll(String userId){
+        //格式化时间
+        //格式化时间
+        String strDateFormat = "yyyy-MM-dd HH:mm:ss";
+        SimpleDateFormat sdf = new SimpleDateFormat(strDateFormat);
+
+        List<LearningRecordsVo> list = new ArrayList<>();
+        //将学习记录实体转成学习记录Vo实体
+        LambdaQueryWrapper<LearningRecords> lambdaQueryWrapper1 = new LambdaQueryWrapper<>();
+        lambdaQueryWrapper1
+                .orderByDesc(LearningRecords::getAccessTime)
+                .eq(LearningRecords::getUserId, userId)
+                .eq(LearningRecords::getStatus, "1");
+        System.out.println(this.list(lambdaQueryWrapper1));
+        //如果为空-------------------?????
+        for (LearningRecords learningRecords : this.list(lambdaQueryWrapper1)) {
+            //查找该用户的学习记录
+//            if (learningRecords.getUserId().equals(userId) && learningRecords.getStatus().equals("1")){
+                LearningRecordsVo learningRecordsVo = new LearningRecordsVo();//好像可以拿出去-----------??
+                BeanUtils.copyProperties(learningRecords,learningRecordsVo);//从多传到少(缺少人数,和资源名称,时间需要转格式)
+                //添加时间
+                //LocalDateTime转Date
+                Date date = Date.from(learningRecords.getAccessTime().atZone(ZoneId.systemDefault()).toInstant());
+                learningRecordsVo.setTime(sdf.format(date));
+                LambdaQueryWrapper<LearningRecords> lambdaQueryWrapper = new LambdaQueryWrapper<>();
+                lambdaQueryWrapper.eq(LearningRecords::getCoursesId, learningRecords.getCoursesId());
+//            System.out.println(learningRecords.getResourceId());
+//            System.out.println("1");
+
+            //添加课程名称
+            switch (learningRecords.getType()) {
+                case "4": //如果是资源学习
+                    learningRecordsVo.setCoursesName("学习资源");//设置名称 --------------------------------------------待完善
+
+                    break;
+                case "3": //如果是知识点学习记录
+                    learningRecordsVo.setCoursesName(knowledgePointService.getById(learningRecords.getCoursesId()).getName());
+
+                    break;
+                case "2": //如果是章节学习记录
+                    learningRecordsVo.setCoursesName(chapterService.getById(learningRecords.getCoursesId()).getName());
+
+                    break;
+                case "1": //如果是课程学习记录
+                    learningRecordsVo.setCoursesName(coursesService.getById(learningRecords.getCoursesId()).getName());
+                    break;
+            }
+                //添加观看人数
+                //统计记录表里有多少人查看过这门资源
+                long count = this.count(lambdaQueryWrapper);
+                System.out.println(count);
+                learningRecordsVo.setNumber(count);
+                //把整合后该用户的学习记录添加到List里
+                list.add(learningRecordsVo);
+//            }
+        }
+        System.out.println(list);
+        return list;
+    }
+
+    /**
+     * 根据用户id和学习资源id来判断记录是否存在
+     * @param learningRecords
+     * @return
+     */
+    @Override
+    public String saveRecords(LearningRecords learningRecords) {
+        String userId = learningRecords.getUserId();
+        String coursesId = learningRecords.getCoursesId();
+        System.out.println("学习记录:"+learningRecords);
+        //查找该用户是否观看过该学习资源
+        LambdaQueryWrapper<LearningRecords> lambdaQueryWrapper = new LambdaQueryWrapper<>();
+        lambdaQueryWrapper
+                .eq(LearningRecords::getUserId, userId)
+                .eq(LearningRecords::getCoursesId, coursesId)
+                .eq(LearningRecords::getType, learningRecords.getType());
+        long count = this.count(lambdaQueryWrapper);
+        System.out.println("数据库："+count);
+        learningRecords.setStatus("1");//将该记录的状态设置为1
+        //更新观看时间
+        learningRecords.setAccessTime(LocalDateTime.now());
+        //设置默认封面
+        if (learningRecords.getContent() == null || learningRecords.getContent().equals("")){
+            learningRecords.setContent("https://teaching-edu123.oss-cn-beijing.aliyuncs.com/Borovets_ZH-CN5914681811_UHD.jpg");
+        }
+//        //添加记录封面
+//        switch (learningRecords.getType()) {
+//            case "4": //如果是资源学习
+//                learningRecords.setContent(learningResourceService.getById(learningRecords.getCoursesId()).getContent());//设置封面
+//                break;
+//            case "3": //如果是知识点学习记录
+//                learningRecords.setContent(knowledgePointService.getById(learningRecords.getCoursesId()).getContent());//设置封面
+//
+//                break;
+//            case "2": //如果是章节学习记录
+//                learningRecords.setContent(chapterService.getById(learningRecords.getCoursesId()).getContent());//设置封面
+//
+//                break;
+//            case "1": //如果是课程学习记录
+//                learningRecords.setContent(coursesService.getById(learningRecords.getCoursesId()).getImg());//设置封面
+//                break;
+//        }
+        if (count == 0){//如果没有就新增并记录学习方式是打开还是下载
+            //根据传上来的type设置
+//            learningRecords.setType(learningRecords.getType());
+            this.save(learningRecords);
+            return "添加成功";
+        }else {//有就修改记录,更新学习方式
+            LearningRecords one = this.getOne(lambdaQueryWrapper);
+            System.out.println(one);
+            learningRecords.setId(one.getId());//找到该条记录的id并赋值给本次观看记录
+            if ( one.getLearningMethod1() != null && one.getLearningMethod1().equals("1")){
+                learningRecords.setLearningMethod1(one.getLearningMethod1());
+            }
+            if (one.getLearningMethod2() != null && one.getLearningMethod2().equals("1")){
+                learningRecords.setLearningMethod2(one.getLearningMethod2());
+            }
+            this.updateById(learningRecords);
+            return "修改成功";
+        }
+    }
+
+
+}

src/main/java/com/teaching/backend/service/know/IknowService.java

@@ -1,8 +1,7 @@
-package com.teaching.service;
+package com.teaching.backend.service.know;
 
 import com.baomidou.mybatisplus.extension.service.IService;
-import com.teaching.model.entity.Know;
-import org.springframework.stereotype.Service;
+import com.teaching.backend.model.entity.know.Know;
 
 
 public interface IknowService extends IService<Know> {

src/main/java/com/teaching/backend/service/records/LearningRecordsService.java

@@ -0,0 +1,19 @@
+package com.teaching.backend.service.records;
+
+import com.baomidou.mybatisplus.core.metadata.IPage;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.baomidou.mybatisplus.extension.service.IService;
+import com.teaching.backend.model.entity.records.LearningRecords;
+import com.teaching.backend.model.vo.records.LearningRecordsVo;
+
+
+import java.util.List;
+
+public interface LearningRecordsService extends IService<LearningRecords> {
+    public List<LearningRecordsVo> getAll(String username);
+    public String saveRecords(LearningRecords learningRecords);
+    IPage<LearningRecords> selectPageList(Page<LearningRecords> page, LearningRecords model);
+
+    public String delete(List<Long> ids);
+
+}

src/main/java/com/teaching/service/impl/IknowServiceimpl.java

@@ -1,13 +0,0 @@
-package com.teaching.service.impl;
-
-import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
-import com.teaching.mapper.KnowMapper;
-import com.teaching.model.entity.Know;
-import com.teaching.service.IknowService;
-import org.springframework.stereotype.Service;
-
-@Service
-public class IknowServiceimpl extends ServiceImpl<KnowMapper,Know> implements IknowServic
-        e {
-
-}