blame | 历史 | 补丁 | 提交 | 提交对比 | ignore whitespace
fuliqi
2024-07-04 c0792dcbc27d0580d9ed0e7aa3cf34c96c651840 
 src/main/java/com/ycl/jxkg/service/impl/EducationResourceServiceImpl.java


@@ -1,21 +1,26 @@


package com.ycl.jxkg.service.impl;




import com.alibaba.fastjson.JSON;


import com.github.benmanes.caffeine.cache.Cache;


import com.github.pagehelper.PageHelper;


import com.github.pagehelper.PageInfo;


import com.ycl.jxkg.base.Result;


import com.ycl.jxkg.context.WebContext;


import com.ycl.jxkg.domain.entity.EducationResource;


import com.ycl.jxkg.domain.entity.Subject;


import com.ycl.jxkg.domain.entity.StudyRecord;


import com.ycl.jxkg.domain.vo.admin.education.EducationResourceVO;


import com.ycl.jxkg.domain.vo.student.education.StudentOnlineVO;


import com.ycl.jxkg.mapper.ClassesUserMapper;


import com.ycl.jxkg.mapper.EducationResourceMapper;


import com.ycl.jxkg.mapper.SubjectMapper;


import com.ycl.jxkg.service.EducationResourceService;


import lombok.RequiredArgsConstructor;


import org.springframework.beans.BeanUtils;


import org.springframework.beans.factory.annotation.Autowired;


import org.springframework.stereotype.Service;


import org.springframework.util.CollectionUtils;




import java.util.ArrayList;


import java.util.Date;


import java.util.List;


import java.util.Objects;


@@ -30,7 +35,10 @@




    private final EducationResourceMapper mapper;


    private final SubjectMapper subjectMapper;




    private final WebContext webContext;


    private final ClassesUserMapper classesUserMapper;


    @Autowired


    private Cache<String, Object> caffeineCache;


    @Override


    public Result add(EducationResourceVO form) {


        EducationResource educationResource = new EducationResource();


@@ -41,6 +49,7 @@


        }


        educationResource.setCreateTime(new Date());


        educationResource.setUpdateTime(new Date());


        educationResource.setCreateUser(webContext.getCurrentUser().getId());


        mapper.add(educationResource);


        return Result.ok("添加成功");


    }


@@ -80,9 +89,17 @@


    }




    @Override


    public Result byType(StudentOnlineVO query) {


    public Result studentPage(EducationResourceVO query) {


        Integer id = webContext.getCurrentUser().getId();


        List<Integer> classes = classesUserMapper.getClassesByUserId(id);


        if (CollectionUtils.isEmpty(classes)) {


            //学生没有班级


            List<EducationResourceVO> list = new ArrayList<>();


            return Result.ok(list).put("total", 0);


        }


        query.setClassIds(classes);


        PageInfo<EducationResourceVO> page = PageHelper.startPage(query.getPageNum(), query.getPageSize()).doSelectPageInfo(() ->


                mapper.byType(query));


                mapper.studentPage(query));


        page.getList().stream().forEach(item -> {


            item.setContentUrl(JSON.parseObject(item.getContentUrlString(), EducationResourceVO.UploadFile.class));


            item.setAttachment(JSON.parseArray(item.getAttachmentString(), EducationResourceVO.UploadFile.class));


@@ -95,4 +112,27 @@


        List<Subject> subjects = subjectMapper.allSubject();


        return Result.ok(subjects);


    }


    //记录视频时长


    @Override


    public Result recordTime(Integer userId) {


        if (userId ==null){


            throw new RuntimeException("用户id为空");


        }


        StudyRecord studyRecord = (StudyRecord) caffeineCache.getIfPresent("STUDENT_"+userId);


        if (studyRecord != null) {


            //存在缓存


            Date lastTime = studyRecord.getLastTime();


            Date now = new Date();


            studyRecord.setStudyTime(studyRecord.getStudyTime()+(now.getTime()-lastTime.getTime())/1000);


            studyRecord.setLastTime(now);


        }else {


            //不存在缓存


            studyRecord = new StudyRecord();


            studyRecord.setStudentId(userId);


            studyRecord.setStudyTime(0L);


            studyRecord.setLastTime(new Date());


        }


        caffeineCache.put("STUDENT_" + userId, studyRecord);


        return Result.ok();


    }


}