youhang kecheng信息

src/main/java/com/teaching/backend/common/PageRequest.java

@@ -0,0 +1,32 @@
+package com.teaching.backend.common;
+
+
+import com.teaching.backend.constant.CommonConstant;
+import lombok.Data;
+
+/**
+ * 分页请求
+ */
+@Data
+public class PageRequest {
+
+    /**
+     * 当前页号
+     */
+    private int current = 1;
+
+    /**
+     * 页面大小
+     */
+    private int pageSize = 10;
+
+    /**
+     * 排序字段
+     */
+    private String sortField;
+
+    /**
+     * 排序顺序（默认升序）
+     */
+    private String sortOrder = CommonConstant.SORT_ORDER_ASC;
+}

src/main/java/com/teaching/backend/constant/CommonConstant.java

@@ -0,0 +1,18 @@
+package com.teaching.backend.constant;
+
+/**
+ * 通用常量
+ */
+public interface CommonConstant {
+
+    /**
+     * 升序
+     */
+    String SORT_ORDER_ASC = "ascend";
+
+    /**
+     * 降序
+     */
+    String SORT_ORDER_DESC = " descend";
+
+}

src/main/java/com/teaching/backend/controller/favour/SeCourseFavourController.java

@@ -1,5 +1,7 @@
 package com.teaching.backend.controller.favour;
 
+import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import com.teaching.backend.common.BaseResponse;
 import com.teaching.backend.common.ErrorCode;
 import com.teaching.backend.common.ResultUtils;
@@ -9,9 +11,17 @@ import com.teaching.backend.exception.BusinessException;
 import com.teaching.backend.model.dto.favour.courseFavour.CourseFavourAddRequest;
 import com.teaching.backend.model.dto.favour.courseFavour.CourseFavourAllRequest;
 import com.teaching.backend.model.dto.favour.courseFavour.CourseFavourListRequest;
+import com.teaching.backend.model.dto.favour.courseFavour.CourseFavourQueryRequest;
+import com.teaching.backend.model.entity.courses.Courses;
+import com.teaching.backend.model.entity.favour.SeCourseFavour;
+import com.teaching.backend.model.vo.CoursesVO;
+import com.teaching.backend.model.vo.favour.CourseFavourDetailVO;
+import com.teaching.backend.service.courses.ICoursesService;
 import com.teaching.backend.service.favour.SeCourseFavourService;
 import lombok.extern.slf4j.Slf4j;
 import org.apache.commons.lang3.StringUtils;
+import org.springframework.beans.BeanUtils;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestMapping;
@@ -106,5 +116,23 @@ public class SeCourseFavourController {
         return ResultUtils.success(result);
     }
 
+    /**
+     * 分页获取列表（仅管理员）
+     *
+     * @return
+     */
+    @PostMapping("/list/page")
+    public BaseResponse<Page<CourseFavourDetailVO>> listPostByPage(@RequestBody CourseFavourQueryRequest courseFavourQueryRequest) {
+        long current = courseFavourQueryRequest.getCurrent();
+        long size = courseFavourQueryRequest.getPageSize();
+        String userId = courseFavourQueryRequest.getUserId();
+        List<String> ids = seCourseFavourService.courseList(userId);
+        QueryWrapper<Courses> courseQueryWrapper = new QueryWrapper<>();
+        courseQueryWrapper.in("id", ids);
+        Page<CourseFavourDetailVO> courseFavourDetailVOPage = seCourseFavourService.listCourseFavourByPage(new Page<>(current, size), courseQueryWrapper);
+
+        return ResultUtils.success(courseFavourDetailVOPage);
+    }
+
 
 }

src/main/java/com/teaching/backend/model/dto/favour/courseFavour/CourseFavourQueryRequest.java

@@ -0,0 +1,22 @@
+package com.teaching.backend.model.dto.favour.courseFavour;
+
+import com.teaching.backend.common.PageRequest;
+import com.teaching.backend.constant.CommonConstant;
+import lombok.Data;
+
+import java.io.Serializable;
+
+/**
+ * 课程点赞请求
+ */
+@Data
+public class CourseFavourQueryRequest extends PageRequest implements Serializable {
+
+    /**
+     * 用户 id
+     */
+    private String userId;
+
+
+    private static final long serialVersionUID = 1L;
+}

src/main/java/com/teaching/backend/model/vo/favour/CourseFavourDetailVO.java

@@ -0,0 +1,72 @@
+package com.teaching.backend.model.vo.favour;
+
+import com.baomidou.mybatisplus.annotation.TableName;
+import com.teaching.backend.model.entity.courses.Courses;
+import io.swagger.annotations.ApiModelProperty;
+import lombok.Data;
+import org.springframework.beans.BeanUtils;
+
+import java.math.BigDecimal;
+
+/**
+ * @Author:youhang
+ * @Date:2024-06-03-11:18
+ * @Description:
+ */
+@TableName(value = "courses")
+@Data
+public class CourseFavourDetailVO {
+
+    /**
+     * 内部编号
+     */
+    private String id;
+
+    /**
+     * 课程封面
+     */
+    private String img;
+
+
+    /**
+     * 课程名称
+     */
+    private String name;
+
+    /**
+     * 教师id
+     */
+    @ApiModelProperty("教师id")
+    private String teacher;
+
+
+    /**
+     * 课程学分
+     */
+    @ApiModelProperty(value = "课程学分", required = true)
+    private BigDecimal credit;
+
+    /**
+     * 课程学时
+     */
+    @ApiModelProperty(value = "课程学时", required = true)
+    private Integer classhours;
+
+
+    /**
+     * 对象转包装类
+     *
+     * @param course
+     * @return
+     */
+    public static CourseFavourDetailVO objToVo(Courses course) {
+        if (course == null) {
+            return null;
+        }
+        CourseFavourDetailVO courseFavourDetailVO = new CourseFavourDetailVO();
+        BeanUtils.copyProperties(course, courseFavourDetailVO);
+        return courseFavourDetailVO;
+    }
+
+
+}

src/main/java/com/teaching/backend/service/favour/SeCourseFavourService.java

@@ -1,7 +1,16 @@
 package com.teaching.backend.service.favour;
 
+import com.baomidou.mybatisplus.core.conditions.Wrapper;
+import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
+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.common.BaseResponse;
+import com.teaching.backend.model.dto.favour.courseFavour.CourseFavourQueryRequest;
+import com.teaching.backend.model.entity.courses.Courses;
 import com.teaching.backend.model.entity.favour.SeCourseFavour;
+import com.teaching.backend.model.vo.favour.CourseFavourDetailVO;
+import org.springframework.web.bind.annotation.RequestBody;
 
 import java.util.List;
 
@@ -48,4 +57,13 @@ public interface SeCourseFavourService extends IService<SeCourseFavour> {
      */
     List<String> courseList(String userId);
 
+    /**
+     * 某个用户课程列表全部信息
+     *
+     * @param page
+     * @param queryWrapper
+     * @return
+     */
+    public Page<CourseFavourDetailVO> listCourseFavourByPage(Page<Courses> page, Wrapper<Courses> queryWrapper);
+
 }

src/main/java/com/teaching/backend/service/impl/favour/SeCourseFavourServiceImpl.java

@@ -1,21 +1,37 @@
 package com.teaching.backend.service.impl.favour;
 
+import cn.hutool.core.collection.CollUtil;
+import com.baomidou.mybatisplus.core.conditions.Wrapper;
 import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
+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.common.BaseResponse;
 import com.teaching.backend.common.ErrorCode;
+import com.teaching.backend.common.ResultUtils;
 import com.teaching.backend.exception.BusinessException;
 import com.teaching.backend.mapper.favour.SeCourseFavourMapper;
+import com.teaching.backend.model.dto.favour.courseFavour.CourseFavourQueryRequest;
+import com.teaching.backend.model.entity.courses.Courses;
 import com.teaching.backend.model.entity.favour.SeCourseFavour;
 import com.teaching.backend.model.entity.favour.SeKnowFavour;
 import com.teaching.backend.model.entity.favour.SeResourceFavour;
 
+import com.teaching.backend.model.vo.CoursesVO;
+import com.teaching.backend.model.vo.favour.CourseFavourDetailVO;
+import com.teaching.backend.service.courses.ICoursesService;
 import com.teaching.backend.service.favour.SeCourseFavourService;
 import com.teaching.backend.service.favour.SeKnowFavourService;
 import com.teaching.backend.service.favour.SeResourceFavourService;
 
+import org.springframework.beans.BeanUtils;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
 
 import javax.annotation.Resource;
+import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.locks.Lock;
 import java.util.concurrent.locks.ReentrantLock;
@@ -37,6 +53,9 @@ public class SeCourseFavourServiceImpl extends ServiceImpl<SeCourseFavourMapper,
     @Resource
     SeKnowFavourService seKnowFavourService;
 
+    @Autowired
+    ICoursesService coursesService;
+
 
     @Override
     public boolean doCourseFavour(String courseId, String userId) {
@@ -119,5 +138,25 @@ public class SeCourseFavourServiceImpl extends ServiceImpl<SeCourseFavourMapper,
         return list;
     }
 
+    @Override
+    public Page<CourseFavourDetailVO> listCourseFavourByPage(Page<Courses> page, Wrapper<Courses> queryWrapper) {
+        Page<Courses> coursePage = coursesService.page(page, queryWrapper);
+        Page<CourseFavourDetailVO> courseFavourVOPage = new Page<>(coursePage.getCurrent(), coursePage.getSize(), coursePage.getTotal());
+        List<Courses> courseFavourList = coursePage.getRecords();
+        //若数据为空，直接返回
+        if (CollUtil.isEmpty(courseFavourList)) {
+            return courseFavourVOPage;
+        }
+        //过滤字段
+        List<CourseFavourDetailVO> courseFavourDetailVOList = new ArrayList<>();
+        for (int i = 0; i < courseFavourList.size(); i++) {
+            CourseFavourDetailVO courseFavourDetailVO = new CourseFavourDetailVO();
+            BeanUtils.copyProperties(courseFavourList.get(i), courseFavourDetailVO);
+            courseFavourDetailVOList.add(courseFavourDetailVO);
+        }
+        courseFavourVOPage.setRecords(courseFavourDetailVOList);
+        return courseFavourVOPage;
+    }
+
 
 }

src/main/resources/application.properties

@@ -2,3 +2,4 @@ teaching-backend.img.path=C:\\Users\\jian\\Desktop\\cc\\teaching-backend\\src\\m
 teaching-backend.video.path=C:\\Users\\jian\\Desktop\\cc\\teaching-backend\\src\\main\\resources\\static\\video\\
 spring.servlet.multipart.max-file-size=10MB
 spring.servlet.multipart.max-request-size=10MB
+

src/main/resources/application.yml

@@ -19,3 +19,14 @@ mybatis:
     - classpath*:com/**/mapper/*.xml
 
 
+# 接口文档配置
+knife4j:
+  enable: true
+  openapi:
+    title: "111"
+    version: 1.0
+    group:
+      default:
+        api-rule: package
+        api-rule-resources:
+          - com.teaching.backend.controller