课程（教师）增删改查，删除功能待完善

课程目标增删改，查需求不明确，待定

pom.xml

@@ -76,6 +76,12 @@
             <groupId>org.apache.commons</groupId>
             <artifactId>commons-lang3</artifactId>
         </dependency>
+
+        <dependency>
+            <groupId>cn.hutool</groupId>
+            <artifactId>hutool-all</artifactId>
+            <version>5.8.11</version>
+        </dependency>
     </dependencies>
 
 

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

@@ -14,6 +14,8 @@ public enum ErrorCode {
     NO_AUTH_ERROR(40101, "无权限"),
     NOT_FOUND_ERROR(40400, "请求数据不存在"),
     FORBIDDEN_ERROR(40300, "禁止访问"),
+
+    PARAMS_ILLEGAL(42000, "请求参数违法"),
     SYSTEM_ERROR(50000, "系统内部异常"),
     OPERATION_ERROR(50001, "操作失败");
 

src/main/java/com/teaching/backend/controller/courses/CourseObjectivesController.java

@@ -0,0 +1,64 @@
+package com.teaching.backend.controller.courses;
+
+
+import cn.hutool.core.bean.BeanUtil;
+import com.teaching.backend.common.BaseResponse;
+import com.teaching.backend.common.ResultUtils;
+import com.teaching.backend.mapper.courses.CourseObjectivesMapper;
+import com.teaching.backend.model.dto.courses.CourseObjectivesDTO;
+import com.teaching.backend.model.entity.courses.CourseObjectives;
+import com.teaching.backend.service.courses.ICourseObjectivesService;
+import io.swagger.annotations.Api;
+import io.swagger.annotations.ApiOperation;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.*;
+
+import java.time.LocalDateTime;
+
+/**
+ * <p>
+ *  前端控制器
+ * </p>
+ *
+ * @author zjh
+ * @since 2024-05-31
+ */
+@Api(tags = "项目目标管理接口")
+@RestController
+@RequestMapping("/course_objectives")
+public class CourseObjectivesController {
+
+
+    @Autowired
+    ICourseObjectivesService courseObjectivesService;
+
+    @Autowired
+    CourseObjectivesMapper courseObjectivesMapper;
+
+    @ApiOperation("新增分项目标-默认第一个必须添加思政目标")
+    @PostMapping("/addobjectives")
+    public BaseResponse<String> saveCourseObjectives(@RequestBody CourseObjectivesDTO courseObjectivesDTO){
+        String data = courseObjectivesService.addObjectives(courseObjectivesDTO);
+        return ResultUtils.success(data);
+    }
+
+    @ApiOperation("删除分项目标-只能最后一个删除思政目标")
+    @DeleteMapping("/{id}")
+    public BaseResponse<String> deleteCourseObjectivesByIds(@PathVariable String id){
+        String data = courseObjectivesService.deleteObjectives(id);
+        return ResultUtils.success(data);
+    }
+
+    @ApiOperation("编辑分项目标")
+    @PutMapping
+    public BaseResponse<String> updateCourseObjectives(@RequestBody CourseObjectivesDTO courseObjectivesDTO){
+        String pid = courseObjectivesDTO.getPid();
+        CourseObjectives courseObjectives = courseObjectivesMapper.selectById(pid);
+        BeanUtil.copyProperties(courseObjectivesDTO, courseObjectives);
+        courseObjectives.setUpdateTime(LocalDateTime.now());
+        courseObjectivesService.updateById(courseObjectives);
+        return ResultUtils.success("编辑成功");
+    }
+
+
+}

src/main/java/com/teaching/backend/controller/courses/CoursesController.java

@@ -0,0 +1,81 @@
+package com.teaching.backend.controller.courses;
+
+
+import cn.hutool.core.bean.BeanUtil;
+import com.teaching.backend.common.BaseResponse;
+import com.teaching.backend.common.ResultUtils;
+import com.teaching.backend.model.dto.courses.CoursesDTO;
+import com.teaching.backend.model.dto.courses.PageDTO;
+import com.teaching.backend.model.entity.courses.Courses;
+import com.teaching.backend.model.query.CourseQuery;
+import com.teaching.backend.model.vo.CoursesVO;
+import com.teaching.backend.service.courses.ICoursesService;
+import io.swagger.annotations.Api;
+import io.swagger.annotations.ApiOperation;
+import org.springframework.beans.BeanUtils;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+/**
+ * <p>
+ *  前端控制器
+ * </p>
+ *
+ * @author zjh
+ * @since 2024-05-30
+ */
+@Api(tags = "教师管理课程接口")
+@RestController
+@RequestMapping("/coursesteacher")
+public class CoursesController {
+
+    @Autowired
+    ICoursesService coursesService;
+
+    @ApiOperation("新增课程--同步新增课程的总体目标")
+    @PostMapping("/addcourse")
+    public BaseResponse<String> saveCourse(@RequestBody CoursesDTO coursesDTO, @RequestParam String teacherId){
+        String data = coursesService.saveCourseWithObjective(coursesDTO, teacherId);
+        return ResultUtils.success(data);
+    }
+
+
+    @ApiOperation("查询课程列表")
+    @GetMapping("/page")
+    public BaseResponse<PageDTO<CoursesVO>> getCourses(CourseQuery courseQuery, @RequestParam String teacherId){
+        PageDTO<CoursesVO> coursesList = coursesService.queryCourses(courseQuery,teacherId);
+        return ResultUtils.success(coursesList);
+    }
+
+    @ApiOperation("根据id查询课程")
+    @GetMapping("/{id}")
+    public BaseResponse<CoursesDTO> getByIdCourse(@PathVariable String id){
+        Courses course = coursesService.getById(id);
+        CoursesDTO coursesDTO = new CoursesDTO();
+        BeanUtils.copyProperties(course,coursesDTO);
+        return ResultUtils.success(coursesDTO);
+    }
+
+    @ApiOperation("根据id修改课程")
+    @PutMapping
+    public BaseResponse<String> editCourse(@RequestBody CoursesDTO coursesDTO){
+        String courseId = coursesDTO.getId();
+        Courses course = coursesService.getById(courseId);
+        BeanUtil.copyProperties(coursesDTO, course);
+        coursesService.updateById(course);
+        return ResultUtils.success("编辑成功");
+    }
+
+    //TODO:删除功能暂未完善，数据表缺失
+    @ApiOperation("根据ids批量删除课程")
+    @DeleteMapping("/{ids}")
+    public BaseResponse<String> deleteCourses(@PathVariable List<String> ids){
+        System.out.println(ids);
+        coursesService.removeBatchByIds(ids);
+        return ResultUtils.success("删除成功");
+    }
+
+
+}

src/main/java/com/teaching/backend/mapper/courses/CourseObjectivesMapper.java

@@ -0,0 +1,16 @@
+package com.teaching.backend.mapper.courses;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.teaching.backend.model.entity.courses.CourseObjectives;
+
+/**
+ * <p>
+ *  Mapper 接口
+ * </p>
+ *
+ * @author zjh
+ * @since 2024-05-31
+ */
+public interface CourseObjectivesMapper extends BaseMapper<CourseObjectives> {
+
+}

src/main/java/com/teaching/backend/mapper/courses/CoursesMapper.java

@@ -0,0 +1,16 @@
+package com.teaching.backend.mapper.courses;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.teaching.backend.model.entity.courses.Courses;
+
+/**
+ * <p>
+ *  Mapper 接口
+ * </p>
+ *
+ * @author zjh
+ * @since 2024-05-30
+ */
+public interface CoursesMapper extends BaseMapper<Courses> {
+
+}

src/main/java/com/teaching/backend/model/dto/courses/CourseObjectivesDTO.java

@@ -0,0 +1,39 @@
+package com.teaching.backend.model.dto.courses;
+
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+import lombok.Data;
+
+@Data
+@ApiModel(description = "分项目标参数实体")
+public class CourseObjectivesDTO {
+    /**
+     * 内部编号
+     */
+    @ApiModelProperty("id")
+    private String id;
+
+    /**
+     * 分项目标名称
+     */
+    @ApiModelProperty(value = "分项目标名称",required = true)
+    private String name;
+    /**
+     * 分项目标类型 思政1 知识2、素质3、价值4
+     */
+    @ApiModelProperty(value = "分项目标类型  思政1 知识2、素质3、价值4",required = true)
+    private String type;
+    /**
+     * 分项目标描述
+     */
+    @ApiModelProperty(value = "分项目标内容",required = true)
+    private String content;
+
+    /**
+     * 父节点
+     */
+    @ApiModelProperty(value = "父节点pid",required = true)
+    private String pid;
+
+
+}

src/main/java/com/teaching/backend/model/dto/courses/CoursesDTO.java

@@ -0,0 +1,100 @@
+package com.teaching.backend.model.dto.courses;
+
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+import lombok.Data;
+
+import java.math.BigDecimal;
+import java.time.LocalDateTime;
+
+@Data
+@ApiModel(description = "教师创建课程参数实体")
+public class CoursesDTO {
+    /**
+     * 内部编号
+     */
+    @ApiModelProperty("id")
+    private String id;
+    /**
+     * 创建人  教师id
+     */
+    @ApiModelProperty("负责教师")
+    private String teacher;
+    /**
+     * 创建日期
+     */
+    @ApiModelProperty("创建日期")
+    private LocalDateTime createTime;
+    /**
+     * 课程封面
+     */
+    @ApiModelProperty("图片")
+    private String img;
+
+    /**
+     * 课程类别  专业教育 通识教育
+     */
+    @ApiModelProperty(value = "课程类别：专业教育 通识教育",required = true)
+    private String category;
+
+    /**
+     * 课程性质  必修选修任修
+     */
+    @ApiModelProperty(value = "课程性质：必修，选修，任修",required = true)
+    private String nature;
+
+    /**
+     * 课程名称
+     */
+    @ApiModelProperty(value = "课程名称",required = true)
+    private String name;
+
+    /**
+     * 课程编码
+     */
+    @ApiModelProperty(value = "课程编码",required = true)
+    private String code;
+
+
+    /**
+     * 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;
+
+    /**
+     * 考核类型  考试 考查
+     */
+    @ApiModelProperty(value = "考核类型：考试 考查",required = true)
+    private String assessmenttype;
+
+    /**
+     * 考核方式  开卷 闭卷 其他
+     */
+    @ApiModelProperty(value = "考核方式：开卷 闭卷 其他",required = true)
+    private String assessmentway;
+
+    /**
+     * 教学方法
+     */
+    @ApiModelProperty("教学方法")
+    private String teachermethod;
+
+    /**
+     * 教学方式
+     */
+    @ApiModelProperty("教学方式")
+    private String teacherway;
+
+    /**
+     * 课程简介
+     */
+    @ApiModelProperty("课程简介")
+    private String description;
+}

src/main/java/com/teaching/backend/model/dto/courses/PageDTO.java

@@ -0,0 +1,60 @@
+package com.teaching.backend.model.dto.courses;
+
+import cn.hutool.core.bean.BeanUtil;
+import cn.hutool.core.collection.CollUtil;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+import lombok.Data;
+
+import java.util.Collections;
+import java.util.List;
+import java.util.function.Function;
+import java.util.stream.Collectors;
+
+@Data
+@ApiModel(description = "分页结果")
+public class PageDTO<T> {
+    @ApiModelProperty("总条数")
+    private Long total;
+    @ApiModelProperty("总页数")
+    private Long pages;
+    @ApiModelProperty("集合")
+    private List<T> list;
+
+    public static <PO, VO> PageDTO<VO> of(Page<PO> p, Class<VO> clazz){
+        PageDTO<VO> dto = new PageDTO<>();
+        // 1.总条数
+        dto.setTotal(p.getTotal());
+        // 2.总页数
+        dto.setPages(p.getPages());
+        // 3.当前页数据
+        List<PO> records = p.getRecords();
+        if (CollUtil.isEmpty(records)) {
+            dto.setList(Collections.emptyList());
+            return dto;
+        }
+        // 4.拷贝user的VO
+        dto.setList(BeanUtil.copyToList(records, clazz));
+        // 5.返回
+        return dto;
+    }
+
+    public static <PO, VO> PageDTO<VO> of(Page<PO> p, Function<PO, VO> convertor){
+        PageDTO<VO> dto = new PageDTO<>();
+        // 1.总条数
+        dto.setTotal(p.getTotal());
+        // 2.总页数
+        dto.setPages(p.getPages());
+        // 3.当前页数据
+        List<PO> records = p.getRecords();
+        if (CollUtil.isEmpty(records)) {
+            dto.setList(Collections.emptyList());
+            return dto;
+        }
+        // 4.拷贝user的VO
+        dto.setList(records.stream().map(convertor).collect(Collectors.toList()));
+        // 5.返回
+        return dto;
+    }
+}

src/main/java/com/teaching/backend/model/entity/courses/CourseObjectives.java

@@ -0,0 +1,68 @@
+package com.teaching.backend.model.entity.courses;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import lombok.experimental.Accessors;
+
+import java.io.Serializable;
+import java.time.LocalDateTime;
+
+/**
+ * <p>
+ * 
+ * </p>
+ *
+ * @author zjh
+ * @since 2024-05-31
+ */
+@Data
+@EqualsAndHashCode(callSuper = false)
+@Accessors(chain = true)
+@TableName("course_objectives")
+@ApiModel(value="CourseObjectives对象", description="")
+public class CourseObjectives implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+
+    @ApiModelProperty(value = "内部编号")
+    @TableId(value = "id", type = IdType.ASSIGN_UUID)
+    private String id;
+
+    @ApiModelProperty(value = "创建日期")
+    private LocalDateTime createTime;
+
+
+    @ApiModelProperty(value = "更新日期")
+    private LocalDateTime updateTime;
+
+    @ApiModelProperty(value = "父级节点")
+    private String pid;
+
+    @ApiModelProperty(value = "是否有子节点")
+    private String hasChild;
+
+    @ApiModelProperty(value = "目标名称")
+    private String name;
+
+    @ApiModelProperty(value = "目标类型")
+    private String type;
+
+    @ApiModelProperty(value = "目标内容")
+    private String content;
+
+    @ApiModelProperty(value = "课程id")
+    private String courseid;
+
+    @ApiModelProperty(value = "毕业要求id")
+    private String requireid;
+
+    @ApiModelProperty(value = "毕业要求")
+    private String temp;
+
+
+}

src/main/java/com/teaching/backend/model/entity/courses/Courses.java

@@ -0,0 +1,143 @@
+package com.teaching.backend.model.entity.courses;
+
+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.io.Serializable;
+import java.math.BigDecimal;
+import java.time.LocalDateTime;
+
+/**
+ * <p>
+ * 
+ * </p>
+ *
+ * @author zjh
+ * @since 2024-05-30
+ */
+@Data
+@EqualsAndHashCode(callSuper = false)
+@Accessors(chain = true)
+@TableName("courses")
+public class Courses implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+
+    /**
+     * 内部编号
+     */
+    @TableId(value = "id", type = IdType.ASSIGN_UUID)
+    private String id;
+
+
+    /**
+     * 创建日期
+     */
+    private LocalDateTime createTime;
+
+    /**
+     * 更新日期
+     */
+    private LocalDateTime updateTime;
+
+    /**
+     * 课程封面
+     */
+    private String img;
+
+    /**
+     * 课程类别
+     */
+    private String category;
+
+    /**
+     * 课程性质
+     */
+    private String nature;
+
+    /**
+     * 课程名称
+     */
+    private String name;
+
+    /**
+     * 课程编码
+     */
+    private String code;
+
+    /**
+     * 开课学期
+     */
+    private String semester;
+
+    /**
+     * 课程学分
+     */
+    private BigDecimal credit;
+
+    /**
+     * 课程学时
+     */
+    private Integer classhours;
+
+    /**
+     * 理论学时
+     */
+    private Integer theoryhours;
+
+    /**
+     * 实践学时
+     */
+    private Integer practicehours;
+
+    /**
+     * 实验学时
+     */
+    private Integer experimenthours;
+
+    /**
+     * 其他学时
+     */
+    private Integer otherhours;
+
+    /**
+     * 上课周数
+     */
+    private Integer weeks;
+
+    /**
+     * 考核类型
+     */
+    private String assessmenttype;
+
+    /**
+     * 考核方式
+     */
+    private String assessmentway;
+
+    /**
+     * 负责教师
+     */
+    private String teacher;
+
+    /**
+     * 教学方法
+     */
+    private String teachermethod;
+
+    /**
+     * 教学方式
+     */
+    private String teacherway;
+
+    /**
+     * 课程简介
+     */
+    private String description;
+
+
+}

src/main/java/com/teaching/backend/model/query/CourseQuery.java

@@ -0,0 +1,14 @@
+package com.teaching.backend.model.query;
+
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+
+@EqualsAndHashCode(callSuper = true)
+@Data
+@ApiModel(description = "课程查询条件实体")
+public class CourseQuery extends PageQuery {
+    @ApiModelProperty("课程名称关键字")
+    private String name;
+}

src/main/java/com/teaching/backend/model/query/PageQuery.java

@@ -0,0 +1,44 @@
+package com.teaching.backend.model.query;
+
+import cn.hutool.core.util.StrUtil;
+import com.baomidou.mybatisplus.core.metadata.OrderItem;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+import lombok.Data;
+
+@Data
+@ApiModel(description = "分页查询实体")
+public class PageQuery {
+    @ApiModelProperty("页码")
+    private Integer pageNo = 1;
+    @ApiModelProperty("页码")
+    private Integer pageSize = 10;
+    @ApiModelProperty("排序字段")
+    private String sortBy;
+    @ApiModelProperty("是否升序")
+    private Boolean isAsc = true;
+
+    public <T> Page<T> toMpPage(OrderItem ... items){
+        // 1.分页条件
+        Page<T> page = Page.of(pageNo, pageSize);
+        // 2.排序条件
+        if(StrUtil.isNotBlank(sortBy)){
+            // 不为空
+            page.addOrder(new OrderItem(sortBy, isAsc));
+        }else if(items != null){
+            // 为空，默认排序
+            page.addOrder(items);
+        }
+        return page;
+    }
+    public <T> Page<T> toMpPage(String defaultSortBy, Boolean defaultAsc){
+        return toMpPage(new OrderItem(defaultSortBy, defaultAsc));
+    }
+    public <T> Page<T> toMpPageDefaultSortByCreateTime(){
+        return toMpPage(new OrderItem("create_time", false));
+    }
+    public <T> Page<T> toMpPageDefaultSortByUpdateTime(){
+        return toMpPage(new OrderItem("update_time", false));
+    }
+}

src/main/java/com/teaching/backend/model/vo/CoursesVO.java

@@ -0,0 +1,48 @@
+package com.teaching.backend.model.vo;
+
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+import lombok.Data;
+
+import java.math.BigDecimal;
+
+@Data
+@ApiModel(description = "课程VO实体")
+public class CoursesVO {
+
+    /**
+     * 内部编号
+     */
+    @ApiModelProperty("id")
+    private String id;
+    /**
+     * 教师id
+     */
+    @ApiModelProperty("教师id")
+    private String teacher;
+    /**
+     * 课程封面
+     */
+    @ApiModelProperty("图片")
+    private String img;
+
+    /**
+     * 课程名称
+     */
+    @ApiModelProperty(value = "课程名称",required = true)
+    private String name;
+
+
+    /**
+     * 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;
+
+}

src/main/java/com/teaching/backend/service/courses/ICourseObjectivesService.java

@@ -0,0 +1,20 @@
+package com.teaching.backend.service.courses;
+
+import com.baomidou.mybatisplus.extension.service.IService;
+import com.teaching.backend.model.dto.courses.CourseObjectivesDTO;
+import com.teaching.backend.model.entity.courses.CourseObjectives;
+
+/**
+ * <p>
+ *  服务类
+ * </p>
+ *
+ * @author zjh
+ * @since 2024-05-31
+ */
+public interface ICourseObjectivesService extends IService<CourseObjectives> {
+
+    String addObjectives(CourseObjectivesDTO courseObjectivesDTO);
+
+    String deleteObjectives(String id);
+}

src/main/java/com/teaching/backend/service/courses/ICoursesService.java

@@ -0,0 +1,27 @@
+package com.teaching.backend.service.courses;
+
+
+import com.baomidou.mybatisplus.extension.service.IService;
+import com.teaching.backend.model.dto.courses.CoursesDTO;
+import com.teaching.backend.model.dto.courses.PageDTO;
+import com.teaching.backend.model.entity.courses.Courses;
+import com.teaching.backend.model.query.CourseQuery;
+import com.teaching.backend.model.vo.CoursesVO;
+
+
+/**
+ * <p>
+ *  服务类
+ * </p>
+ *
+ * @author zjh
+ * @since 2024-05-30
+ */
+public interface ICoursesService extends IService<Courses> {
+
+    String saveCourseWithObjective(CoursesDTO coursesDTO, String teacherId);
+
+    PageDTO<CoursesVO> queryCourses(CourseQuery courseQuery, String teacherId);
+
+
+}

src/main/java/com/teaching/backend/service/impl/courses/CourseObjectivesServiceImpl.java

@@ -0,0 +1,94 @@
+package com.teaching.backend.service.impl.courses;
+
+import cn.hutool.core.bean.BeanUtil;
+import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.teaching.backend.common.ErrorCode;
+import com.teaching.backend.exception.BusinessException;
+import com.teaching.backend.mapper.courses.CourseObjectivesMapper;
+import com.teaching.backend.model.dto.courses.CourseObjectivesDTO;
+import com.teaching.backend.model.entity.courses.CourseObjectives;
+import com.teaching.backend.service.courses.ICourseObjectivesService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.time.LocalDateTime;
+
+/**
+ * <p>
+ *  服务实现类
+ * </p>
+ *
+ * @author zjh
+ * @since 2024-05-31
+ */
+@Service
+public class CourseObjectivesServiceImpl extends ServiceImpl<CourseObjectivesMapper, CourseObjectives> implements ICourseObjectivesService {
+
+
+    @Autowired
+    CourseObjectivesMapper courseObjectivesMapper;
+
+    @Override
+    public String addObjectives(CourseObjectivesDTO courseObjectivesDTO) {
+        String pid = courseObjectivesDTO.getPid();
+        if(pid.equals(null)){
+            throw new BusinessException(ErrorCode.NOT_FOUND_ERROR,"pid父节点不能为空");
+        }
+        String hasChild = courseObjectivesMapper.selectById(pid).getHasChild();
+        String type = courseObjectivesDTO.getType();
+        if (hasChild.equals("0") && !type.equals("1")){
+            throw new BusinessException(ErrorCode.PARAMS_ILLEGAL,"请在添加完思政目标以后再添加此类型目标！");
+        }
+        //判断是否已经添加过思政目标
+        // TODO:思政目标能不能有多个？？
+        if (courseObjectivesDTO.getType().equals("1")){
+            LambdaQueryWrapper<CourseObjectives> queryWrapper = new LambdaQueryWrapper<>();
+            queryWrapper
+                    .eq(CourseObjectives::getPid, pid)
+                    .eq(CourseObjectives::getType, "1");
+            Long count = courseObjectivesMapper.selectCount(queryWrapper);
+            if (count>0){
+                throw new BusinessException(ErrorCode.OPERATION_ERROR,"思政目标已存在，禁止重复添加！");
+            }
+        }
+        //往表里面写分项目标
+        CourseObjectives courseObjectives = new CourseObjectives();
+        BeanUtil.copyProperties(courseObjectivesDTO,courseObjectives);
+        courseObjectives.setCreateTime(LocalDateTime.now());
+        courseObjectivesMapper.insert(courseObjectives);
+        //插入数据以后要把总体目标那边的haschild改成1
+        CourseObjectives objectives = courseObjectivesMapper.selectById(pid);
+        objectives.setHasChild("1");
+        courseObjectivesMapper.updateById(objectives);
+        return "添加成功";
+    }
+
+    @Override
+    public String deleteObjectives(String id) {
+
+        CourseObjectives courseObjectives = courseObjectivesMapper.selectById(id);
+        String type = courseObjectives.getType();
+        String pid = courseObjectives.getPid();
+        if (type.equals("1")){
+            LambdaQueryWrapper<CourseObjectives> queryWrapper = new LambdaQueryWrapper<>();
+            queryWrapper.eq(CourseObjectives::getPid, pid);
+            Long count = courseObjectivesMapper.selectCount(queryWrapper);
+            if (count==1){
+                courseObjectivesMapper.deleteById(id);
+                CourseObjectives courseObjectives1 = courseObjectivesMapper.selectById(pid);
+                courseObjectives1.setHasChild("0");
+                courseObjectivesMapper.updateById(courseObjectives1);
+                return "删除成功";
+            }
+            else
+            {
+                throw new BusinessException(ErrorCode.OPERATION_ERROR, "请删除其他类型的分目标后再来删除思政目标");
+            }
+        }
+        else {
+            courseObjectivesMapper.deleteById(id);
+            return "删除成功";
+        }
+    }
+}

src/main/java/com/teaching/backend/service/impl/courses/CoursesServiceImpl.java

@@ -0,0 +1,92 @@
+package com.teaching.backend.service.impl.courses;
+
+
+import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.teaching.backend.common.ErrorCode;
+import com.teaching.backend.exception.BusinessException;
+import com.teaching.backend.mapper.courses.CourseObjectivesMapper;
+import com.teaching.backend.mapper.courses.CoursesMapper;
+import com.teaching.backend.model.dto.courses.CoursesDTO;
+import com.teaching.backend.model.dto.courses.PageDTO;
+import com.teaching.backend.model.entity.courses.CourseObjectives;
+import com.teaching.backend.model.entity.courses.Courses;
+import com.teaching.backend.model.query.CourseQuery;
+import com.teaching.backend.model.vo.CoursesVO;
+import com.teaching.backend.service.courses.ICoursesService;
+import org.springframework.beans.BeanUtils;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.time.LocalDateTime;
+
+/**
+ * <p>
+ *  服务实现类
+ * </p>
+ *
+ * @author zjh
+ * @since 2024-05-30
+ */
+@Service
+public class CoursesServiceImpl extends ServiceImpl<CoursesMapper, Courses>implements ICoursesService {
+
+    @Autowired
+    CoursesMapper coursesMapper;
+
+    @Autowired
+    CourseObjectivesMapper courseObjectivesMapper;
+
+    @Override
+    @Transactional
+    public String saveCourseWithObjective(CoursesDTO coursesDTO, String teacherId) {
+        Courses courses = new Courses();
+        CourseObjectives courseObjectives = new CourseObjectives();
+        BeanUtils.copyProperties(coursesDTO, courses);
+//        List<String> teacherIds = new ArrayList<>();
+//        teacherIds.add(teacherId);
+//        courses.setTeacher(String.valueOf(teacherIds));
+        courses.setTeacher(teacherId);
+        courses.setCreateTime(LocalDateTime.now());
+        String code = coursesDTO.getCode();
+        QueryWrapper<Courses> queryWrapper = new QueryWrapper<>();
+        queryWrapper.eq("code", code);
+        Long count = coursesMapper.selectCount(queryWrapper);
+        if(count==0){
+            int insert = coursesMapper.insert(courses);
+            if (insert>0){
+                Courses courses1 = coursesMapper.selectOne(queryWrapper);
+                courseObjectives.setCourseid(courses1.getId());
+                courseObjectives.setCreateTime(courses1.getCreateTime());
+                courseObjectives.setName(courses1.getName()+"课程总体目标");
+                courseObjectivesMapper.insert(courseObjectives);
+            }
+            return "添加成功";
+        }else {
+            throw new BusinessException(ErrorCode.OPERATION_ERROR, "这个课程已经存在了！请联系系统相关人员为您导入课程数据!");
+        }
+
+    }
+
+    @Override
+    public PageDTO<CoursesVO> queryCourses(CourseQuery courseQuery, String teacherId) {
+        //要搜索的课程名字
+        String name = courseQuery.getName();
+        // 1.1构建分页条件
+        Page<Courses> page = courseQuery.toMpPageDefaultSortByCreateTime();
+        // 2.分页查询
+        Page<Courses> p = lambdaQuery()
+                .like(name != null, Courses::getName, name)
+//                .eq(Courses::getTeacher,teacherId)
+//                .apply("JSON_CONTAINS(teacher, JSON_QUOTE({0}))", teacherId)
+                .apply("FIND_IN_SET({0}, teacher)", teacherId)
+                .page(page);
+
+
+        return PageDTO.of(p,CoursesVO.class);
+    }
+
+
+}

src/main/resources/mapper/CourseObjectivesMapper.xml

@@ -0,0 +1,5 @@
+<?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="edu.huanghuai.mapper.CourseObjectivesMapper">
+
+</mapper>

src/main/resources/mapper/CoursesMapper.xml

@@ -0,0 +1,5 @@
+<?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="edu.huanghuai.mapper.CoursesMapper">
+
+</mapper>