yh -2

pom.xml

@@ -41,6 +41,7 @@
             <artifactId>mybatis-spring-boot-starter</artifactId>
             <version>2.2.2</version>
         </dependency>
+
         <!-- https://mvnrepository.com/artifact/com.baomidou/mybatis-plus-boot-starter -->
         <dependency>
             <groupId>com.baomidou</groupId>
@@ -63,6 +64,18 @@
             <artifactId>spring-boot-starter-test</artifactId>
             <scope>test</scope>
         </dependency>
+
+        <!-- https://doc.xiaominfo.com/docs/quick-start#openapi2 -->
+        <dependency>
+            <groupId>com.github.xiaoymin</groupId>
+            <artifactId>knife4j-openapi2-spring-boot-starter</artifactId>
+            <version>4.4.0</version>
+        </dependency>
+        <!-- https://mvnrepository.com/artifact/org.apache.commons/commons-lang3 -->
+        <dependency>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-lang3</artifactId>
+        </dependency>
     </dependencies>
 
 

src/main/java/com/teaching/TeachingBackendApplication.java

@@ -1,9 +1,11 @@
 package com.teaching;
 
+import org.mybatis.spring.annotation.MapperScan;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 
 @SpringBootApplication
+@MapperScan("com.teaching.backend.mapper")
 public class TeachingBackendApplication {
 
     public static void main(String[] args) {

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

@@ -0,0 +1,34 @@
+package com.teaching.backend.common;
+
+import lombok.Data;
+
+import java.io.Serializable;
+
+/**
+ * 通用返回类
+ *
+ * @param <T>
+ */
+@Data
+public class BaseResponse<T> implements Serializable {
+
+    private int code;
+
+    private T data;
+
+    private String message;
+
+    public BaseResponse(int code, T data, String message) {
+        this.code = code;
+        this.data = data;
+        this.message = message;
+    }
+
+    public BaseResponse(int code, T data) {
+        this(code, data, "");
+    }
+
+    public BaseResponse(ErrorCode errorCode) {
+        this(errorCode.getCode(), null, errorCode.getMessage());
+    }
+}

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

@@ -0,0 +1,43 @@
+package com.teaching.backend.common;
+
+/**
+ * 自定义错误码
+ *
+ * @author <a href="https://github.com/liyh">程序员鱼皮</a>
+ * @from <a href="https://yh.icu">编程导航知识星球</a>
+ */
+public enum ErrorCode {
+
+    SUCCESS(0, "ok"),
+    PARAMS_ERROR(40000, "请求参数错误"),
+    NOT_LOGIN_ERROR(40100, "未登录"),
+    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"),
+    SYSTEM_ERROR(50000, "系统内部异常"),
+    OPERATION_ERROR(50001, "操作失败");
+
+    /**
+     * 状态码
+     */
+    private final int code;
+
+    /**
+     * 信息
+     */
+    private final String message;
+
+    ErrorCode(int code, String message) {
+        this.code = code;
+        this.message = message;
+    }
+
+    public int getCode() {
+        return code;
+    }
+
+    public String getMessage() {
+        return message;
+    }
+
+}

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

@@ -0,0 +1,52 @@
+package com.teaching.backend.common;
+
+/**
+ * 返回工具类
+ *
+ * @author <a href="https://github.com/liyh">程序员鱼皮</a>
+ * @from <a href="https://yh.icu">编程导航知识星球</a>
+ */
+public class ResultUtils {
+
+    /**
+     * 成功
+     *
+     * @param data
+     * @param <T>
+     * @return
+     */
+    public static <T> BaseResponse<T> success(T data) {
+        return new BaseResponse<>(0, data, "ok");
+    }
+
+    /**
+     * 失败
+     *
+     * @param errorCode
+     * @return
+     */
+    public static BaseResponse error(ErrorCode errorCode) {
+        return new BaseResponse<>(errorCode);
+    }
+
+    /**
+     * 失败
+     *
+     * @param code
+     * @param message
+     * @return
+     */
+    public static BaseResponse error(int code, String message) {
+        return new BaseResponse(code, null, message);
+    }
+
+    /**
+     * 失败
+     *
+     * @param errorCode
+     * @return
+     */
+    public static BaseResponse error(ErrorCode errorCode, String message) {
+        return new BaseResponse(errorCode.getCode(), null, message);
+    }
+}

src/main/java/com/teaching/backend/common/test1.java

@@ -1,9 +0,0 @@
-package com.teaching.backend.common;
-
-/**
- * @Author:youhang
- * @Date:2024-05-30-18:20
- * @Description:
- */
-public class test1 {
-}

src/main/java/com/teaching/backend/config/MyBatisPlusConfig.java

@@ -0,0 +1,29 @@
+package com.teaching.backend.config;
+
+import com.baomidou.mybatisplus.annotation.DbType;
+import com.baomidou.mybatisplus.extension.plugins.MybatisPlusInterceptor;
+import com.baomidou.mybatisplus.extension.plugins.inner.PaginationInnerInterceptor;
+import org.mybatis.spring.annotation.MapperScan;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+/**
+ * MyBatis Plus 配置
+ */
+@Configuration
+@MapperScan("com.teaching.backend.mapper")
+public class MyBatisPlusConfig {
+
+    /**
+     * 拦截器配置
+     *
+     * @return
+     */
+    @Bean
+    public MybatisPlusInterceptor mybatisPlusInterceptor() {
+        MybatisPlusInterceptor interceptor = new MybatisPlusInterceptor();
+        // 分页插件
+        interceptor.addInnerInterceptor(new PaginationInnerInterceptor(DbType.MYSQL));
+        return interceptor;
+    }
+}

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

@@ -1,21 +0,0 @@
-package com.teaching.backend.controller;
-
-import org.springframework.stereotype.Controller;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RequestMethod;
-import org.springframework.web.bind.annotation.ResponseBody;
-
-/**
- * @Author:youhang
- * @Date:2024-05-30-18:15
- * @Description:
- */
-@Controller
-public class UserController {
-
-    @RequestMapping(value = "/1",method = RequestMethod.GET)
-    @ResponseBody
-    public String add(){
-        return "yh";
-    }
-}

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

@@ -0,0 +1,110 @@
+package com.teaching.backend.controller.favour;
+
+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.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.service.favour.SeCourseFavourService;
+import lombok.extern.slf4j.Slf4j;
+import org.apache.commons.lang3.StringUtils;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import javax.annotation.Resource;
+import java.util.List;
+
+/**
+ * @Author:youhang
+ * @Date:2024-05-30-20:22
+ * @Description:
+ */
+@RestController
+@RequestMapping("/course_favour")
+@Slf4j
+public class SeCourseFavourController {
+
+    @Resource
+    private SeCourseFavourService seCourseFavourService;
+
+
+    /**
+     * 点赞
+     *
+     * @param courseFavourAddRequest
+     * @return result 执行情况
+     */
+    @PostMapping("/add")
+    // todo 后期加上 HttpServletRequest request 在一个fitter里面进行鉴权操作
+    public BaseResponse<Boolean> doFavour(@RequestBody CourseFavourAddRequest courseFavourAddRequest) {
+        System.out.println(courseFavourAddRequest);
+        if (StringUtils.isAnyBlank(courseFavourAddRequest.getCourseId(), courseFavourAddRequest.getUserId())) {
+            throw new BusinessException(ErrorCode.PARAMS_ERROR);
+        }
+        // todo 从数据库中校验是否存在courseid , userid
+        Boolean result = seCourseFavourService.doCourseFavour(courseFavourAddRequest.getCourseId(), courseFavourAddRequest.getUserId());
+        return ResultUtils.success(result);
+    }
+
+
+    /**
+     * 课程点赞总数
+     *
+     * @param courseFavourAddRequest
+     * @return result 课程点赞总数
+     */
+    @PostMapping("/count")
+    // todo 后期加上 HttpServletRequest request 在一个fitter里面进行鉴权操作
+    public BaseResponse<Long> favourCount(@RequestBody CourseFavourAddRequest courseFavourAddRequest) {
+        if (StringUtils.isAnyBlank(courseFavourAddRequest.getCourseId())) {
+            throw new BusinessException(ErrorCode.PARAMS_ERROR, "请求参数不能为空");
+        }
+        // todo 从数据库中校验是否存在courseid
+
+        Long result = seCourseFavourService.favourCount(courseFavourAddRequest.getCourseId());
+        return ResultUtils.success(result);
+    }
+
+    /**
+     * 课程下资源和知识点点赞总数
+     *
+     * @param courseFavourAllRequest
+     * @return result 课程下资源和知识点点赞总数
+     */
+    @PostMapping("/countAll")
+    // todo 后期加上 HttpServletRequest request 在一个fitter里面进行鉴权操作
+    public BaseResponse<Long> courseCount(@RequestBody CourseFavourAllRequest courseFavourAllRequest) {
+        if (StringUtils.isAnyBlank(courseFavourAllRequest.getCourseId())) {
+            throw new BusinessException(ErrorCode.PARAMS_ERROR, "请求参数不能为空");
+        }
+        // todo 从数据库中校验是否存在courseid
+
+        Long result = seCourseFavourService.courseCount(courseFavourAllRequest.getCourseId());
+        return ResultUtils.success(result);
+    }
+
+    /**
+     * 某个用户课程列表
+     *
+     * @param courseFavourListRequest
+     * @return result 某个用户课程列表
+     */
+    @PostMapping("/countList")
+    // todo 后期加上 HttpServletRequest request 在一个fitter里面进行鉴权操作
+    public BaseResponse<List<String>> courseList(@RequestBody CourseFavourListRequest courseFavourListRequest) {
+        if (StringUtils.isAnyBlank(courseFavourListRequest.getUserId())) {
+            throw new BusinessException(ErrorCode.PARAMS_ERROR, "请求参数-用户id不能为空");
+        }
+        // todo 从数据库中校验是否存在userid
+        List<String> result = seCourseFavourService.courseList(courseFavourListRequest.getUserId());
+        return ResultUtils.success(result);
+    }
+
+
+}

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

@@ -0,0 +1,50 @@
+package com.teaching.backend.controller.favour;
+
+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.model.dto.favour.knowFavour.KnowFavourAddRequest;
+import com.teaching.backend.service.favour.SeKnowFavourService;
+import lombok.extern.slf4j.Slf4j;
+import org.apache.commons.lang3.StringUtils;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import javax.annotation.Resource;
+
+/**
+ * @Author:youhang
+ * @Date:2024-05-30-20:22
+ * @Description:
+ */
+@RestController
+@RequestMapping("/know_favour")
+@Slf4j
+public class SeKnowFavourController {
+
+    @Resource
+    private SeKnowFavourService seKnowFavourService;
+
+
+    /**
+     * 点赞
+     *
+     * @param knowFavourAddRequest
+     * @return result 执行情况
+     */
+    @PostMapping("/add")
+    // todo 后期加上 HttpServletRequest request 在一个fitter里面进行鉴权操作
+    public BaseResponse<Boolean> doFavour(@RequestBody KnowFavourAddRequest knowFavourAddRequest) {
+        if (StringUtils.isAnyBlank(knowFavourAddRequest.getCourseId(), knowFavourAddRequest.getKnowId(), knowFavourAddRequest.getUserId())) {
+            throw new BusinessException(ErrorCode.PARAMS_ERROR);
+        }
+        // todo 从数据库中校验是否存在knowid , userid ,courseid
+        Boolean result = seKnowFavourService.doKnowFavour(knowFavourAddRequest.getCourseId(), knowFavourAddRequest.getKnowId(), knowFavourAddRequest.getUserId());
+        return ResultUtils.success(result);
+    }
+
+}

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

@@ -0,0 +1,51 @@
+package com.teaching.backend.controller.favour;
+
+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.model.dto.favour.resourceFavour.ResourceFavourAddRequest;
+import com.teaching.backend.service.favour.SeResourceFavourService;
+import lombok.extern.slf4j.Slf4j;
+import org.apache.commons.lang3.StringUtils;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import javax.annotation.Resource;
+
+/**
+ * @Author:youhang
+ * @Date:2024-05-30-20:22
+ * @Description:
+ */
+@RestController
+@RequestMapping("/resource_favour")
+@Slf4j
+public class SeResourceFavourController {
+
+    @Resource
+    private SeResourceFavourService seResourceFavourService;
+
+
+    /**
+     * 收藏
+     *
+     * @param resourceFavourAddRequest
+     * @return result 执行情况
+     */
+    @PostMapping("/add")
+    // todo 后期加上 HttpServletRequest request 在一个fitter里面进行鉴权操作
+    public BaseResponse<Boolean> doFavour(@RequestBody ResourceFavourAddRequest resourceFavourAddRequest) {
+        if (StringUtils.isAnyBlank(resourceFavourAddRequest.getCourseId(), resourceFavourAddRequest.getResourceId(), resourceFavourAddRequest.getUserId())) {
+            throw new BusinessException(ErrorCode.PARAMS_ERROR);
+        }
+        // todo 从数据库中校验是否存在resourceid , userid ,courseid
+        Boolean result = seResourceFavourService.doResourceFavour(resourceFavourAddRequest.getCourseId(), resourceFavourAddRequest.getResourceId(), resourceFavourAddRequest.getUserId());
+        return ResultUtils.success(result);
+    }
+
+
+}

src/main/java/com/teaching/backend/controller/thumb/SeCourseThumbController.java

@@ -0,0 +1,87 @@
+package com.teaching.backend.controller.thumb;
+
+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.model.dto.thumb.coursethumb.CourseThumbAddRequest;
+import com.teaching.backend.model.dto.thumb.coursethumb.CourseThumbAllRequest;
+import com.teaching.backend.service.thumb.SeCourseThumbService;
+import lombok.extern.slf4j.Slf4j;
+import org.apache.commons.lang3.StringUtils;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import javax.annotation.Resource;
+
+/**
+ * @Author:youhang
+ * @Date:2024-05-30-20:22
+ * @Description:
+ */
+@RestController
+@RequestMapping("/course_thumb")
+@Slf4j
+public class SeCourseThumbController {
+
+    @Resource
+    private SeCourseThumbService seCourseThumbService;
+
+
+    /**
+     * 点赞/取消点赞
+     *
+     * @param courseThumbAddRequest
+     * @return result 执行情况
+     */
+    @PostMapping("/")
+    // todo 后期加上 HttpServletRequest request 在一个fitter里面进行鉴权操作
+    public BaseResponse<Boolean> doThumb(@RequestBody CourseThumbAddRequest courseThumbAddRequest) {
+        if (StringUtils.isAnyBlank(courseThumbAddRequest.getCourseId(), courseThumbAddRequest.getUserId())) {
+            throw new BusinessException(ErrorCode.PARAMS_ERROR);
+        }
+        // todo 从数据库中校验是否存在courseid , userid 从课程表和用户表查询
+        Boolean result = seCourseThumbService.doCourseThumb(courseThumbAddRequest.getCourseId(), courseThumbAddRequest.getUserId());
+        return ResultUtils.success(result);
+    }
+
+
+    /**
+     * 课程点赞总数
+     *
+     * @param courseThumbAddRequest
+     * @return result 课程点赞总数
+     */
+    @PostMapping("/count")
+    // todo 后期加上 HttpServletRequest request 在一个fitter里面进行鉴权操作
+    public BaseResponse<Long> thumbCount(@RequestBody CourseThumbAddRequest courseThumbAddRequest) {
+        if (StringUtils.isAnyBlank(courseThumbAddRequest.getCourseId())) {
+            throw new BusinessException(ErrorCode.PARAMS_ERROR, "请求参数不能为空");
+        }
+        // todo 从数据库中校验是否存在courseid
+
+        Long result = seCourseThumbService.thumbCount(courseThumbAddRequest.getCourseId());
+        return ResultUtils.success(result);
+    }
+
+    /**
+     * 课程下资源和知识点点赞总数
+     *
+     * @param courseThumbAllRequest
+     * @return result 课程下资源和知识点点赞总数
+     */
+    @PostMapping("/countAll")
+    // todo 后期加上 HttpServletRequest request 在一个fitter里面进行鉴权操作
+    public BaseResponse<Long> courseCount(@RequestBody CourseThumbAllRequest courseThumbAllRequest) {
+        if (StringUtils.isAnyBlank(courseThumbAllRequest.getCourseId())) {
+            throw new BusinessException(ErrorCode.PARAMS_ERROR, "请求参数不能为空");
+        }
+        // todo 从数据库中校验是否存在courseid
+
+        Long result = seCourseThumbService.courseCount(courseThumbAllRequest.getCourseId());
+        return ResultUtils.success(result);
+    }
+
+}

src/main/java/com/teaching/backend/controller/thumb/SeKnowThumbController.java

@@ -0,0 +1,49 @@
+package com.teaching.backend.controller.thumb;
+
+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.model.dto.thumb.knowthumb.KnowThumbAddRequest;
+import com.teaching.backend.service.thumb.SeKnowThumbService;
+import lombok.extern.slf4j.Slf4j;
+import org.apache.commons.lang3.StringUtils;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import javax.annotation.Resource;
+
+/**
+ * @Author:youhang
+ * @Date:2024-05-30-20:22
+ * @Description:
+ */
+@RestController
+@RequestMapping("/know_thumb")
+@Slf4j
+public class SeKnowThumbController {
+
+    @Resource
+    private SeKnowThumbService seKnowThumbService;
+
+
+    /**
+     * 点赞
+     *
+     * @param knowThumbAddRequest
+     * @return result 执行情况
+     */
+    @PostMapping("/add")
+    // todo 后期加上 HttpServletRequest request 在一个fitter里面进行鉴权操作
+    public BaseResponse<Boolean> doThumb(@RequestBody KnowThumbAddRequest knowThumbAddRequest) {
+        if (StringUtils.isAnyBlank(knowThumbAddRequest.getCourseId(), knowThumbAddRequest.getKnowId(), knowThumbAddRequest.getUserId())) {
+            throw new BusinessException(ErrorCode.PARAMS_ERROR);
+        }
+        // todo 从数据库中校验是否存在knowid , userid ,courseid
+        Boolean result = seKnowThumbService.doKnowThumb(knowThumbAddRequest.getCourseId(), knowThumbAddRequest.getKnowId(), knowThumbAddRequest.getUserId());
+        return ResultUtils.success(result);
+    }
+
+}

src/main/java/com/teaching/backend/controller/thumb/SeResourceThumbController.java

@@ -0,0 +1,49 @@
+package com.teaching.backend.controller.thumb;
+
+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.model.dto.thumb.resourcethumb.ResourceThumbAddRequest;
+import com.teaching.backend.service.thumb.SeResourceThumbService;
+import lombok.extern.slf4j.Slf4j;
+import org.apache.commons.lang3.StringUtils;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import javax.annotation.Resource;
+
+/**
+ * @Author:youhang
+ * @Date:2024-05-30-20:22
+ * @Description:
+ */
+@RestController
+@RequestMapping("/resource_thumb")
+@Slf4j
+public class SeResourceThumbController {
+
+    @Resource
+    private SeResourceThumbService seResourceThumbService;
+
+
+    /**
+     * 点赞
+     *
+     * @param resourceThumbAddRequest
+     * @return result 执行情况
+     */
+    @PostMapping("/add")
+    // todo 后期加上 HttpServletRequest request 在一个fitter里面进行鉴权操作
+    public BaseResponse<Boolean> doThumb(@RequestBody ResourceThumbAddRequest resourceThumbAddRequest) {
+        if (StringUtils.isAnyBlank(resourceThumbAddRequest.getCourseId(), resourceThumbAddRequest.getResourceId(), resourceThumbAddRequest.getUserId())) {
+            throw new BusinessException(ErrorCode.PARAMS_ERROR);
+        }
+        // todo 从数据库中校验是否存在resourceid , userid ,courseid
+        Boolean result = seResourceThumbService.doResourceThumb(resourceThumbAddRequest.getCourseId(), resourceThumbAddRequest.getResourceId(), resourceThumbAddRequest.getUserId());
+        return ResultUtils.success(result);
+    }
+
+}

src/main/java/com/teaching/backend/exception/BusinessException.java

@@ -0,0 +1,37 @@
+package com.teaching.backend.exception;
+
+
+import com.teaching.backend.common.ErrorCode;
+
+/**
+ * 自定义异常类
+ *
+ * @author <a href="https://github.com/liyh">程序员鱼皮</a>
+ * @from <a href="https://yh.icu">编程导航知识星球</a>
+ */
+public class BusinessException extends RuntimeException {
+
+    /**
+     * 错误码
+     */
+    private final int code;
+
+    public BusinessException(int code, String message) {
+        super(message);
+        this.code = code;
+    }
+
+    public BusinessException(ErrorCode errorCode) {
+        super(errorCode.getMessage());
+        this.code = errorCode.getCode();
+    }
+
+    public BusinessException(ErrorCode errorCode, String message) {
+        super(message);
+        this.code = errorCode.getCode();
+    }
+
+    public int getCode() {
+        return code;
+    }
+}

src/main/java/com/teaching/backend/exception/test1.java

@@ -1,9 +0,0 @@
-package com.teaching.backend.exception;
-
-/**
- * @Author:youhang
- * @Date:2024-05-30-18:20
- * @Description:
- */
-public class test1 {
-}

src/main/java/com/teaching/backend/mapper/favour/SeCourseFavourMapper.java

@@ -0,0 +1,15 @@
+package com.teaching.backend.mapper.favour;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.teaching.backend.model.entity.favour.SeCourseFavour;
+
+/**
+ * 课程点赞数据库操作
+ */
+public interface SeCourseFavourMapper extends BaseMapper<SeCourseFavour> {
+
+}
+
+
+
+

src/main/java/com/teaching/backend/mapper/favour/SeKnowFavourMapper.java

@@ -0,0 +1,16 @@
+package com.teaching.backend.mapper.favour;
+
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.teaching.backend.model.entity.favour.SeKnowFavour;
+
+/**
+ * 知识点赞数据库操作
+ */
+public interface SeKnowFavourMapper extends BaseMapper<SeKnowFavour> {
+
+}
+
+
+
+

src/main/java/com/teaching/backend/mapper/favour/SeResourceFavourMapper.java

@@ -0,0 +1,17 @@
+package com.teaching.backend.mapper.favour;
+
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.teaching.backend.model.entity.favour.SeResourceFavour;
+
+
+/**
+ * 课程资源点赞数据库操作
+ */
+public interface SeResourceFavourMapper extends BaseMapper<SeResourceFavour> {
+
+}
+
+
+
+

src/main/java/com/teaching/backend/mapper/test1.java

@@ -1,9 +0,0 @@
-package com.teaching.backend.mapper;
-
-/**
- * @Author:youhang
- * @Date:2024-05-30-18:20
- * @Description:
- */
-public class test1 {
-}

src/main/java/com/teaching/backend/mapper/thumb/SeCourseThumbMapper.java

@@ -0,0 +1,15 @@
+package com.teaching.backend.mapper.thumb;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.teaching.backend.model.entity.thumb.SeCourseThumb;
+
+/**
+ * 课程点赞数据库操作
+ */
+public interface SeCourseThumbMapper extends BaseMapper<SeCourseThumb> {
+
+}
+
+
+
+

src/main/java/com/teaching/backend/mapper/thumb/SeKnowThumbMapper.java

@@ -0,0 +1,16 @@
+package com.teaching.backend.mapper.thumb;
+
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.teaching.backend.model.entity.thumb.SeKnowThumb;
+
+/**
+ * 知识点赞数据库操作
+ */
+public interface SeKnowThumbMapper extends BaseMapper<SeKnowThumb> {
+
+}
+
+
+
+

src/main/java/com/teaching/backend/mapper/thumb/SeResourceThumbMapper.java

@@ -0,0 +1,17 @@
+package com.teaching.backend.mapper.thumb;
+
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.teaching.backend.model.entity.thumb.SeResourceThumb;
+
+
+/**
+ * 课程资源点赞数据库操作
+ */
+public interface SeResourceThumbMapper extends BaseMapper<SeResourceThumb> {
+
+}
+
+
+
+

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

@@ -0,0 +1,24 @@
+package com.teaching.backend.model.dto.favour.courseFavour;
+
+import lombok.Data;
+
+import java.io.Serializable;
+
+/**
+ * 课程点赞请求
+ */
+@Data
+public class CourseFavourAddRequest implements Serializable {
+
+    /**
+     * 帖子 id
+     */
+    private String courseId;
+
+    /**
+     * user id
+     */
+    private String userId;
+
+    private static final long serialVersionUID = 1L;
+}

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

@@ -0,0 +1,20 @@
+package com.teaching.backend.model.dto.favour.courseFavour;
+
+import lombok.Data;
+
+import java.io.Serializable;
+
+/**
+ * 课程点赞请求
+ */
+@Data
+public class CourseFavourAllRequest implements Serializable {
+
+    /**
+     * 课程 id
+     */
+    private String courseId;
+
+
+    private static final long serialVersionUID = 1L;
+}

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

@@ -0,0 +1,20 @@
+package com.teaching.backend.model.dto.favour.courseFavour;
+
+import lombok.Data;
+
+import java.io.Serializable;
+
+/**
+ * 课程点赞请求
+ */
+@Data
+public class CourseFavourListRequest implements Serializable {
+
+    /**
+     * 用户 id
+     */
+    private String userId;
+
+
+    private static final long serialVersionUID = 1L;
+}

src/main/java/com/teaching/backend/model/dto/favour/knowFavour/KnowFavourAddRequest.java

@@ -0,0 +1,29 @@
+package com.teaching.backend.model.dto.favour.knowFavour;
+
+import lombok.Data;
+
+import java.io.Serializable;
+
+/**
+ * 知识点点赞请求
+ */
+@Data
+public class KnowFavourAddRequest implements Serializable {
+
+    /**
+     * 课程 id
+     */
+    private String courseId;
+
+    /**
+     * 知识点 id
+     */
+    private String knowId;
+
+    /**
+     * user id
+     */
+    private String userId;
+
+    private static final long serialVersionUID = 1L;
+}

src/main/java/com/teaching/backend/model/dto/favour/resourceFavour/ResourceFavourAddRequest.java

@@ -0,0 +1,29 @@
+package com.teaching.backend.model.dto.favour.resourceFavour;
+
+import lombok.Data;
+
+import java.io.Serializable;
+
+/**
+ * 资源点赞请求
+ */
+@Data
+public class ResourceFavourAddRequest implements Serializable {
+
+    /**
+     * 课程 id
+     */
+    private String courseId;
+
+    /**
+     * 知识点 id
+     */
+    private String resourceId;
+
+    /**
+     * user id
+     */
+    private String userId;
+
+    private static final long serialVersionUID = 1L;
+}

src/main/java/com/teaching/backend/model/dto/test1.java

@@ -1,9 +0,0 @@
-package com.teaching.backend.model.dto;
-
-/**
- * @Author:youhang
- * @Date:2024-05-30-18:20
- * @Description:
- */
-public class test1 {
-}

src/main/java/com/teaching/backend/model/dto/thumb/coursethumb/CourseThumbAddRequest.java

@@ -0,0 +1,24 @@
+package com.teaching.backend.model.dto.thumb.coursethumb;
+
+import lombok.Data;
+
+import java.io.Serializable;
+
+/**
+ * 课程点赞请求
+ */
+@Data
+public class CourseThumbAddRequest implements Serializable {
+
+    /**
+     * 帖子 id
+     */
+    private String courseId;
+
+    /**
+     * user id
+     */
+    private String userId;
+
+    private static final long serialVersionUID = 1L;
+}

src/main/java/com/teaching/backend/model/dto/thumb/coursethumb/CourseThumbAllRequest.java

@@ -0,0 +1,20 @@
+package com.teaching.backend.model.dto.thumb.coursethumb;
+
+import lombok.Data;
+
+import java.io.Serializable;
+
+/**
+ * 课程点赞请求
+ */
+@Data
+public class CourseThumbAllRequest implements Serializable {
+
+    /**
+     * 课程 id
+     */
+    private String courseId;
+
+
+    private static final long serialVersionUID = 1L;
+}

src/main/java/com/teaching/backend/model/dto/thumb/knowthumb/KnowThumbAddRequest.java

@@ -0,0 +1,29 @@
+package com.teaching.backend.model.dto.thumb.knowthumb;
+
+import lombok.Data;
+
+import java.io.Serializable;
+
+/**
+ * 知识点点赞请求
+ */
+@Data
+public class KnowThumbAddRequest implements Serializable {
+
+    /**
+     * 课程 id
+     */
+    private String courseId;
+
+    /**
+     * 知识点 id
+     */
+    private String knowId;
+
+    /**
+     * user id
+     */
+    private String userId;
+
+    private static final long serialVersionUID = 1L;
+}

src/main/java/com/teaching/backend/model/dto/thumb/resourcethumb/ResourceThumbAddRequest.java

@@ -0,0 +1,29 @@
+package com.teaching.backend.model.dto.thumb.resourcethumb;
+
+import lombok.Data;
+
+import java.io.Serializable;
+
+/**
+ * 资源点赞请求
+ */
+@Data
+public class ResourceThumbAddRequest implements Serializable {
+
+    /**
+     * 课程 id
+     */
+    private String courseId;
+
+    /**
+     * 知识点 id
+     */
+    private String resourceId;
+
+    /**
+     * user id
+     */
+    private String userId;
+
+    private static final long serialVersionUID = 1L;
+}

src/main/java/com/teaching/backend/model/entity/favour/SeCourseFavour.java

@@ -0,0 +1,35 @@
+package com.teaching.backend.model.entity.favour;
+
+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 lombok.Data;
+
+import java.io.Serializable;
+
+/**
+ * 课程点赞
+ */
+@TableName(value = "se_course_favour")
+@Data
+public class SeCourseFavour implements Serializable {
+    /**
+     * id
+     */
+    @TableId(type = IdType.ASSIGN_ID)
+    private Long id;
+
+    /**
+     * 课程 id
+     */
+    private String courseId;
+
+    /**
+     * 创建用户 id
+     */
+    private String userId;
+
+    @TableField(exist = false)
+    private static final long serialVersionUID = 1L;
+}

src/main/java/com/teaching/backend/model/entity/favour/SeKnowFavour.java

@@ -0,0 +1,40 @@
+package com.teaching.backend.model.entity.favour;
+
+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 lombok.Data;
+
+import java.io.Serializable;
+
+/**
+ * 知识点点赞
+ */
+@TableName(value = "se_know_favour")
+@Data
+public class SeKnowFavour implements Serializable {
+    /**
+     * id
+     */
+    @TableId(type = IdType.ASSIGN_ID)
+    private Long id;
+
+    /**
+     * 课程 id
+     */
+    private String courseId;
+
+    /**
+     * 创建知识点 id
+     */
+    private String knowId;
+
+    /**
+     * 创建用户 id
+     */
+    private String userId;
+
+    @TableField(exist = false)
+    private static final long serialVersionUID = 1L;
+}

src/main/java/com/teaching/backend/model/entity/favour/SeResourceFavour.java

@@ -0,0 +1,40 @@
+package com.teaching.backend.model.entity.favour;
+
+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 lombok.Data;
+
+import java.io.Serializable;
+
+/**
+ * 资源点赞
+ */
+@TableName(value = "se_resource_favour")
+@Data
+public class SeResourceFavour implements Serializable {
+    /**
+     * id
+     */
+    @TableId(type = IdType.ASSIGN_ID)
+    private Long id;
+
+    /**
+     * 课程 id
+     */
+    private String courseId;
+
+    /**
+     * 创建知识点 id
+     */
+    private String resourceId;
+
+    /**
+     * 创建用户 id
+     */
+    private String userId;
+
+    @TableField(exist = false)
+    private static final long serialVersionUID = 1L;
+}

src/main/java/com/teaching/backend/model/entity/test1.java

@@ -1,9 +0,0 @@
-package com.teaching.backend.model.entity;
-
-/**
- * @Author:youhang
- * @Date:2024-05-30-18:20
- * @Description:
- */
-public class test1 {
-}

src/main/java/com/teaching/backend/model/entity/thumb/SeCourseThumb.java

@@ -0,0 +1,36 @@
+package com.teaching.backend.model.entity.thumb;
+
+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 lombok.Data;
+
+import java.io.Serializable;
+import java.util.Date;
+
+/**
+ * 课程点赞
+ */
+@TableName(value = "se_course_thumb")
+@Data
+public class SeCourseThumb implements Serializable {
+    /**
+     * id
+     */
+    @TableId(type = IdType.ASSIGN_ID)
+    private Long id;
+
+    /**
+     * 课程 id
+     */
+    private String courseId;
+
+    /**
+     * 创建用户 id
+     */
+    private String userId;
+
+    @TableField(exist = false)
+    private static final long serialVersionUID = 1L;
+}

src/main/java/com/teaching/backend/model/entity/thumb/SeKnowThumb.java

@@ -0,0 +1,40 @@
+package com.teaching.backend.model.entity.thumb;
+
+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 lombok.Data;
+
+import java.io.Serializable;
+
+/**
+ * 知识点点赞
+ */
+@TableName(value = "se_know_thumb")
+@Data
+public class SeKnowThumb implements Serializable {
+    /**
+     * id
+     */
+    @TableId(type = IdType.ASSIGN_ID)
+    private Long id;
+
+    /**
+     * 课程 id
+     */
+    private String courseId;
+
+    /**
+     * 创建知识点 id
+     */
+    private String knowId;
+
+    /**
+     * 创建用户 id
+     */
+    private String userId;
+
+    @TableField(exist = false)
+    private static final long serialVersionUID = 1L;
+}

src/main/java/com/teaching/backend/model/entity/thumb/SeResourceThumb.java

@@ -0,0 +1,40 @@
+package com.teaching.backend.model.entity.thumb;
+
+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 lombok.Data;
+
+import java.io.Serializable;
+
+/**
+ * 资源点赞
+ */
+@TableName(value = "se_resource_thumb")
+@Data
+public class SeResourceThumb implements Serializable {
+    /**
+     * id
+     */
+    @TableId(type = IdType.ASSIGN_ID)
+    private Long id;
+
+    /**
+     * 课程 id
+     */
+    private String courseId;
+
+    /**
+     * 创建知识点 id
+     */
+    private String resourceId;
+
+    /**
+     * 创建用户 id
+     */
+    private String userId;
+
+    @TableField(exist = false)
+    private static final long serialVersionUID = 1L;
+}

src/main/java/com/teaching/backend/model/test1.java

@@ -1,9 +0,0 @@
-package com.teaching.backend.model;
-
-/**
- * @Author:youhang
- * @Date:2024-05-30-18:20
- * @Description:
- */
-public class test1 {
-}

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

@@ -0,0 +1,51 @@
+package com.teaching.backend.service.favour;
+
+import com.baomidou.mybatisplus.extension.service.IService;
+import com.teaching.backend.model.entity.favour.SeCourseFavour;
+
+import java.util.List;
+
+/**
+ * @Author:youhang
+ * @Date:2024-05-30-20:22
+ * @Description:
+ */
+public interface SeCourseFavourService extends IService<SeCourseFavour> {
+
+    /**
+     * 收藏/取消收藏
+     *
+     * @param courseId
+     * @param userId
+     * @return
+     */
+    boolean doCourseFavour(String courseId, String userId);
+
+
+    /**
+     * 收藏总数
+     *
+     * @param courseId
+     * @return
+     */
+    long favourCount(String courseId);
+
+
+    /**
+     * 课程下资源和知识点的收藏总数
+     *
+     * @param courseId
+     * @return
+     */
+    long courseCount(String courseId);
+
+
+    /**
+     * 某个用户课程列表
+     *
+     * @param userId
+     * @return
+     */
+    List<String> courseList(String userId);
+
+}

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

@@ -0,0 +1,22 @@
+package com.teaching.backend.service.favour;
+
+import com.baomidou.mybatisplus.extension.service.IService;
+import com.teaching.backend.model.entity.favour.SeKnowFavour;
+
+/**
+ * @Author:youhang
+ * @Date:2024-05-30-20:22
+ * @Description:
+ */
+public interface SeKnowFavourService extends IService<SeKnowFavour> {
+
+    /**
+     * 收藏
+     *
+     * @param courseId
+     * @param userId
+     * @return
+     */
+    boolean doKnowFavour(String courseId, String resourceId, String userId);
+
+}

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

@@ -0,0 +1,22 @@
+package com.teaching.backend.service.favour;
+
+import com.baomidou.mybatisplus.extension.service.IService;
+import com.teaching.backend.model.entity.favour.SeResourceFavour;
+
+/**
+ * @Author:youhang
+ * @Date:2024-05-30-20:22
+ * @Description:
+ */
+public interface SeResourceFavourService extends IService<SeResourceFavour> {
+
+    /**
+     * 收藏
+     *
+     * @param courseId
+     * @param userId
+     * @return
+     */
+    boolean doResourceFavour(String courseId, String resourceId, String userId);
+
+}

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

@@ -0,0 +1,123 @@
+package com.teaching.backend.service.impl.favour;
+
+import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
+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.favour.SeCourseFavourMapper;
+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.service.favour.SeCourseFavourService;
+import com.teaching.backend.service.favour.SeKnowFavourService;
+import com.teaching.backend.service.favour.SeResourceFavourService;
+
+import org.springframework.stereotype.Service;
+
+import javax.annotation.Resource;
+import java.util.List;
+import java.util.concurrent.locks.Lock;
+import java.util.concurrent.locks.ReentrantLock;
+import java.util.stream.Collectors;
+
+
+/**
+ * @Author:youhang
+ * @Date:2024-05-30-20:23
+ * @Description:
+ */
+@Service
+public class SeCourseFavourServiceImpl extends ServiceImpl<SeCourseFavourMapper, SeCourseFavour> implements SeCourseFavourService {
+
+
+    @Resource
+    private SeResourceFavourService seResourceFavourService;
+
+    @Resource
+    SeKnowFavourService seKnowFavourService;
+
+
+    @Override
+    public boolean doCourseFavour(String courseId, String userId) {
+        System.out.println("进入点赞" + courseId + userId);
+        // todo 先查询数据库记录，该用户是否点赞
+        SeCourseFavour seCourseFavour = new SeCourseFavour();
+        seCourseFavour.setCourseId(courseId);
+        seCourseFavour.setUserId(userId);
+        QueryWrapper<SeCourseFavour> favourQueryWrapper = new QueryWrapper<>(seCourseFavour);
+        SeCourseFavour oldSeCourseFavour = this.getOne(favourQueryWrapper);
+        boolean result = false;
+        //已点赞
+        if (oldSeCourseFavour != null) {
+            // 取消点赞 删除记录
+            result = this.remove(favourQueryWrapper);
+            if (result) {
+                System.out.println("取消点赞成功");
+                return result;
+            } else {
+                throw new BusinessException(ErrorCode.SYSTEM_ERROR);
+            }
+        } else {
+            // 每个用户串行点赞
+            // 锁必须要包裹住事务方法
+            Lock lock = new ReentrantLock();
+            lock.lock();
+            try {
+                result = this.save(seCourseFavour);
+            } catch (Exception e) {
+                throw new BusinessException(ErrorCode.OPERATION_ERROR);
+            } finally {
+                lock.unlock();
+                System.out.println("点赞成功");
+                return result;
+            }
+        }
+    }
+
+    @Override
+    public long favourCount(String courseId) {
+        System.out.println("进入课程点赞统计" + courseId);
+        QueryWrapper<SeCourseFavour> favourQueryWrapper = new QueryWrapper<>();
+        favourQueryWrapper.eq("course_id", courseId);
+        long result = this.count(favourQueryWrapper);
+        if (result == 0) {
+            throw new BusinessException(ErrorCode.SYSTEM_ERROR, "查询参数不存在");
+        } else {
+            return result;
+        }
+    }
+
+    @Override
+    public long courseCount(String courseId) {
+        System.out.println("进入课程下资源和知识点的点赞统计" + courseId);
+        QueryWrapper<SeResourceFavour> ResourceQueryWrapper = new QueryWrapper<>();
+        ResourceQueryWrapper.eq("course_id", courseId);
+        long result1 = seResourceFavourService.count(ResourceQueryWrapper);
+        QueryWrapper<SeKnowFavour> KnowQueryWrapper = new QueryWrapper<>();
+        KnowQueryWrapper.eq("course_id", courseId);
+        long result2 = seKnowFavourService.count(KnowQueryWrapper);
+        long result = result1 + result2;
+        if (result == 0) {
+            throw new BusinessException(ErrorCode.SYSTEM_ERROR, "查询参数不存在");
+        } else {
+            return result;
+        }
+    }
+
+    /**
+     * 某个用户课程列表
+     *
+     * @param userId
+     * @return
+     */
+    @Override
+    public List<String> courseList(String userId) {
+        QueryWrapper<SeCourseFavour> courseQueryWrapper = new QueryWrapper<>();
+        courseQueryWrapper.eq("user_id", userId);
+        List<String> list = this.list(courseQueryWrapper).stream().map(SeCourseFavour::getCourseId).collect(Collectors.toList());
+        return list;
+    }
+
+
+}

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

@@ -0,0 +1,64 @@
+package com.teaching.backend.service.impl.favour;
+
+import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
+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.favour.SeKnowFavourMapper;
+import com.teaching.backend.model.entity.favour.SeKnowFavour;
+
+import com.teaching.backend.service.favour.SeKnowFavourService;
+import org.springframework.stereotype.Service;
+
+import java.util.concurrent.locks.Lock;
+import java.util.concurrent.locks.ReentrantLock;
+
+
+/**
+ * @Author:youhang
+ * @Date:2024-05-30-20:23
+ * @Description:
+ */
+@Service
+public class SeKnowFavourServiceImpl extends ServiceImpl<SeKnowFavourMapper, SeKnowFavour> implements SeKnowFavourService {
+
+    @Override
+    public boolean doKnowFavour(String courseId, String knowId, String userId) {
+        System.out.println("进入知识点点赞" + knowId + userId);
+        // 先查询数据库记录，该用户是否点赞
+        SeKnowFavour seKnowFavour = new SeKnowFavour();
+        seKnowFavour.setKnowId(knowId);
+        seKnowFavour.setUserId(userId);
+        seKnowFavour.setCourseId(courseId);
+        QueryWrapper<SeKnowFavour> favourQueryWrapper = new QueryWrapper<>(seKnowFavour);
+        SeKnowFavour oldSeKnowFavour = this.getOne(favourQueryWrapper);
+        boolean result = false;
+        //已点赞
+        if (oldSeKnowFavour != null) {
+            // 取消点赞 删除记录
+            result = this.remove(favourQueryWrapper);
+            if (result) {
+                System.out.println("取消点赞成功");
+                return result;
+            } else {
+                throw new BusinessException(ErrorCode.SYSTEM_ERROR);
+            }
+        } else {
+            // 每个用户串行点赞
+            // 锁必须要包裹住事务方法
+            Lock lock = new ReentrantLock();
+            lock.lock();
+            try {
+                result = this.save(seKnowFavour);
+            } catch (Exception e) {
+                throw new BusinessException(ErrorCode.OPERATION_ERROR);
+            } finally {
+                lock.unlock();
+                System.out.println("点赞成功");
+                return result;
+            }
+        }
+    }
+
+
+}

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

@@ -0,0 +1,65 @@
+package com.teaching.backend.service.impl.favour;
+
+import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
+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.favour.SeResourceFavourMapper;
+import com.teaching.backend.model.entity.favour.SeResourceFavour;
+import com.teaching.backend.service.favour.SeResourceFavourService;
+import org.springframework.stereotype.Service;
+
+import java.util.concurrent.locks.Lock;
+import java.util.concurrent.locks.ReentrantLock;
+
+
+/**
+ * @Author:youhang
+ * @Date:2024-05-30-20:23
+ * @Description:
+ */
+@Service
+public class SeResourceFavourServiceImpl extends ServiceImpl<SeResourceFavourMapper, SeResourceFavour> implements SeResourceFavourService {
+
+    @Override
+    public boolean doResourceFavour(String courseId, String resourceId, String userId) {
+        System.out.println("进入知识点点赞" + resourceId + userId);
+        // 先查询数据库记录，该用户是否点赞
+        SeResourceFavour seResourceFavour = new SeResourceFavour();
+        seResourceFavour.setResourceId(resourceId);
+        seResourceFavour.setUserId(userId);
+        seResourceFavour.setCourseId(courseId);
+        QueryWrapper<SeResourceFavour> thumbQueryWrapper = new QueryWrapper<>(seResourceFavour);
+        SeResourceFavour oldSeResourceFavour = this.getOne(thumbQueryWrapper);
+        boolean result = false;
+        //已点赞
+        if (oldSeResourceFavour != null) {
+            // 取消点赞 删除记录
+            result = this.remove(thumbQueryWrapper);
+            if (result) {
+                System.out.println("取消点赞成功");
+                return result;
+            } else {
+                throw new BusinessException(ErrorCode.SYSTEM_ERROR);
+            }
+        } else {
+            // 每个用户串行点赞
+            // 锁必须要包裹住事务方法
+            Lock lock = new ReentrantLock();
+            lock.lock();
+            try {
+                result = this.save(seResourceFavour);
+            } catch (Exception e) {
+                throw new BusinessException(ErrorCode.OPERATION_ERROR);
+            } finally {
+                lock.unlock();
+                System.out.println("点赞成功");
+                return result;
+            }
+        }
+    }
+
+
+}

src/main/java/com/teaching/backend/service/impl/thumb/SeCourseThumbServiceImpl.java

@@ -0,0 +1,105 @@
+package com.teaching.backend.service.impl.thumb;
+
+import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
+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.thumb.SeCourseThumbMapper;
+import com.teaching.backend.model.entity.thumb.SeCourseThumb;
+import com.teaching.backend.model.entity.thumb.SeKnowThumb;
+import com.teaching.backend.model.entity.thumb.SeResourceThumb;
+import com.teaching.backend.service.thumb.SeCourseThumbService;
+import com.teaching.backend.service.thumb.SeKnowThumbService;
+import com.teaching.backend.service.thumb.SeResourceThumbService;
+import org.springframework.stereotype.Service;
+
+import javax.annotation.Resource;
+import java.util.concurrent.locks.Lock;
+import java.util.concurrent.locks.ReentrantLock;
+
+
+/**
+ * @Author:youhang
+ * @Date:2024-05-30-20:23
+ * @Description:
+ */
+@Service
+public class SeCourseThumbServiceImpl extends ServiceImpl<SeCourseThumbMapper, SeCourseThumb> implements SeCourseThumbService {
+
+
+    @Resource
+    private SeResourceThumbService seResourceThumbService;
+
+    @Resource
+    SeKnowThumbService seKnowThumbService;
+
+
+    @Override
+    public boolean doCourseThumb(String courseId, String userId) {
+        System.out.println("进入点赞" + courseId + userId);
+        // 先查询数据库记录，该用户是否点赞
+        SeCourseThumb seCourseThumb = new SeCourseThumb();
+        seCourseThumb.setCourseId(courseId);
+        seCourseThumb.setUserId(userId);
+        QueryWrapper<SeCourseThumb> thumbQueryWrapper = new QueryWrapper<>(seCourseThumb);
+        SeCourseThumb oldSeCourseThumb = this.getOne(thumbQueryWrapper);
+        boolean result = false;
+        //已点赞
+        if (oldSeCourseThumb != null) {
+            // 取消点赞 删除记录
+            result = this.remove(thumbQueryWrapper);
+            if (result) {
+                System.out.println("取消点赞成功");
+                return result;
+            } else {
+                throw new BusinessException(ErrorCode.SYSTEM_ERROR);
+            }
+        } else {
+            // 每个用户串行点赞
+            // 锁必须要包裹住事务方法
+            Lock lock = new ReentrantLock();
+            lock.lock();
+            try {
+                result = this.save(seCourseThumb);
+            } catch (Exception e) {
+                throw new BusinessException(ErrorCode.OPERATION_ERROR);
+            } finally {
+                lock.unlock();
+                System.out.println("点赞成功");
+                return result;
+            }
+        }
+    }
+
+    @Override
+    public long thumbCount(String courseId) {
+        System.out.println("进入课程点赞统计" + courseId);
+        QueryWrapper<SeCourseThumb> thumbQueryWrapper = new QueryWrapper<>();
+        thumbQueryWrapper.eq("course_id", courseId);
+        long result = this.count(thumbQueryWrapper);
+        if (result == 0) {
+            throw new BusinessException(ErrorCode.SYSTEM_ERROR, "查询参数不存在");
+        } else {
+            return result;
+        }
+    }
+
+    @Override
+    public long courseCount(String courseId) {
+        System.out.println("进入课程下资源和知识点的点赞统计" + courseId);
+        QueryWrapper<SeResourceThumb> ResourceQueryWrapper = new QueryWrapper<>();
+        ResourceQueryWrapper.eq("course_id", courseId);
+        long result1 = seResourceThumbService.count(ResourceQueryWrapper);
+        QueryWrapper<SeKnowThumb> KnowQueryWrapper = new QueryWrapper<>();
+        KnowQueryWrapper.eq("course_id", courseId);
+        long result2 = seKnowThumbService.count(KnowQueryWrapper);
+        long result = result1 + result2;
+        if (result == 0) {
+            throw new BusinessException(ErrorCode.SYSTEM_ERROR, "查询参数不存在");
+        } else {
+            return result;
+        }
+    }
+
+
+}

src/main/java/com/teaching/backend/service/impl/thumb/SeKnowThumbServiceImpl.java

@@ -0,0 +1,63 @@
+package com.teaching.backend.service.impl.thumb;
+
+import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
+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.thumb.SeKnowThumbMapper;
+import com.teaching.backend.model.entity.thumb.SeKnowThumb;
+import com.teaching.backend.service.thumb.SeKnowThumbService;
+import org.springframework.stereotype.Service;
+
+import java.util.concurrent.locks.Lock;
+import java.util.concurrent.locks.ReentrantLock;
+
+
+/**
+ * @Author:youhang
+ * @Date:2024-05-30-20:23
+ * @Description:
+ */
+@Service
+public class SeKnowThumbServiceImpl extends ServiceImpl<SeKnowThumbMapper, SeKnowThumb> implements SeKnowThumbService {
+
+    @Override
+    public boolean doKnowThumb(String courseId, String knowId, String userId) {
+        System.out.println("进入知识点点赞" + knowId + userId);
+        // 先查询数据库记录，该用户是否点赞
+        SeKnowThumb seKnowThumb = new SeKnowThumb();
+        seKnowThumb.setKnowId(knowId);
+        seKnowThumb.setUserId(userId);
+        seKnowThumb.setCourseId(courseId);
+        QueryWrapper<SeKnowThumb> thumbQueryWrapper = new QueryWrapper<>(seKnowThumb);
+        SeKnowThumb oldSeKnowThumb = this.getOne(thumbQueryWrapper);
+        boolean result = false;
+        //已点赞
+        if (oldSeKnowThumb != null) {
+            // 取消点赞 删除记录
+            result = this.remove(thumbQueryWrapper);
+            if (result) {
+                System.out.println("取消点赞成功");
+                return result;
+            } else {
+                throw new BusinessException(ErrorCode.SYSTEM_ERROR);
+            }
+        } else {
+            // 每个用户串行点赞
+            // 锁必须要包裹住事务方法
+            Lock lock = new ReentrantLock();
+            lock.lock();
+            try {
+                result = this.save(seKnowThumb);
+            } catch (Exception e) {
+                throw new BusinessException(ErrorCode.OPERATION_ERROR);
+            } finally {
+                lock.unlock();
+                System.out.println("点赞成功");
+                return result;
+            }
+        }
+    }
+
+
+}

src/main/java/com/teaching/backend/service/impl/thumb/SeResourceThumbServiceImpl.java

@@ -0,0 +1,63 @@
+package com.teaching.backend.service.impl.thumb;
+
+import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
+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.thumb.SeResourceThumbMapper;
+import com.teaching.backend.model.entity.thumb.SeResourceThumb;
+import com.teaching.backend.service.thumb.SeResourceThumbService;
+import org.springframework.stereotype.Service;
+
+import java.util.concurrent.locks.Lock;
+import java.util.concurrent.locks.ReentrantLock;
+
+
+/**
+ * @Author:youhang
+ * @Date:2024-05-30-20:23
+ * @Description:
+ */
+@Service
+public class SeResourceThumbServiceImpl extends ServiceImpl<SeResourceThumbMapper, SeResourceThumb> implements SeResourceThumbService {
+
+    @Override
+    public boolean doResourceThumb(String courseId, String resourceId, String userId) {
+        System.out.println("进入知识点点赞" + resourceId + userId);
+        // 先查询数据库记录，该用户是否点赞
+        SeResourceThumb seResourceThumb = new SeResourceThumb();
+        seResourceThumb.setResourceId(resourceId);
+        seResourceThumb.setUserId(userId);
+        seResourceThumb.setCourseId(courseId);
+        QueryWrapper<SeResourceThumb> thumbQueryWrapper = new QueryWrapper<>(seResourceThumb);
+        SeResourceThumb oldSeResourceThumb = this.getOne(thumbQueryWrapper);
+        boolean result = false;
+        //已点赞
+        if (oldSeResourceThumb != null) {
+            // 取消点赞 删除记录
+            result = this.remove(thumbQueryWrapper);
+            if (result) {
+                System.out.println("取消点赞成功");
+                return result;
+            } else {
+                throw new BusinessException(ErrorCode.SYSTEM_ERROR);
+            }
+        } else {
+            // 每个用户串行点赞
+            // 锁必须要包裹住事务方法
+            Lock lock = new ReentrantLock();
+            lock.lock();
+            try {
+                result = this.save(seResourceThumb);
+            } catch (Exception e) {
+                throw new BusinessException(ErrorCode.OPERATION_ERROR);
+            } finally {
+                lock.unlock();
+                System.out.println("点赞成功");
+                return result;
+            }
+        }
+    }
+
+
+}

src/main/java/com/teaching/backend/service/test1.java

@@ -1,9 +0,0 @@
-package com.teaching.backend.service;
-
-/**
- * @Author:youhang
- * @Date:2024-05-30-18:20
- * @Description:
- */
-public class test1 {
-}

src/main/java/com/teaching/backend/service/thumb/SeCourseThumbService.java

@@ -0,0 +1,40 @@
+package com.teaching.backend.service.thumb;
+
+import com.baomidou.mybatisplus.extension.service.IService;
+import com.teaching.backend.model.entity.thumb.SeCourseThumb;
+
+/**
+ * @Author:youhang
+ * @Date:2024-05-30-20:22
+ * @Description:
+ */
+public interface SeCourseThumbService extends IService<SeCourseThumb> {
+
+    /**
+     * 点赞
+     *
+     * @param courseId
+     * @param userId
+     * @return
+     */
+    boolean doCourseThumb(String courseId, String userId);
+
+
+    /**
+     * 点赞总数
+     *
+     * @param courseId
+     * @return
+     */
+    long thumbCount(String courseId);
+
+
+    /**
+     * 课程下资源和知识点的点赞总数
+     *
+     * @param courseId
+     * @return
+     */
+    long courseCount(String courseId);
+
+}

src/main/java/com/teaching/backend/service/thumb/SeKnowThumbService.java

@@ -0,0 +1,22 @@
+package com.teaching.backend.service.thumb;
+
+import com.baomidou.mybatisplus.extension.service.IService;
+import com.teaching.backend.model.entity.thumb.SeKnowThumb;
+
+/**
+ * @Author:youhang
+ * @Date:2024-05-30-20:22
+ * @Description:
+ */
+public interface SeKnowThumbService extends IService<SeKnowThumb> {
+
+    /**
+     * 点赞
+     *
+     * @param courseId
+     * @param userId
+     * @return
+     */
+    boolean doKnowThumb(String courseId, String resourceId, String userId);
+
+}

src/main/java/com/teaching/backend/service/thumb/SeResourceThumbService.java

@@ -0,0 +1,22 @@
+package com.teaching.backend.service.thumb;
+
+import com.baomidou.mybatisplus.extension.service.IService;
+import com.teaching.backend.model.entity.thumb.SeResourceThumb;
+
+/**
+ * @Author:youhang
+ * @Date:2024-05-30-20:22
+ * @Description:
+ */
+public interface SeResourceThumbService extends IService<SeResourceThumb> {
+
+    /**
+     * 点赞
+     *
+     * @param courseId
+     * @param userId
+     * @return
+     */
+    boolean doResourceThumb(String courseId, String resourceId, String userId);
+
+}

src/main/resources/application.yml

@@ -13,4 +13,20 @@ spring:
     password: root
 mybatis:
   configuration:
-    map-underscore-to-camel-case: true
+    map-underscore-to-camel-case: true
+  mapper-locations:
+    - classpath:dao/*.xml
+    - classpath*:com/**/mapper/*.xml
+
+
+# 接口文档配置
+knife4j:
+  enable: true
+  openapi:
+    title: "接口文档"
+    version: 1.0
+    group:
+      default:
+        api-rule: package
+        api-rule-resources:
+          - com.teaching.backend.controller

src/main/resources/mapper/SeCourseThumbMapper.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="com.teaching.backend.mapper.thumb.SeCourseThumbMapper">
+
+    <resultMap id="BaseResultMap" type="com.teaching.backend.model.entity.thumb.SeCourseThumb">
+        <id property="id" column="id" jdbcType="BIGINT"/>
+        <result property="courseId" column="course_id" jdbcType="BIGINT"/>
+        <result property="userId" column="user_id" jdbcType="BIGINT"/>
+    </resultMap>
+
+    <sql id="Base_Column_List">
+        id
+        ,courseId,
+        userId
+    </sql>
+</mapper>