肖海南个人中心学习记录（知识点）接口代码

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

@@ -2,10 +2,13 @@ package com.teaching.backend.controller.records;
 
 import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import com.teaching.backend.common.BaseResponse;
+import com.teaching.backend.common.CommonResult;
 import com.teaching.backend.common.ResultUtils;
 import com.teaching.backend.filter.ValidateParams;
 import com.teaching.backend.model.entity.records.CourseLearningRecord;
 import com.teaching.backend.model.entity.records.KnowledgeLearningRecord;
+import com.teaching.backend.model.vo.courses.CoursesVO;
+import com.teaching.backend.model.vo.knowGraph.KnowVO;
 import com.teaching.backend.service.impl.records.KnowledgeLearningRecordServiceImpl;
 import io.swagger.annotations.ApiOperation;
 import org.springframework.web.bind.annotation.*;
@@ -53,5 +56,20 @@ public class KnowledgeLearningRecordController {
         return knowledgeLearningRecordService.removeKnowledgeRecord(ids);
     }
 
+    /**
+     * 获取学习最多的知识点
+     *
+     * @return
+     */
+    @ApiOperation("查询学习最多的知识点")
+    @PostMapping("/studyMaxKnowledge")
+    public CommonResult<List<KnowVO>> studyMaxKnowledge(@RequestParam String userId) {
+        List<KnowVO> knowVO = knowledgeLearningRecordService.queryMaxKnowledge(userId);
+        if (knowVO == null){
+            CommonResult.failed("用户或角色错误");
+        }
+        return CommonResult.success(knowVO);
+    }
+
 
 }

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

@@ -4,6 +4,8 @@ package com.teaching.backend.mapper.records;
 import com.baomidou.mybatisplus.core.mapper.BaseMapper;
 import com.teaching.backend.model.entity.records.KnowledgeLearningRecord;
 
+import java.util.List;
+
 /**
  * <p>
  *  Mapper 接口
@@ -14,4 +16,7 @@ import com.teaching.backend.model.entity.records.KnowledgeLearningRecord;
  */
 public interface KnowledgeLearningRecordMapper extends BaseMapper<KnowledgeLearningRecord> {
 
+    List<String> queryStudyKnowledgeMaxNumber();
+
+    List<String> queryStudyMaxKnowledgeId(String userId);
 }

src/main/java/com/teaching/backend/model/vo/knowGraph/KnowVO.java

@@ -3,7 +3,6 @@ package com.teaching.backend.model.vo.knowGraph;
 import lombok.Data;
 
 import java.io.Serializable;
-import java.util.List;
 
 
 @Data

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

@@ -8,15 +8,23 @@ import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
 import com.teaching.backend.common.BaseResponse;
 import com.teaching.backend.common.ResultUtils;
 import com.teaching.backend.mapper.records.KnowledgeLearningRecordMapper;
+import com.teaching.backend.mapper.umsAdmin.UmsUserMapper;
+import com.teaching.backend.model.entity.KnowGraph.Know;
 import com.teaching.backend.model.entity.KnowGraph.KnowledgeLearningNumber;
+import com.teaching.backend.model.entity.Knowtemp.Knowtemp;
 import com.teaching.backend.model.entity.courses.CourseLearningNumber;
 
+import com.teaching.backend.model.entity.courses.Courses;
 import com.teaching.backend.model.entity.records.KnowledgeLearningRecord;
 
+import com.teaching.backend.model.vo.courses.CoursesVO;
+import com.teaching.backend.model.vo.knowGraph.KnowVO;
 import com.teaching.backend.model.vo.records.KnowledgeLearningRecordVo;
+import com.teaching.backend.service.KnowGraph.KnowService;
 import com.teaching.backend.service.impl.courses.CourseLearningNumberServiceImpl;
 import com.teaching.backend.service.impl.knowledge.KnowledgeLearningNumberServiceImpl;
 import com.teaching.backend.service.records.IKnowledgeLearningRecordService;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
 import javax.annotation.Resource;
@@ -39,6 +47,12 @@ import java.util.List;
 public class KnowledgeLearningRecordServiceImpl extends ServiceImpl<KnowledgeLearningRecordMapper, KnowledgeLearningRecord> implements IKnowledgeLearningRecordService {
     @Resource
     private KnowledgeLearningNumberServiceImpl knowledgeLearningNumberService;
+    @Autowired
+    private UmsUserMapper umsUserMapper;
+    @Autowired
+    private KnowledgeLearningRecordMapper knowledgeLearningRecordMapper;
+    @Resource
+    private KnowService knowService;
 
     @Override
     public BaseResponse<String> saveCoursesRecords(KnowledgeLearningRecord knowledgeLearningRecord) {
@@ -115,4 +129,42 @@ public class KnowledgeLearningRecordServiceImpl extends ServiceImpl<KnowledgeLea
         removeByIds(ids);
         return ResultUtils.success("删除成功！");
     }
+
+    @Override
+    public List<KnowVO> queryMaxKnowledge(String userId) {
+        String roleId = umsUserMapper.getbyIdRoleId(userId);
+        List<KnowVO> coursesList = new ArrayList<>();
+        KnowVO knowVO = null;
+        if (roleId.equals("1")){
+            //老师
+            List<String> knowledgeIdList = knowledgeLearningRecordMapper.queryStudyKnowledgeMaxNumber();
+            for (String knowledgeId : knowledgeIdList) {
+                BaseResponse<Knowtemp> knowledge = knowService.query(Long.valueOf(knowledgeId));
+                if (knowledge.getData() != null){
+                    knowVO = new KnowVO();
+                    knowVO.setId(knowledge.getData().getId());
+                    knowVO.setLabel(knowledge.getData().getName());
+                    knowVO.setColor(knowledge.getData().getInfo());
+                    coursesList.add(knowVO);
+                }
+            }
+            return coursesList;
+        }else if (roleId.equals("2")){
+            //学生
+            List<String> knowledgeIdList = knowledgeLearningRecordMapper.queryStudyMaxKnowledgeId(userId);
+            for (String knowledgeId : knowledgeIdList) {
+                BaseResponse<Knowtemp> knowledge = knowService.query(Long.valueOf(knowledgeId));
+                if (knowledge.getData() != null) {
+                    knowVO = new KnowVO();
+                    knowVO.setId(knowledge.getData().getId());
+                    knowVO.setLabel(knowledge.getData().getName());
+                    knowVO.setColor(knowledge.getData().getInfo());
+                    coursesList.add(knowVO);
+                }
+            }
+            return coursesList;
+        }else {
+            return null;
+        }
+    }
 }

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

@@ -5,6 +5,7 @@ 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.entity.records.KnowledgeLearningRecord;
+import com.teaching.backend.model.vo.knowGraph.KnowVO;
 
 import java.util.List;
 
@@ -23,5 +24,7 @@ public interface IKnowledgeLearningRecordService extends IService<KnowledgeLearn
     BaseResponse<Page> getPage(int pagenum, int pagesize, String userId, String courseId);
 
     BaseResponse<String> removeKnowledgeRecord(List<Long> ids);
+
+    List<KnowVO> queryMaxKnowledge(String userId);
 }
 

src/main/resources/mapper/KnowledgeLearningRecordMapper.xml

@@ -0,0 +1,20 @@
+<?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.records.KnowledgeLearningRecordMapper">
+
+    <select id="queryStudyKnowledgeMaxNumber" resultType="java.lang.String">
+        SELECT
+            kln.knowledge_id knowledgeId
+        FROM
+            knowledge_learning_number kln
+        ORDER BY
+            number
+                DESC;
+    </select>
+    <select id="queryStudyMaxKnowledgeId" resultType="java.lang.String">
+        SELECT knowledge_id,knowledge_name
+        FROM knowledge_learning_record
+        WHERE user_id = #{userId}
+        ORDER BY times DESC;
+    </select>
+</mapper>