feat(exam): 试题关联知识点功能

- 后端：ExamQuestion 实体新增 knowledge_code 字段存储关联知识点
- 后端：TextbookController 新增教材下拉列表、知识点列表接口
- 后端：KnowledgeController 新增按编码列表查询知识点接口
- 前端：试题创建/编辑页面增加教材-知识点两级级联选择器
- 支持多选知识点，编辑时自动回显已关联知识点

app/api/playedu-api/src/main/java/xyz/playedu/api/controller/backend/exam/QuestionController.java

@@ -74,6 +74,7 @@ public class QuestionController {
         String content = MapUtils.getString(params, "content");
         Integer level = MapUtils.getInteger(params, "level");
         Integer type = MapUtils.getInteger(params, "type");
+        String knowledgeCode = MapUtils.getString(params, "knowledge_code");
 
         ExamQuestionPaginateFilter filter = new ExamQuestionPaginateFilter();
         filter.setSortAlgo(sortAlgo);
@@ -82,6 +83,7 @@ public class QuestionController {
         filter.setContent(content);
         filter.setLevel(level);
         filter.setType(type);
+        filter.setKnowledgeCode(knowledgeCode);
 
         if (!backendBus.isSuperAdmin()) { // 非超管只能读取它自己的题库
             filter.setAdminIds(backendBus.getSameDataPermissionAdminIds());
@@ -125,6 +127,7 @@ public class QuestionController {
         String content = MapUtils.getString(params, "content");
         Integer level = MapUtils.getInteger(params, "level");
         Integer type = MapUtils.getInteger(params, "type");
+        String knowledgeCode = MapUtils.getString(params, "knowledge_code");
 
         List<ExamQuestionCategory> questionCategories = new ArrayList<>();
         if (StringUtil.isNotNull(categoryId)) {
@@ -147,6 +150,7 @@ public class QuestionController {
         filter.setContent(content);
         filter.setLevel(level);
         filter.setType(type);
+        filter.setKnowledgeCode(knowledgeCode);
 
         if (!backendBus.isSuperAdmin()) { // 非超管只能读取它自己的题库
             filter.setAdminIds(backendBus.getSameDataPermissionAdminIds());
@@ -169,6 +173,7 @@ public class QuestionController {
                 req.getCategoryId(),
                 req.getContent().replaceAll(" ", ""),
                 req.getLevel(),
+                req.getKnowledgeCode(),
                 req.getType(),
                 BCtx.getId());
 
@@ -198,6 +203,7 @@ public class QuestionController {
                 examQuestion.getId(),
                 req.getContent().replaceAll(" ", ""),
                 req.getLevel(),
+                req.getKnowledgeCode(),
                 req.getType(),
                 req.getCategoryId(),
                 BCtx.getId());

app/api/playedu-api/src/main/java/xyz/playedu/api/controller/backend/jc/KnowledgeController.java

@@ -72,4 +72,20 @@ public class KnowledgeController {
         knowledgeService.remove(queryWrapper);
         return JsonResponse.success();
     }
+
+    /**
+     * 根据知识点编码列表获取知识点详情（用于编辑回显）
+     * @param codes 逗号分隔的知识点编码
+     */
+    @GetMapping("/byCodes")
+    public JsonResponse getByCodes(@RequestParam("codes") String codes) {
+        if (codes == null || codes.trim().isEmpty()) {
+            return JsonResponse.data(List.of());
+        }
+        String[] codeArray = codes.split(",");
+        LambdaQueryWrapper<Knowledge> queryWrapper = new LambdaQueryWrapper<>();
+        queryWrapper.in(Knowledge::getKnowledgeCode, (Object[]) codeArray);
+        List<Knowledge> list = knowledgeService.list(queryWrapper);
+        return JsonResponse.data(list);
+    }
 }

app/api/playedu-api/src/main/java/xyz/playedu/api/controller/backend/jc/TextbookController.java

@@ -1,7 +1,6 @@
 package xyz.playedu.api.controller.backend.jc;
 
 import cn.hutool.core.util.ObjectUtil;
-import org.apache.commons.collections4.MapUtils;
 import org.apache.commons.lang3.ObjectUtils;
 import org.springframework.beans.BeanUtils;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -37,7 +36,10 @@ import xyz.playedu.jc.service.ITextbookService;
 import xyz.playedu.jc.service.JCIResourceService;
 import xyz.playedu.knowledge.domain.KnowledgeMessages;
 
-import java.util.*;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
 import java.util.stream.Collectors;
 
 /**
@@ -273,6 +275,22 @@ public class TextbookController {
         return JsonResponse.data(list);
     }
 
+    /**
+     * 获取教材下拉选择列表（轻量级，仅返回id和title）
+     */
+    @GetMapping("/selectList")
+    public JsonResponse selectList() {
+        List<Textbook> list = textbookService.list();
+        List<Map<String, Object>> result = new ArrayList<>();
+        for (Textbook textbook : list) {
+            Map<String, Object> item = new HashMap<>();
+            item.put("id", textbook.getId());
+            item.put("title", textbook.getTitle());
+            result.add(item);
+        }
+        return JsonResponse.data(result);
+    }
+
 //    @GetMapping("/{id}")
 //    public JsonResponse detail(@PathVariable("id") Integer id) {
 //        Textbook one = textbookService.getById(id);
@@ -347,7 +365,4 @@ public class TextbookController {
         textbookService.updateById(textbook);
         return JsonResponse.success();
     }
-
-
-
 }

app/api/playedu-api/src/main/java/xyz/playedu/api/request/backend/exam/ExamQuestionRequest.java

@@ -24,6 +24,9 @@ public class ExamQuestionRequest implements Serializable {
     @NotNull(message = "level参数为空")
     private Integer level;
 
+    @JsonProperty("knowledge_code")
+    private String knowledgeCode;
+
     @NotNull(message = "type参数为空")
     private Integer type;
 }

app/api/playedu-common/src/main/java/xyz/playedu/common/types/paginate/ExamQuestionPaginateFilter.java

@@ -17,6 +17,8 @@ public class ExamQuestionPaginateFilter {
 
     private String categoryId;
 
+    private String knowledgeCode;
+
     private List<Integer> adminIds;
 
     private String sortField;

app/api/playedu-course/src/main/java/xyz/playedu/jc/domain/Knowledge.java

@@ -6,7 +6,6 @@ import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
 import lombok.Data;
 import xyz.playedu.framework.tenant.core.db.TenantBaseDO;
-
 import java.util.Date;
 import java.util.List;
 
@@ -38,7 +37,7 @@ public class Knowledge extends TenantBaseDO {
     private String knowledgeCode;
 
     /** 知识点介绍 */
-    @TableField("desc")
+    @TableField("`desc`")
     private String desc;
 
     /** 层级 */

app/api/playedu-course/src/main/java/xyz/playedu/jc/service/impl/KnowledgeServiceImpl.java

@@ -47,7 +47,8 @@ public class KnowledgeServiceImpl extends ServiceImpl<KnowledgeMapper, Knowledge
     public List<Knowledge> listVo(KnowledgeParam param) {
         //获取知识点卡片
         LambdaQueryWrapper<Knowledge> queryWrapper = new LambdaQueryWrapper<>();
-        queryWrapper.eq(Knowledge::getBookId, param.getBookId())
+        // 当bookId不为空时才加条件，否则查询所有知识点
+        queryWrapper.eq(param.getBookId() != null, Knowledge::getBookId, param.getBookId())
                 .eq(Knowledge::getIsReal,"1").orderByAsc(Knowledge::getOrderNum);
         return list(queryWrapper);
     }

app/api/playedu-exam/src/main/java/xyz/playedu/exam/domain/ExamQuestion.java

@@ -36,6 +36,10 @@ public class ExamQuestion extends TenantBaseDO {
     /** 难度等级:1-4 */
     private Integer level;
 
+    /** 知识点CODE（多个用逗号分隔） */
+    @JsonProperty("knowledge_code")
+    private String knowledgeCode;
+
     /** 内容 */
     private String content;
 
@@ -78,6 +82,9 @@ public class ExamQuestion extends TenantBaseDO {
                 && (this.getLevel() == null
                         ? other.getLevel() == null
                         : this.getLevel().equals(other.getLevel()))
+                && (this.getKnowledgeCode() == null
+                        ? other.getKnowledgeCode() == null
+                        : this.getKnowledgeCode().equals(other.getKnowledgeCode()))
                 && (this.getContent() == null
                         ? other.getContent() == null
                         : this.getContent().equals(other.getContent()))
@@ -101,6 +108,7 @@ public class ExamQuestion extends TenantBaseDO {
         result = prime * result + ((getAdminId() == null) ? 0 : getAdminId().hashCode());
         result = prime * result + ((getType() == null) ? 0 : getType().hashCode());
         result = prime * result + ((getLevel() == null) ? 0 : getLevel().hashCode());
+        result = prime * result + ((getKnowledgeCode() == null) ? 0 : getKnowledgeCode().hashCode());
         result = prime * result + ((getContent() == null) ? 0 : getContent().hashCode());
         result = prime * result + ((getCreatedAt() == null) ? 0 : getCreatedAt().hashCode());
         result = prime * result + ((getUpdatedAt() == null) ? 0 : getUpdatedAt().hashCode());
@@ -119,6 +127,7 @@ public class ExamQuestion extends TenantBaseDO {
         sb.append(", adminId=").append(adminId);
         sb.append(", type=").append(type);
         sb.append(", level=").append(level);
+        sb.append(", knowledgeCode=").append(knowledgeCode);
         sb.append(", content=").append(content);
         sb.append(", createdAt=").append(createdAt);
         sb.append(", updatedAt=").append(updatedAt);

app/api/playedu-exam/src/main/java/xyz/playedu/exam/service/ExamQuestionService.java

@@ -20,12 +20,18 @@ public interface ExamQuestionService extends IService<ExamQuestion> {
     PaginationResult<ExamQuestion> paginate(int page, int size, ExamQuestionPaginateFilter filter);
 
     Integer create(
-            Integer categoryId, String content, Integer level, Integer type, Integer adminId);
+            Integer categoryId,
+            String content,
+            Integer level,
+            String knowledgeCode,
+            Integer type,
+            Integer adminId);
 
     void update(
             Integer id,
             String content,
             Integer level,
+            String knowledgeCode,
             Integer type,
             Integer categoryId,
             Integer adminId);

app/api/playedu-exam/src/main/java/xyz/playedu/exam/service/impl/ExamQuestionServiceImpl.java

@@ -50,13 +50,19 @@ public class ExamQuestionServiceImpl extends ServiceImpl<ExamQuestionMapper, Exa
 
     @Override
     public Integer create(
-            Integer categoryId, String content, Integer level, Integer type, Integer adminId) {
+            Integer categoryId,
+            String content,
+            Integer level,
+            String knowledgeCode,
+            Integer type,
+            Integer adminId) {
         ExamQuestion examQuestion =
                 new ExamQuestion() {
                     {
                         setCategoryId(categoryId);
                         setAdminId(adminId);
                         setLevel(level);
+                        setKnowledgeCode(knowledgeCode);
                         setType(type);
                         setContent(content);
                         setCreatedAt(new Date());
@@ -72,6 +78,7 @@ public class ExamQuestionServiceImpl extends ServiceImpl<ExamQuestionMapper, Exa
             Integer id,
             String content,
             Integer level,
+            String knowledgeCode,
             Integer type,
             Integer categoryId,
             Integer adminId) {
@@ -82,6 +89,7 @@ public class ExamQuestionServiceImpl extends ServiceImpl<ExamQuestionMapper, Exa
         question.setCategoryId(categoryId);
         question.setContent(content);
         question.setLevel(level);
+        question.setKnowledgeCode(knowledgeCode);
         question.setType(type);
         question.setUpdatedAt(new Date());
 

app/api/playedu-exam/src/main/resources/mapper/ExamQuestionMapper.xml

@@ -10,6 +10,7 @@
             <result property="adminId" column="admin_id" jdbcType="INTEGER"/>
             <result property="type" column="type" jdbcType="INTEGER"/>
             <result property="level" column="level" jdbcType="TINYINT"/>
+            <result property="knowledgeCode" column="knowledge_code" jdbcType="VARCHAR"/>
             <result property="content" column="content" jdbcType="VARCHAR"/>
             <result property="createdAt" column="created_at" jdbcType="TIMESTAMP"/>
             <result property="updatedAt" column="updated_at" jdbcType="TIMESTAMP"/>
@@ -18,7 +19,7 @@
 
     <sql id="Base_Column_List">
         id,category_id,admin_id,type,
-        level,content,created_at,
+        level,knowledge_code,content,created_at,
         updated_at,deleted
     </sql>
 
@@ -42,6 +43,9 @@
             <if test="level != null">
                 AND `exam_question`.`level` = #{level}
             </if>
+            <if test="knowledgeCode != null and knowledgeCode != ''">
+                AND FIND_IN_SET(#{knowledgeCode}, `exam_question`.`knowledge_code`)
+            </if>
         </where>
 
         <if test="sortAlgo == 'asc'">
@@ -87,6 +91,9 @@
             <if test="level != null">
                 AND `exam_question`.`level` = #{level}
             </if>
+            <if test="knowledgeCode != null and knowledgeCode != ''">
+                AND FIND_IN_SET(#{knowledgeCode}, `exam_question`.`knowledge_code`)
+            </if>
         </where>
     </select>
 

app/backend/src/api/question.ts

@@ -54,7 +54,8 @@ export function questionList(
   sortAlgo: string,
   content: string,
   level: any,
-  type: any
+  type: any,
+  knowledgeCode?: string
 ) {
   return client.get('/backend/v1/exam/question/index', {
     category_id,
@@ -65,15 +66,23 @@ export function questionList(
     content,
     level,
     type,
+    knowledge_code: knowledgeCode,
   });
 }
 
-export function questionStore(category_id: number, content: string, level: any, type: any) {
+export function questionStore(
+  category_id: number,
+  content: string,
+  level: any,
+  type: any,
+  knowledge_code?: string
+) {
   return client.post('/backend/v1/exam/question/create', {
     category_id,
     content,
     level,
     type,
+    knowledge_code,
   });
 }
 
@@ -86,13 +95,15 @@ export function questionUpdate(
   category_id: number,
   content: string,
   level: any,
-  type: any
+  type: any,
+  knowledge_code?: string
 ) {
   return client.put(`/backend/v1/exam/question/${id}`, {
     category_id,
     content,
     level,
     type,
+    knowledge_code,
   });
 }
 

app/backend/src/api/textbook.ts

@@ -229,6 +229,25 @@ export function EditChapterApi(
   });
 }
 
+/*
+ * Knowledge 知识点
+ * */
+
+// 获取知识点列表
+export function getKnowledgeListApi(bookId?: number) {
+  return client.get('/backend/v1/jc/knowledge/list', { bookId: bookId });
+}
+
+// 获取教材下拉列表（不分页，用于选择器）
+export function getTextbookSelectListApi() {
+  return client.get('/backend/v1/jc/textbook/selectList', {});
+}
+
+// 根据知识点编码列表获取知识点详情（用于编辑回显）
+export function getKnowledgeByCodesApi(codes: string) {
+  return client.get('/backend/v1/jc/knowledge/byCodes', { codes });
+}
+
 /*
  * resource List
  * */

app/backend/src/compenents/add-question/index.tsx

@@ -13,7 +13,7 @@ import {
   Spin,
   message,
 } from 'antd';
-import { question, resourceCategory } from '../../api';
+import { question, resourceCategory, textbook } from '../../api';
 import type { ColumnsType } from 'antd/es/table';
 import styles from './index.module.less';
 import { TreeQuestion } from '../../compenents';
@@ -63,6 +63,11 @@ export const AddQuestion = (props: PropsInterface) => {
   const [selectedIds, setSelectedIds] = useState<any>([]);
   const [selectVideos, setSelectVideos] = useState<any[]>([]);
   const [categories, setCategories] = useState<Option[]>([]);
+  const [textbookList, setTextbookList] = useState<any[]>([]); // 教材列表
+  const [selectedTextbookId, setSelectedTextbookId] = useState<number | undefined>(undefined); // 选中的教材ID
+  const [knowledgeCode, setKnowledgeCode] = useState('');
+  const [knowledgeList, setKnowledgeList] = useState<any[]>([]);
+  const [knowledgeLoading, setKnowledgeLoading] = useState(false); // 知识点加载状态
   const [resourceUrl, setResourceUrl] = useState<ResourceUrlModel>({});
   const types = [
     { label: t('exam.question.choice.label2'), value: 1 },
@@ -92,10 +97,43 @@ export const AddQuestion = (props: PropsInterface) => {
 
   const initData = async () => {
     await getCategory();
+    await getTextbookList();
     await getList();
     setInit(false);
   };
 
+  // 加载教材列表
+  const getTextbookList = async () => {
+    try {
+      const res: any = await textbook.getTextbookSelectListApi();
+      if (res.data && Array.isArray(res.data)) {
+        setTextbookList(res.data);
+      }
+    } catch (err) {
+      console.error('加载教材列表失败:', err);
+    }
+  };
+
+  // 当选择教材时，加载对应的知识点列表
+  const handleTextbookChange = async (textbookId: number | undefined) => {
+    setSelectedTextbookId(textbookId);
+    setKnowledgeCode(''); // 清空已选知识点
+    setKnowledgeList([]);
+
+    if (textbookId) {
+      setKnowledgeLoading(true);
+      try {
+        const res: any = await textbook.getKnowledgeListApi(textbookId);
+        if (res.data && Array.isArray(res.data)) {
+          setKnowledgeList(res.data);
+        }
+      } catch (err) {
+        console.error('加载知识点列表失败:', err);
+      }
+      setKnowledgeLoading(false);
+    }
+  };
+
   const getCategory = async () => {
     const res: any = await resourceCategory.resourceCategoryList();
     const categories = res.data.categories;
@@ -122,7 +160,8 @@ export const AddQuestion = (props: PropsInterface) => {
         '',
         name,
         level.length === 0 ? '' : level,
-        type.length === 0 ? '' : type
+        type.length === 0 ? '' : type,
+        knowledgeCode || undefined
       );
       setResourceUrl(res.data.resource_url);
       const data = res.data.result.data;
@@ -152,6 +191,9 @@ export const AddQuestion = (props: PropsInterface) => {
     setName('');
     setType([]);
     setLevel([]);
+    setSelectedTextbookId(undefined);
+    setKnowledgeCode('');
+    setKnowledgeList([]);
     setSelectedRowKeys([]);
     setSelectedIds([]);
     setRefresh(!refresh);
@@ -380,6 +422,46 @@ export const AddQuestion = (props: PropsInterface) => {
                     placeholder={t('exam.question.detail.namePlaceholder2')}
                   />
                 </div>
+              </div>
+              <div className="d-flex mb-24">
+                <div className="d-flex mr-16">
+                  <Typography.Text>教材</Typography.Text>
+                  <Select
+                    style={{ width: 150 }}
+                    placeholder="请选择教材"
+                    value={selectedTextbookId}
+                    allowClear
+                    showSearch
+                    filterOption={(input: string, option: any) =>
+                      (option?.label ?? '').toLowerCase().includes(input.toLowerCase())
+                    }
+                    onChange={handleTextbookChange}
+                    options={textbookList.map((item: any) => ({
+                      label: item.title,
+                      value: item.id,
+                    }))}
+                  />
+                </div>
+                <div className="d-flex mr-16">
+                  <Typography.Text>知识点</Typography.Text>
+                  <Select
+                    style={{ width: 150 }}
+                    placeholder={selectedTextbookId ? "请选择知识点" : "请先选择教材"}
+                    value={knowledgeCode || undefined}
+                    disabled={!selectedTextbookId}
+                    loading={knowledgeLoading}
+                    allowClear
+                    showSearch
+                    filterOption={(input: string, option: any) =>
+                      (option?.label ?? '').toLowerCase().includes(input.toLowerCase())
+                    }
+                    onChange={(value: any) => setKnowledgeCode(value || '')}
+                    options={knowledgeList.map((item: any) => ({
+                      label: item.name,
+                      value: item.knowledgeCode || item.knowledge_code,
+                    }))}
+                  />
+                </div>
                 <Button className="mr-16" onClick={resetList}>
                   {t('commen.reset')}
                 </Button>

app/backend/src/pages/exam/questions/compenents/detail-create.tsx

@@ -1,7 +1,8 @@
 import React, { useState, useEffect } from 'react';
-import { Modal, Form, Tabs, Radio, Spin, message } from 'antd';
+import { Modal, Form, Tabs, Radio, Spin, message, Cascader } from 'antd';
 import type { TabsProps } from 'antd';
-import { question } from '../../../../api/index';
+import type { CascaderProps } from 'antd';
+import { question, textbook } from '../../../../api/index';
 import { QuestionInput } from '../../../../compenents';
 import { QChoice } from './choice';
 import { QSelect } from './select';
@@ -11,6 +12,15 @@ import { QQa } from './qa';
 import { QCap } from './cap';
 import { useTranslation } from 'react-i18next';
 
+// 级联选择器选项类型
+interface CascaderOption {
+  value: string | number;
+  label: string;
+  children?: CascaderOption[];
+  isLeaf?: boolean;
+  loading?: boolean;
+}
+
 interface PropInterface {
   id: number;
   open: boolean;
@@ -24,6 +34,7 @@ export const QuestionsDetailCreate: React.FC<PropInterface> = ({ id, open, onCan
   const [loading, setLoading] = useState(false);
   const [refresh, setRefresh] = useState(false);
   const [type, setType] = useState('1');
+  const [cascaderOptions, setCascaderOptions] = useState<CascaderOption[]>([]); // 级联选择器选项
   const [formParams, setFormParams] = useState({
     v: 'v1',
     d: {
@@ -38,6 +49,7 @@ export const QuestionsDetailCreate: React.FC<PropInterface> = ({ id, open, onCan
       setType('1');
       form.setFieldsValue({
         level: 1,
+        knowledge_cascader: [],
       });
       setFormParams({
         v: 'v1',
@@ -46,10 +58,49 @@ export const QuestionsDetailCreate: React.FC<PropInterface> = ({ id, open, onCan
           remark: null,
         },
       });
+      // 加载教材列表作为级联选择器第一级
+      textbook.getTextbookSelectListApi().then((res: any) => {
+        if (res.data && Array.isArray(res.data)) {
+          const options: CascaderOption[] = res.data.map((item: any) => ({
+            value: item.id,
+            label: item.title,
+            isLeaf: false, // 表示有子节点
+          }));
+          setCascaderOptions(options);
+        }
+      }).catch((err) => {
+        console.error('加载教材列表失败:', err);
+      });
       setInit(false);
     }
   }, [form, open, id]);
 
+  // 级联选择器动态加载知识点
+  const loadKnowledgeData = (selectedOptions: CascaderOption[]) => {
+    const targetOption = selectedOptions[selectedOptions.length - 1];
+    targetOption.loading = true;
+
+    // 加载该教材下的知识点
+    textbook.getKnowledgeListApi(targetOption.value as number).then((res: any) => {
+      targetOption.loading = false;
+      if (res.data && Array.isArray(res.data)) {
+        targetOption.children = res.data.map((item: any) => ({
+          value: item.knowledgeCode || item.knowledge_code,
+          label: item.name,
+          isLeaf: true, // 知识点是叶子节点
+        }));
+      } else {
+        targetOption.children = [];
+      }
+      setCascaderOptions([...cascaderOptions]);
+    }).catch((err) => {
+      console.error('加载知识点失败:', err);
+      targetOption.loading = false;
+      targetOption.children = [];
+      setCascaderOptions([...cascaderOptions]);
+    });
+  };
+
   const items: TabsProps['items'] = [
     {
       key: '1',
@@ -289,8 +340,19 @@ export const QuestionsDetailCreate: React.FC<PropInterface> = ({ id, open, onCan
       }
     }
     const params = JSON.stringify(formParams);
+    // 处理知识点：从级联选择器值中提取知识点编码（第二级的值）
+    let knowledgeCode: string | undefined = undefined;
+    if (values.knowledge_cascader && values.knowledge_cascader.length > 0) {
+      // 级联选择器多选值格式: [[textbook_id, knowledge_code], ...]
+      const codes = values.knowledge_cascader
+        .filter((item: any[]) => item && item.length === 2)
+        .map((item: any[]) => item[1]); // 取第二级的值（知识点编码）
+      if (codes.length > 0) {
+        knowledgeCode = codes.join(',');
+      }
+    }
     setLoading(true);
-    question.questionStore(id, params, values.level, Number(type)).then((res: any) => {
+    question.questionStore(id, params, values.level, Number(type), knowledgeCode).then((res: any) => {
       setLoading(false);
       message.success(t('commen.saveSuccess'));
       onCancel();
@@ -413,6 +475,27 @@ export const QuestionsDetailCreate: React.FC<PropInterface> = ({ id, open, onCan
                       </Radio>
                     </Radio.Group>
                   </Form.Item>
+                  <Form.Item
+                    label="关联知识点"
+                    name="knowledge_cascader"
+                  >
+                    <Cascader
+                      options={cascaderOptions}
+                      loadData={loadKnowledgeData as CascaderProps<CascaderOption>['loadData']}
+                      multiple
+                      maxTagCount="responsive"
+                      placeholder="请选择教材和知识点（可多选）"
+                      style={{ width: '100%' }}
+                      showCheckedStrategy={Cascader.SHOW_CHILD}
+                      showSearch={{
+                        filter: (inputValue: string, path: CascaderOption[]) =>
+                          path.some(
+                            (option) =>
+                              (option.label as string).toLowerCase().indexOf(inputValue.toLowerCase()) > -1
+                          ),
+                      }}
+                    />
+                  </Form.Item>
                   <Form.Item
                     label={t('exam.question.detail.edit.name')}
                     name="content"

app/backend/src/pages/exam/questions/compenents/detail-update.tsx

@@ -1,6 +1,7 @@
 import React, { useState, useEffect } from 'react';
-import { Modal, Form, Radio, Spin, message } from 'antd';
+import { Modal, Form, Radio, Spin, message, Cascader } from 'antd';
-import { question } from '../../../../api/index';
+import type { CascaderProps } from 'antd';
+import { question, textbook } from '../../../../api/index';
 import { QuestionInput } from '../../../../compenents';
 import { QChoice } from './choice';
 import { QSelect } from './select';
@@ -10,6 +11,15 @@ import { QQa } from './qa';
 import { QCap } from './cap';
 import { useTranslation } from 'react-i18next';
 
+// 级联选择器选项类型
+interface CascaderOption {
+  value: string | number;
+  label: string;
+  children?: CascaderOption[];
+  isLeaf?: boolean;
+  loading?: boolean;
+}
+
 interface PropInterface {
   id: number;
   qid: number;
@@ -25,6 +35,7 @@ export const QuestionsDetailUpdate: React.FC<PropInterface> = ({ id, qid, open,
   const [refresh, setRefresh] = useState(false);
   const [type, setType] = useState('1');
   const [resourceUrl, setResourceUrl] = useState<ResourceUrlModel>({});
+  const [cascaderOptions, setCascaderOptions] = useState<CascaderOption[]>([]); // 级联选择器选项
   const [formParams, setFormParams] = useState({
     v: 'v1',
     d: {
@@ -40,20 +51,96 @@ export const QuestionsDetailUpdate: React.FC<PropInterface> = ({ id, qid, open,
     }
   }, [form, open, id, qid]);
 
-  const getDetail = () => {
+  const getDetail = async () => {
-    question.questionDetail(qid).then((res: any) => {
+    try {
+      // 1. 加载教材列表作为级联选择器第一级
+      const textbookRes = await textbook.getTextbookSelectListApi();
+      let options: CascaderOption[] = [];
+      if (textbookRes.data && Array.isArray(textbookRes.data)) {
+        options = textbookRes.data.map((item: any) => ({
+          value: item.id,
+          label: item.title,
+          isLeaf: false,
+        }));
+        setCascaderOptions(options);
+      }
+
+      // 2. 加载试题详情
+      const res: any = await question.questionDetail(qid);
       setResourceUrl(res.data.resource_url);
       const data = res.data.question;
       setType(String(data.type));
       const params = JSON.parse(res.data.question.content);
+
+      // 3. 处理知识点回显
+      let cascaderValue: (string | number)[][] = [];
+      if (data.knowledge_code) {
+        try {
+          // 获取知识点详情（包含bookId）
+          const knowledgeRes: any = await textbook.getKnowledgeByCodesApi(data.knowledge_code);
+          if (knowledgeRes.data && Array.isArray(knowledgeRes.data) && knowledgeRes.data.length > 0) {
+            // 获取所有需要预加载的教材ID（去重）
+            const bookIds = [...new Set(knowledgeRes.data.map((k: any) => k.bookId))];
+
+            // 预加载每个教材的知识点列表到级联选项中
+            for (const bookId of bookIds) {
+              const knowledgeListRes: any = await textbook.getKnowledgeListApi(bookId as number);
+              const targetOption = options.find(opt => opt.value === bookId);
+              if (targetOption && knowledgeListRes.data && Array.isArray(knowledgeListRes.data)) {
+                targetOption.children = knowledgeListRes.data.map((item: any) => ({
+                  value: item.knowledgeCode || item.knowledge_code,
+                  label: item.name,
+                  isLeaf: true,
+                }));
+              }
+            }
+            setCascaderOptions([...options]);
+
+            // 构建级联选择器的值 [[bookId, knowledgeCode], ...]
+            cascaderValue = knowledgeRes.data.map((k: any) => [k.bookId, k.knowledgeCode || k.knowledge_code]);
+          }
+        } catch (err) {
+          console.error('加载知识点详情失败:', err);
+        }
+      }
+
       form.setFieldsValue({
         level: data.level,
         type: String(data.type),
         content: params.d.content,
         remark: params.d.remark,
+        knowledge_cascader: cascaderValue,
       });
       setFormParams(params);
       setInit(false);
+    } catch (err) {
+      console.error('加载数据失败:', err);
+      setInit(false);
+    }
+  };
+
+  // 级联选择器动态加载知识点
+  const loadKnowledgeData = (selectedOptions: CascaderOption[]) => {
+    const targetOption = selectedOptions[selectedOptions.length - 1];
+    targetOption.loading = true;
+
+    textbook.getKnowledgeListApi(targetOption.value as number).then((res: any) => {
+      targetOption.loading = false;
+      if (res.data && Array.isArray(res.data)) {
+        targetOption.children = res.data.map((item: any) => ({
+          value: item.knowledgeCode || item.knowledge_code,
+          label: item.name,
+          isLeaf: true,
+        }));
+      } else {
+        targetOption.children = [];
+      }
+      setCascaderOptions([...cascaderOptions]);
+    }).catch((err) => {
+      console.error('加载知识点失败:', err);
+      targetOption.loading = false;
+      targetOption.children = [];
+      setCascaderOptions([...cascaderOptions]);
     });
   };
 
@@ -268,8 +355,18 @@ export const QuestionsDetailUpdate: React.FC<PropInterface> = ({ id, qid, open,
       }
     }
     const params = JSON.stringify(formParams);
+    // 处理知识点：从级联选择器值中提取知识点编码（第二级的值）
+    let knowledgeCode: string | undefined = undefined;
+    if (values.knowledge_cascader && values.knowledge_cascader.length > 0) {
+      const codes = values.knowledge_cascader
+        .filter((item: any[]) => item && item.length === 2)
+        .map((item: any[]) => item[1]);
+      if (codes.length > 0) {
+        knowledgeCode = codes.join(',');
+      }
+    }
     setLoading(true);
-    question.questionUpdate(qid, id, params, values.level, Number(type)).then((res: any) => {
+    question.questionUpdate(qid, id, params, values.level, Number(type), knowledgeCode).then((res: any) => {
       setLoading(false);
       message.success(t('commen.saveSuccess'));
       onCancel();
@@ -438,6 +535,27 @@ export const QuestionsDetailUpdate: React.FC<PropInterface> = ({ id, qid, open,
                       </Radio>
                     </Radio.Group>
                   </Form.Item>
+                  <Form.Item
+                    label="关联知识点"
+                    name="knowledge_cascader"
+                  >
+                    <Cascader
+                      options={cascaderOptions}
+                      loadData={loadKnowledgeData as CascaderProps<CascaderOption>['loadData']}
+                      multiple
+                      maxTagCount="responsive"
+                      placeholder="请选择教材和知识点（可多选）"
+                      style={{ width: '100%' }}
+                      showCheckedStrategy={Cascader.SHOW_CHILD}
+                      showSearch={{
+                        filter: (inputValue: string, path: CascaderOption[]) =>
+                          path.some(
+                            (option) =>
+                              (option.label as string).toLowerCase().indexOf(inputValue.toLowerCase()) > -1
+                          ),
+                      }}
+                    />
+                  </Form.Item>
                   <Form.Item
                     label={t('exam.question.detail.edit.name')}
                     name="content"