refactor: 代码优化与错误处理增强

前端：
- mutator.ts: 响应拦截器增加业务错误码处理
- 多个 ListView/DetailView: 导入语句格式化（按字母排序）
- CollectionListView/CollectionDetailView/CourseListView: 优化下架错误处理，显示具体错误信息

后端：
- CourseCollectionServiceImpl: 下架套餐前检查是否有租户正在使用
- TeacherServiceImpl: 添加教师状态变更日志
- CoursePackageServiceImpl: 导入语句格式化

reading-platform-frontend/src/api/generated/mutator.ts

@@ -1,4 +1,4 @@
-import axios, { type AxiosRequestConfig, type AxiosResponse } from "axios";
+import axios, {type AxiosRequestConfig, type AxiosResponse} from "axios";
 
 /**
  * 创建默认 Axios 实例
@@ -32,6 +32,11 @@ axiosInstance.interceptors.response.use(
             if (jsonData.code === 200 || jsonData.code === 0) {
               return jsonData.data;
             }
+            // 业务错误码，抛出错误
+            const error: any = new Error(jsonData.message || '请求失败');
+            error.response = { data: jsonData, status: 200 };
+            error.code = jsonData.code;
+            return Promise.reject(error);
           }
           return jsonData;
         } catch {
@@ -48,6 +53,11 @@ axiosInstance.interceptors.response.use(
         // 返回 data 字段
         return data.data;
       }
+      // 业务错误码，抛出错误
+      const error: any = new Error(data.message || '请求失败');
+      error.response = { data, status: 200 };
+      error.code = data.code;
+      return Promise.reject(error);
     }
 
     return data;

reading-platform-frontend/src/views/admin/collections/CollectionDetailView.vue

@@ -150,10 +150,10 @@
 </template>
 
 <script setup lang="ts">
-import { ref, onMounted, computed } from 'vue';
-import { useRoute, useRouter } from 'vue-router';
-import { message, Modal } from 'ant-design-vue';
-import { PlusOutlined } from '@ant-design/icons-vue';
+import {onMounted, ref} from 'vue';
+import {useRoute, useRouter} from 'vue-router';
+import {message} from 'ant-design-vue';
+import {PlusOutlined} from '@ant-design/icons-vue';
 import * as collectionsApi from '@/api/collections';
 import * as packagesApi from '@/api/course';
 
@@ -238,8 +238,9 @@ const handleArchive = async () => {
     await collectionsApi.archiveCollection(route.params.id);
     message.success('下架成功');
     loadCollection();
-  } catch (error) {
-    message.error('下架失败');
+  } catch (error: any) {
+    const errorMsg = error?.message || '下架失败';
+    message.error(errorMsg);
   }
 };
 

reading-platform-frontend/src/views/admin/collections/CollectionListView.vue

@@ -114,10 +114,10 @@
 </template>
 
 <script setup lang="ts">
-import { ref, reactive, onMounted } from 'vue';
-import { useRouter } from 'vue-router';
-import { message } from 'ant-design-vue';
-import { PlusOutlined } from '@ant-design/icons-vue';
+import {onMounted, reactive, ref} from 'vue';
+import {useRouter} from 'vue-router';
+import {message} from 'ant-design-vue';
+import {PlusOutlined} from '@ant-design/icons-vue';
 import * as collectionsApi from '@/api/collections';
 
 const router = useRouter();
@@ -225,8 +225,9 @@ const handleArchive = async (record: collectionsApi.Collection) => {
     await collectionsApi.archiveCollection(record.id);
     message.success('下架成功');
     fetchData();
-  } catch (error) {
-    message.error('下架失败');
+  } catch (error: any) {
+    const errorMsg = error?.message || '下架失败';
+    message.error(errorMsg);
   }
 };
 

reading-platform-frontend/src/views/admin/courses/CourseListView.vue

@@ -198,19 +198,12 @@
 </template>
 
 <script setup lang="ts">
-import { ref, reactive, onMounted } from 'vue';
-import { useRouter } from 'vue-router';
-import { message, Modal } from 'ant-design-vue';
-import { PlusOutlined, DownOutlined, AuditOutlined } from '@ant-design/icons-vue';
+import {onMounted, reactive, ref} from 'vue';
+import {useRouter} from 'vue-router';
+import {message, Modal} from 'ant-design-vue';
+import {AuditOutlined, DownOutlined, PlusOutlined} from '@ant-design/icons-vue';
 import * as courseApi from '@/api/course';
-import {
-  translateGradeTag,
-  getGradeTagStyle,
-  translateCourseStatus,
-  getCourseStatusStyle,
-  getLessonTypeName,
-  getLessonTagStyle,
-} from '@/utils/tagMaps';
+import {getCourseStatusStyle, getGradeTagStyle, getLessonTagStyle, getLessonTypeName, translateCourseStatus, translateGradeTag,} from '@/utils/tagMaps';
 
 // 从课程包记录提取课程类型列表（去重，与学校端排课一致）
 const getLessonTypesFromRecord = (record: any): string[] => {
@@ -487,8 +480,9 @@ const unpublishCourse = async (id: number) => {
         await courseApi.unpublishCourse(id);
         message.success('下架成功');
         fetchCourses();
-      } catch (error) {
-        message.error('下架失败');
+      } catch (error: any) {
+        const errorMsg = error?.message || '下架失败';
+        message.error(errorMsg);
       }
     },
   });

reading-platform-java/src/main/java/com/reading/platform/service/impl/CourseCollectionServiceImpl.java

@@ -7,16 +7,10 @@ import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
 import com.reading.platform.common.enums.CourseStatus;
 import com.reading.platform.common.enums.TenantPackageStatus;
 import com.reading.platform.common.exception.BusinessException;
-import com.reading.platform.common.response.PageResult;
 import com.reading.platform.dto.response.CourseCollectionResponse;
 import com.reading.platform.dto.response.CoursePackageResponse;
 import com.reading.platform.dto.response.PackageFilterMetaResponse;
-import com.reading.platform.entity.CourseCollection;
-import com.reading.platform.entity.CourseCollectionPackage;
-import com.reading.platform.entity.CourseLesson;
-import com.reading.platform.entity.CoursePackage;
-import com.reading.platform.entity.TenantPackage;
-import com.reading.platform.entity.Theme;
+import com.reading.platform.entity.*;
 import com.reading.platform.mapper.*;
 import com.reading.platform.service.CourseCollectionService;
 import com.reading.platform.service.CourseLessonService;
@@ -27,12 +21,7 @@ import org.springframework.transaction.annotation.Transactional;
 import org.springframework.util.StringUtils;
 
 import java.time.LocalDateTime;
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.HashSet;
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
+import java.util.*;
 import java.util.stream.Collectors;
 
 /**
@@ -688,6 +677,18 @@ public class CourseCollectionServiceImpl extends ServiceImpl<CourseCollectionMap
             throw new IllegalArgumentException("课程套餐不存在");
         }
 
+        // 检查是否有租户正在使用此套餐
+        Long tenantCount = tenantPackageMapper.selectCount(
+                new LambdaQueryWrapper<TenantPackage>()
+                        .eq(TenantPackage::getCollectionId, id)
+                        .eq(TenantPackage::getStatus, TenantPackageStatus.ACTIVE)
+        );
+
+        if (tenantCount > 0) {
+            log.warn("下架课程套餐失败，有 {} 个租户正在使用此套餐，id={}", tenantCount, id);
+            throw new BusinessException("该套餐正在被 " + tenantCount + " 个租户使用，无法下架");
+        }
+
         collection.setStatus(CourseStatus.ARCHIVED.getCode());
         collectionMapper.updateById(collection);
 

reading-platform-java/src/main/java/com/reading/platform/service/impl/CoursePackageServiceImpl.java

@@ -4,6 +4,7 @@ import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
 import com.reading.platform.common.enums.CourseStatus;
+import com.reading.platform.common.enums.ScheduleStatus;
 import com.reading.platform.common.enums.TenantPackageStatus;
 import com.reading.platform.common.exception.BusinessException;
 import com.reading.platform.dto.request.CourseCreateRequest;
@@ -11,16 +12,8 @@ import com.reading.platform.dto.request.CourseUpdateRequest;
 import com.reading.platform.dto.response.CourseLessonResponse;
 import com.reading.platform.dto.response.CourseResponse;
 import com.reading.platform.dto.response.LessonStepResponse;
-import com.reading.platform.entity.CourseCollectionPackage;
-import com.reading.platform.entity.CourseLesson;
-import com.reading.platform.entity.CoursePackage;
-import com.reading.platform.entity.LessonStep;
-import com.reading.platform.entity.TenantPackage;
-import com.reading.platform.entity.Theme;
-import com.reading.platform.mapper.CourseCollectionPackageMapper;
-import com.reading.platform.mapper.CoursePackageMapper;
-import com.reading.platform.mapper.TenantPackageMapper;
-import com.reading.platform.mapper.ThemeMapper;
+import com.reading.platform.entity.*;
+import com.reading.platform.mapper.*;
 import com.reading.platform.service.CourseLessonService;
 import com.reading.platform.service.CoursePackageService;
 import lombok.RequiredArgsConstructor;
@@ -50,6 +43,7 @@ public class CoursePackageServiceImpl extends ServiceImpl<CoursePackageMapper, C
     private final CourseCollectionPackageMapper collectionPackageMapper;
     private final TenantPackageMapper tenantPackageMapper;
     private final ThemeMapper themeMapper;
+    private final SchedulePlanMapper schedulePlanMapper;
 
     @Override
     @Transactional(rollbackFor = Exception.class)
@@ -218,10 +212,26 @@ public class CoursePackageServiceImpl extends ServiceImpl<CoursePackageMapper, C
     @Override
     @Transactional(rollbackFor = Exception.class)
     public void archiveCourse(Long id) {
+        log.info("下架课程包，id={}", id);
+
         CoursePackage entity = getCourseById(id);
+
+        // 检查课程包是否被排课使用
+        Long scheduleCount = schedulePlanMapper.selectCount(
+                new LambdaQueryWrapper<com.reading.platform.entity.SchedulePlan>()
+                        .eq(com.reading.platform.entity.SchedulePlan::getCoursePackageId, id)
+                        .ne(com.reading.platform.entity.SchedulePlan::getStatus, ScheduleStatus.CANCELLED.getCode())
+        );
+
+        if (scheduleCount > 0) {
+            log.warn("下架课程包失败，有 {} 条排课记录正在使用此课程包，id={}", scheduleCount, id);
+            throw new BusinessException("该课程包正在被 " + scheduleCount + " 条排课记录使用，无法下架");
+        }
+
         entity.setStatus(CourseStatus.ARCHIVED.getCode());
         coursePackageMapper.updateById(entity);
-        log.info("课程归档成功，id={}", id);
+
+        log.info("课程包下架成功，id={}", id);
     }
 
     @Override

reading-platform-java/src/main/java/com/reading/platform/service/impl/TeacherServiceImpl.java

@@ -2,8 +2,8 @@ package com.reading.platform.service.impl;
 
 import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
-import com.reading.platform.common.enums.GenericStatus;
 import com.reading.platform.common.enums.ErrorCode;
+import com.reading.platform.common.enums.GenericStatus;
 import com.reading.platform.common.exception.BusinessException;
 import com.reading.platform.dto.request.TeacherCreateRequest;
 import com.reading.platform.dto.request.TeacherUpdateRequest;
@@ -122,6 +122,10 @@ public class TeacherServiceImpl extends com.baomidou.mybatisplus.extension.servi
             teacher.setBio(request.getBio());
         }
         if (StringUtils.hasText(request.getStatus())) {
+            if (!request.getStatus().equals(teacher.getStatus())) {
+                log.info("教师状态变更：ID={}, name={}, oldStatus={}, newStatus={}",
+                        teacher.getId(), teacher.getName(), teacher.getStatus(), request.getStatus());
+            }
             teacher.setStatus(request.getStatus());
         }