学科

src/main/java/com/yunhai/homework/model/homework/HomeworkStatisticsVo.java

@@ -52,6 +52,8 @@ public class HomeworkStatisticsVo {
         private Integer id;
         private String title;
         private String subject;
+        /** 学科名称（本校学科字典解析，未命中回退编码） */
+        private String subjectName;
         /** 旧契约四态派生值：draft / collecting / closed / done */
         private String hwStatus;
         private String hwStatusDesc;

src/main/java/com/yunhai/homework/model/homework/HomeworkVo.java

@@ -56,6 +56,9 @@ public class HomeworkVo {
     /** 学科（字典值） */
     private String subject;
 
+    /** 学科名称（本校学科字典解析，未命中回退编码） */
+    private String subjectName;
+
     /** 截止时间（前端契约字段名 deadline） */
     private LocalDateTime deadline;
 

src/main/java/com/yunhai/homework/model/v2/HomeworkV2Vo.java

@@ -16,9 +16,12 @@ public class HomeworkV2Vo {
 
     private String title;
 
-    /** 学科 */
+    /** 学科编码 */
     private String subject;
 
+    /** 学科名称（本校学科字典解析，未命中回退编码） */
+    private String subjectName;
+
     /** 作业说明（富文本；列表场景可置空省流） */
     private String description;
 

src/main/java/com/yunhai/homework/model/v2/StudentHomeworkVo.java

@@ -17,6 +17,9 @@ public class StudentHomeworkVo {
     /** 学科 */
     private String subject;
 
+    /** 学科名称（本校学科字典解析，未命中回退编码） */
+    private String subjectName;
+
     /** 任课教师（发布人姓名） */
     private String teacherName;
 

src/main/java/com/yunhai/homework/service/impl/HomeworkService.java

@@ -92,6 +92,9 @@ public class HomeworkService implements IHomeworkService {
     @Autowired
     private IDictService dictService;
 
+    @Autowired
+    private SubjectDictService subjectDictService;
+
     private static final int PUBLISHED = HomeworkStatusEnum.PUBLISHED.getCode();
 
     // ============================ 发作业 ============================
@@ -269,8 +272,9 @@ public class HomeworkService implements IHomeworkService {
 
         Page<Homework> page = homeworkRepository.findAll(userSpec(query, readIds), pageable);
 
+        Map<String, String> subjectNames = subjectDictService.nameMap();
         List<HomeworkVo> content = page.getContent().stream()
-                .map(n -> toVo(n, readIds.contains(n.getId())))
+                .map(n -> toVo(n, readIds.contains(n.getId()), subjectNames))
                 .collect(Collectors.toList());
 
         long unreadCount = 0;
@@ -322,8 +326,9 @@ public class HomeworkService implements IHomeworkService {
     @Override
     public BasePageResult<HomeworkVo> adminList(HomeworkQuery query, Pageable pageable) {
         Page<Homework> page = homeworkRepository.findAll(adminSpec(query), pageable);
+        Map<String, String> subjectNames = subjectDictService.nameMap();
         List<HomeworkVo> content = page.getContent().stream()
-                .map(n -> toVo(n, false))
+                .map(n -> toVo(n, false, subjectNames))
                 .collect(Collectors.toList());
         // 批量填充附件ID串（"1,2,3"）：列表页"附件下载"入口依赖 UpFile 字段
         if (!content.isEmpty()) {
@@ -431,7 +436,7 @@ public class HomeworkService implements IHomeworkService {
                 .orElseThrow(() -> new BizException(ErrorCode.FORBIDDEN, "作业不存在: " + id));
         Integer userId = UserContext.getUserId();
         boolean read = homeworkReadRepository.existsByHomeworkIdAndReaderId(id, userId);
-        HomeworkVo vo = toVo(entity, read);
+        HomeworkVo vo = toVo(entity, read, subjectDictService.nameMap());
         if (!read) {
             markRead(id);
             vo.setRead(true);
@@ -445,7 +450,7 @@ public class HomeworkService implements IHomeworkService {
     public HomeworkVo getDetail(Integer id) {
         Homework entity = homeworkRepository.findById(id)
                 .orElseThrow(() -> new BizException(ErrorCode.FORBIDDEN, "作业不存在: " + id));
-        HomeworkVo vo = toVo(entity, false);
+        HomeworkVo vo = toVo(entity, false, subjectDictService.nameMap());
         vo.setReadCount(homeworkReadRepository.countByHomeworkId(entity.getId()));
         return vo;
     }
@@ -779,6 +784,7 @@ public class HomeworkService implements IHomeworkService {
         Map<Integer, List<Integer>> classMap = homeworkClassRepository.findByHomeworkIds(hwIds).stream()
                 .collect(Collectors.groupingBy(HomeworkClass::getHomeworkId,
                         Collectors.mapping(HomeworkClass::getClassId, Collectors.toList())));
+        Map<String, String> subjectNames = subjectDictService.nameMap();
 
         long pendingTotal = 0;
         double submitRateSum = 0;
@@ -794,6 +800,7 @@ public class HomeworkService implements IHomeworkService {
             d.setId(h.getId());
             d.setTitle(h.getTitle());
             d.setSubject(h.getSubject());
+            d.setSubjectName(subjectDictService.resolve(h.getSubject(), subjectNames));
             String legacy = legacyHwStatus(h);
             d.setHwStatus(legacy);
             d.setHwStatusDesc(legacyHwStatusDesc(legacy));
@@ -1009,7 +1016,7 @@ public class HomeworkService implements IHomeworkService {
         }
     }
 
-    private HomeworkVo toVo(Homework entity, boolean read) {
+    private HomeworkVo toVo(Homework entity, boolean read, Map<String, String> subjectNames) {
         HomeworkVo vo = new HomeworkVo();
         BeanUtils.copyProperties(entity, vo);
         vo.setTypeDesc(HomeworkTypeEnum.of(entity.getType()).getDesc());
@@ -1017,6 +1024,7 @@ public class HomeworkService implements IHomeworkService {
         // V2 扩展字段回填（hwStatus 输出旧四态派生值，submitType/deadline 手工映射）
         vo.setDeadline(entity.getDeadlineAt());
         vo.setSubmitType(SubmitTypes.parse(entity.getSubmitType()));
+        vo.setSubjectName(subjectDictService.resolve(entity.getSubject(), subjectNames));
         String legacy = legacyHwStatus(entity);
         vo.setHwStatus(legacy);
         vo.setHwStatusDesc(legacyHwStatusDesc(legacy));

src/main/java/com/yunhai/homework/service/impl/StudentHomeworkService.java

@@ -71,6 +71,9 @@ public class StudentHomeworkService {
     @Autowired
     private RosterService rosterService;
 
+    @Autowired
+    private SubjectDictService subjectDictService;
+
     // ============================ 页 1：作业列表 ============================
 
     /**
@@ -96,8 +99,9 @@ public class StudentHomeworkService {
                 .collect(Collectors.toMap(HomeworkSubmission::getHomeworkId, s -> s, (a, b) -> a));
 
         List<StudentHomeworkVo> rows = new ArrayList<>();
+        Map<String, String> subjectNames = subjectDictService.nameMap();
         for (Homework h : homeworks) {
-            StudentHomeworkVo vo = toVo(h, myLatest.get(h.getId()));
+            StudentHomeworkVo vo = toVo(h, myLatest.get(h.getId()), subjectNames);
             rows.add(vo);
         }
         rows = filterByTab(rows, tab);
@@ -150,7 +154,7 @@ public class StudentHomeworkService {
         HomeworkSubmission latest = myLatest(homework.getId());
 
         StudentHomeworkDetailVo vo = new StudentHomeworkDetailVo();
-        copyBase(vo, homework, latest);
+        copyBase(vo, homework, latest, subjectDictService.nameMap());
         vo.setDescription(homework.getContent());
         vo.setAttachments(homeworkAttachmentRepository.findByHomeworkIdOrderBySortAscIdAsc(id).stream()
                 .map(this::toAttachmentItem).collect(Collectors.toList()));
@@ -398,16 +402,18 @@ public class StudentHomeworkService {
                 .orElse(null);
     }
 
-    private StudentHomeworkVo toVo(Homework h, HomeworkSubmission latest) {
+    private StudentHomeworkVo toVo(Homework h, HomeworkSubmission latest, Map<String, String> subjectNames) {
         StudentHomeworkVo vo = new StudentHomeworkVo();
-        copyBase(vo, h, latest);
+        copyBase(vo, h, latest, subjectNames);
         return vo;
     }
 
-    private void copyBase(StudentHomeworkVo vo, Homework h, HomeworkSubmission latest) {
+    private void copyBase(StudentHomeworkVo vo, Homework h, HomeworkSubmission latest,
+                          Map<String, String> subjectNames) {
         vo.setId(h.getId());
         vo.setTitle(h.getTitle());
         vo.setSubject(h.getSubject());
+        vo.setSubjectName(subjectDictService.resolve(h.getSubject(), subjectNames));
         vo.setTeacherName(h.getPublisherName());
         vo.setDeadlineAt(h.getDeadlineAt());
         vo.setSubmitType(SubmitTypes.parse(h.getSubmitType()));

src/main/java/com/yunhai/homework/service/impl/SubjectDictService.java

@@ -0,0 +1,78 @@
+package com.yunhai.homework.service.impl;
+
+import com.yunhai.homework.model.bsch.SchInfoDto;
+import com.yunhai.homework.model.bsch.SchSubjectDto;
+import com.yunhai.homework.service.IClassService;
+import com.yunhai.homework.utils.UserContext;
+import com.yunhai.platform.apistd.BizException;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.stereotype.Service;
+import org.springframework.util.StringUtils;
+
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * 本校学科字典门面（bschclass SubInfo/GetSchSublist）：
+ * 学科编码 → 名称解析，供各作业列表回填 subjectName 与学科清单输出共用。
+ * 无学校身份或远端不可用时降级为空字典，仅影响名称展示（回退编码），不阻断业务本身。
+ */
+@Service
+public class SubjectDictService {
+
+    private static final Logger log = LoggerFactory.getLogger(SubjectDictService.class);
+
+    private final IClassService classService;
+
+    public SubjectDictService(IClassService classService) {
+        this.classService = classService;
+    }
+
+    /**
+     * 当前登录人学校的学科字典（保留 SubInfo 排序号，学科清单场景按其排序输出）。
+     */
+    public List<SchSubjectDto> dictionary() {
+        try {
+            Integer schId = UserContext.getSchId();
+            if (schId == null) {
+                return Collections.emptyList();
+            }
+            SchInfoDto sch = classService.getSchFirst(schId);
+            if (sch == null || !StringUtils.hasText(sch.getSchSerId())) {
+                return Collections.emptyList();
+            }
+            return classService.getSchSubList(sch.getSchSerId());
+        } catch (BizException e) {
+            log.warn("[subjectDict] 本校学科字典拉取失败, 降级为编码展示: {}", e.getMessage());
+            return Collections.emptyList();
+        }
+    }
+
+    /**
+     * 学科编码 → 名称映射（列表回填 subjectName 用，一次批量外呼）。
+     */
+    public Map<String, String> nameMap() {
+        Map<String, String> names = new HashMap<>();
+        for (SchSubjectDto subject : dictionary()) {
+            if (subject != null && StringUtils.hasText(subject.getSubId())
+                    && StringUtils.hasText(subject.getSubName())) {
+                names.put(subject.getSubId(), subject.getSubName());
+            }
+        }
+        return names;
+    }
+
+    /**
+     * 学科编码 → 名称：映射命中取名称，未命中或映射缺失时回退编码本身。
+     */
+    public String resolve(String code, Map<String, String> names) {
+        if (!StringUtils.hasText(code)) {
+            return null;
+        }
+        String name = names == null ? null : names.get(code);
+        return StringUtils.hasText(name) ? name : code;
+    }
+}

src/main/java/com/yunhai/homework/service/impl/TeacherHomeworkV2Service.java

@@ -125,6 +125,9 @@ public class TeacherHomeworkV2Service {
     @Autowired
     private IClassService classService;
 
+    @Autowired
+    private SubjectDictService subjectDictService;
+
     // ============================ 页 1：创建 / 编辑 ============================
 
     /**
@@ -254,7 +257,8 @@ public class TeacherHomeworkV2Service {
                         Arrays.asList(HwStatusEnum.DRAFT_UNPUBLISHED.getCode(), HwStatusEnum.DRAFT_SCHEDULED.getCode()),
                         query),
                 PageUtils.toPageable(query, sort == null ? Sort.by(Sort.Direction.DESC, "updateTime") : sort));
-        return PageUtils.toResult(page.map(h -> toVo(h, false, false)));
+        Map<String, String> subjectNames = subjectDictService.nameMap();
+        return PageUtils.toResult(page.map(h -> toVo(h, false, false, subjectNames)));
     }
 
     // ============================ 页 3：已发布列表 ============================
@@ -271,7 +275,8 @@ public class TeacherHomeworkV2Service {
         Page<Homework> page = homeworkRepository.findAll(
                 ownedStatusSpec(UserContext.getUserId(), statuses, query),
                 PageUtils.toPageable(query, sort == null ? Sort.by(Sort.Direction.DESC, "publishedAt") : sort));
-        return PageUtils.toResult(page.map(h -> toVo(h, false, true)));
+        Map<String, String> subjectNames = subjectDictService.nameMap();
+        return PageUtils.toResult(page.map(h -> toVo(h, false, true, subjectNames)));
     }
 
     private Specification<Homework> ownedStatusSpec(Integer publisherId, List<String> statuses, TeacherHomeworkQuery query) {
@@ -391,7 +396,7 @@ public class TeacherHomeworkV2Service {
     @Transactional(readOnly = true)
     public HomeworkV2Vo detail(Integer id) {
         Homework homework = stateService.requireOwned(id, UserContext.getUserId());
-        return toVo(homework, true, !HwStatusEnum.of(homework.getHwStatus()).isDraft());
+        return toVo(homework, true, !HwStatusEnum.of(homework.getHwStatus()).isDraft(), subjectDictService.nameMap());
     }
 
     /**
@@ -1068,20 +1073,7 @@ public class TeacherHomeworkV2Service {
      * 仅影响名称解析（学科名称回退为编码），不阻断学科清单本身。
      */
     private List<SchSubjectDto> subjectDictionary() {
-        try {
+        return subjectDictService.dictionary();
-            Integer schId = UserContext.getSchId();
-            if (schId == null) {
-                return Collections.emptyList();
-            }
-            SchInfoDto sch = classService.getSchFirst(schId);
-            if (sch == null || !StringUtils.hasText(sch.getSchSerId())) {
-                return Collections.emptyList();
-            }
-            return classService.getSchSubList(sch.getSchSerId());
-        } catch (BizException e) {
-            log.warn("[subjectDictionary] 本校学科字典拉取失败, 降级为编码展示: {}", e.getMessage());
-            return Collections.emptyList();
-        }
     }
 
     /**
@@ -1120,11 +1112,13 @@ public class TeacherHomeworkV2Service {
 
     // ============================ VO 组装 ============================
 
-    private HomeworkV2Vo toVo(Homework h, boolean withAttachments, boolean withProgress) {
+    private HomeworkV2Vo toVo(Homework h, boolean withAttachments, boolean withProgress,
+                              Map<String, String> subjectNames) {
         HomeworkV2Vo vo = new HomeworkV2Vo();
         vo.setId(h.getId());
         vo.setTitle(h.getTitle());
         vo.setSubject(h.getSubject());
+        vo.setSubjectName(subjectDictService.resolve(h.getSubject(), subjectNames));
         vo.setDescription(withAttachments ? h.getContent() : null);
         vo.setHwStatus(h.getHwStatus());
         vo.setHwStatusDesc(HwStatusEnum.of(h.getHwStatus()).getDesc());