From f7e5bf0de0bff2d4a746dda35d6cc8e323d7bdd6 Mon Sep 17 00:00:00 2001
From: wanghu <wanghu@yuanhai.com>
Date: Wed, 23 Sep 2026 08:34:09 +0800
Subject: [PATCH] =?UTF-8?q?=E5=AD=A6=E7=A7=91?=
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---
 .../service/impl/SubjectDictService.java      | 78 +++++++++++++++++++
 1 file changed, 78 insertions(+)
 create mode 100644 src/main/java/com/yunhai/homework/service/impl/SubjectDictService.java

diff --git a/src/main/java/com/yunhai/homework/service/impl/SubjectDictService.java b/src/main/java/com/yunhai/homework/service/impl/SubjectDictService.java
new file mode 100644
index 0000000..8315dec
--- /dev/null
+++ b/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;
+    }
+}