教学大纲，导出选中数据，有勾选导出勾选条目，无勾选导出所有

backend/roomroot-admin/src/main/java/com/roomroot/web/controller/jwgl/ZYJXJHBController.java

@@ -119,7 +119,8 @@ public class ZYJXJHBController {
     public void exportData(
             HttpServletResponse response,
             @RequestParam(required = false) String zydh,
-            @RequestParam(required = false) Integer ty) throws Exception {
+            @RequestParam(required = false) Integer ty,
-        zyjxjhbService.exportZYJXJHBExcel(response, zydh, ty);
+            @RequestParam(required = false) List<String> bhList) throws Exception {
+        zyjxjhbService.exportZYJXJHBExcel(response, zydh, ty, bhList);
     }
 }

backend/roomroot-jwgl/src/main/java/com/roomroot/jwgl/service/ZYJXJHBService.java

@@ -82,5 +82,6 @@ public interface ZYJXJHBService {
      * @param zydh 专业代号（可选）
      * @param ty   停用标识（可选，0-正常，1-停用）
      */
-    void exportZYJXJHBExcel(jakarta.servlet.http.HttpServletResponse response, String zydh, Integer ty) throws Exception;
+    void exportZYJXJHBExcel(jakarta.servlet.http.HttpServletResponse response, String zydh, Integer ty,
+                            java.util.List<String> bhList) throws Exception;
 }

backend/roomroot-jwgl/src/main/java/com/roomroot/jwgl/service/impl/ZYJXJHBServiceImpl.java

@@ -307,16 +307,25 @@ public class ZYJXJHBServiceImpl implements ZYJXJHBService {
     }
 
     @Override
-    public void exportZYJXJHBExcel(jakarta.servlet.http.HttpServletResponse response, String zydh, Integer ty) throws Exception {
+    public void exportZYJXJHBExcel(jakarta.servlet.http.HttpServletResponse response, String zydh, Integer ty,
-        LambdaQueryWrapper<ZYJXJHB> wrapper = new LambdaQueryWrapper<>();
+            java.util.List<String> bhList) throws Exception {
-        if (zydh != null && !zydh.isEmpty()) {
+        List<ZYJXJHB> list;
-            wrapper.eq(ZYJXJHB::getZydh, zydh);
+        if (bhList != null && !bhList.isEmpty()) {
+            // 勾选导出：按编号集合取数，忽略筛选条件
+            list = zyjxjhbMapper.selectBatchIds(bhList);
+            list.sort(java.util.Comparator.comparing(ZYJXJHB::getZydh,
+                    java.util.Comparator.nullsLast(String::compareTo)));
+        } else {
+            LambdaQueryWrapper<ZYJXJHB> wrapper = new LambdaQueryWrapper<>();
+            if (zydh != null && !zydh.isEmpty()) {
+                wrapper.eq(ZYJXJHB::getZydh, zydh);
+            }
+            if (ty != null) {
+                wrapper.eq(ZYJXJHB::getTy, ty);
+            }
+            wrapper.orderByAsc(ZYJXJHB::getZydh);
+            list = zyjxjhbMapper.selectList(wrapper);
         }
-        if (ty != null) {
-            wrapper.eq(ZYJXJHB::getTy, ty);
-        }
-        wrapper.orderByAsc(ZYJXJHB::getZydh);
-        List<ZYJXJHB> list = zyjxjhbMapper.selectList(wrapper);
         String[] headers = {"专业代号", "课编号", "学期第次", "课类型", "学时", "学分", "周课时",
                 "课程定位", "模块", "成绩分制", "理论学时", "实践学时", "考试课时", "教研室代号", "简称"};
         byte[] bytes = com.roomroot.jwgl.utils.ExcelExportUtil.export("专业教学计划", headers, list,

frontend/src/views/teachBusiness/syllabus/index.vue

@@ -574,8 +574,13 @@ export default {
     /* ---------- 下载 ---------- */
     handleDownload() {
       const query = {}
-      if (this.searchForm.zydh) query.zydh = this.searchForm.zydh
+      // 勾选行优先：有勾选则只导出所选，否则按筛选条件导出
-      if (this.searchForm.ty === 0 || this.searchForm.ty === 1) query.ty = this.searchForm.ty
+      if (this.selection.length) {
+        query.bhList = this.selection.map(row => row.bh).join(',')
+      } else {
+        if (this.searchForm.zydh) query.zydh = this.searchForm.zydh
+        if (this.searchForm.ty === 0 || this.searchForm.ty === 1) query.ty = this.searchForm.ty
+      }
       exportSyllabus(query).then(blob => {
         saveAs(blob, '教学大纲.xlsx')
         this.$message.success('导出成功')