导出模块更新

backend-java/src/main/java/com/pharmacopoeia/controller/AdminKnowledgeController.java

@@ -298,6 +298,13 @@ public class AdminKnowledgeController {
 
     @GetMapping("/brands/export")
     public ResponseEntity<?> exportBrands(@RequestParam(required = false) String ids) {
+        if (ids == null || ids.isBlank()) {
+            byte[] bytes = brandRecommendService.exportBrandsCsvBytes(null);
+            return ResponseEntity.ok()
+                    .header(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename=brands_all.csv")
+                    .contentType(MediaType.parseMediaType("text/csv; charset=UTF-8"))
+                    .body(bytes);
+        }
         Set<Integer> idSet = parseIds(ids);
         if (idSet.isEmpty()) {
             return ResponseEntity.badRequest().body(Map.of("ok", false, "message", "请选择要导出的品牌"));
@@ -376,6 +383,13 @@ public class AdminKnowledgeController {
     @GetMapping("/brand-recommend-rules/export")
     public ResponseEntity<?> exportBrandRecommendRules(
             @RequestParam(required = false) String ids) {
+        if (ids == null || ids.isBlank()) {
+            byte[] bytes = brandRecommendService.exportRulesCsvBytes(null);
+            return ResponseEntity.ok()
+                    .header(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename=brand_recommend_rules_all.csv")
+                    .contentType(MediaType.parseMediaType("text/csv; charset=UTF-8"))
+                    .body(bytes);
+        }
         Set<Integer> idSet = parseIds(ids);
         if (idSet.isEmpty()) {
             return ResponseEntity.badRequest().body(Map.of("ok", false, "message", "请选择要导出的推荐规则"));