feat(file): 添加批量上传文件接口

- 新增接口支持多个文件的批量上传功能
- 根据云存储配置处理上传路径与访问URL
- 保存上传文件信息至数据库，包括缩略图和下载链接
- 添加权限控制，需具有sys:file:upload权限
- 捕获上传异常并返回失败信息

src/main/java/com/gxwebsoft/cms/controller/CmsCaseController.java

@@ -50,10 +50,6 @@ public class CmsCaseController extends BaseController {
     @Operation(summary = "添加客户案例")
     @PostMapping()
     public ApiResult<?> save(@RequestBody CmsCase cmsCase) {
-        User loginUser = getLoginUser();
-        if (loginUser != null) {
-            cmsCase.setUserId(loginUser.getUserId());
-        }
         if (cmsCaseService.save(cmsCase)) {
             return success("添加成功");
         }

src/main/java/com/gxwebsoft/common/system/controller/FileController.java

@@ -86,6 +86,50 @@ public class FileController extends BaseController {
         }
     }
 
+    @PreAuthorize("hasAuthority('sys:file:upload')")
+    @Operation(summary = "批量上传文件")
+    @PostMapping("/uploads")
+    public ApiResult<List<FileRecord>> uploads(@RequestParam("files") MultipartFile[] files,
+                                               HttpServletRequest request) {
+        List<FileRecord> list = new ArrayList<>();
+        try {
+            String dir = getUploadDir();
+            String requestURL = config.getFileServer() + "/api/file";
+            // 云存储配置(与单文件上传保持一致)
+            final String s = redisUtil.get("setting:upload:" + getTenantId());
+            final JSONObject jsonObject = JSONObject.parseObject(s);
+            final String uploadMethod = jsonObject == null ? "file" : jsonObject.getString("uploadMethod");
+            final String bucketDomain = jsonObject == null ? "" : jsonObject.getString("bucketDomain");
+            for (MultipartFile file : files) {
+                File upload = FileServerUtil.upload(file, dir, config.getUploadUuidName());
+                String path = upload.getAbsolutePath().replace("\\", "/").substring(dir.length() - 1);
+                String originalName = file.getOriginalFilename();
+                FileRecord result = new FileRecord();
+                result.setCreateUserId(getLoginUserId());
+                result.setName(StrUtil.isBlank(originalName) ? upload.getName() : originalName);
+                result.setLength(upload.length());
+                result.setPath(path);
+                String contentType = FileServerUtil.getContentType(upload);
+                result.setContentType(contentType);
+                if (FileServerUtil.isImage(contentType)) {
+                    result.setThumbnail(requestURL + "/thumbnail" + path);
+                }
+                result.setDownloadUrl(config.getFileServer() + "/download" + path);
+                String finalPath = path;
+                if (uploadMethod != null && !"file".equals(uploadMethod)) {
+                    finalPath = bucketDomain + path;
+                }
+                result.setUrl(finalPath);
+                fileRecordService.save(result);
+                list.add(result);
+            }
+            return success(list);
+        } catch (Exception e) {
+            e.printStackTrace();
+            return fail("上传失败", list).setError(e.toString());
+        }
+    }
+
     @PreAuthorize("hasAuthority('sys:file:upload')")
     @Operation(summary = "上传base64文件")
     @PostMapping("/upload/base64")