feat: 增加技能管理模块试验性功能，等待优化

easyflow-commons/easyflow-common-file-storage/src/main/java/tech/easyflow/common/filestorage/impl/LocalFileStorageServiceImpl.java

@@ -6,6 +6,7 @@ import org.springframework.beans.factory.annotation.Value;
 import org.springframework.boot.context.event.ApplicationReadyEvent;
 import org.springframework.context.event.EventListener;
 import org.springframework.stereotype.Component;
+import org.springframework.util.StringUtils;
 import org.springframework.web.multipart.MultipartFile;
 import tech.easyflow.common.filestorage.FileStorageService;
 import tech.easyflow.common.filestorage.utils.PathGeneratorUtil;
@@ -14,8 +15,6 @@ import java.io.File;
 import java.io.IOException;
 import java.io.InputStream;
 import java.nio.file.Files;
-import java.nio.file.Path;
-import java.nio.file.Paths;
 
 
 @Component("local")
@@ -116,6 +115,20 @@ public class LocalFileStorageServiceImpl implements FileStorageService {
 
     @Override
     public String save(MultipartFile file, String prePath) {
-        return save(file);
+        try {
+            String path = PathGeneratorUtil.generateUserPath(file.getOriginalFilename());
+            if (StringUtils.hasText(prePath)) {
+                String normalized = prePath.replaceAll("^/+", "").replaceAll("/+$", "");
+                path = normalized + "/" + path.replaceAll("^/+", "");
+            }
+            File target = getLocalFile(path);
+            if (!target.getParentFile().exists() && !target.getParentFile().mkdirs()) {
+                LOG.error("创建文件失败: {} ", target.getParentFile());
+            }
+            file.transferTo(target);
+            return prefix + path;
+        } catch (Exception e) {
+            throw new RuntimeException(e.getMessage(), e);
+        }
     }
 }