添加上传最大值

src/main/java/com/chinaunicom/zyhy/ebtp/supplier/config/service/FileStorageService.java

@@ -18,26 +18,38 @@ public class FileStorageService {
     @Value("${file.upload-dir}")
     private String uploadDir;
 
+    private static final long MAX_FILE_SIZE = 10 * 1024 * 1024; // 10MB，单位是字节
+
     public String storeFile(MultipartFile file) {
+        // 检查文件大小
+        if (file.getSize() > MAX_FILE_SIZE) {
+            throw new RuntimeException("文件大小超过了最大限制（10MB）");
+        }
+
         try {
             String originalName = StringUtils.cleanPath(file.getOriginalFilename());
             String ext = "";
 
+            // 获取文件扩展名
             int i = originalName.lastIndexOf(".");
             if (i >= 0) {
                 ext = originalName.substring(i);
             }
 
+            // 生成新的文件名，使用UUID来避免文件名冲突
             String filename = UUID.randomUUID().toString() + ext;
             Path copyLocation = Paths.get(uploadDir).toAbsolutePath().normalize().resolve(filename);
 
+            // 确保目标目录存在
             Files.createDirectories(copyLocation.getParent());
+
+            // 将文件内容写入目标路径
             Files.copy(file.getInputStream(), copyLocation, StandardCopyOption.REPLACE_EXISTING);
 
             return filename;
 
         } catch (IOException ex) {
-            throw new RuntimeException("Could not store file: " + ex.getMessage());
+            throw new RuntimeException("存储文件时出错: " + ex.getMessage());
         }
     }
 }