添加项目文件。

2026-10-12 16:22:04 +08:00
parent 7c68a0ca0a
commit aad11be43d
1000 changed files with 120807 additions and 0 deletions
@@ -0,0 +1,78 @@
+using Microsoft.AspNetCore.Http;
+using Microsoft.Extensions.Logging;
+
+namespace UserService.ImageUpload
+{
+    public class ImageUploadService : IImageUploadService
+    {
+        private readonly ILogger<ImageUploadService> _logger;
+        private static readonly string[] AllowedExtensions = { ".jpg", ".jpeg", ".png", ".gif", ".bmp", ".webp" };
+        private const long MaxFileSize = 5 * 1024 * 1024; // 5MB
+        private const string UploadFolder = "wwwroot/uploads";
+
+        public ImageUploadService(ILogger<ImageUploadService> logger)
+        {
+            _logger = logger;
+        }
+
+        public bool ValidateImage(IFormFile file, out string errorMessage)
+        {
+            errorMessage = string.Empty;
+
+            if (file == null || file.Length == 0)
+            {
+                errorMessage = "请选择要上传的文件";
+                return false;
+            }
+
+            var ext = Path.GetExtension(file.FileName).ToLowerInvariant();
+            if (!AllowedExtensions.Contains(ext))
+            {
+                errorMessage = "只支持上传图片格式：jpg、jpeg、png、gif、bmp、webp";
+                return false;
+            }
+
+            if (file.Length > MaxFileSize)
+            {
+                errorMessage = "文件大小不能超过5MB";
+                return false;
+            }
+
+            return true;
+        }
+
+        public async Task<(bool isOk, string path, string fileName, string errorMessage)> UploadImageAsync(IFormFile file)
+        {
+            if (!ValidateImage(file, out var errorMessage))
+            {
+                return (false, string.Empty, string.Empty, errorMessage);
+            }
+
+            try
+            {
+                var ext = Path.GetExtension(file.FileName).ToLowerInvariant();
+                var fileName = Guid.NewGuid().ToString("N") + ext;
+
+                var uploadPath = Path.Combine(Directory.GetCurrentDirectory(), UploadFolder);
+                if (!Directory.Exists(uploadPath))
+                {
+                    Directory.CreateDirectory(uploadPath);
+                }
+
+                var filePath = Path.Combine(uploadPath, fileName);
+                using (var stream = new FileStream(filePath, FileMode.Create))
+                {
+                    await file.CopyToAsync(stream);
+                }
+
+                var relativePath = $"/uploads/{fileName}";
+return (true, relativePath, fileName, string.Empty);
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "图片上传失败: {Message}", ex.Message);
+                return (false, string.Empty, string.Empty, $"上传失败：{ex.Message}");
+            }
+        }
+    }
+}