完善系统参数配置和数据字典管理模块

2026-09-18 17:22:56 +08:00
parent 6aca0297bb
commit 60fac00887
30 changed files with 2510 additions and 24 deletions
@@ -0,0 +1,120 @@
+using Model;
+using Model.Dto.System;
+using Model.Entity.System;
+using Service.Interface;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Threading.Tasks;
+
+namespace Service.Implement
+{
+    /// <summary>
+    /// 本地文件系统存储 Provider
+    /// 落地策略：存到 BasePath/{Bucket?}/{yyyy}/{MM}/{dd}/{guid}{ext}，URL = {Endpoint}/{Bucket?}/{yyyy}/{MM}/{dd}/{guid}{ext}
+    /// wwwroot/uploads 由 Program.UseStaticFiles 提供访问；MinIO/OSS 实现见 IFileStorageProvider 扩展点
+    /// </summary>
+    public class LocalFileStorageProvider : IFileStorageProvider
+    {
+        public string ProviderName => "local";
+
+        public async Task<Result<FileUploadResultDto>> UploadAsync(Stream stream, string originalName, long size, FileStorageConfigEntity config)
+        {
+            if (config == null) return Result<FileUploadResultDto>.Error("存储配置不能为空");
+            if (stream == null || !stream.CanRead) return Result<FileUploadResultDto>.Error("文件流不可读");
+            try
+            {
+                var basePath = ResolveBasePath(config.BasePath);
+                if (string.IsNullOrWhiteSpace(basePath))
+                    return Result<FileUploadResultDto>.Error("Local 存储必须配置 BasePath");
+
+                var ext = Path.GetExtension(originalName)?.ToLowerInvariant() ?? "";
+                var now = DateTime.Now;
+                var datePath = $"{now:yyyy}/{now:MM}/{now:dd}";
+                var fileName = $"{Guid.NewGuid():N}{ext}";
+                var storedFileName = string.IsNullOrWhiteSpace(config.Bucket)
+                    ? $"{datePath}/{fileName}"
+                    : $"{config.Bucket}/{datePath}/{fileName}";
+
+                var dir = Path.Combine(basePath,
+                    string.IsNullOrWhiteSpace(config.Bucket) ? datePath : Path.Combine(config.Bucket, datePath));
+                Directory.CreateDirectory(dir);
+                var fullPath = Path.Combine(dir, fileName);
+
+                using (var fs = new FileStream(fullPath, FileMode.CreateNew, FileAccess.Write, FileShare.None))
+                {
+                    await stream.CopyToAsync(fs);
+                }
+
+                var url = BuildUrl(config.Endpoint, config.Bucket, storedFileName);
+                return Result<FileUploadResultDto>.Success(new FileUploadResultDto
+                {
+                    FileName = storedFileName,
+                    Url = url,
+                    Ext = ext,
+                    Size = size,
+                    Provider = ProviderName
+                });
+            }
+            catch (Exception ex)
+            {
+                return Result<FileUploadResultDto>.Error("本地文件上传失败", ex);
+            }
+        }
+
+        public Task<Result> DeleteAsync(string storedFileName, FileStorageConfigEntity config)
+        {
+            if (config == null || string.IsNullOrWhiteSpace(storedFileName))
+                return Task.FromResult(Result.Error("存储配置或文件名不能为空"));
+            try
+            {
+                var basePath = ResolveBasePath(config.BasePath);
+                var fullPath = Path.Combine(basePath, storedFileName.Replace('/', Path.DirectorySeparatorChar));
+                if (File.Exists(fullPath)) File.Delete(fullPath);
+                return Task.FromResult(Result.Success());
+            }
+            catch (Exception ex)
+            {
+                return Task.FromResult(Result.Error("删除本地文件失败", ex));
+            }
+        }
+
+        public Task<Result> TestConnectionAsync(FileStorageConfigEntity config)
+        {
+            if (config == null) return Task.FromResult(Result.Error("存储配置不能为空"));
+            try
+            {
+                var basePath = ResolveBasePath(config.BasePath);
+                if (string.IsNullOrWhiteSpace(basePath))
+                    return Task.FromResult(Result.Error("Local 存储必须配置 BasePath"));
+                Directory.CreateDirectory(basePath);
+                var testFile = Path.Combine(basePath, $".storage_test_{Guid.NewGuid():N}");
+                File.WriteAllText(testFile, "ok");
+                File.Delete(testFile);
+                return Task.FromResult(Result.Success());
+            }
+            catch (Exception ex)
+            {
+                return Task.FromResult(Result.Error("Local 连接测试失败：" + ex.Message));
+            }
+        }
+
+        // ==================== 私有工具 ====================
+
+        private static string ResolveBasePath(string? basePath)
+        {
+            if (string.IsNullOrWhiteSpace(basePath)) return string.Empty;
+            // 相对路径以运行目录为基准（如 wwwroot/uploads）
+            return Path.IsPathRooted(basePath) ? basePath : Path.Combine(AppContext.BaseDirectory, basePath);
+        }
+
+        private static string BuildUrl(string? endpoint, string? bucket, string storedFileName)
+        {
+            var segs = new List<string>();
+            if (!string.IsNullOrWhiteSpace(endpoint)) segs.Add(endpoint.TrimEnd('/'));
+            if (!string.IsNullOrWhiteSpace(bucket)) segs.Add(bucket.Trim('/'));
+            segs.Add(storedFileName);
+            return string.Join('/', segs);
+        }
+    }
+}