轮播应用OK
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Zhanghu
244
src/DRS9.Dashboard.Server/Controllers/FileUploadController.cs
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244
src/DRS9.Dashboard.Server/Controllers/FileUploadController.cs
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using Microsoft.AspNetCore.Mvc;
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namespace DRS9.Dashboard.Server.Controllers;
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[ApiController]
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[Route("api/admin/[controller]")]
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// [Authorize] - 暂时禁用认证以便测试
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public class UploadController : ControllerBase
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{
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private readonly IWebHostEnvironment _environment;
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private readonly ILogger<UploadController> _logger;
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// 允许的图片扩展名
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private static readonly string[] ImageExtensions = { ".png", ".jpg", ".jpeg", ".gif", ".bmp", ".svg", ".webp" };
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// 允许的视频扩展名
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private static readonly string[] VideoExtensions = { ".mp4", ".webm", ".ogg", ".mov", ".avi", ".mkv" };
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// 最大文件大小 (50MB)
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private const long MaxFileSize = 50 * 1024 * 1024;
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public UploadController(IWebHostEnvironment environment, ILogger<UploadController> logger)
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{
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_environment = environment;
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_logger = logger;
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}
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/// <summary>
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/// 上传文件（图片或视频）
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/// </summary>
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[HttpPost]
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public async Task<ActionResult<object>> UploadFile(IFormFile file)
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{
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if (file == null || file.Length == 0)
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{
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return BadRequest(new { success = false, message = "请选择文件" });
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}
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// 检查文件大小
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if (file.Length > MaxFileSize)
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{
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return BadRequest(new { success = false, message = $"文件大小不能超过 {MaxFileSize / 1024 / 1024}MB" });
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}
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var extension = Path.GetExtension(file.FileName).ToLowerInvariant();
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// 确定文件类型
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string itemType;
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string subFolder;
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if (ImageExtensions.Contains(extension))
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{
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itemType = "Image";
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subFolder = "images";
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}
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else if (VideoExtensions.Contains(extension))
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{
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itemType = "Video";
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subFolder = "videos";
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}
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else
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{
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return BadRequest(new { success = false, message = "不支持的文件类型，请上传图片或视频" });
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}
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try
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{
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// 创建上传目录
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var uploadsFolder = Path.Combine(_environment.WebRootPath, "uploads", subFolder);
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if (!Directory.Exists(uploadsFolder))
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{
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Directory.CreateDirectory(uploadsFolder);
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}
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// 生成唯一文件名
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var uniqueFileName = $"{Guid.NewGuid()}{extension}";
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var filePath = Path.Combine(uploadsFolder, uniqueFileName);
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// 保存文件
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using (var stream = new FileStream(filePath, FileMode.Create))
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{
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await file.CopyToAsync(stream);
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}
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// 返回文件 URL
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var fileUrl = $"/uploads/{subFolder}/{uniqueFileName}";
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_logger.LogInformation("文件上传成功: {FileName} -> {Url}", file.FileName, fileUrl);
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return Ok(new
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{
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success = true,
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message = "上传成功",
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url = fileUrl,
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itemType = itemType,
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fileName = file.FileName
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});
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}
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catch (Exception ex)
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{
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_logger.LogError(ex, "文件上传失败");
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return StatusCode(500, new { success = false, message = $"上传失败: {ex.Message}" });
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}
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}
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/// <summary>
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/// 批量上传文件
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/// </summary>
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[HttpPost("batch")]
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public async Task<ActionResult<object>> UploadFiles(List<IFormFile> files)
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{
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if (files == null || files.Count == 0)
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{
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return BadRequest(new { success = false, message = "请选择文件" });
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}
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var results = new List<object>();
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var successCount = 0;
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var failCount = 0;
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foreach (var file in files)
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{
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var result = await UploadSingleFile(file);
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if (result.success)
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{
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successCount++;
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}
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else
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{
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failCount++;
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}
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results.Add(new
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{
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fileName = file.FileName,
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success = result.success,
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message = result.message,
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url = result.url,
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itemType = result.itemType
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});
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}
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return Ok(new
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{
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success = true,
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message = $"上传完成: {successCount} 个成功, {failCount} 个失败",
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results = results
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});
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}
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private async Task<(bool success, string message, string? url, string? itemType)> UploadSingleFile(IFormFile file)
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{
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if (file == null || file.Length == 0)
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{
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return (false, "请选择文件", null, null);
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}
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if (file.Length > MaxFileSize)
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{
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return (false, $"文件大小不能超过 {MaxFileSize / 1024 / 1024}MB", null, null);
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}
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var extension = Path.GetExtension(file.FileName).ToLowerInvariant();
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string itemType;
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string subFolder;
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if (ImageExtensions.Contains(extension))
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{
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itemType = "Image";
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subFolder = "images";
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}
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else if (VideoExtensions.Contains(extension))
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{
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itemType = "Video";
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subFolder = "videos";
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}
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else
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{
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return (false, "不支持的文件类型", null, null);
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}
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try
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{
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var uploadsFolder = Path.Combine(_environment.WebRootPath, "uploads", subFolder);
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if (!Directory.Exists(uploadsFolder))
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{
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Directory.CreateDirectory(uploadsFolder);
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}
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var uniqueFileName = $"{Guid.NewGuid()}{extension}";
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var filePath = Path.Combine(uploadsFolder, uniqueFileName);
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using (var stream = new FileStream(filePath, FileMode.Create))
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{
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await file.CopyToAsync(stream);
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}
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var fileUrl = $"/uploads/{subFolder}/{uniqueFileName}";
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return (true, "上传成功", fileUrl, itemType);
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}
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catch (Exception ex)
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{
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_logger.LogError(ex, "文件上传失败: {FileName}", file.FileName);
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return (false, $"上传失败: {ex.Message}", null, null);
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}
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}
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/// <summary>
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/// 删除文件
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/// </summary>
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[HttpDelete]
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public ActionResult DeleteFile([FromBody] FileDeleteRequest request)
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{
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if (string.IsNullOrWhiteSpace(request.Url))
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{
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return BadRequest(new { success = false, message = "请提供文件 URL" });
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}
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try
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{
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// 从 URL 中提取文件路径
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var filePath = Path.Combine(_environment.WebRootPath, request.Url.TrimStart('/'));
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if (System.IO.File.Exists(filePath))
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{
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System.IO.File.Delete(filePath);
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_logger.LogInformation("文件删除成功: {Url}", request.Url);
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return Ok(new { success = true, message = "删除成功" });
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}
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else
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{
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return NotFound(new { success = false, message = "文件不存在" });
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}
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}
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catch (Exception ex)
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{
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_logger.LogError(ex, "文件删除失败: {Url}", request.Url);
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return StatusCode(500, new { success = false, message = $"删除失败: {ex.Message}" });
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}
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}
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}
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public class FileDeleteRequest
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{
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public string Url { get; set; } = string.Empty;
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}
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