初始化

BooliveMQTT_Auth/Controllers/FileUploadController.cs

@@ -0,0 +1,134 @@
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Http.HttpResults;
+using Microsoft.AspNetCore.Mvc;
+
+namespace SupplierManager.Controllers
+{
+    [Route("api/[controller]/[action]")]
+    [ApiController]
+    public class FileUploadController : ControllerBase
+    {
+
+        public static string[] FolderG = new string[] {"face" };
+
+        [Authorize()]
+        [HttpPost()]
+        public async Task<IActionResult> UploadFile([FromForm] UploadFileModel model)
+        {
+            if (model.File == null || model.File.Length == 0)
+            {
+                return BadRequest("没有上传任何文件");
+            }
+
+            try
+            {
+                // 获取文件名和扩展名
+                string originalFileName = Path.GetFileNameWithoutExtension(model.File.FileName);
+                string fileExtension = Path.GetExtension(model.File.FileName); // 包含扩展名前的点（如.jpg）
+
+                // 生成8位GUID（取完整GUID的前8位字符）
+                string guidPart = Guid.NewGuid().ToString("N")[..16];
+
+                // 组合新文件名：原文件名_8位GUID.扩展名
+                string newFileName = $"{originalFileName}_{guidPart}{fileExtension}";
+
+                var filePath = Path.Combine(Directory.GetCurrentDirectory(),
+                                          $"wwwroot/Uploads/{model.Folder}",
+                                          newFileName);
+
+                using (var stream = new FileStream(filePath, FileMode.Create))
+                {
+                    await model.File.CopyToAsync(stream);
+                }
+                return Ok(new { FileName = newFileName });
+            }
+            catch (Exception ex)
+            {
+                return BadRequest(new { Message = ex.Message });
+            }
+        }
+
+        public record DF
+        {
+            public string? FileName { get; set; }
+        }
+        // 示例：通过文件名获取图片
+        [Authorize()]
+        [HttpPost()]
+        public IActionResult DownloadFile([FromBody]DF imageName)
+        {
+            try
+            {
+                // 拼接图片物理路径（假设图片存放在项目的 wwwroot/images 目录下）
+                var imagePath = Path.Combine(Directory.GetCurrentDirectory(), "wwwroot/", imageName.FileName);
+
+                // 检查文件是否存在
+                if (!System.IO.File.Exists(imagePath))
+                {
+                    return NotFound("Image not found");
+                }
+                if (imageName.FileName.Contains(".."))
+                {
+                    return BadRequest("Invalid file name");
+                }
+
+
+                // 读取文件流并返回
+                var imageStream = System.IO.File.OpenRead(imagePath);
+
+                // 根据扩展名自动设置 Content-Type（MIME类型）
+                var mimeType = GetMimeType(imageName.FileName);
+
+                return File(imageStream, mimeType);
+            }
+            catch (Exception ex)
+            {
+                return StatusCode(500, $"Internal server error: {ex.Message}");
+            }
+        }
+
+        [Authorize()]
+        [HttpPost()]
+        public IActionResult GetFileNameList()
+        {
+            try
+            {
+                // 拼接图片物理路径（假设图片存放在项目的 wwwroot/images 目录下）
+                var filePath = Path.Combine(Directory.GetCurrentDirectory(),
+                                          $"wwwroot/Download/customization","");
+
+                string[] files= System.IO.Directory.GetFiles(filePath);
+                var myfiles= files.Select(A=>Path.GetFileName(A));
+                return Ok(new { FileNameList = myfiles });
+               
+            }
+            catch (Exception ex)
+            {
+                return StatusCode(500, $"Internal server error: {ex.Message}");
+            }
+        }
+
+        // 获取 MIME 类型映射
+        private string GetMimeType(string fileName)
+        {
+            var extension = Path.GetExtension(fileName).ToLowerInvariant();
+            return 
+                extension switch
+                {
+                    ".jpg" => "image/jpeg",
+                    ".jpeg" => "image/jpeg",
+                    ".png" => "image/png",
+                    ".gif" => "image/gif",
+                    ".xls" =>"application/vnd.ms-excel",
+                    ".xlsx"=>"application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
+                    _ => "application/octet-stream" // 默认类型
+                };
+        }
+    }
+    public class UploadFileModel
+    {
+        public IFormFile File { get; set; }
+        public string Folder { get; set; }
+    }
+}