文件服务 新增获取图片接口（主键ID）

Tiobon.Core.Api/Controllers/FileController.cs

@@ -12,15 +12,24 @@ public class FileController : BaseApiController
 {
     public ITiobonArticleServices _TiobonArticleServices { get; set; }
     private readonly ILogger<TiobonController> _logger;
-
+    /// <summary>
+    /// 配置信息
+    /// </summary>
+    private readonly IConfiguration _configuration;
+    private readonly IWebHostEnvironment _hostingEnvironment;
+    private readonly IGhre_AttachmentServices _ghre_AttachmentServices;
     /// <summary>
     /// 构造函数
     /// </summary>
     /// <param name="logger"></param>
-    /// 
-    public FileController(ILogger<TiobonController> logger)
+    /// <param name="configuration"></param>
+    /// <param name="hostingEnvironment"></param>
+    public FileController(ILogger<TiobonController> logger, IConfiguration configuration, IWebHostEnvironment hostingEnvironment, IGhre_AttachmentServices ghre_AttachmentServices)
     {
         _logger = logger;
+        _configuration = configuration;
+        _hostingEnvironment = hostingEnvironment;
+        _ghre_AttachmentServices = ghre_AttachmentServices;
     }
 
     #region 上传图片
@@ -80,4 +89,54 @@ public class FileController : BaseApiController
     }
     #endregion
 
+
+    #region 获取图片
+    [HttpGet("Download/{Id}"), AllowAnonymous]
+    public async Task<IActionResult> Download(long Id)
+    {
+        try
+        {
+            var webRootPath = _hostingEnvironment.WebRootPath;
+
+            using var _context = ContextFactory.CreateContext();
+            //var file = await _context.Ghre_Attachment.Where(o => o.Id == Id).FirstOrDefaultAsync();
+            var file = await _ghre_AttachmentServices.QueryById(Id);
+            if (file == null)
+                return Ok("找不到文件");
+
+            var filePath = $"{webRootPath}{"\\" + file.PhysicsPath}"; 
+
+            var contentTypDict = new Dictionary<string, string> {
+                    {"jpg","image/jpeg"},
+                    {"jpeg","image/jpeg"},
+                    {"jpe","image/jpeg"},
+                    {"png","image/png"},
+                    {"gif","image/gif"},
+                    {"ico","image/x-ico"},
+                    {"tif","image/tiff"},
+                    {"tiff","image/tiff"},
+                    {"fax","image/fax"},
+                    {"wbmp","image//vnd.wap.wbmp"},
+                    {"rp","image/vnd.rn-realpix"}
+                };
+            var contentTypeStr = "image/jpeg";
+            //未知的图片类型
+            contentTypeStr = contentTypDict[file.AttachFileExtension];
+
+            using (var sw = new FileStream(filePath, FileMode.Open))
+            {
+                var bytes = new byte[sw.Length];
+                sw.Read(bytes, 0, bytes.Length);
+                sw.Close();
+                return new FileContentResult(bytes, contentTypeStr);
+            }
+
+        }
+        catch (Exception ex)
+        {
+            return Ok($"下载异常：{ex.Message}");
+        }
+    }
+    #endregion
+
 }

Tiobon.Core.Api/Tiobon.Core.xml

@@ -311,12 +311,18 @@
             文件服务
             </summary>
         </member>
-        <member name="M:Tiobon.Core.Controllers.FileController.#ctor(Microsoft.Extensions.Logging.ILogger{Tiobon.Core.Controllers.TiobonController})">
+        <member name="F:Tiobon.Core.Controllers.FileController._configuration">
+            <summary>
+            配置信息
+            </summary>
+        </member>
+        <member name="M:Tiobon.Core.Controllers.FileController.#ctor(Microsoft.Extensions.Logging.ILogger{Tiobon.Core.Controllers.TiobonController},Microsoft.Extensions.Configuration.IConfiguration,Microsoft.AspNetCore.Hosting.IWebHostEnvironment,Tiobon.Core.IServices.IGhre_AttachmentServices)">
             <summary>
             构造函数
             </summary>
             <param name="logger"></param>
-            
+            <param name="configuration"></param>
+            <param name="hostingEnvironment"></param>
         </member>
         <member name="M:Tiobon.Core.Controllers.FileController.UploadImageAsync(Microsoft.AspNetCore.Http.IFormFileCollection)">
             <summary>