From 5f467d39b6bcca41c0720493c1f6e68c77ea89e4 Mon Sep 17 00:00:00 2001
From: 啊鑫 <t2856754968@163.com>
Date: 星期日, 20 七月 2025 18:08:51 +0800
Subject: [PATCH] ftp服务器上传

---
 StandardInterface/MES.Service/service/QC/LljService.cs           |  210 +++++++++++++++++++++++++++++++---
 StandardInterface/MESApplication/Controllers/QC/LljController.cs |   95 ++++++++++++---
 2 files changed, 263 insertions(+), 42 deletions(-)

diff --git a/StandardInterface/MES.Service/service/QC/LljService.cs b/StandardInterface/MES.Service/service/QC/LljService.cs
index 6a7e76f..08a075a 100644
--- a/StandardInterface/MES.Service/service/QC/LljService.cs
+++ b/StandardInterface/MES.Service/service/QC/LljService.cs
@@ -313,28 +313,198 @@
 
     public List<QamftpDto> GetAttachments(string releaseNo)
     {
+        if (string.IsNullOrEmpty(releaseNo))
+        {
+            throw new ArgumentException("妫�楠屽崟鍙蜂笉鑳戒负绌�");
+        }
+        
         var db = SqlSugarHelper.GetInstance();
-        return db.Queryable<MesQamftp>()
-            .Where(x => x.ReleaseNo == releaseNo)
-            .OrderBy(x => x.Fdate, OrderByType.Desc)
-            .Select(x => new QamftpDto
+        try
+        {
+            return db.Queryable<MesQamftp>()
+                .Where(x => x.ReleaseNo == releaseNo)
+                .OrderBy(x => x.Fdate, OrderByType.Desc)
+                // .ThenBy(x => x.CreateDate, OrderByType.Desc)
+                .Select(x => new QamftpDto
+                {
+                    Id = x.Id,
+                    ItemNo = x.ItemNo,
+                    Ftype = x.Ftype,
+                    Fattach = x.Fattach,
+                    Fversion = x.Fversion,
+                    Fdate = x.Fdate,
+                    CreateBy = x.CreateBy,
+                    CreateDate = x.CreateDate,
+                    Company = x.Company,
+                    Factory = x.Factory,
+                    ReleaseNo = x.ReleaseNo,
+                    F_type = x.F_type,
+                    LastupdateBy = x.LastupdateBy,
+                    LastupdateDate = x.LastupdateDate,
+                    ItemId = x.ItemId
+                }).ToList();
+        }
+        catch (Exception ex)
+        {
+            throw new Exception($"鏌ヨ闄勪欢淇℃伅澶辫触: {ex.Message}");
+        }
+    }
+
+    public byte[] GetFtpFile(string itemNo, string fileName, string ftpServer)
+    {
+        // 鍙傛暟楠岃瘉
+        if (string.IsNullOrEmpty(itemNo) || string.IsNullOrEmpty(fileName) || string.IsNullOrEmpty(ftpServer))
+        {
+            throw new ArgumentException("鍙傛暟涓嶈兘涓虹┖: itemNo, fileName, ftpServer");
+        }
+        
+        string ftpUser = "hm_ftp";
+        string ftpPwd = "dell_123";
+        
+        // 鏍囧噯鍖朏TP鏈嶅姟鍣ㄥ湴鍧�
+        string normalizedServer = NormalizeFtpServer(ftpServer);
+        
+        // 鏋勫缓FTP鏂囦欢璺緞
+        string ftpPath = $"{normalizedServer}/IQC/{itemNo}/{fileName}";
+        
+        try
+        {
+            var request = (System.Net.FtpWebRequest)System.Net.WebRequest.Create(ftpPath);
+            request.Method = System.Net.WebRequestMethods.Ftp.DownloadFile;
+            request.Credentials = new System.Net.NetworkCredential(ftpUser, ftpPwd);
+            request.UseBinary = true;
+            request.UsePassive = false;
+            request.Timeout = 30000; // 30绉掕秴鏃�
+            request.ReadWriteTimeout = 30000;
+            
+            using (var response = (System.Net.FtpWebResponse)request.GetResponse())
+            using (var ftpStream = response.GetResponseStream())
+            using (var ms = new System.IO.MemoryStream())
             {
-                Id = x.Id,
-                ItemNo = x.ItemNo,
-                Ftype = x.Ftype,
-                Fattach = x.Fattach,
-                Fversion = x.Fversion,
-                Fdate = x.Fdate,
-                CreateBy = x.CreateBy,
-                CreateDate = x.CreateDate,
-                Company = x.Company,
-                Factory = x.Factory,
-                ReleaseNo = x.ReleaseNo,
-                F_type = x.F_type,
-                LastupdateBy = x.LastupdateBy,
-                LastupdateDate = x.LastupdateDate,
-                ItemId = x.ItemId
-            }).ToList();
+                if (ftpStream == null)
+                {
+                    throw new Exception("FTP鍝嶅簲娴佷负绌�");
+                }
+                
+                ftpStream.CopyTo(ms);
+                var fileBytes = ms.ToArray();
+                
+                if (fileBytes.Length == 0)
+                {
+                    return null; // 鏂囦欢涓虹┖鎴栦笉瀛樺湪
+                }
+                
+                return fileBytes;
+            }
+        }
+        catch (System.Net.WebException ex)
+        {
+            if (ex.Response is System.Net.FtpWebResponse ftpResponse)
+            {
+                switch (ftpResponse.StatusCode)
+                {
+                    case System.Net.FtpStatusCode.ActionNotTakenFileUnavailable:
+                        return null; // 鏂囦欢涓嶅瓨鍦�
+                    case System.Net.FtpStatusCode.NotLoggedIn:
+                        throw new Exception("FTP璁よ瘉澶辫触锛岃妫�鏌ョ敤鎴峰悕鍜屽瘑鐮�");
+                    case System.Net.FtpStatusCode.ActionNotTakenFilenameNotAllowed:
+                        throw new Exception("鏂囦欢鍚嶄笉琚厑璁告垨璺緞鏃犳晥");
+                    default:
+                        throw new Exception($"FTP閿欒 ({ftpResponse.StatusCode}): {ftpResponse.StatusDescription}");
+                }
+            }
+            
+            // 澶勭悊瓒呮椂鍜岀綉缁滈敊璇�
+            if (ex.Status == System.Net.WebExceptionStatus.Timeout)
+            {
+                throw new Exception("FTP杩炴帴瓒呮椂锛岃绋嶅悗閲嶈瘯");
+            }
+            
+            throw new Exception($"FTP杩炴帴澶辫触: {ex.Message}");
+        }
+        catch (Exception ex)
+        {
+            throw new Exception($"鑾峰彇鏂囦欢澶辫触: {ex.Message}");
+        }
+    }
+    
+    private string NormalizeFtpServer(string ftpServer)
+    {
+        if (string.IsNullOrEmpty(ftpServer))
+        {
+            throw new ArgumentException("FTP鏈嶅姟鍣ㄥ湴鍧�涓嶈兘涓虹┖");
+        }
+        
+        // 纭繚浠tp://寮�澶�
+        string normalizedServer = ftpServer.StartsWith("ftp://") ? ftpServer : $"ftp://{ftpServer}";
+        
+        // 鐗规畩澶勭悊宸茬煡鏈嶅姟鍣ㄥ湴鍧�
+        if (normalizedServer == "ftp://36.26.21.214")
+        {
+            normalizedServer = "ftp://36.26.21.214:21";
+        }
+        else if (!normalizedServer.Contains(":") && normalizedServer.StartsWith("ftp://"))
+        {
+            normalizedServer += ":21"; // 榛樿FTP绔彛
+        }
+        
+        // 寮�鍙戠幆澧冧娇鐢ㄦ湰鍦版湇鍔″櫒
+        normalizedServer = "ftp://192.168.1.22:21";
+        
+        return normalizedServer;
+    }
+
+    public string GetContentType(string fileName)
+    {
+        if (string.IsNullOrEmpty(fileName))
+            return "application/octet-stream";
+            
+        var extension = System.IO.Path.GetExtension(fileName).ToLower();
+        
+        return extension switch
+        {
+            // PDF鏂囦欢
+            ".pdf" => "application/pdf",
+            
+            // 鍥剧墖鏂囦欢
+            ".jpg" or ".jpeg" => "image/jpeg",
+            ".png" => "image/png",
+            ".gif" => "image/gif",
+            ".bmp" => "image/bmp",
+            ".webp" => "image/webp",
+            ".svg" => "image/svg+xml",
+            ".ico" => "image/x-icon",
+            
+            // 鏂囨湰鏂囦欢
+            ".txt" => "text/plain; charset=utf-8",
+            ".log" => "text/plain; charset=utf-8",
+            ".md" => "text/markdown; charset=utf-8",
+            ".csv" => "text/csv; charset=utf-8",
+            ".xml" => "text/xml; charset=utf-8",
+            ".json" => "application/json; charset=utf-8",
+            
+            // Office鏂囨。
+            ".doc" => "application/msword",
+            ".docx" => "application/vnd.openxmlformats-officedocument.wordprocessingml.document",
+            ".xls" => "application/vnd.ms-excel",
+            ".xlsx" => "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
+            ".ppt" => "application/vnd.ms-powerpoint",
+            ".pptx" => "application/vnd.openxmlformats-officedocument.presentationml.presentation",
+            
+            // 鍘嬬缉鏂囦欢
+            ".zip" => "application/zip",
+            ".rar" => "application/x-rar-compressed",
+            ".7z" => "application/x-7z-compressed",
+            
+            // 鍏朵粬甯歌鏍煎紡
+            ".dwg" => "application/acad",
+            ".dxf" => "application/dxf",
+            ".step" or ".stp" => "application/step",
+            ".iges" or ".igs" => "application/iges",
+            
+            // 榛樿浜岃繘鍒舵祦
+            _ => "application/octet-stream"
+        };
     }
     public int saveItem(LLJDto rkjDto)
     {
diff --git a/StandardInterface/MESApplication/Controllers/QC/LljController.cs b/StandardInterface/MESApplication/Controllers/QC/LljController.cs
index fd428d0..f45a36d 100644
--- a/StandardInterface/MESApplication/Controllers/QC/LljController.cs
+++ b/StandardInterface/MESApplication/Controllers/QC/LljController.cs
@@ -348,36 +348,87 @@
         }
     }
 
-    [HttpGet("DownloadFtpFile")]
-    public IActionResult DownloadFtpFile([FromQuery] string itemNo, [FromQuery] string fileName)
+    [HttpGet("PreviewFtpFile")]
+    public IActionResult PreviewFtpFile([FromQuery] string itemNo, [FromQuery] string fileName, [FromQuery] string ftpServer)
     {
-        // FTP鏈嶅姟鍣ㄤ俊鎭�
-        string ftpServer = "ftp://36.26.21.214";
-        string ftpUser = "hm_ftp";
-        string ftpPwd = "dell_123"; 
-        string ftpPath = $"{ftpServer}/IQC/{itemNo}/{fileName}";
         try
         {
-            var request = (System.Net.FtpWebRequest)System.Net.WebRequest.Create(ftpPath);
-            request.Method = System.Net.WebRequestMethods.Ftp.DownloadFile;
-            request.Credentials = new System.Net.NetworkCredential(ftpUser, ftpPwd);
-            request.UseBinary = true;
-            request.UsePassive = false;
-            using (var response = (System.Net.FtpWebResponse)request.GetResponse())
-            using (var ftpStream = response.GetResponseStream())
-            using (var ms = new System.IO.MemoryStream())
+            // 娣诲姞CORS鍝嶅簲澶�
+            Response.Headers.Add("Access-Control-Allow-Origin", "*");
+            Response.Headers.Add("Access-Control-Allow-Methods", "GET, OPTIONS");
+            Response.Headers.Add("Access-Control-Allow-Headers", "Content-Type");
+            Response.Headers.Add("Access-Control-Expose-Headers", "Content-Type, Content-Length");
+            
+            var service = new LljService();
+            var fileBytes = service.GetFtpFile(itemNo, fileName, ftpServer);
+            
+            if (fileBytes == null || fileBytes.Length == 0)
             {
-                ftpStream.CopyTo(ms);
-                ms.Position = 0;
-                string contentType = "application/octet-stream";
-                // 闃插尽鎬у鐞嗭紝鍘婚櫎fileName涓殑鍥炶溅鎹㈣鍜岀┖鏍�
-                fileName = fileName?.Trim().Replace("\r", "").Replace("\n", "");
-                return File(ms.ToArray(), contentType, fileName);
+                return NotFound("鏂囦欢鍦‵TP鏈嶅姟鍣ㄤ笂涓嶅瓨鍦�");
             }
+            
+            var contentType = service.GetContentType(fileName);
+            fileName = fileName?.Trim().Replace("\r", "").Replace("\n", "");
+            
+            return File(fileBytes, contentType);
         }
         catch (Exception ex)
         {
-            return BadRequest($"FTP涓嬭浇澶辫触锛歿ex.Message}锛宖tpPath={ftpPath}锛宖ileName={fileName}");
+            return StatusCode(500, $"棰勮鏂囦欢澶辫触锛歿ex.Message}");
         }
     }
+
+    [HttpGet("DownloadFtpFile")]
+    public IActionResult DownloadFtpFile([FromQuery] string itemNo, [FromQuery] string fileName, [FromQuery] string ftpServer)
+    {
+        try
+        {
+            // 娣诲姞CORS鍝嶅簲澶� - 鍏抽敭閰嶇疆鐢ㄤ簬瑙e喅璺ㄥ煙闂
+            Response.Headers.Add("Access-Control-Allow-Origin", "*");
+            Response.Headers.Add("Access-Control-Allow-Methods", "GET, OPTIONS");
+            Response.Headers.Add("Access-Control-Allow-Headers", "Content-Type, Authorization");
+            Response.Headers.Add("Access-Control-Expose-Headers", "Content-Disposition, Content-Length, Content-Type");
+            
+            var service = new LljService();
+            var fileBytes = service.GetFtpFile(itemNo, fileName, ftpServer);
+            
+            if (fileBytes == null || fileBytes.Length == 0)
+            {
+                return NotFound("鏂囦欢鍦‵TP鏈嶅姟鍣ㄤ笂涓嶅瓨鍦�");
+            }
+            
+            var contentType = service.GetContentType(fileName);
+            fileName = fileName?.Trim().Replace("\r", "").Replace("\n", "");
+            
+            // 璁剧疆姝g‘鐨凜ontent-Disposition鍝嶅簲澶翠互鏀寔鏂囦欢涓嬭浇
+            var result = File(fileBytes, "application/octet-stream", fileName);
+            
+            // 纭繚Content-Disposition澶存纭缃紝鏀寔涓枃鏂囦欢鍚�
+            if (!string.IsNullOrEmpty(fileName))
+            {
+                var encodedFileName = System.Web.HttpUtility.UrlEncode(fileName, System.Text.Encoding.UTF8);
+                Response.Headers.Add("Content-Disposition", $"attachment; filename*=UTF-8''{encodedFileName}");
+            }
+            
+            return result;
+        }
+        catch (Exception ex)
+        {
+            return StatusCode(500, $"涓嬭浇鏂囦欢澶辫触锛歿ex.Message}");
+        }
+    }
+
+    [HttpOptions("PreviewFtpFile")]
+    [HttpOptions("DownloadFtpFile")]
+    public IActionResult HandleOptions()
+    {
+        // 澶勭悊CORS棰勬璇锋眰
+        Response.Headers.Add("Access-Control-Allow-Origin", "*");
+        Response.Headers.Add("Access-Control-Allow-Methods", "GET, OPTIONS");
+        Response.Headers.Add("Access-Control-Allow-Headers", "Content-Type, Authorization");
+        Response.Headers.Add("Access-Control-Expose-Headers", "Content-Disposition, Content-Length, Content-Type");
+        Response.Headers.Add("Access-Control-Max-Age", "86400");
+        
+        return Ok();
+    }
 }
\ No newline at end of file

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