239 lines
9.5 KiB
C#
239 lines
9.5 KiB
C#
using BLL;
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using System;
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using System.Collections.Generic;
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using System.Configuration;
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using System.Drawing;
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using System.IO;
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using System.Net.Http;
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using System.Text;
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using System.Threading.Tasks;
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using System.Web;
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using System.Web.Http;
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namespace WebAPI.Controllers
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{
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/// <summary>
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/// 附件上传
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/// </summary>
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public class FileUploadController : ApiController
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{
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#region 附件上传
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/// <summary>
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/// 附件上传
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/// </summary>
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/// <returns></returns>
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public IHttpActionResult Post()
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{// 定义允许上传的文件类型列表
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List<string> allowExtensions = BLL.DropListService.allowExtensions;
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HttpFileCollection files = HttpContext.Current.Request.Files;
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string typeName = HttpContext.Current.Request["typeName"];
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if (string.IsNullOrEmpty(typeName))
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{
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typeName = "WebApi";
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}
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string reUrl = string.Empty;
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if (files != null && files.Count > 0)
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{
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string folderUrl = "FileUpLoad/" + typeName + "/" + DateTime.Now.ToString("yyyy-MM") + "/";
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string localRoot = ConfigurationManager.AppSettings["localRoot"] + folderUrl; //物理路径
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if (!Directory.Exists(localRoot))
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{
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Directory.CreateDirectory(localRoot);
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}
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foreach (string key in files.AllKeys)
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{
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string rootUrl = string.Empty;
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string fileName = string.Empty;
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string extensionstr = string.Empty;
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HttpPostedFile file = files[key];//file.ContentLength文件长度
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if (!allowExtensions.Contains(Path.GetExtension(file.FileName)))
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{
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return BadRequest($"Invalid file extension: {file.FileName}");
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}
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if (!string.IsNullOrEmpty(file.FileName))
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{
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extensionstr = Path.GetExtension(file.FileName).ToLower();
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fileName = SQLHelper.GetNewID() + extensionstr;
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rootUrl = localRoot + fileName;
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file.SaveAs(localRoot + fileName);
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}
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if (extensionstr==".jpg" || extensionstr == ".gif" || extensionstr == ".bmp" || extensionstr == ".png")
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{
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string TakePicDateTime = string.Empty;
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System.Drawing.Image image = System.Drawing.Image.FromStream(file.InputStream, true, false);
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Encoding ascii = Encoding.ASCII;
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//遍历图像文件元数据，检索所有属性
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foreach (System.Drawing.Imaging.PropertyItem p in image.PropertyItems)
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{
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//如果是PropertyTagDateTime，则返回该属性所对应的值
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if (p.Id == 0x0132)
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{
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TakePicDateTime = ascii.GetString(p.Value);
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}
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}
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TakePicDateTime = string.IsNullOrEmpty(TakePicDateTime) ? string.Format("{0:yyyy-MM-dd HH:mm:ss}", DateTime.Now) : TakePicDateTime;
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if (!string.IsNullOrEmpty(TakePicDateTime))
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{
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////获取元数据中的拍照日期时间，以字符串形式保存
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//TakePicDateTime = GetTakePicDateTime(pi);
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//分析字符串分别保存拍照日期和时间的标准格式
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var SpaceLocation = TakePicDateTime.IndexOf(" ");
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var dt = TakePicDateTime.Substring(0, SpaceLocation);
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dt = dt.Replace(":", "-");
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var tm = TakePicDateTime.Substring(SpaceLocation + 1, TakePicDateTime.Length - SpaceLocation - 2);
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TakePicDateTime = dt + " " + tm;
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//由列表中的文件创建内存位图对象
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var Pic = new Bitmap(rootUrl);
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//由位图对象创建Graphics对象的实例
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var g = Graphics.FromImage(Pic);
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Font ft = new Font("宋体", 20, FontStyle.Regular, GraphicsUnit.Point, ((byte)(134)));//定义字体
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//在Graphics表面绘制数码照片的日期/时间戳
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g.DrawString(TakePicDateTime, ft, Brushes.Gold, 0, Pic.Height - 100);
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// - 50);
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string newRoot = localRoot + "newfile/";
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if (!Directory.Exists(newRoot))
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{
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Directory.CreateDirectory(newRoot);
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}
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//将添加日期/时间戳后的图像进行保存
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Pic.Save(newRoot + fileName);
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fileName = "newfile/" + fileName;
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//释放内存位图对象
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Pic.Dispose();
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}
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}
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if (!string.IsNullOrEmpty(fileName))
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{
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if (string.IsNullOrEmpty(reUrl))
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{
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reUrl += folderUrl + fileName;
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}
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else
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{
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reUrl += "," + folderUrl + fileName;
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}
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}
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}
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}
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return Ok(reUrl);
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}
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#endregion
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#region 保存附件信息
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/// <summary>
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/// 保存附件信息
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/// </summary>
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/// <param name="toDoItem">附件</param>
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[HttpPost]
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public Model.ResponeData SaveAttachUrl([FromBody] Model.ToDoItem toDoItem)
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{
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var responeData = new Model.ResponeData();
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try
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{
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APIUpLoadFileService.SaveAttachUrl(toDoItem);
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}
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catch (Exception ex)
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{
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responeData.code = 0;
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responeData.message = ex.Message;
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}
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return responeData;
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}
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#endregion
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#region 附件上传
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/// <summary>
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/// 附件上传
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/// </summary>
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/// <returns></returns>
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public IHttpActionResult PostSmall()
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{
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HttpFileCollection files = HttpContext.Current.Request.Files;
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string typeName = HttpContext.Current.Request["typeName"];
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if (string.IsNullOrEmpty(typeName))
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{
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typeName = "WebApi";
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}
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string reUrl = string.Empty;
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if (files != null && files.Count > 0)
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{
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string folderUrl = "FileUpLoad/" + typeName + "/" + DateTime.Now.ToString("yyyy-MM") + "/";
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string localRoot = ConfigurationManager.AppSettings["localRoot"] + folderUrl; //物理路径
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if (!Directory.Exists(localRoot))
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{
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Directory.CreateDirectory(localRoot);
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}
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foreach (string key in files.AllKeys)
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{
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HttpPostedFile file = files[key];//file.ContentLength文件长度
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reUrl = UpLoadImageService.UpLoadImage(file, folderUrl, folderUrl + "Small/", 80, 30);
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}
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}
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return Ok(reUrl);
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}
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#endregion
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#region 在线编辑回调保存文件
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/// <summary>
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/// 在线编辑回调保存文件
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/// </summary>
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/// <param name="toDoItem"></param>
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/// <returns></returns>
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[HttpPost]
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public async Task<Model.ResponeData> DownloadDocument([FromBody] Model.SaveOnlineFileItem toDoItem)
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{
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var responeData = new Model.ResponeData();
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HttpClient _httpClient = new HttpClient();
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try
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{
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System.Net.ServicePointManager.SecurityProtocol = System.Net.SecurityProtocolType.Tls12;
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// 发送 GET 请求以获取文件内容
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var response = await _httpClient.GetAsync(toDoItem.UrlStr);
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response.EnsureSuccessStatusCode();
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string savePath = "";
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if (!string.IsNullOrEmpty(toDoItem.PCUrl))
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{
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savePath = ConfigurationManager.AppSettings["localRoot"] + toDoItem.PCUrl;
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}
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if (savePath != null)
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{
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// 将文件内容保存到本地
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using (var fileStream = File.Create(savePath))
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{
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await response.Content.CopyToAsync(fileStream);
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}
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responeData.code = 1;
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responeData.data = "文件已成功下载并保存到本地";
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}
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else
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{
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responeData.code = 0;
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responeData.message = "保存路径为空";
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}
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}
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catch (Exception ex)
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{
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responeData.code = 0;
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responeData.message = $"下载文件时出现错误：{ex.Message}";
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}
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return responeData;
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}
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#endregion
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}
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}
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