C#上传文件处理
1 public class FileHelp : System.Web.UI.Page
2 {
3
4 /// <summary>
5 /// 保存文件
6 /// 返回：数组：status[0]:文件名称；status[1]:文件后缀名；status[2]:文件绝对URL；status[3]:文件相对URL；
7 /// </summary>
8 /// <param name="floder"></param>
9 /// <param name="file"></param>
10 /// <returns>数组：status[0]:文件名称；status[1]:文件后缀名；status[2]:文件URL</returns>
11 public static string[] SaveFile(FileBase.FileFloder floder, HttpPostedFile file)
12 {
13 try
14 {
15 string[] status = { "", "", "", "" };
16
17 String Tpath = "/" + floder + "/" + DateTime.Now.ToString("yyyy-MM-dd") + "/";
18 string docName = file.FileName;
19 string dufix = Path.GetExtension(docName);
20 string FileName = DateTime.Now.ToString("yyyyMMddHHmmssfff") + "-" + System.Guid.NewGuid().ToString();
21 status[0] = FileName + dufix;
22 status[1] = dufix;
23 string FilePath = FileBase.fileBasePath + Tpath;
24 DirectoryInfo di = new DirectoryInfo(FilePath);
25 if (!di.Exists) { di.Create(); }
26
27 file.SaveAs(FilePath + FileName + dufix);
28
29 status[2] = (FilePath + FileName + dufix).Replace("\\", "/");
30 status[3] = (Tpath + FileName + dufix).Replace("\\", "/");
31
32 return status;
33 }
34 catch (Exception ex)
35 {
36 throw ex;
37 }
38 }
39
40 /// <summary>
41 /// 保存文件
42 /// 返回：数组：files[0]:文件夹位置；files[1]:文件名；files[2]:文件所在位置；
43 /// </summary>
44 /// <param name="floder"></param>
45 /// <param name="tempId"></param>
46 /// <param name="file"></param>
47 /// <returns>数组：files[0]:文件夹位置；files[1]:文件名；files[2]:文件所在位置</returns>
48 public static string[] SaveFile(string filepath, HttpPostedFile file)
49 {
50 try
51 {
52 string[] files = { "", "", "" };
53
54 String Tpath = "/" + filepath + "/";
55 string docName = file.FileName;
56 string dufix = Path.GetExtension(docName);
57 string FileName = docName;
58 string FilePath = FileBase.fileBasePath + Tpath;
59 files[0] = FilePath;
60 DirectoryInfo di = new DirectoryInfo(FilePath);
61 if (!di.Exists) { di.Create(); }
62
63 file.SaveAs(FilePath + FileName);
64 files[1] = FileName;
65 files[2] = FilePath + FileName;
66
67
68 return files;
69 }
70 catch (Exception ex)
71 {
72 throw ex;
73 }
74 }
75
76 public static void CreateDir(string driPath)
77 {
78 DirectoryInfo di = new DirectoryInfo(FileBase.fileBasePath + "/" + driPath);
79 if (!di.Exists) { di.Create(); }
80 }
81
82 /// <summary>
83 /// 清空文件夹的文件
84 /// </summary>
85 /// <param name="floder"></param>
86 /// <param name="tempId"></param>
87 public static void ClearFolderFiles(string path)
88 {
89 try
90 {
91 string[] files = { "", "", "" };
92 String Tpath = "/" + path + "/";
93 string FilePath = FileBase.fileBasePath + Tpath;
94 DirectoryInfo di = new DirectoryInfo(FilePath);
95 if (di.Exists)
96 {
97 FileSystemInfo[] fileinfo = di.GetFileSystemInfos(); //返回目录中所有文件和子目录
98 foreach (FileSystemInfo i in fileinfo)
99 {
100 if (i is DirectoryInfo) //判断是否文件夹
101 {
102 DirectoryInfo subdir = new DirectoryInfo(i.FullName);
103 subdir.Delete(true); //删除子目录和文件
104 }
105 else
106 {
107 File.Delete(i.FullName); //删除指定文件
108 }
109 }
110 }
111
112 }
113 catch (Exception ex)
114 {
115 throw ex;
116 }
117 }
118
119
120 public static void RemoveFile(string dirPath,string fileName)
121 {
122 try
123 {
124 //删除文件
125 for (int i = 0; i < Directory.GetFiles(dirPath).ToList().Count; i++)
126 {
127 if (Path.GetFileName(Directory.GetFiles(dirPath)[i]) == fileName)
128 {
129 File.Delete(fileName);
130 }
131 }
132 }
133 catch (Exception ex)
134 {
135 throw ex;
136 }
137 }
138
139
140 public static void RemoveDir(string dirPath, string fileName)
141 {
142 try
143 {
144 //删除文件夹
145 for (int i = 0; i < Directory.GetDirectories(dirPath).ToList().Count; i++)
146 {
147 if (Directory.GetDirectories(dirPath)[i] == fileName)
148 {
149 Directory.Delete(fileName, true);
150 }
151 }
152 }
153 catch (Exception ex)
154 {
155 throw ex;
156 }
157 }
158
159
160 /// <summary>
161 /// 实体集合转datatable
162 /// </summary>
163 /// <typeparam name="T"></typeparam>
164 /// <param name="collection"></param>
165 /// <returns></returns>
166 public static DataTable ToDataTable<T>(IEnumerable<T> collection)
167 {
168 var props = typeof(T).GetProperties();
169 var dt = new DataTable();
170 dt.Columns.AddRange(props.Select(p => new DataColumn(p.Name, p.PropertyType)).ToArray());
171 if (collection.Count() > 0)
172 {
173 for (int i = 0; i < collection.Count(); i++)
174 {
175 ArrayList tempList = new ArrayList();
176 foreach (PropertyInfo pi in props)
177 {
178 object obj = pi.GetValue(collection.ElementAt(i), null);
179 tempList.Add(obj);
180 }
181 object[] array = tempList.ToArray();
182 dt.LoadDataRow(array, true);
183 }
184 }
185 return dt;
186 }
187
188
189
190 public static FileName SaveFiles(FileBase.FileFloder floder, HttpPostedFile file)
191 {
192 try
193 {
194 FileName fileName = new SN_DEV_Help.FileName();
195 //string status = "";
196 String Tpath = "/" + floder + "/" + DateTime.Now.ToString("yyyy-MM-dd") + "/";
197 string docName = file.FileName;
198 string dufix = Path.GetExtension(docName);
199 string FileName = DateTime.Now.ToString("yyyyMMddHHmmssfff") + "-" + System.Guid.NewGuid().ToString();
200 string FilePath = FileBase.fileBasePath + Tpath;
201 DirectoryInfo di = new DirectoryInfo(FilePath);
202 if (!di.Exists) { di.Create(); }
203
204 file.SaveAs(FilePath + FileName + dufix);
205 fileName.url = (FilePath + FileName + dufix).Replace("\\", "/");
206 fileName.name = FileName;
207 return fileName;
208 }
209 catch (Exception ex)
210 {
211 throw ex;
212 }
213 }
214
215 public static FileDetails UploadFile()
216 {
217 FileDetails fileDetails = new FileDetails();
218 HttpFileCollection filelist = HttpContext.Current.Request.Files;
219 if (filelist != null && filelist.Count > 0)
220 {
221 for (int i = 0; i < filelist.Count; i++)
222 {
223 HttpPostedFile file = filelist[i];
224 try
225 {
226 var fileName = FileHelp.SaveFiles(FileBase.FileFloder.Institution, file);
227 fileDetails.Url = fileName.url;
228 fileDetails.name = fileName.name;
229 fileDetails.oldname = System.IO.Path.GetFileNameWithoutExtension(file.FileName);
230 fileDetails.Format = System.IO.Path.GetExtension(file.FileName);
231 fileDetails.Msg = 1;
232 }
233 catch (Exception ex)
234 {
235 fileDetails.Msg = 0;
236 }
237 }
238 }
239 else
240 {
241 fileDetails.Msg = 0;
242 fileDetails.Result = "上传的文件信息不存在！";
243 }
244 return fileDetails;
245 }
246
247
248 public static List<FileDetails> UploadFileT()//上传多个文件
249 {
250 List<FileDetails> list = new List<SN_DEV_Help.FileDetails>();
251
252 HttpFileCollection filelist = HttpContext.Current.Request.Files;
253 if (filelist != null && filelist.Count > 0)
254 {
255 for (int i = 0; i < filelist.Count; i++)
256 {
257 FileDetails fileDetails = new FileDetails();
258 HttpPostedFile file = filelist[i];
259 try
260 {
261 var fileName = FileHelp.SaveFiles(FileBase.FileFloder.Institution, file);
262 fileDetails.Url = fileName.url;
263 fileDetails.name = fileName.name;
264 fileDetails.oldname = file.FileName;
265 fileDetails.Msg = 1;
266 }
267 catch (Exception ex)
268 {
269 fileDetails.Msg = 0;
270 }
271 list.Add(fileDetails);
272 }
273 }
274 else
275 {
276 //fileDetails.Msg = 0;
277 //fileDetails.Result = "上传的文件信息不存在！";
278 }
279 return list;
280 }
281
282
283 }
284 public class FileDetails //details
285 {
286 /// <summary>
287 /// 保存链接
288 /// </summary>
289 public string Url { get; set; }
290
291 public int Msg { get; set; }
292
293 public string Format { get; set; }
294
295 public string Result { get; set; }
296
297 public string name { get; set; }
298 public string oldname { get; set; }
299 }
300
301 public class FileName
302 {
303 public string url { get; set; }
304 public string name { get; set; }
305 }保存文件
1 FileDetails fileDetails = FileHelp.UploadFile();
2 if (fileDetails.Msg == 1)
3 {
4 //保存文件资源
5 documentresources file = new documentresources
6 {
7 DocName = fileDetails.oldname,
8 FileName = fileDetails.name,
9 DocSuffix = fileDetails.Format,
10 DocUrl = fileDetails.Url,
11 UpDate = DateTime.Now.ToString()
12 };
13 dbContext.documentresources.Add(file);
14 dbContext.SaveChanges();
15
16 }
17 else
18 {
19 dbContextTranscation.Rollback();
20 faild.status = Result.失败;
21 faild.msg = "上传文件出错";
22 return JsonHelper.SerializeObject(faild);
23 }