1 using System;
2 using System.Collections.Generic;
3 using System.Linq;
4 using System.Web;
5 using System.Web.UI;
6 using System.Data;
7 using System.Data.OleDb;
8 using System.Web.UI.WebControls;
9 using System.IO;
10
11 /// <summary>
12 ///MyClasses 的摘要说明
13 /// </summary>
14 namespace newClasses
15 {
16
17 //自定义数据库连接类
18 public class superConn{
19
20 public OleDbConnection cnn;
21 private OleDbCommand cmd;
22 private OleDbDataReader datar;
23
24 public superConn(string mdbFileName) {
25 string _path = "~\\App_Data\\" + mdbFileName;
26 string str_conn = "Provider=Microsoft.Jet.OLEDB.4.0; Data Source="
27 + System.Web.HttpContext.Current.Server.MapPath(_path);
28 //MapPath(_path);
29 cnn = new OleDbConnection(str_conn);
30 }
31
32 // superConn.open()
33 public void open() {
34 cnn.Open();
35 }
36
37 public void close() {
38 cnn.Close();
39 }
40
41 public OleDbDataReader GetDataReader(string _sql) {
42 cmd = new OleDbCommand(_sql, cnn);
43 datar = cmd.ExecuteReader();
44 return datar;
45 }
46
47 //返回DDL控件,表名列表
48 public DropDownList GetDDLforTableList() {
49 DropDownList _ddl = new DropDownList();
50
51 cnn.Open();
52
53 DataTable dt = cnn.GetSchema("Tables", null);
54
55 foreach (DataRow dr in dt.Select("TABLE_TYPE=‘TABLE‘"))
56 {
57 string s = dr["TABLE_NAME"].ToString();
58 _ddl.Items.Add(new ListItem(s));
59
60 }
61
62 cnn.Close();
63
64 return _ddl;
65 }
66
67 //返回table,详细表内容
68 public Table GetTable(string _tableName) {
69 Table _tbl = new Table();
70 cnn.Open();
71
72 cmd = new OleDbCommand("SELECT * FROM "+_tableName, cnn);
73 datar = cmd.ExecuteReader();
74
75
76 int i_fcount = datar.FieldCount;
77
78 TableHeaderRow thr = new TableHeaderRow();
79 for (int i = 0; i < i_fcount; i++)
80 {
81 TableHeaderCell thd = new TableHeaderCell();
82 thd.Text = datar.GetName(i);
83 thr.Cells.Add(thd);
84
85 }
86 _tbl.Rows.Add(thr);
87
88
89
90 while (datar.Read())
91 {
92 TableRow tr = new TableRow();
93 for (int i = 0; i < i_fcount; i++)
94 {
95 TableCell td = new TableCell();
96 td.Text = datar[i].ToString();
97 tr.Cells.Add(td);
98 }
99
100 _tbl.Rows.Add(tr);
101 }
102
103
104 cnn.Close();
105 return _tbl;
106 }
107
108 }
109
110
111
112
113
114 //文件管理类
115 public class superFile {
116
117 public string _fileName;
118 public string _fileTitle;
119 public string _fileDir="~/filesDownload";
120
121 //1
122 public superFile() {
123 _fileName = _fileTitle = "";
124 }
125
126 //2
127 public superFile(int _id) {
128 _fileName = _fileTitle = "";
129 superConn sconn = new superConn("fileMNG.mdb");
130 sconn.open();
131 string _sql = "SELECT * FROM T_FILES WHERE f_id=" + _id;
132 OleDbDataReader dr = sconn.GetDataReader(_sql);
133 if (dr.Read())
134 {
135 _fileTitle = dr["f_title"].ToString();
136 _fileName = dr["f_name"].ToString();
137 }
138 sconn.close();
139
140 }
141
142 //下载
143 public void fileDownload() {
144 string _path = System.IO.Path.Combine(HttpContext.Current.Server.MapPath(_fileDir),_fileName);
145
146 if (System.IO.File.Exists(_path))
147 {
148
149 HttpContext.Current.Response.Clear();
150 HttpContext.Current.Response.Buffer = true;
151
152 HttpContext.Current.Response.AddHeader("Content-Disposition", "attachment;filename=" + _fileTitle);
153 HttpContext.Current.Response.ContentType = "application/unknow";
154 HttpContext.Current.Response.TransmitFile(_path);
155 HttpContext.Current.Response.End();
156
157 }
158
159 }
160
161
162 }
163
164
165
166 //读取文章的类
167 public class superArtReader{
168
169 public string ArtTitle;
170 public string ArtContent;
171 private string ArtID;
172
173 /// <summary>
174 /// 构造一个空文章对象
175 /// </summary>
176 public superArtReader() {
177 ArtTitle = "";
178 ArtContent = "";
179 }
180
181
182
183 /// <summary>
184 /// 通过ID从数据库获取对应ID的文章
185 /// </summary>
186 /// <param name="artID"></param>
187 public superArtReader(string artID) {
188 ArtID = artID;
189 ArtTitle = "";
190 ArtContent = "";
191
192 superConn scnn = new superConn("DATA.mdb");
193 scnn.open();
194 string _sql = "select * from T_article WHERE art_id=" + artID;
195 OleDbDataReader dr = scnn.GetDataReader(_sql);
196 if (dr.Read())
197 {
198 ArtTitle = dr["art_ttl"].ToString();
199 ArtContent=dr["art_content"].ToString();
200 }
201 scnn.close();
202
203 }
204
205
206
207 }
208
209
210
211
212 //新闻类:superNews静态类
213 //superNewsItem动态类
214
215 //superNewsItem动态类
216 public class superNewsItem {
217 private int news_id;
218 private int news_ncid;
219 private string nc_ttl;
220
221 public string news_ttl;
222 public string news_guide;
223 public DateTime news_date;
224 public int news_imgid;
225 private string img_url;
226 public string news_content;
227 public int news_order;
228 public Boolean news_enable;
229 public Boolean news_home;
230
231 /// <summary>
232 /// 构造空新闻条目
233 /// </summary>
234 public superNewsItem(){
235
236
237 }
238
239 /// <summary>
240 /// 根据新闻的ID,从数据库获取新闻和相关信息;
241 /// </summary>
242 /// <param name="newsid"></param>
243 public superNewsItem(int newsid) {
244 superConn scnn = new superConn("DATA.mdb");
245 scnn.open();
246 string _sql = "SELECT T_NEWS.*, T_imgMng.img_url, List_newsClass.nc_ttl FROM List_newsClass INNER JOIN (T_imgMng INNER JOIN T_NEWS ON T_imgMng.img_id = T_NEWS.news_imgid) ON List_newsClass.nc_id = T_NEWS.news_ncid WHERE news_id=" + newsid;
247 OleDbDataReader dr = scnn.GetDataReader(_sql);
248 if (dr.Read()) {
249 news_id = int.Parse(dr["news_id"].ToString());
250 news_ncid = int.Parse(dr["news_ncid"].ToString());
251 nc_ttl = dr["nc_ttl"].ToString();
252 news_ttl = dr["news_ttl"].ToString();
253 news_guide = dr["news_guide"].ToString();
254 news_date = (DateTime)dr["news_date"];
255 news_imgid = int.Parse(dr["news_imgid"].ToString());
256 img_url = dr["img_url"].ToString();
257 news_content = dr["news_content"].ToString();
258 news_order = int.Parse(dr["news_order"] is DBNull?"0":dr["new_order"].ToString());
259 news_enable = (Boolean)dr["news_enable"];
260 news_home = (Boolean)dr["news_home"];
261 }
262 scnn.close();
263 }
264
265
266 //更细致:将新闻类别设定为一个类,有属性ID,ClassName, 返回一个新闻类别的类,更符合调用逻辑
267 /// <summary>
268 /// 获取类别名称
269 /// </summary>
270 /// <returns>string型,类别名称</returns>
271 public string getClassName() {
272 return nc_ttl;
273 }
274
275 public int getClassID() {
276 return news_ncid;
277 }
278
279 /// <summary>
280 /// 以类别ID来设置新闻所属类别
281 /// </summary>
282 /// <param name="classID"></param>
283 public void setClass(int classID) {
284 superConn scnn = new superConn("DATA.mdb");
285 scnn.open();
286 string _sql = "SELECT * FROM List_newsClass WHERE nc_id=" + classID;
287 OleDbDataReader dr = scnn.GetDataReader(_sql);
288 if (dr.Read()) {
289 news_ncid = int.Parse(dr["nc_id"].ToString());
290 nc_ttl = dr["nc_ttl"].ToString();
291 }
292 scnn.close();
293 }
294
295
296 }
297
298
299
300
301
302 //图片管理类
303 //1. 静态类,图片上传类,只提供对应的方法
304 public static class superImgUploader {
305
306
307
308 /// <summary>
309 /// 返回待上传文件的数量
310 /// </summary>
311 /// <returns></returns>
312 public static int imgsCount() {
313 int _count = 0;
314 foreach (superImg _img in (superImg[])HttpContext.Current.Session["UploadImgs"]) {
315 if (_img != null) { _count++; }
316 }
317 return _count;
318 }
319
320 /// <summary>
321 /// 添加一个图片对象到列表中
322 /// </summary>
323 /// <param name="ObjectImg">图片对象superImg</param>
324 /// <returns>返回添加结果</returns>
325 public static Boolean addImg(superImg ObjectImg) {
326 Boolean _added = false;
327 for (int i = 0; i < 10; i++) {
328 if (((superImg[])HttpContext.Current.Session["UploadImgs"])[i] == null) {
329 ((superImg[])HttpContext.Current.Session["UploadImgs"])[i] = ObjectImg;
330 _added = true;
331 break;
332 }
333 }
334 return _added;
335 }
336
337
338 /// <summary>
339 /// 从列表中移除指定图片对象
340 /// </summary>
341 /// <param name="imgIndex">0-9 图片列表编号索引</param>
342 public static void removeImg(int imgIndex) {
343 ((superImg[])HttpContext.Current.Session["UploadImgs"])[imgIndex] = null;
344 }
345
346
347 /// <summary>
348 /// 清除所有上传列表
349 /// </summary>
350 public static void clear() {
351 HttpContext.Current.Session["UploadImgs"] = new superImg[10];
352 }
353
354
355 /// <summary>
356 /// 上传列表中的所有文件
357 /// </summary>
358 public static void uploadAll() {
359 foreach (superImg si in (superImg[])HttpContext.Current.Session["UploadImgs"])
360 {
361 if (si != null)
362 {
363 if (si.readToUpload() == true)
364 {
365 string targPath = HttpContext.Current.Server.MapPath("~/test/" + si.targFname);
366 si.pstImgFile.SaveAs(targPath);
367
368 if (File.Exists(targPath))
369 {
370 si.uploaded();
371 }
372
373 }
374 }
375 }
376 clear();
377 }
378
379
380
381 public static void setCID(int i, int value) {
382 ((superImg[])HttpContext.Current.Session["UploadImgs"])[i].setCID(value);
383 }
384
385 }
386
387
388
389
390
391
392
393 //2.图片对象类
394 public class superImg {
395
396 public HttpPostedFile pstImgFile;
397 public string Title;
398 public string orgFname;
399 public string targFname;
400
401 private int img_id; //
402 public int img_cid; //需要默认值
403 private string img_cname; //
404
405 private Boolean uploadDone; //默认FALSH
406
407
408
409
410
411 /// <summary>
412 /// 构建一个空superImg对象
413 /// </summary>
414 public superImg() {
415
416 }
417
418
419 /// <summary>
420 /// 通过postedFile构建一个superImg对象
421 /// </summary>
422 /// <param name="pstFile"></param>
423 public superImg(HttpPostedFile _pstFile) {
424 pstImgFile = _pstFile;
425 Title = "新上传文件";
426 orgFname = _pstFile.FileName;
427 targFname = DateTime.Now.ToFileTime().ToString() + Path.GetExtension(orgFname);
428 img_cid = 1;
429 uploadDone = false;
430 }
431
432
433 /// <summary>
434 /// 通过数据库img_id构建对应的superImg对象
435 /// </summary>
436 /// <param name="imgID">数据表T_imgMng.img_id的值</param>
437 public superImg(int imgID) {
438
439 }
440
441
442 /// <summary>
443 /// 检测属性,并返回对象是否具备上传条件
444 /// </summary>
445 /// <returns></returns>
446 public Boolean readToUpload() {
447 Boolean _ready = true;
448 if (pstImgFile == null) { _ready = false; }
449 if (Title == null || Title == "") { _ready = false; }
450 if (orgFname == "" || orgFname == null) { _ready = false; }
451 if (targFname == "" || targFname == null) { _ready = false; }
452 if (uploadDone == true) { _ready = false; }
453
454 return _ready;
455 }
456
457
458 public void uploaded() {
459 uploadDone = true;
460 }
461
462
463 public void setCID(int cidValue) {
464 img_cid = cidValue;
465 }
466
467
468
469
470 }
471 }
时间： 2024-08-27 03:38:51