DataHelper.cs 42 KB

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283848586878889909192939495969798991001011021031041051061071081091101111121131141151161171181191201211221231241251261271281291301311321331341351361371381391401411421431441451461471481491501511521531541551561571581591601611621631641651661671681691701711721731741751761771781791801811821831841851861871881891901911921931941951961971981992002012022032042052062072082092102112122132142152162172182192202212222232242252262272282292302312322332342352362372382392402412422432442452462472482492502512522532542552562572582592602612622632642652662672682692702712722732742752762772782792802812822832842852862872882892902912922932942952962972982993003013023033043053063073083093103113123133143153163173183193203213223233243253263273283293303313323333343353363373383393403413423433443453463473483493503513523533543553563573583593603613623633643653663673683693703713723733743753763773783793803813823833843853863873883893903913923933943953963973983994004014024034044054064074084094104114124134144154164174184194204214224234244254264274284294304314324334344354364374384394404414424434444454464474484494504514524534544554564574584594604614624634644654664674684694704714724734744754764774784794804814824834844854864874884894904914924934944954964974984995005015025035045055065075085095105115125135145155165175185195205215225235245255265275285295305315325335345355365375385395405415425435445455465475485495505515525535545555565575585595605615625635645655665675685695705715725735745755765775785795805815825835845855865875885895905915925935945955965975985996006016026036046056066076086096106116126136146156166176186196206216226236246256266276286296306316326336346356366376386396406416426436446456466476486496506516526536546556566576586596606616626636646656666676686696706716726736746756766776786796806816826836846856866876886896906916926936946956966976986997007017027037047057067077087097107117127137147157167177187197207217227237247257267277287297307317327337347357367377387397407417427437447457467477487497507517527537547557567577587597607617627637647657667677687697707717727737747757767777787797807817827837847857867877887897907917927937947957967977987998008018028038048058068078088098108118128138148158168178188198208218228238248258268278288298308318328338348358368378388398408418428438448458468478488498508518528538548558568578588598608618628638648658668678688698708718728738748758768778788798808818828838848858868878888898908918928938948958968978988999009019029039049059069079089099109119129139149159169179189199209219229239249259269279289299309319329339349359369379389399409419429439449459469479489499509519529539549559569579589599609619629639649659669679689699709719729739749759769779789799809819829839849859869879889899909919929939949959969979989991000100110021003100410051006100710081009101010111012101310141015101610171018101910201021102210231024102510261027102810291030103110321033103410351036103710381039104010411042104310441045104610471048104910501051105210531054105510561057105810591060106110621063106410651066106710681069107010711072107310741075107610771078107910801081108210831084108510861087108810891090109110921093109410951096109710981099110011011102110311041105110611071108110911101111111211131114111511161117111811191120112111221123112411251126112711281129113011311132
  1. using Oracle.ManagedDataAccess.Client;
  2. using System;
  3. using System.Collections;
  4. using System.Collections.Generic;
  5. using System.Configuration;
  6. using System.Data;
  7. using System.Text;
  8. using UAS_MES.PublicMethod;
  9. namespace UAS_MES.DataOperate
  10. {
  11. class DataHelper
  12. {
  13. //系统默认的的连接字符串
  14. private string ConnectionStrings = Properties.Settings.Default.Properties["MES"].DefaultValue.ToString();
  15. //用户选择的数据库的连接字符串
  16. public static string DBConnectionString;
  17. public static OracleConnection connection = null;
  18. OracleCommand command = null;
  19. int ReconnectTime = 0;
  20. /// <summary>
  21. /// 执行构造函数的时候打开数据库的链接
  22. /// </summary>
  23. public DataHelper()
  24. {
  25. try
  26. {
  27. //如果选择的是默认数据则直接用配置文件的信息连接,否则选择数据库的账套信息
  28. if (DBConnectionString == null || DBConnectionString == ConnectionStrings)
  29. connection = new OracleConnection(ConnectionStrings);
  30. else
  31. connection = new OracleConnection(DBConnectionString);
  32. connection.Open();
  33. }
  34. catch (Exception e) { LogManager.DoLog(e.Message); }
  35. }
  36. /// <summary>
  37. /// 根据表名获取该表字段数据类型
  38. /// </summary>
  39. public DataTable GetColumnDataType(string TableName)
  40. {
  41. DataTable dt = new DataTable();
  42. command = new OracleCommand("select Column_Name,Data_Type from cols where TABLE_name=upper('" + TableName + "')", connection);
  43. Reconnect(command);
  44. OracleDataAdapter ad = new OracleDataAdapter(command);
  45. ad.Fill(dt);
  46. ad.Dispose();
  47. command.Dispose();
  48. return dt;
  49. }
  50. /// <summary>
  51. /// 获取第一行第一列的信息
  52. /// </summary>
  53. public object getFieldDataByCondition(string TableName, string Field, string Condition)
  54. {
  55. DataTable dt = new DataTable();
  56. string sql = "select " + Field + " from " + TableName + " where " + Condition;
  57. command = new OracleCommand(sql, connection);
  58. Reconnect(command);
  59. OracleDataAdapter ad = new OracleDataAdapter();
  60. ad.SelectCommand = command;
  61. try
  62. {
  63. ad.Fill(dt);
  64. }
  65. catch (Exception)
  66. {
  67. connection = new OracleConnection(DBConnectionString);
  68. connection.Open();
  69. command = new OracleCommand(sql, connection);
  70. ad = new OracleDataAdapter();
  71. ad.SelectCommand = command;
  72. ad.Fill(dt);
  73. }
  74. ad.Dispose();
  75. command.Dispose();
  76. if (dt.Rows.Count > 0)
  77. {
  78. return dt.Rows[0][0];
  79. }
  80. else
  81. {
  82. return "";
  83. }
  84. }
  85. /// <summary>
  86. /// 执行打印的SQL
  87. /// </summary>
  88. /// <param name="SQL">SQL语句</param>
  89. /// <param name="Parameters">动态添加的参数,主要根据条码枪扫描获取</param>
  90. /// <returns></returns>
  91. public object ExecutePrintSQL(string SQL, params string[] Parameters)
  92. {
  93. //按照?拆分数据,然后以:Param替换问号,同时添加参数
  94. string[] Param = SQL.Split('?');
  95. int ParamNum = Param.Length - 1;
  96. //条码打印必然存在需要维护的参数
  97. if (ParamNum > 0)
  98. {
  99. StringBuilder sb = new StringBuilder();
  100. for (int i = 0; i < ParamNum; i++)
  101. {
  102. sb.Append(Param[i] + ":Param" + i);
  103. }
  104. command = new OracleCommand(sb.ToString(), connection);
  105. for (int i = 0; i < ParamNum; i++)
  106. {
  107. command.Parameters.Add("Param" + i, OracleDbType.Varchar2, Parameters[i], ParameterDirection.Input);
  108. }
  109. OracleDataAdapter ad = new OracleDataAdapter(command);
  110. DataTable dt = new DataTable();
  111. ad.Fill(dt);
  112. ad.Dispose();
  113. command.Dispose();
  114. return dt;
  115. }
  116. return "参数错误,请检查SQL语句";
  117. }
  118. /// <summary>
  119. /// 获取指定表的记录的条数 ,带条件
  120. /// </summary>
  121. /// <returns></returns>
  122. public int getRowCount(string TableName, string Condition)
  123. {
  124. DataTable dt = new DataTable();
  125. string sql = "select count(1) from " + TableName + " where " + Condition;
  126. command = new OracleCommand(sql, connection);
  127. Reconnect(command);
  128. OracleDataAdapter ad = new OracleDataAdapter(command);
  129. ad.Fill(dt);
  130. ad.Dispose();
  131. command.Dispose();
  132. return int.Parse(dt.Rows[0][0].ToString());
  133. }
  134. /// <summary>
  135. /// 获取指定表的记录的条数 ,不带条件
  136. /// </summary>
  137. /// <param name="TableName"></param>
  138. /// <returns></returns>
  139. public int getRowCount(string TableName)
  140. {
  141. DataTable dt = new DataTable();
  142. string sql = "select count(1) from " + TableName;
  143. command = new OracleCommand(sql, connection);
  144. Reconnect(command);
  145. OracleDataAdapter ad = new OracleDataAdapter(command);
  146. ad.Fill(dt);
  147. ad.Dispose();
  148. command.Dispose();
  149. return int.Parse(dt.Rows[0][0].ToString());
  150. }
  151. /// <summary>
  152. /// 通过表名和获取单行的记录
  153. /// </summary>
  154. public DataTable getFieldsDataByCondition(string TableName, string[] Fields, string Condition)
  155. {
  156. DataTable dt = new DataTable();
  157. string sql = "select ";
  158. sql += AddField(Fields);
  159. sql += " from " + TableName + " where " + Condition + " and rownum=1";
  160. command = new OracleCommand(sql, connection);
  161. Reconnect(command);
  162. OracleDataAdapter ad = new OracleDataAdapter(command);
  163. try
  164. {
  165. ad.Fill(dt);
  166. }
  167. catch (Exception)
  168. {
  169. connection = new OracleConnection(DBConnectionString);
  170. connection.Open();
  171. command = new OracleCommand(sql, connection);
  172. ad = new OracleDataAdapter();
  173. ad.SelectCommand = command;
  174. ad.Fill(dt);
  175. }
  176. ad.Dispose();
  177. command.Dispose();
  178. return dt;
  179. }
  180. /// <summary>
  181. /// 将DataTable导入到指定的表中
  182. /// </summary>
  183. /// <param name="DataTable"></param>
  184. /// <param name="TableName"></param>
  185. public void InsertDataTable(DataTable DataTable, string TableName)
  186. {
  187. for (int i = 0; i < DataTable.Rows.Count; i++)
  188. {
  189. for (int j = 0; j < DataTable.Columns.Count; j++)
  190. {
  191. }
  192. }
  193. }
  194. /// <summary>
  195. /// 按分页获取数据
  196. /// </summary>
  197. /// <param name="TableName">表名</param>
  198. /// <param name="Fields">查询字段</param>
  199. /// <param name="CurrentPage">当前页面</param>
  200. /// <param name="PageSize">页面展示条数</param>
  201. /// <param name="Caller"></param>
  202. /// <returns></returns>
  203. // SELECT * FROM (SELECT A.* FROM (SELECT* FROM datalist) A WHERE ROWNUM <= 50) WHERE ROWNUM >= 21
  204. public DataTable getFieldsDatasByPageing(string TableName, string Fields, int CurrentPage, int PageSize, string Caller, params string[] condition)
  205. {
  206. DataTable dt = new DataTable();
  207. StringBuilder sql = new StringBuilder();
  208. //先查询出配置出去的列
  209. //获取查询的列
  210. string[] caption = GetCaptionFromField(Fields);
  211. //获取对应列的描述
  212. string[] field = GetField(Fields);
  213. sql.Append(" select * from (select RowNum RN, A.* from (select ");
  214. sql.Append(AddField(caption));
  215. if (condition.Length > 0)
  216. {
  217. if (condition[0] != null && condition[0].Trim() != "")
  218. sql.Append(" from " + TableName + " where " + condition[0] + " ) A where ROWNUM <=" + CurrentPage * PageSize + ") where RN>" + (CurrentPage - 1) * PageSize);
  219. else
  220. sql.Append(" from " + TableName + ") A where ROWNUM <= " + CurrentPage * PageSize + ") where RN> " + (CurrentPage - 1) * PageSize);
  221. }
  222. command = new OracleCommand(sql.ToString(), connection);
  223. Reconnect(command);
  224. OracleDataAdapter ad = new OracleDataAdapter(command);
  225. ad.Fill(dt);
  226. ad.Dispose();
  227. command.Dispose();
  228. dt.Columns.RemoveAt(0);
  229. foreach (DataColumn dc in dt.Columns)
  230. {
  231. dc.ColumnName = field[dt.Columns.IndexOf(dc)];
  232. dc.Caption = caption[dt.Columns.IndexOf(dc)];
  233. }
  234. return dt;
  235. }
  236. /// <summary>
  237. /// 通过表名,字段和条件获取DataTable类型的数据
  238. /// </summary>
  239. public DataTable getFieldsDatasByCondition(string TableName, string[] Fields, string Condition)
  240. {
  241. DataTable dt = new DataTable();
  242. string sql = "select ";
  243. sql += AddField(Fields);
  244. sql += " from " + TableName + " where " + Condition;
  245. command = new OracleCommand(sql, connection);
  246. Reconnect(command);
  247. OracleDataAdapter ad = new OracleDataAdapter(command);
  248. try
  249. {
  250. ad.Fill(dt);
  251. }
  252. catch (Exception)
  253. {
  254. connection = new OracleConnection(DBConnectionString);
  255. connection.Open();
  256. command = new OracleCommand(sql, connection);
  257. ad = new OracleDataAdapter();
  258. ad.SelectCommand = command;
  259. ad.Fill(dt);
  260. }
  261. ad.Dispose();
  262. command.Dispose();
  263. return dt;
  264. }
  265. /// <summary>
  266. /// 通过表名,字段获取DataTable类型的数据
  267. /// </summary>
  268. public DataTable getFieldsDatas(string TableName, string Fields)
  269. {
  270. DataTable dt = new DataTable();
  271. string sql = "select ";
  272. sql += Fields;
  273. sql += " from " + TableName;
  274. command = new OracleCommand(sql, connection);
  275. Reconnect(command);
  276. OracleDataAdapter ad = new OracleDataAdapter(command);
  277. ad.SelectCommand = command;
  278. try
  279. {
  280. ad.Fill(dt);
  281. }
  282. catch (Exception)
  283. {
  284. connection = new OracleConnection(DBConnectionString);
  285. connection.Open();
  286. command = new OracleCommand(sql, connection);
  287. ad = new OracleDataAdapter();
  288. ad.SelectCommand = command;
  289. ad.Fill(dt);
  290. }
  291. ad.Dispose();
  292. command.Dispose();
  293. return dt;
  294. }
  295. /// <summary>
  296. /// 根据DataTable和指定的表名更新数据,如果需要保存新增的数据则需要传递一条Insert的SQL
  297. /// </summary>
  298. /// <param name="DataTable"></param>
  299. /// <param name="TableName"></param>
  300. /// <param name="Condition"></param>
  301. public void UpDateTableByCondition(DataTable DataTable, string TableName, string PrimaryKey, params string[] sql)
  302. {
  303. if (DataTable == null)
  304. {
  305. return;
  306. }
  307. StringBuilder sb = new StringBuilder();
  308. //预防插入的DataTable中存在不属于该表的列,在进行下一步操作之前全部剔除
  309. DataTable data = (DataTable)ExecuteSql("select Column_Name,Data_Type from cols where TABLE_name=upper('" + TableName + "')", "select");
  310. //将所有的字段拼接起来
  311. for (int i = 0; i < data.Rows.Count; i++)
  312. {
  313. sb.Append("#" + data.Rows[i]["Column_Name"].ToString());
  314. }
  315. //移除掉所有不属于该表的列
  316. for (int i = DataTable.Columns.Count - 1; i >= 0; i--)
  317. {
  318. if (!sb.ToString().Contains(DataTable.Columns[i].ColumnName.ToUpper()))
  319. {
  320. DataTable.Columns.RemoveAt(i);
  321. }
  322. }
  323. sb.Clear();
  324. //计算有多少个是新加的行,根据主键为空来进行判断
  325. int NewRowCount = 0;
  326. for (int i = 0; i < DataTable.Rows.Count; i++)
  327. {
  328. if (DataTable.Rows[i][PrimaryKey] == null || DataTable.Rows[i][PrimaryKey].ToString() == "")
  329. {
  330. NewRowCount = NewRowCount + 1;
  331. }
  332. }
  333. if (sql.Length > 0)
  334. {
  335. if (NewRowCount > 0)
  336. {
  337. //获取参数的个数
  338. int paramsNum = sql[0].Split(':').Length - 1;
  339. //解析参数的数据
  340. string[] param = GetParamFromSQL(sql[0]);
  341. //新建一个二维数组去
  342. string[][] param_array = new string[paramsNum][];
  343. //实例化每个一维数组
  344. for (int i = 0; i < paramsNum; i++)
  345. {
  346. param_array[i] = new string[NewRowCount];
  347. }
  348. //设置每列参数的索引
  349. int num = 0;
  350. //变量所有的行,如果有主键为空的则移除,不为空的进行参数的拼接
  351. for (int i = DataTable.Rows.Count - 1; i >= 0; i--)
  352. {
  353. if (DataTable.Rows[i][PrimaryKey] == null || DataTable.Rows[i][PrimaryKey].ToString() == "")
  354. {
  355. //当为新添加行的时候才去设置参数,设置过后索引+1
  356. for (int j = 0; j < paramsNum; j++)
  357. {
  358. param_array[j][num] = DataTable.Rows[i][param[j]].ToString();
  359. }
  360. DataTable.Rows.RemoveAt(i);
  361. num++;
  362. }
  363. }
  364. BatchInsertDataTable(sql[0], param, param_array);
  365. }
  366. }
  367. //不是新增行的启用更新的方法
  368. sb.Append("update " + TableName + " set ");
  369. //拼接语句,特殊处理日期
  370. foreach (DataColumn dc in DataTable.Columns)
  371. {
  372. if (!dc.DataType.ToString().Equals("System.DateTime"))
  373. {
  374. sb.Append(dc.Caption + "=:" + dc.Caption + ",");
  375. }
  376. else
  377. {
  378. sb.Append(dc.Caption + "=:" + dc.Caption + ",");
  379. }
  380. }
  381. sb.Remove(sb.Length - 1, 1);
  382. sb.Append(" where " + PrimaryKey + "=:" + PrimaryKey);
  383. command = new OracleCommand(sb.ToString(), connection);
  384. OracleDataAdapter ad = new OracleDataAdapter(command);
  385. // 参数的长度是DataTable的行数决定的
  386. command.ArrayBindCount = DataTable.Rows.Count;
  387. //默认全部是Varchar2类型的
  388. OracleDbType ob = OracleDbType.Varchar2;
  389. for (int i = 0; i < DataTable.Columns.Count; i++)
  390. {
  391. object[] param = new object[DataTable.Rows.Count];
  392. for (int j = 0; j < DataTable.Rows.Count; j++)
  393. {
  394. DateTime dt = DateTime.Now;
  395. if (DateTime.TryParse(DataTable.Rows[j][i].ToString(), out dt))
  396. {
  397. param[j] = dt;
  398. ob = OracleDbType.Date;
  399. }
  400. else
  401. {
  402. ob = OracleDbType.Varchar2;
  403. param[j] = DataTable.Rows[j][i];
  404. }
  405. }
  406. //添加批量更新的参数
  407. command.Parameters.Add(new OracleParameter(DataTable.Columns[i].Caption, ob, param, ParameterDirection.Input));
  408. }
  409. ad.UpdateCommand = command;
  410. ad.Update(DataTable);
  411. ad.Dispose();
  412. command.Dispose();
  413. }
  414. /// <summary>
  415. /// 获取DbFind的数据的DataTable的结构
  416. /// </summary>
  417. /// <param name="field"></param>
  418. /// <param name="caller"></param>
  419. /// <returns></returns>
  420. public DataTable GetDbFindDataTable(string field, string caller)
  421. {
  422. string sql = "select * from dbfindsetui where ds_caller='" + caller + "' and ds_whichui='" + field + "'";
  423. DataTable dt = (DataTable)ExecuteSql(sql, "select");
  424. if (dt.Rows.Count != 0)
  425. {
  426. //通过#号分割字段
  427. string[] dbfield = dt.Rows[0]["ds_findtoui"].ToString().Split('#');
  428. string[] cnfield = dt.Rows[0]["ds_dbcaption"].ToString().Split('#');
  429. //获取查询要查询的Table
  430. string dbtable = dt.Rows[0]["ds_tables"].ToString();
  431. //拼接查询的字段
  432. for (int i = 0; i < dbfield.Length; i++)
  433. {
  434. dbfield[i] = dbfield[i].Split(',')[0];
  435. }
  436. //新建一个空的DataTable
  437. DataTable dt1 = new DataTable();
  438. //往空的DataTable添加结构,ColumnName是中文,Caption是实际的字段名称
  439. for (int i = 0; i < cnfield.Length; i++)
  440. {
  441. dt1.Columns.Add(cnfield[i]);
  442. dt1.Columns[i].Caption = dbfield[i];
  443. }
  444. //返回一个带有结构的空的DataTable
  445. //DbFind.BindTable1 = dbtable;
  446. return dt1;
  447. }
  448. else
  449. {
  450. return null;
  451. }
  452. }
  453. /// <summary>
  454. /// 检测内容是否存在
  455. /// </summary>
  456. /// <param name="TableName"></param>
  457. /// <param name="Condition"></param>
  458. /// <returns></returns>
  459. public bool CheckExist(string TableName, string Condition)
  460. {
  461. string sql = "select count(1) from " + TableName + " where " + Condition;
  462. command = new OracleCommand(sql, connection);
  463. Reconnect(command);
  464. OracleDataAdapter ad = new OracleDataAdapter(command);
  465. DataTable dt = new DataTable();
  466. try
  467. {
  468. ad.Fill(dt);
  469. }
  470. catch (Exception)
  471. {
  472. connection = new OracleConnection(DBConnectionString);
  473. connection.Open();
  474. command = new OracleCommand(sql, connection);
  475. ad = new OracleDataAdapter();
  476. ad.SelectCommand = command;
  477. ad.Fill(dt);
  478. }
  479. ad.Dispose();
  480. command.Dispose();
  481. return int.Parse(dt.Rows[0][0].ToString()) > 0;
  482. }
  483. /// <summary>
  484. /// 直接执行SQL,同时传入SQL的类型
  485. /// </summary>
  486. /// <param name="SQL"></param>
  487. /// <param name="Type"></param>
  488. /// <returns></returns>
  489. public object ExecuteSql(string SQL, string Type, params object[] names)
  490. {
  491. object result = null;
  492. command = new OracleCommand(SQL, connection);
  493. Reconnect(command);
  494. //用来拼接参数的
  495. if (names.Length > 0)
  496. {
  497. string[] par = SQL.Split(':');
  498. //用来存参数的数组
  499. StringBuilder[] addpar = new StringBuilder[par.Length - 1];
  500. for (int i = 0; i < par.Length - 1; i++)
  501. {
  502. //新建一个char类型的数组用来存储每个字节的变量
  503. char[] c = par[i + 1].ToCharArray();
  504. addpar[i] = new StringBuilder();
  505. for (int j = 0; j < c.Length; j++)
  506. {
  507. if (c[j] != ' ' && c[j] != ',' && c[j] != ')')
  508. {
  509. addpar[i].Append(c[j]);
  510. }
  511. else
  512. {
  513. break;
  514. }
  515. }
  516. }
  517. for (int i = 0; i < addpar.Length; i++)
  518. command.Parameters.Add(new OracleParameter(addpar[i].ToString(), OracleDbType.Varchar2, names[i], ParameterDirection.Input));
  519. }
  520. switch (Type.ToUpper())
  521. {
  522. case "SELECT":
  523. OracleDataAdapter ad = new OracleDataAdapter(command);
  524. result = new DataTable();
  525. try
  526. {
  527. ad.Fill((DataTable)result);
  528. }
  529. catch (Exception)
  530. {
  531. connection = new OracleConnection(DBConnectionString);
  532. connection.Open();
  533. command = new OracleCommand(SQL, connection);
  534. ad = new OracleDataAdapter();
  535. ad.SelectCommand = command;
  536. ad.Fill((DataTable)result);
  537. }
  538. break;
  539. case "DELETE":
  540. try
  541. {
  542. result = command.ExecuteNonQuery();
  543. }
  544. catch (Exception)
  545. {
  546. command.Connection = new OracleConnection(DBConnectionString);
  547. command.Connection.Open();
  548. result = command.ExecuteNonQuery();
  549. }
  550. break;
  551. case "UPDATE":
  552. try
  553. {
  554. result = command.ExecuteNonQuery();
  555. }
  556. catch (Exception)
  557. {
  558. command.Connection = new OracleConnection(DBConnectionString);
  559. command.Connection.Open();
  560. result = command.ExecuteNonQuery();
  561. }
  562. break;
  563. case "INSERT":
  564. try
  565. {
  566. result = command.ExecuteNonQuery();
  567. }
  568. catch (Exception)
  569. {
  570. command.Connection = new OracleConnection(DBConnectionString);
  571. command.Connection.Open();
  572. result = command.ExecuteNonQuery();
  573. }
  574. break;
  575. }
  576. command.Dispose();
  577. return result;
  578. }
  579. /// <summary>
  580. /// 为了同步BS端的条码维护,检测时允许问号的存在,在检测时默认将问号换成:Param参数
  581. /// </summary>
  582. /// <param name="SQL"></param>
  583. public void CheckSQL(string SQL)
  584. {
  585. SQL = SQL.Replace("?", ":Param");
  586. command = new OracleCommand(SQL, connection);
  587. command.ExecuteNonQuery();
  588. command.Dispose();
  589. }
  590. public int GetDistinctRowCount(string TableName, string Field)
  591. {
  592. DataTable dt = new DataTable();
  593. string sql = "select distinct count('" + Field + "') from " + TableName;
  594. command = new OracleCommand(sql, connection);
  595. Reconnect(command);
  596. OracleDataAdapter ad = new OracleDataAdapter(command);
  597. try
  598. {
  599. ad.Fill(dt);
  600. }
  601. catch (Exception)
  602. {
  603. connection = new OracleConnection(DBConnectionString);
  604. connection.Open();
  605. command = new OracleCommand(sql, connection);
  606. ad = new OracleDataAdapter();
  607. ad.SelectCommand = command;
  608. ad.Fill(dt);
  609. }
  610. ad.Dispose();
  611. command.Dispose();
  612. return int.Parse(dt.Rows[0][0].ToString());
  613. }
  614. /// <summary>
  615. /// 根据Caller获取流水号
  616. /// </summary>
  617. /// <param name="Caller"></param>
  618. /// <returns></returns>
  619. public string GetSerialNumberByCaller(string Caller)
  620. {
  621. string SerialNumber = getFieldDataByCondition("MaxNumbers", "mn_number", "mn_tablename='" + Caller + "'").ToString();
  622. UpdateByCondition("MaxNumbers", "mn_number=mn_number+1", "mn_tablename='" + Caller + "'");
  623. return SerialNumber;
  624. }
  625. /// <summary>
  626. /// 根据主键ID删除表的数据
  627. /// </summary>
  628. /// <param name="TableName">表名</param>
  629. /// <param name="ID">主键</param>
  630. /// <param name="DeleteID">需要删除主键ID的数组</param>
  631. public void DeleteDataByID(string TableName, string ID, string[] DeleteID)
  632. {
  633. string sql = "delete from " + TableName + " where " + ID + " =:DeleteID";
  634. command = new OracleCommand(sql, connection);
  635. Reconnect(command);
  636. command.ArrayBindCount = DeleteID.Length;
  637. command.Parameters.Add(new OracleParameter("DeleteID", OracleDbType.Long, DeleteID, ParameterDirection.Input));
  638. try
  639. {
  640. command.ExecuteNonQuery();
  641. }
  642. catch (Exception)
  643. {
  644. command.Connection = new OracleConnection(DBConnectionString);
  645. command.Connection.Open();
  646. command.ExecuteNonQuery();
  647. }
  648. command.Dispose();
  649. }
  650. /// <summary>
  651. /// 通过序列的名称获取序列
  652. /// </summary>
  653. /// <param name="SeqName"></param>
  654. /// <returns></returns>
  655. public string GetSEQ(string SeqName)
  656. {
  657. DataTable dt = new DataTable();
  658. dt = (DataTable)ExecuteSql("SELECT " + SeqName + ".NEXTVAL FROM DUAL", "select");
  659. return dt.Rows[0][0].ToString();
  660. }
  661. /// <summary>
  662. /// 通过序列的名称获取序列
  663. /// </summary>
  664. /// <param name="SeqName"></param>
  665. /// <returns></returns>
  666. public string[] GetSEQ(string SeqName, int Num)
  667. {
  668. DataTable dt = new DataTable();
  669. dt = (DataTable)ExecuteSql("SELECT " + SeqName + ".nextval FROM DUAL CONNECT BY LEVEL<=" + Num, "select");
  670. string[] SerialNum = new string[dt.Rows.Count];
  671. for (int i = 0; i < dt.Rows.Count; i++)
  672. {
  673. SerialNum[i] = dt.Rows[i][0].ToString();
  674. }
  675. return SerialNum;
  676. }
  677. public void SaveDataTable(DataTable dt, string TableName, string ID, params string[] sql)
  678. {
  679. if (dt == null)
  680. {
  681. return;
  682. }
  683. StringBuilder sb = new StringBuilder();
  684. //预防插入的DataTable中存在不属于该表的列,在进行下一步操作之前全部剔除
  685. DataTable data = (DataTable)ExecuteSql("select Column_Name,Data_Type from cols where TABLE_name=upper('" + TableName + "')", "select");
  686. //将所有的字段拼接起来
  687. for (int i = 0; i < data.Rows.Count; i++)
  688. {
  689. sb.Append("#" + data.Rows[i]["Column_Name"].ToString());
  690. }
  691. //移除掉所有不属于该表的列
  692. for (int i = dt.Columns.Count - 1; i >= 0; i--)
  693. {
  694. if (!sb.ToString().Contains(dt.Columns[i].ColumnName.ToUpper()))
  695. {
  696. dt.Columns.RemoveAt(i);
  697. }
  698. }
  699. sb.Clear();
  700. //计算有多少个是新加的行,根据主键为空来进行判断
  701. int NewRowCount = 0;
  702. for (int i = 0; i < dt.Rows.Count; i++)
  703. {
  704. if (dt.Rows[i][ID] == null || dt.Rows[i][ID].ToString() == "")
  705. {
  706. NewRowCount = NewRowCount + 1;
  707. }
  708. }
  709. if (sql.Length > 0)
  710. {
  711. if (NewRowCount > 0)
  712. {
  713. //获取参数的个数
  714. int paramsNum = sql[0].Split(':').Length - 1;
  715. //解析参数的数据
  716. string[] param = GetParamFromSQL(sql[0]);
  717. //新建一个二维数组去
  718. string[][] param_array = new string[paramsNum][];
  719. //实例化每个一维数组
  720. for (int i = 0; i < paramsNum; i++)
  721. {
  722. param_array[i] = new string[NewRowCount];
  723. }
  724. //设置每列参数的索引
  725. int num = 0;
  726. //变量所有的行,如果有主键为空的则移除,不为空的进行参数的拼接
  727. for (int i = dt.Rows.Count - 1; i >= 0; i--)
  728. {
  729. if (dt.Rows[i][ID] == null || dt.Rows[i][ID].ToString() == "")
  730. {
  731. //当为新添加行的时候才去设置参数,设置过后索引+1
  732. for (int j = 0; j < paramsNum; j++)
  733. {
  734. param_array[j][num] = dt.Rows[i][param[j]].ToString();
  735. }
  736. dt.Rows.RemoveAt(i);
  737. num++;
  738. }
  739. }
  740. BatchInsertDataTable(sql[0], param, param_array);
  741. }
  742. }
  743. sb.Clear();
  744. sb.Append("update " + TableName + " set ");
  745. int ColumnCount = dt.Columns.Count;
  746. int RowCount = dt.Rows.Count;
  747. //存数据的参数
  748. List<string[]> Parameter = new List<string[]>();
  749. //存参数名的参数
  750. string[] ParName = new string[ColumnCount];
  751. for (int i = 0; i < ColumnCount; i++)
  752. {
  753. ParName[i] = dt.Columns[i].ColumnName;
  754. if (i == dt.Columns.Count - 1)
  755. sb.Append(dt.Columns[i].ColumnName + "=:" + dt.Columns[i].ColumnName);
  756. else
  757. sb.Append(dt.Columns[i].ColumnName + "=:" + dt.Columns[i].ColumnName + ",");
  758. }
  759. sb.Append(" where " + ID + " =:" + ID);
  760. //先添加参数
  761. Parameter.Add(ParName);
  762. //添加参数的具体内容
  763. for (int i = 0; i < ColumnCount; i++)
  764. {
  765. string[] par = new string[RowCount];
  766. for (int j = 0; j < RowCount; j++)
  767. {
  768. par[j] = dt.Rows[j][i].ToString();
  769. }
  770. Parameter.Add(par);
  771. }
  772. BatchInsert(sb.ToString(), Parameter.ToArray());
  773. }
  774. /// <summary>
  775. /// 批量通过SQL来执行插入操作 ,参数的第一个数一个string[]数组,用来传递需要添加的参数的名称
  776. /// 之后的是名称参数数组对应的 ,所有的插入参数数据长度必须是一致的
  777. /// </summary>
  778. /// <param name="sql"></param>
  779. /// <param name="names"></param>
  780. public void BatchInsert(string sql, params object[][] names)
  781. {
  782. command = new OracleCommand(sql, connection);
  783. Reconnect(command);
  784. command.ArrayBindCount = names[1].Length;
  785. //因为第一个数组保存的是参数的名称,所以循环从1而不是0开始
  786. //将第一个数组的下标固定为0作为循环添加的参数的名称
  787. for (int i = 1; i <= names[0].Length; i++)
  788. {
  789. command.Parameters.Add(new OracleParameter(names[0][i - 1].ToString(), OracleDbType.Varchar2, names[i], ParameterDirection.Input));
  790. }
  791. try
  792. {
  793. command.ExecuteNonQuery();
  794. }
  795. catch (Exception)
  796. {
  797. command.Connection = new OracleConnection(DBConnectionString);
  798. command.Connection.Open();
  799. command.ExecuteNonQuery();
  800. }
  801. command.Dispose();
  802. }
  803. public void BatchInsertDataTable(string sql, string[] param, params object[][] param1)
  804. {
  805. command = new OracleCommand(sql, connection);
  806. Reconnect(command);
  807. command.ArrayBindCount = param1[0].Length;
  808. //因为第一个数组保存的是参数的名称,所以循环从1而不是0开始
  809. //将第一个数组的下标固定为0作为循环添加的参数的名称
  810. for (int i = 0; i < param.Length; i++)
  811. {
  812. command.Parameters.Add(new OracleParameter(param[i].ToString(), OracleDbType.Varchar2, param1[i], ParameterDirection.Input));
  813. }
  814. try
  815. {
  816. command.ExecuteNonQuery();
  817. }
  818. catch (Exception)
  819. {
  820. command.Connection = new OracleConnection(DBConnectionString);
  821. command.Connection.Open();
  822. command.ExecuteNonQuery();
  823. }
  824. command.Dispose();
  825. }
  826. /// <summary>
  827. /// 取Configs表中的配置,进行该客户是否执行某个操作
  828. /// </summary>
  829. /// <param name="Code"></param>
  830. /// <param name="Caller"></param>
  831. /// <returns></returns>
  832. public object GetConfig(string Code, string Caller)
  833. {
  834. DataTable dt = new DataTable();
  835. string sql = "select Data from configs where code='" + Code + "' and caller='" + Caller + "'";
  836. dt = (DataTable)ExecuteSql(sql, "select");
  837. if (dt.Rows.Count == 0)
  838. {
  839. return "";
  840. }
  841. else
  842. {
  843. return dt.Rows[0]["Data"];
  844. }
  845. }
  846. //将数据类型的列类型转换为DataTable
  847. public DataTable DataTypeColumnToDataTable(DataTable dt)
  848. {
  849. DataTable dt1 = new DataTable();
  850. dt1.Rows.Add();
  851. foreach (DataRow dr in dt.Rows)
  852. {
  853. dt1.Columns.Add(dr[0].ToString());
  854. int index = dt.Rows.IndexOf(dr);
  855. if (dr[1].ToString() == "NUMBER")
  856. {
  857. dt1.Rows[0][index] = 0;
  858. }
  859. if (dr[1].ToString() == "VARCHAR2")
  860. {
  861. dt1.Rows[0][index] = "这是一段文字";
  862. }
  863. if (dr[1].ToString() == "DATE")
  864. {
  865. dt1.Rows[0][index] = DateTime.Now.ToString("yyyy-MM-dd");
  866. }
  867. if (dr[1].ToString() == "FLOAT")
  868. {
  869. dt1.Rows[0][index] = 1.0;
  870. }
  871. if (dr[1].ToString() == "CLOB")
  872. {
  873. dt1.Rows[0][index] = "一段长文字";
  874. }
  875. }
  876. return dt1;
  877. }
  878. /// <summary>
  879. /// 通过条件更新
  880. /// </summary>
  881. /// <param name="TableName"></param>
  882. /// <param name="update"></param>
  883. /// <param name="condition"></param>
  884. public string UpdateByCondition(string TableName, string update, string condition)
  885. {
  886. string sql = "update " + TableName + " set " + update + " where " + condition;
  887. command = new OracleCommand(sql, connection);
  888. Reconnect(command);
  889. try
  890. {
  891. command.ExecuteNonQuery();
  892. }
  893. catch (Exception)
  894. {
  895. command.Connection = new OracleConnection(DBConnectionString);
  896. command.Connection.Open();
  897. command.ExecuteNonQuery();
  898. }
  899. command.Dispose();
  900. return sql;
  901. }
  902. /// <summary>
  903. /// 调用存储过程
  904. /// </summary>
  905. /// <param name="ProcedureName"></param>
  906. /// <param name="param"></param>
  907. public void CallProcedure(string ProcedureName, ref string[] param)
  908. {
  909. command = new OracleCommand(ProcedureName);
  910. command.Connection = connection;
  911. Reconnect(command);
  912. command.CommandText = ProcedureName;
  913. command.CommandType = CommandType.StoredProcedure;
  914. for (int i = 0; i < param.Length; i++)
  915. command.Parameters.Add(new OracleParameter(param[i].ToString(), OracleDbType.Varchar2, 2000, param[i], ParameterDirection.InputOutput));
  916. try
  917. {
  918. command.ExecuteNonQuery();
  919. }
  920. catch (Exception)
  921. {
  922. command.Connection = new OracleConnection(DBConnectionString);
  923. command.Connection.Open();
  924. command.ExecuteNonQuery();
  925. }
  926. for (int i = 0; i < command.Parameters.Count; i++)
  927. param[i] = command.Parameters[i].Value.ToString();
  928. command.Dispose();
  929. }
  930. /// <summary>
  931. /// 出现异常进行回滚的执行方法
  932. /// </summary>
  933. /// <param name="SQL"></param>
  934. public void ExecuteSQLTran(params string[] SQL)
  935. {
  936. OracleTransaction tx = connection.BeginTransaction();
  937. command = new OracleCommand();
  938. command.Connection = connection;
  939. command.Transaction = tx;
  940. try
  941. {
  942. foreach (string sql in SQL)
  943. {
  944. if (!String.IsNullOrEmpty(sql))
  945. {
  946. command.CommandText = sql;
  947. try
  948. {
  949. command.ExecuteNonQuery();
  950. }
  951. catch (Exception)
  952. {
  953. command.Connection = new OracleConnection(DBConnectionString);
  954. command.Connection.Open();
  955. command.ExecuteNonQuery();
  956. }
  957. }
  958. }
  959. tx.Commit();
  960. }
  961. catch (System.Data.OracleClient.OracleException E)
  962. {
  963. tx.Rollback();
  964. throw new Exception(E.Message);
  965. }
  966. command.Dispose();
  967. }
  968. /// <summary>
  969. /// 用于将string 的数组转换成SQL的查询内容
  970. /// </summary>
  971. /// <param name="Fields"></param>
  972. /// <returns></returns>
  973. private string AddField(string[] Fields)
  974. {
  975. string sql = " ";
  976. foreach (string field in Fields)
  977. {
  978. sql += field + ",";
  979. }
  980. return sql.Substring(0, sql.Length - 1);
  981. }
  982. /// <summary>
  983. /// 通过查询的内容获取到字段的描述
  984. /// </summary>
  985. /// <param name="field"></param>
  986. /// <returns></returns>
  987. private static string[] GetCaptionFromField(string field)
  988. {
  989. string[] caption = field.Split(',');
  990. for (int i = 0; i < caption.Length; i++)
  991. {
  992. caption[i] = caption[i].Substring(0, caption[i].LastIndexOf(" as ")).Trim();
  993. }
  994. return caption;
  995. }
  996. /// <summary>
  997. /// 通过查询的语句获取查询的字段
  998. /// </summary>
  999. /// <param name="field"></param>
  1000. /// <returns></returns>
  1001. private static string[] GetField(string field)
  1002. {
  1003. string[] fields = field.Split(',');
  1004. for (int i = 0; i < fields.Length; i++)
  1005. {
  1006. fields[i] = fields[i].Substring(fields[i].LastIndexOf(" as ") + 4, fields[i].Length - fields[i].LastIndexOf(" as ") - 4).Trim();
  1007. }
  1008. return fields;
  1009. }
  1010. public object GetLabelParam(string sql)
  1011. {
  1012. DataTable dt = new DataTable();
  1013. command = new OracleCommand(sql, connection);
  1014. Reconnect(command);
  1015. OracleDataAdapter ad = new OracleDataAdapter();
  1016. ad.SelectCommand = command;
  1017. try
  1018. {
  1019. ad.Fill(dt);
  1020. }
  1021. catch (Exception)
  1022. {
  1023. connection = new OracleConnection(DBConnectionString);
  1024. connection.Open();
  1025. command = new OracleCommand(sql, connection);
  1026. ad = new OracleDataAdapter();
  1027. ad.SelectCommand = command;
  1028. ad.Fill(dt);
  1029. }
  1030. if (dt.Rows.Count > 0)
  1031. {
  1032. ad.Dispose();
  1033. command.Dispose();
  1034. return dt.Rows[0][0];
  1035. }
  1036. else
  1037. {
  1038. command.Dispose();
  1039. return "";
  1040. }
  1041. }
  1042. public static string[] GetParamFromSQL(string SQL)
  1043. {
  1044. string[] par = SQL.Split(':');
  1045. //用来存参数的数组
  1046. StringBuilder[] addpar = new StringBuilder[par.Length - 1];
  1047. string[] param = new string[par.Length - 1];
  1048. for (int i = 0; i < par.Length - 1; i++)
  1049. {
  1050. //新建一个char类型的数组用来存储每个字节的变量
  1051. char[] c = par[i + 1].ToCharArray();
  1052. addpar[i] = new StringBuilder();
  1053. for (int j = 0; j < c.Length; j++)
  1054. {
  1055. if (c[j] != ' ' && c[j] != ',' && c[j] != ')')
  1056. {
  1057. addpar[i].Append(c[j]);
  1058. }
  1059. else
  1060. {
  1061. break;
  1062. }
  1063. }
  1064. }
  1065. for (int i = 0; i < par.Length - 1; i++)
  1066. {
  1067. param[i] = addpar[i].ToString();
  1068. }
  1069. return param;
  1070. }
  1071. public void Dispose()
  1072. {
  1073. }
  1074. private void Reconnect(OracleCommand cmd)
  1075. {
  1076. if (cmd.Connection.State == ConnectionState.Closed)
  1077. {
  1078. cmd.Connection.Open();
  1079. LogManager.DoLog("超时重连");
  1080. }
  1081. }
  1082. }
  1083. }