DataHelper.cs 42 KB

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  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. ad.Fill(dt);
  467. ad.Dispose();
  468. command.Dispose();
  469. return int.Parse(dt.Rows[0][0].ToString()) > 0;
  470. }
  471. /// <summary>
  472. /// 直接执行SQL,同时传入SQL的类型
  473. /// </summary>
  474. /// <param name="SQL"></param>
  475. /// <param name="Type"></param>
  476. /// <returns></returns>
  477. public object ExecuteSql(string SQL, string Type, params object[] names)
  478. {
  479. object result = null;
  480. command = new OracleCommand(SQL, connection);
  481. Reconnect(command);
  482. //用来拼接参数的
  483. if (names.Length > 0)
  484. {
  485. string[] par = SQL.Split(':');
  486. //用来存参数的数组
  487. StringBuilder[] addpar = new StringBuilder[par.Length - 1];
  488. for (int i = 0; i < par.Length - 1; i++)
  489. {
  490. //新建一个char类型的数组用来存储每个字节的变量
  491. char[] c = par[i + 1].ToCharArray();
  492. addpar[i] = new StringBuilder();
  493. for (int j = 0; j < c.Length; j++)
  494. {
  495. if (c[j] != ' ' && c[j] != ',')
  496. {
  497. addpar[i].Append(c[j]);
  498. }
  499. else
  500. {
  501. break;
  502. }
  503. }
  504. }
  505. for (int i = 0; i < addpar.Length; i++)
  506. command.Parameters.Add(new OracleParameter(addpar[i].ToString(), OracleDbType.Varchar2, names[i], ParameterDirection.Input));
  507. }
  508. switch (Type.ToUpper())
  509. {
  510. case "SELECT":
  511. OracleDataAdapter ad = new OracleDataAdapter(command);
  512. result = new DataTable();
  513. try
  514. {
  515. ad.Fill((DataTable)result);
  516. }
  517. catch (Exception)
  518. {
  519. connection = new OracleConnection(DBConnectionString);
  520. connection.Open();
  521. command = new OracleCommand(SQL, connection);
  522. ad = new OracleDataAdapter();
  523. ad.SelectCommand = command;
  524. ad.Fill((DataTable)result);
  525. }
  526. break;
  527. case "DELETE":
  528. try
  529. {
  530. result=command.ExecuteNonQuery();
  531. }
  532. catch (Exception)
  533. {
  534. command.Connection = new OracleConnection(DBConnectionString);
  535. command.Connection.Open();
  536. result=command.ExecuteNonQuery();
  537. }
  538. break;
  539. case "UPDATE":
  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 "INSERT":
  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. }
  564. command.Dispose();
  565. return result;
  566. }
  567. /// <summary>
  568. /// 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
  569. /// </summary>
  570. /// <param name="SQL"></param>
  571. public void CheckSQL(string SQL)
  572. {
  573. SQL = SQL.Replace("?", ":Param");
  574. command = new OracleCommand(SQL, connection);
  575. command.ExecuteNonQuery();
  576. command.Dispose();
  577. }
  578. public int GetDistinctRowCount(string TableName, string Field)
  579. {
  580. DataTable dt = new DataTable();
  581. string sql = "select distinct count('" + Field + "') from " + TableName;
  582. command = new OracleCommand(sql, connection);
  583. Reconnect(command);
  584. OracleDataAdapter ad = new OracleDataAdapter(command);
  585. try
  586. {
  587. ad.Fill(dt);
  588. }
  589. catch (Exception)
  590. {
  591. connection = new OracleConnection(DBConnectionString);
  592. connection.Open();
  593. command = new OracleCommand(sql, connection);
  594. ad = new OracleDataAdapter();
  595. ad.SelectCommand = command;
  596. ad.Fill(dt);
  597. }
  598. ad.Dispose();
  599. command.Dispose();
  600. return int.Parse(dt.Rows[0][0].ToString());
  601. }
  602. /// <summary>
  603. /// 根据Caller获取流水号
  604. /// </summary>
  605. /// <param name="Caller"></param>
  606. /// <returns></returns>
  607. public string GetSerialNumberByCaller(string Caller)
  608. {
  609. string SerialNumber = getFieldDataByCondition("MaxNumbers", "mn_number", "mn_tablename='" + Caller + "'").ToString();
  610. UpdateByCondition("MaxNumbers", "mn_number=mn_number+1", "mn_tablename='" + Caller + "'");
  611. return SerialNumber;
  612. }
  613. /// <summary>
  614. /// 根据主键ID删除表的数据
  615. /// </summary>
  616. /// <param name="TableName">表名</param>
  617. /// <param name="ID">主键</param>
  618. /// <param name="DeleteID">需要删除主键ID的数组</param>
  619. public void DeleteDataByID(string TableName, string ID, string[] DeleteID)
  620. {
  621. string sql = "delete from " + TableName + " where " + ID + " =:DeleteID";
  622. command = new OracleCommand(sql, connection);
  623. Reconnect(command);
  624. command.ArrayBindCount = DeleteID.Length;
  625. command.Parameters.Add(new OracleParameter("DeleteID", OracleDbType.Long, DeleteID, ParameterDirection.Input));
  626. try
  627. {
  628. command.ExecuteNonQuery();
  629. }
  630. catch (Exception)
  631. {
  632. command.Connection = new OracleConnection(DBConnectionString);
  633. command.Connection.Open();
  634. command.ExecuteNonQuery();
  635. }
  636. command.Dispose();
  637. }
  638. /// <summary>
  639. /// 通过序列的名称获取序列
  640. /// </summary>
  641. /// <param name="SeqName"></param>
  642. /// <returns></returns>
  643. public string GetSEQ(string SeqName)
  644. {
  645. DataTable dt = new DataTable();
  646. dt = (DataTable)ExecuteSql("SELECT " + SeqName + ".NEXTVAL FROM DUAL", "select");
  647. return dt.Rows[0][0].ToString();
  648. }
  649. /// <summary>
  650. /// 通过序列的名称获取序列
  651. /// </summary>
  652. /// <param name="SeqName"></param>
  653. /// <returns></returns>
  654. public string[] GetSEQ(string SeqName, int Num)
  655. {
  656. DataTable dt = new DataTable();
  657. dt = (DataTable)ExecuteSql("select " + SeqName + ".nextval from (select 1 from OQCITEMSAMPLES where rownum<" + (Num + 1) + ")", "select");
  658. string[] SerialNum = new string[dt.Rows.Count];
  659. for (int i = 0; i < dt.Rows.Count; i++)
  660. {
  661. SerialNum[i] = dt.Rows[i][0].ToString();
  662. }
  663. return SerialNum;
  664. }
  665. public void SaveDataTable(DataTable dt, string TableName, string ID, params string[] sql)
  666. {
  667. if (dt == null)
  668. {
  669. return;
  670. }
  671. StringBuilder sb = new StringBuilder();
  672. //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
  673. DataTable data = (DataTable)ExecuteSql("select Column_Name,Data_Type from cols where TABLE_name=upper('" + TableName + "')", "select");
  674. //将所有的字段拼接起来
  675. for (int i = 0; i < data.Rows.Count; i++)
  676. {
  677. sb.Append("#" + data.Rows[i]["Column_Name"].ToString());
  678. }
  679. //移除掉所有不属于该表的列
  680. for (int i = dt.Columns.Count - 1; i >= 0; i--)
  681. {
  682. if (!sb.ToString().Contains(dt.Columns[i].ColumnName.ToUpper()))
  683. {
  684. dt.Columns.RemoveAt(i);
  685. }
  686. }
  687. sb.Clear();
  688. //计算有多少个是新加的行,根据主键为空来进行判断
  689. int NewRowCount = 0;
  690. for (int i = 0; i < dt.Rows.Count; i++)
  691. {
  692. if (dt.Rows[i][ID] == null || dt.Rows[i][ID].ToString() == "")
  693. {
  694. NewRowCount = NewRowCount + 1;
  695. }
  696. }
  697. if (sql.Length > 0)
  698. {
  699. if (NewRowCount > 0)
  700. {
  701. //获取参数的个数
  702. int paramsNum = sql[0].Split(':').Length - 1;
  703. //解析参数的数据
  704. string[] param = GetParamFromSQL(sql[0]);
  705. //新建一个二维数组去
  706. string[][] param_array = new string[paramsNum][];
  707. //实例化每个一维数组
  708. for (int i = 0; i < paramsNum; i++)
  709. {
  710. param_array[i] = new string[NewRowCount];
  711. }
  712. //设置每列参数的索引
  713. int num = 0;
  714. //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
  715. for (int i = dt.Rows.Count - 1; i >= 0; i--)
  716. {
  717. if (dt.Rows[i][ID] == null || dt.Rows[i][ID].ToString() == "")
  718. {
  719. //当为新添加行的时候才去设置参数,设置过后索引+1
  720. for (int j = 0; j < paramsNum; j++)
  721. {
  722. param_array[j][num] = dt.Rows[i][param[j]].ToString();
  723. }
  724. dt.Rows.RemoveAt(i);
  725. num++;
  726. }
  727. }
  728. BatchInsertDataTable(sql[0], param, param_array);
  729. }
  730. }
  731. sb.Clear();
  732. sb.Append("update " + TableName + " set ");
  733. int ColumnCount = dt.Columns.Count;
  734. int RowCount = dt.Rows.Count;
  735. //存数据的参数
  736. List<string[]> Parameter = new List<string[]>();
  737. //存参数名的参数
  738. string[] ParName = new string[ColumnCount];
  739. for (int i = 0; i < ColumnCount; i++)
  740. {
  741. ParName[i] = dt.Columns[i].ColumnName;
  742. if (i == dt.Columns.Count - 1)
  743. sb.Append(dt.Columns[i].ColumnName + "=:" + dt.Columns[i].ColumnName);
  744. else
  745. sb.Append(dt.Columns[i].ColumnName + "=:" + dt.Columns[i].ColumnName + ",");
  746. }
  747. sb.Append(" where " + ID + " =:" + ID);
  748. //先添加参数
  749. Parameter.Add(ParName);
  750. //添加参数的具体内容
  751. for (int i = 0; i < ColumnCount; i++)
  752. {
  753. string[] par = new string[RowCount];
  754. for (int j = 0; j < RowCount; j++)
  755. {
  756. par[j] = dt.Rows[j][i].ToString();
  757. }
  758. Parameter.Add(par);
  759. }
  760. BatchInsert(sb.ToString(), Parameter.ToArray());
  761. }
  762. /// <summary>
  763. /// 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
  764. /// 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
  765. /// </summary>
  766. /// <param name="sql"></param>
  767. /// <param name="names"></param>
  768. public void BatchInsert(string sql, params object[][] names)
  769. {
  770. command = new OracleCommand(sql, connection);
  771. Reconnect(command);
  772. command.ArrayBindCount = names[1].Length;
  773. //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
  774. //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
  775. for (int i = 1; i <= names[0].Length; i++)
  776. {
  777. command.Parameters.Add(new OracleParameter(names[0][i - 1].ToString(), OracleDbType.Varchar2, names[i], ParameterDirection.Input));
  778. }
  779. try
  780. {
  781. command.ExecuteNonQuery();
  782. }
  783. catch (Exception)
  784. {
  785. command.Connection = new OracleConnection(DBConnectionString);
  786. command.Connection.Open();
  787. command.ExecuteNonQuery();
  788. }
  789. command.Dispose();
  790. }
  791. public void BatchInsertDataTable(string sql, string[] param, params object[][] param1)
  792. {
  793. command = new OracleCommand(sql, connection);
  794. Reconnect(command);
  795. command.ArrayBindCount = param1[0].Length;
  796. //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
  797. //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
  798. for (int i = 0; i < param.Length; i++)
  799. {
  800. command.Parameters.Add(new OracleParameter(param[i].ToString(), OracleDbType.Varchar2, param1[i], ParameterDirection.Input));
  801. }
  802. try
  803. {
  804. command.ExecuteNonQuery();
  805. }
  806. catch (Exception)
  807. {
  808. command.Connection = new OracleConnection(DBConnectionString);
  809. command.Connection.Open();
  810. command.ExecuteNonQuery();
  811. }
  812. command.Dispose();
  813. }
  814. /// <summary>
  815. /// 取Configs表中的配置,进行该客户是否执行某个操作
  816. /// </summary>
  817. /// <param name="Code"></param>
  818. /// <param name="Caller"></param>
  819. /// <returns></returns>
  820. public object GetConfig(string Code, string Caller)
  821. {
  822. DataTable dt = new DataTable();
  823. string sql = "select Data from configs where code='" + Code + "' and caller='" + Caller + "'";
  824. dt = (DataTable)ExecuteSql(sql, "select");
  825. if (dt.Rows.Count == 0)
  826. {
  827. return "";
  828. }
  829. else
  830. {
  831. return dt.Rows[0]["Data"];
  832. }
  833. }
  834. //将数据类型的列类型转换为DataTable
  835. public DataTable DataTypeColumnToDataTable(DataTable dt)
  836. {
  837. DataTable dt1 = new DataTable();
  838. dt1.Rows.Add();
  839. foreach (DataRow dr in dt.Rows)
  840. {
  841. dt1.Columns.Add(dr[0].ToString());
  842. int index = dt.Rows.IndexOf(dr);
  843. if (dr[1].ToString() == "NUMBER")
  844. {
  845. dt1.Rows[0][index] = 0;
  846. }
  847. if (dr[1].ToString() == "VARCHAR2")
  848. {
  849. dt1.Rows[0][index] = "这是一段文字";
  850. }
  851. if (dr[1].ToString() == "DATE")
  852. {
  853. dt1.Rows[0][index] = DateTime.Now.ToString("yyyy-MM-dd");
  854. }
  855. if (dr[1].ToString() == "FLOAT")
  856. {
  857. dt1.Rows[0][index] = 1.0;
  858. }
  859. if (dr[1].ToString() == "CLOB")
  860. {
  861. dt1.Rows[0][index] = "一段长文字";
  862. }
  863. }
  864. return dt1;
  865. }
  866. /// <summary>
  867. /// 通过条件更新
  868. /// </summary>
  869. /// <param name="TableName"></param>
  870. /// <param name="update"></param>
  871. /// <param name="condition"></param>
  872. public string UpdateByCondition(string TableName, string update, string condition)
  873. {
  874. string sql = "update " + TableName + " set " + update + " where " + condition;
  875. command = new OracleCommand(sql, connection);
  876. Reconnect(command);
  877. try
  878. {
  879. command.ExecuteNonQuery();
  880. }
  881. catch (Exception)
  882. {
  883. command.Connection = new OracleConnection(DBConnectionString);
  884. command.Connection.Open();
  885. command.ExecuteNonQuery();
  886. }
  887. command.Dispose();
  888. return sql;
  889. }
  890. /// <summary>
  891. /// 调用存储过程
  892. /// </summary>
  893. /// <param name="ProcedureName"></param>
  894. /// <param name="param"></param>
  895. public void CallProcedure(string ProcedureName, ref string[] param)
  896. {
  897. command = new OracleCommand(ProcedureName);
  898. command.Connection = connection;
  899. Reconnect(command);
  900. command.CommandText = ProcedureName;
  901. command.CommandType = CommandType.StoredProcedure;
  902. for (int i = 0; i < param.Length; i++)
  903. command.Parameters.Add(new OracleParameter(param[i].ToString(), OracleDbType.Varchar2, 200, param[i], ParameterDirection.InputOutput));
  904. try
  905. {
  906. command.ExecuteNonQuery();
  907. }
  908. catch (Exception)
  909. {
  910. command.Connection = new OracleConnection(DBConnectionString);
  911. command.Connection.Open();
  912. command.ExecuteNonQuery();
  913. }
  914. for (int i = 0; i < command.Parameters.Count; i++)
  915. param[i] = command.Parameters[i].Value.ToString();
  916. command.Dispose();
  917. }
  918. /// <summary>
  919. /// 出现异常进行回滚的执行方法
  920. /// </summary>
  921. /// <param name="SQL"></param>
  922. public void ExecuteSQLTran(params string[] SQL)
  923. {
  924. OracleTransaction tx = connection.BeginTransaction();
  925. command = new OracleCommand();
  926. command.Connection = connection;
  927. command.Transaction = tx;
  928. try
  929. {
  930. foreach (string sql in SQL)
  931. {
  932. if (!String.IsNullOrEmpty(sql))
  933. {
  934. command.CommandText = sql;
  935. try
  936. {
  937. command.ExecuteNonQuery();
  938. }
  939. catch (Exception)
  940. {
  941. command.Connection = new OracleConnection(DBConnectionString);
  942. command.Connection.Open();
  943. command.ExecuteNonQuery();
  944. }
  945. }
  946. }
  947. tx.Commit();
  948. }
  949. catch (System.Data.OracleClient.OracleException E)
  950. {
  951. tx.Rollback();
  952. throw new Exception(E.Message);
  953. }
  954. command.Dispose();
  955. }
  956. /// <summary>
  957. /// 用于将string 的数组转换成SQL的查询内容
  958. /// </summary>
  959. /// <param name="Fields"></param>
  960. /// <returns></returns>
  961. private string AddField(string[] Fields)
  962. {
  963. string sql = " ";
  964. foreach (string field in Fields)
  965. {
  966. sql += field + ",";
  967. }
  968. return sql.Substring(0, sql.Length - 1);
  969. }
  970. /// <summary>
  971. /// 通过查询的内容获取到字段的描述
  972. /// </summary>
  973. /// <param name="field"></param>
  974. /// <returns></returns>
  975. private static string[] GetCaptionFromField(string field)
  976. {
  977. string[] caption = field.Split(',');
  978. for (int i = 0; i < caption.Length; i++)
  979. {
  980. caption[i] = caption[i].Substring(0, caption[i].LastIndexOf("as")).Trim();
  981. }
  982. return caption;
  983. }
  984. /// <summary>
  985. /// 通过查询的语句获取查询的字段
  986. /// </summary>
  987. /// <param name="field"></param>
  988. /// <returns></returns>
  989. private static string[] GetField(string field)
  990. {
  991. string[] fields = field.Split(',');
  992. for (int i = 0; i < fields.Length; i++)
  993. {
  994. fields[i] = fields[i].Substring(fields[i].LastIndexOf("as") + 2, fields[i].Length - fields[i].LastIndexOf("as") - 2).Trim();
  995. }
  996. return fields;
  997. }
  998. public object GetLabelParam(string sql)
  999. {
  1000. DataTable dt = new DataTable();
  1001. command = new OracleCommand(sql, connection);
  1002. Reconnect(command);
  1003. OracleDataAdapter ad = new OracleDataAdapter();
  1004. ad.SelectCommand = command;
  1005. try
  1006. {
  1007. ad.Fill(dt);
  1008. }
  1009. catch (Exception)
  1010. {
  1011. connection = new OracleConnection(DBConnectionString);
  1012. connection.Open();
  1013. command = new OracleCommand(sql, connection);
  1014. ad = new OracleDataAdapter();
  1015. ad.SelectCommand = command;
  1016. ad.Fill(dt);
  1017. }
  1018. if (dt.Rows.Count > 0)
  1019. {
  1020. ad.Dispose();
  1021. command.Dispose();
  1022. return dt.Rows[0][0];
  1023. }
  1024. else
  1025. {
  1026. command.Dispose();
  1027. return "";
  1028. }
  1029. }
  1030. public static string[] GetParamFromSQL(string SQL)
  1031. {
  1032. string[] par = SQL.Split(':');
  1033. //用来存参数的数组
  1034. StringBuilder[] addpar = new StringBuilder[par.Length - 1];
  1035. string[] param = new string[par.Length - 1];
  1036. for (int i = 0; i < par.Length - 1; i++)
  1037. {
  1038. //新建一个char类型的数组用来存储每个字节的变量
  1039. char[] c = par[i + 1].ToCharArray();
  1040. addpar[i] = new StringBuilder();
  1041. for (int j = 0; j < c.Length; j++)
  1042. {
  1043. if (c[j] != ' ' && c[j] != ',' && c[j] != ')')
  1044. {
  1045. addpar[i].Append(c[j]);
  1046. }
  1047. else
  1048. {
  1049. break;
  1050. }
  1051. }
  1052. }
  1053. for (int i = 0; i < par.Length - 1; i++)
  1054. {
  1055. param[i] = addpar[i].ToString();
  1056. }
  1057. return param;
  1058. }
  1059. public void Dispose()
  1060. {
  1061. }
  1062. private void Reconnect(OracleCommand cmd)
  1063. {
  1064. if (cmd.Connection.State == ConnectionState.Closed)
  1065. {
  1066. cmd.Connection.Open();
  1067. LogManager.DoLog("超时重连");
  1068. }
  1069. }
  1070. }
  1071. }