DataHelper.cs 43 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700701702703704705706707708709710711712713714715716717718719720721722723724725726727728729730731732733734735736737738739740741742743744745746747748749750751752753754755756757758759760761762763764765766767768769770771772773774775776777778779780781782783784785786787788789790791792793794795796797798799800801802803804805806807808809810811812813814815816817818819820821822823824825826827828829830831832833834835836837838839840841842843844845846847848849850851852853854855856857858859860861862863864865866867868869870871872873874875876877878879880881882883884885886887888889890891892893894895896897898899900901902903904905906907908909910911912913914915916917918919920921922923924925926927928929930931932933934935936937938939940941942943944945946947948949950951952953954955956957958959960961962963964965966967968969970971972973974975976977978979980981982983984985986987988989990991992993994995996997998999100010011002100310041005100610071008100910101011101210131014101510161017101810191020102110221023102410251026102710281029103010311032103310341035103610371038103910401041104210431044104510461047104810491050105110521053105410551056105710581059106010611062106310641065106610671068106910701071
  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. ad.Fill(dt);
  62. ad.Dispose();
  63. command.Dispose();
  64. if (dt.Rows.Count > 0)
  65. {
  66. return dt.Rows[0][0];
  67. }
  68. else
  69. {
  70. return "";
  71. }
  72. }
  73. /// <summary>
  74. /// 执行打印的SQL
  75. /// </summary>
  76. /// <param name="SQL">SQL语句</param>
  77. /// <param name="Parameters">动态添加的参数,主要根据条码枪扫描获取</param>
  78. /// <returns></returns>
  79. public object ExecutePrintSQL(string SQL, params string[] Parameters)
  80. {
  81. //按照?拆分数据,然后以:Param替换问号,同时添加参数
  82. string[] Param = SQL.Split('?');
  83. int ParamNum = Param.Length - 1;
  84. //条码打印必然存在需要维护的参数
  85. if (ParamNum > 0)
  86. {
  87. StringBuilder sb = new StringBuilder();
  88. for (int i = 0; i < ParamNum; i++)
  89. {
  90. sb.Append(Param[i] + ":Param" + i);
  91. }
  92. command = new OracleCommand(sb.ToString(), connection);
  93. for (int i = 0; i < ParamNum; i++)
  94. {
  95. command.Parameters.Add("Param" + i, OracleDbType.Varchar2, Parameters[i], ParameterDirection.Input);
  96. }
  97. OracleDataAdapter ad = new OracleDataAdapter(command);
  98. DataTable dt = new DataTable();
  99. ad.Fill(dt);
  100. ad.Dispose();
  101. command.Dispose();
  102. return dt;
  103. }
  104. return "参数错误,请检查SQL语句";
  105. }
  106. /// <summary>
  107. /// 获取指定表的记录的条数 ,带条件
  108. /// </summary>
  109. /// <returns></returns>
  110. public int getRowCount(string TableName, string Condition)
  111. {
  112. DataTable dt = new DataTable();
  113. string sql = "select count(1) from " + TableName + " where " + Condition;
  114. command = new OracleCommand(sql, connection);
  115. Reconnect(command);
  116. OracleDataAdapter ad = new OracleDataAdapter(command);
  117. ad.Fill(dt);
  118. ad.Dispose();
  119. command.Dispose();
  120. return int.Parse(dt.Rows[0][0].ToString());
  121. }
  122. /// <summary>
  123. /// 获取指定表的记录的条数 ,不带条件
  124. /// </summary>
  125. /// <param name="TableName"></param>
  126. /// <returns></returns>
  127. public int getRowCount(string TableName)
  128. {
  129. DataTable dt = new DataTable();
  130. string sql = "select count(1) from " + TableName;
  131. command = new OracleCommand(sql, connection);
  132. Reconnect(command);
  133. OracleDataAdapter ad = new OracleDataAdapter(command);
  134. ad.Fill(dt);
  135. ad.Dispose();
  136. command.Dispose();
  137. return int.Parse(dt.Rows[0][0].ToString());
  138. }
  139. /// <summary>
  140. /// 通过表名和获取单行的记录
  141. /// </summary>
  142. public DataTable getFieldsDataByCondition(string TableName, string[] Fields, string Condition)
  143. {
  144. DataTable dt = new DataTable();
  145. string sql = "select ";
  146. sql += AddField(Fields);
  147. sql += " from " + TableName + " where " + Condition + " and rownum=1";
  148. command = new OracleCommand(sql, connection);
  149. Reconnect(command);
  150. OracleDataAdapter ad = new OracleDataAdapter(command);
  151. ad.Fill(dt);
  152. ad.Dispose();
  153. command.Dispose();
  154. return dt;
  155. }
  156. /// <summary>
  157. /// 按分页获取数据
  158. /// </summary>
  159. /// <param name="TableName">表名</param>
  160. /// <param name="Fields">查询字段</param>
  161. /// <param name="CurrentPage">当前页面</param>
  162. /// <param name="PageSize">页面展示条数</param>
  163. /// <param name="Caller"></param>
  164. /// <returns></returns>
  165. // SELECT * FROM (SELECT A.* FROM (SELECT* FROM datalist) A WHERE ROWNUM <= 50) WHERE ROWNUM >= 21
  166. public DataTable getFieldsDatasByPageing(string TableName, string Fields, int CurrentPage, int PageSize, string Caller, params string[] condition)
  167. {
  168. DataTable dt = new DataTable();
  169. StringBuilder sql = new StringBuilder();
  170. //先查询出配置出去的列
  171. //获取查询的列
  172. string[] caption = GetCaptionFromField(Fields);
  173. //获取对应列的描述
  174. string[] field = GetField(Fields);
  175. sql.Append(" select * from (select RowNum RN, A.* from (select ");
  176. sql.Append(AddField(caption));
  177. if (condition.Length > 0)
  178. {
  179. if (condition[0] != null && condition[0].Trim() != "")
  180. sql.Append(" from " + TableName + " where " + condition[0] + " ) A where ROWNUM <=" + CurrentPage * PageSize + ") where RN>" + (CurrentPage - 1) * PageSize);
  181. else
  182. sql.Append(" from " + TableName + ") A where ROWNUM <= " + CurrentPage * PageSize + ") where RN> " + (CurrentPage - 1) * PageSize);
  183. }
  184. command = new OracleCommand(sql.ToString(), connection);
  185. Reconnect(command);
  186. OracleDataAdapter ad = new OracleDataAdapter(command);
  187. ad.Fill(dt);
  188. ad.Dispose();
  189. command.Dispose();
  190. dt.Columns.RemoveAt(0);
  191. foreach (DataColumn dc in dt.Columns)
  192. {
  193. dc.ColumnName = field[dt.Columns.IndexOf(dc)];
  194. dc.Caption = caption[dt.Columns.IndexOf(dc)];
  195. }
  196. return dt;
  197. }
  198. /// <summary>
  199. /// 通过表名,字段和条件获取DataTable类型的数据
  200. /// </summary>
  201. public DataTable getFieldsDatasByCondition(string TableName, string[] Fields, string Condition)
  202. {
  203. DataTable dt = new DataTable();
  204. string sql = "select ";
  205. sql += AddField(Fields);
  206. sql += " from " + TableName + " where " + Condition;
  207. command = new OracleCommand(sql, connection);
  208. Reconnect(command);
  209. OracleDataAdapter ad = new OracleDataAdapter(command);
  210. ad.Fill(dt);
  211. ad.Dispose();
  212. command.Dispose();
  213. return dt;
  214. }
  215. /// <summary>
  216. /// 通过表名,字段获取DataTable类型的数据
  217. /// </summary>
  218. public DataTable getFieldsDatas(string TableName, string Fields)
  219. {
  220. DataTable dt = new DataTable();
  221. string sql = "select ";
  222. sql += Fields;
  223. sql += " from " + TableName;
  224. command = new OracleCommand(sql, connection);
  225. Reconnect(command);
  226. OracleDataAdapter ad = new OracleDataAdapter(command);
  227. ad.SelectCommand = command;
  228. ad.Fill(dt);
  229. foreach (DataColumn dc in dt.Columns)
  230. {
  231. dc.Caption = "测试测试";
  232. }
  233. ad.Dispose();
  234. command.Dispose();
  235. return dt;
  236. }
  237. /// <summary>
  238. /// 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
  239. /// </summary>
  240. /// <param name="DataTable"></param>
  241. /// <param name="TableName"></param>
  242. /// <param name="Condition"></param>
  243. public void UpDateTableByCondition(DataTable DataTable, string TableName, string PrimaryKey, params string[] sql)
  244. {
  245. if (DataTable == null)
  246. {
  247. return;
  248. }
  249. StringBuilder sb = new StringBuilder();
  250. //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
  251. DataTable data = (DataTable)ExecuteSql("select Column_Name,Data_Type from cols where TABLE_name=upper('" + TableName + "')", "select");
  252. //将所有的字段拼接起来
  253. for (int i = 0; i < data.Rows.Count; i++)
  254. {
  255. sb.Append("#" + data.Rows[i]["Column_Name"].ToString());
  256. }
  257. //移除掉所有不属于该表的列
  258. for (int i = DataTable.Columns.Count - 1; i >= 0; i--)
  259. {
  260. if (!sb.ToString().Contains(DataTable.Columns[i].ColumnName.ToUpper()))
  261. {
  262. DataTable.Columns.RemoveAt(i);
  263. }
  264. }
  265. sb.Clear();
  266. //计算有多少个是新加的行,根据主键为空来进行判断
  267. int NewRowCount = 0;
  268. for (int i = 0; i < DataTable.Rows.Count; i++)
  269. {
  270. if (DataTable.Rows[i][PrimaryKey] == null || DataTable.Rows[i][PrimaryKey].ToString() == "")
  271. {
  272. NewRowCount = NewRowCount + 1;
  273. }
  274. }
  275. if (sql.Length > 0)
  276. {
  277. if (NewRowCount > 0)
  278. {
  279. //获取参数的个数
  280. int paramsNum = sql[0].Split(':').Length - 1;
  281. //解析参数的数据
  282. string[] param = GetParamFromSQL(sql[0]);
  283. //新建一个二维数组去
  284. string[][] param_array = new string[paramsNum][];
  285. //实例化每个一维数组
  286. for (int i = 0; i < paramsNum; i++)
  287. {
  288. param_array[i] = new string[NewRowCount];
  289. }
  290. //设置每列参数的索引
  291. int num = 0;
  292. //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
  293. for (int i = DataTable.Rows.Count - 1; i >= 0; i--)
  294. {
  295. if (DataTable.Rows[i][PrimaryKey] == null || DataTable.Rows[i][PrimaryKey].ToString() == "")
  296. {
  297. //当为新添加行的时候才去设置参数,设置过后索引+1
  298. for (int j = 0; j < paramsNum; j++)
  299. {
  300. param_array[j][num] = DataTable.Rows[i][param[j]].ToString();
  301. }
  302. DataTable.Rows.RemoveAt(i);
  303. num++;
  304. }
  305. }
  306. BatchInsertDataTable(sql[0], param, param_array);
  307. }
  308. }
  309. //不是新增行的启用更新的方法
  310. sb.Append("update " + TableName + " set ");
  311. //拼接语句,特殊处理日期
  312. foreach (DataColumn dc in DataTable.Columns)
  313. {
  314. if (!dc.DataType.ToString().Equals("System.DateTime"))
  315. {
  316. sb.Append(dc.Caption + "=:" + dc.Caption + ",");
  317. }
  318. else
  319. {
  320. sb.Append(dc.Caption + "=:" + dc.Caption + ",");
  321. }
  322. }
  323. sb.Remove(sb.Length - 1, 1);
  324. sb.Append(" where " + PrimaryKey + "=:" + PrimaryKey);
  325. command = new OracleCommand(sb.ToString(), connection);
  326. OracleDataAdapter ad = new OracleDataAdapter(command);
  327. // 参数的长度是DataTable的行数决定的
  328. command.ArrayBindCount = DataTable.Rows.Count;
  329. //默认全部是Varchar2类型的
  330. OracleDbType ob = OracleDbType.Varchar2;
  331. for (int i = 0; i < DataTable.Columns.Count; i++)
  332. {
  333. object[] param = new object[DataTable.Rows.Count];
  334. for (int j = 0; j < DataTable.Rows.Count; j++)
  335. {
  336. DateTime dt = DateTime.Now;
  337. if (DateTime.TryParse(DataTable.Rows[j][i].ToString(), out dt))
  338. {
  339. param[j] = dt;
  340. ob = OracleDbType.Date;
  341. }
  342. else
  343. {
  344. ob = OracleDbType.Varchar2;
  345. param[j] = DataTable.Rows[j][i];
  346. }
  347. }
  348. //添加批量更新的参数
  349. command.Parameters.Add(new OracleParameter(DataTable.Columns[i].Caption, ob, param, ParameterDirection.Input));
  350. }
  351. ad.UpdateCommand = command;
  352. ad.Update(DataTable);
  353. ad.Dispose();
  354. command.Dispose();
  355. }
  356. /// <summary>
  357. /// 获取DbFind的数据的DataTable的结构
  358. /// </summary>
  359. /// <param name="field"></param>
  360. /// <param name="caller"></param>
  361. /// <returns></returns>
  362. public DataTable GetDbFindDataTable(string field, string caller)
  363. {
  364. string sql = "select * from dbfindsetui where ds_caller='" + caller + "' and ds_whichui='" + field + "'";
  365. DataTable dt = (DataTable)ExecuteSql(sql, "select");
  366. if (dt.Rows.Count != 0)
  367. {
  368. //通过#号分割字段
  369. string[] dbfield = dt.Rows[0]["ds_findtoui"].ToString().Split('#');
  370. string[] cnfield = dt.Rows[0]["ds_dbcaption"].ToString().Split('#');
  371. //获取查询要查询的Table
  372. string dbtable = dt.Rows[0]["ds_tables"].ToString();
  373. //拼接查询的字段
  374. for (int i = 0; i < dbfield.Length; i++)
  375. {
  376. dbfield[i] = dbfield[i].Split(',')[0];
  377. }
  378. //新建一个空的DataTable
  379. DataTable dt1 = new DataTable();
  380. //往空的DataTable添加结构,ColumnName是中文,Caption是实际的字段名称
  381. for (int i = 0; i < cnfield.Length; i++)
  382. {
  383. dt1.Columns.Add(cnfield[i]);
  384. dt1.Columns[i].Caption = dbfield[i];
  385. }
  386. //返回一个带有结构的空的DataTable
  387. //DbFind.BindTable1 = dbtable;
  388. return dt1;
  389. }
  390. else
  391. {
  392. return null;
  393. }
  394. }
  395. /// <summary>
  396. /// 获取配置列表中的数据,支持DaatList,Form,DetailGrid
  397. /// </summary>
  398. /// <param name="Caller"></param>
  399. /// <param name="Type"></param>
  400. /// <param name="condition"></param>
  401. /// <returns></returns>
  402. public DataTable GetConfigureData(string Caller, string Type, string condition)
  403. {
  404. DataTable dt = new DataTable();
  405. //用于拼接SQL语句
  406. StringBuilder Sql = new StringBuilder();
  407. //用于设置不同Type时设置对应表的字段
  408. string getField = "";
  409. string getCaption = "";
  410. string getTable = "";
  411. switch (Type.ToUpper())
  412. {
  413. case "DATALIST":
  414. getField = "dld_field"; getCaption = "dld_caption"; getTable = "dld_table";
  415. Sql.Append("select * from datalistdetail where dld_caller='" + Caller + "'");
  416. break;
  417. case "FORM":
  418. getField = "fd_field"; getCaption = "fd_caption"; getTable = "fd_table";
  419. Sql.Append("select * from formdetail where fd_foid=( select fo_id from form where fo_caller='" + Caller + "')");
  420. break;
  421. case "DETAILGRID":
  422. getField = "dg_field"; getCaption = "dg_caption"; getTable = "dg_table";
  423. Sql.Append("select * from detailgrid where dg_caller='" + Caller + "'");
  424. break;
  425. }
  426. command = new OracleCommand(Sql.ToString(), connection);
  427. OracleDataAdapter ad = new OracleDataAdapter(command);
  428. ad.Fill(dt);
  429. //清除掉之前的内容重新拼接
  430. Sql.Clear();
  431. Sql.Append("select ");
  432. string[] field = new string[dt.Rows.Count];
  433. string[] caption = new string[dt.Rows.Count];
  434. DataTable dt1 = new DataTable();
  435. //记录描述和字段名称
  436. foreach (DataRow dr in dt.Rows)
  437. {
  438. field[dt.Rows.IndexOf(dr)] = dr[getCaption].ToString();
  439. caption[dt.Rows.IndexOf(dr)] = dr[getField].ToString();
  440. Sql.Append(dr[getField] + ",");
  441. }
  442. //调用substring是为了去除之前拼接多出来的一个逗号
  443. string sql = Sql.Remove(Sql.Length - 1, 1).ToString() + " from " + dt.Rows[0][getTable] + " where " + condition;
  444. //调用一个新的构造DataTable用来存放返回的数据
  445. dt1 = (DataTable)ExecuteSql(sql, "select");
  446. //给DataTable加上列名和描述,列名是中文字段,描述是数据库实际的字段名称
  447. for (int i = 0; i < field.Length; i++)
  448. {
  449. dt1.Columns[i].ColumnName = field[i];
  450. dt1.Columns[i].Caption = caption[i];
  451. }
  452. //返回的第一条数据是SQL,后面的是实际的列名
  453. ad.Dispose();
  454. command.Dispose();
  455. return dt1;
  456. }
  457. /// <summary>
  458. /// 查询配置的字段,Type是查询DataList,Form还是DetailGrid
  459. /// </summary>
  460. /// <param name="Caller"></param>
  461. /// <param name="Type"></param>
  462. /// <returns></returns>
  463. public DataTable GetConfigureData(string Caller, string Type)
  464. {
  465. DataTable dt = new DataTable();
  466. //用于拼接SQL语句
  467. StringBuilder Sql = new StringBuilder();
  468. //用于设置不同Type时设置对应表的字段
  469. string getField = "";
  470. string getCaption = "";
  471. string getTable = "";
  472. switch (Type.ToUpper())
  473. {
  474. case "DATALIST":
  475. getField = "dld_field"; getCaption = "dld_caption"; getTable = "dld_table";
  476. Sql.Append("select * from datalistdetail where dld_caller='" + Caller + "'");
  477. break;
  478. case "FORM":
  479. getField = "fd_field"; getCaption = "fd_caption"; getTable = "fd_table";
  480. Sql.Append("select * from formdetail where fd_foid=( select fo_id from form where fo_caller='" + Caller + "')");
  481. break;
  482. case "DETAILGRID":
  483. getField = "dg_field"; getCaption = "dg_caption"; getTable = "dg_table";
  484. Sql.Append("select * from detailgrid where dg_caller='" + Caller + "'");
  485. break;
  486. }
  487. command = new OracleCommand(Sql.ToString(), connection);
  488. OracleDataAdapter ad = new OracleDataAdapter(command);
  489. ad.Fill(dt);
  490. //清除掉之前的内容重新拼接
  491. Sql.Clear();
  492. Sql.Append("select ");
  493. //用于记录实际的列名,+1的目的是为了存放SQL
  494. string[] field = new string[dt.Rows.Count];
  495. string[] caption = new string[dt.Rows.Count];
  496. DataTable dt1 = new DataTable();
  497. foreach (DataRow dr in dt.Rows)
  498. {
  499. field[dt.Rows.IndexOf(dr)] = dr[getCaption].ToString();
  500. caption[dt.Rows.IndexOf(dr)] = dr[getField].ToString();
  501. Sql.Append(dr[getField] + ",");
  502. }
  503. string sql = Sql.Remove(Sql.Length - 1, 1).ToString() + " from " + dt.Rows[0][getTable];
  504. dt1 = (DataTable)ExecuteSql(sql, "select");
  505. //设置DataTable的列名和描述
  506. for (int i = 0; i < field.Length; i++)
  507. {
  508. dt1.Columns[i].ColumnName = field[i];
  509. dt1.Columns[i].Caption = caption[i];
  510. }
  511. ad.Dispose();
  512. command.Dispose();
  513. return dt1;
  514. }
  515. /// <summary>
  516. /// 检测内容是否存在
  517. /// </summary>
  518. /// <param name="TableName"></param>
  519. /// <param name="Condition"></param>
  520. /// <returns></returns>
  521. public bool CheckExist(string TableName, string Condition)
  522. {
  523. string sql = "select count(1) from " + TableName + " where " + Condition;
  524. command = new OracleCommand(sql, connection);
  525. Reconnect(command);
  526. OracleDataAdapter ad = new OracleDataAdapter(command);
  527. DataTable dt = new DataTable();
  528. ad.Fill(dt);
  529. ad.Dispose();
  530. command.Dispose();
  531. return int.Parse(dt.Rows[0][0].ToString()) > 0;
  532. }
  533. /// <summary>
  534. /// 直接执行SQL,同时传入SQL的类型
  535. /// </summary>
  536. /// <param name="SQL"></param>
  537. /// <param name="Type"></param>
  538. /// <returns></returns>
  539. public object ExecuteSql(string SQL, string Type, params object[] names)
  540. {
  541. object result = null;
  542. command = new OracleCommand(SQL, connection);
  543. Reconnect(command);
  544. //用来拼接参数的
  545. if (names.Length > 0)
  546. {
  547. string[] par = SQL.Split(':');
  548. //用来存参数的数组
  549. StringBuilder[] addpar = new StringBuilder[par.Length - 1];
  550. for (int i = 0; i < par.Length - 1; i++)
  551. {
  552. //新建一个char类型的数组用来存储每个字节的变量
  553. char[] c = par[i + 1].ToCharArray();
  554. addpar[i] = new StringBuilder();
  555. for (int j = 0; j < c.Length; j++)
  556. {
  557. if (c[j] != ' ' && c[j] != ',')
  558. {
  559. addpar[i].Append(c[j]);
  560. }
  561. else
  562. {
  563. break;
  564. }
  565. }
  566. }
  567. for (int i = 0; i < addpar.Length; i++)
  568. command.Parameters.Add(new OracleParameter(addpar[i].ToString(), OracleDbType.Varchar2, names[i], ParameterDirection.Input));
  569. }
  570. switch (Type.ToUpper())
  571. {
  572. case "SELECT":
  573. result = new DataTable();
  574. try
  575. {
  576. OracleDataAdapter ad = new OracleDataAdapter(command);
  577. ad.Fill((DataTable)result);
  578. ad.Dispose();
  579. //成功执行后将重复连接数置为0
  580. ReconnectTime = 0;
  581. }
  582. catch (Exception)
  583. {
  584. if (ReconnectTime == 0)
  585. {
  586. //重置的数据库链接后只执行一次
  587. ReconnectTime = ReconnectTime + 1;
  588. connection = new OracleConnection(DBConnectionString);
  589. result = ExecuteSql(SQL, Type, names);
  590. }
  591. }
  592. break;
  593. case "DELETE":
  594. result = command.ExecuteNonQuery();
  595. break;
  596. case "UPDATE":
  597. result = command.ExecuteNonQuery();
  598. break;
  599. case "INSERT":
  600. result = command.ExecuteNonQuery();
  601. break;
  602. }
  603. command.Dispose();
  604. return result;
  605. }
  606. /// <summary>
  607. /// 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
  608. /// </summary>
  609. /// <param name="SQL"></param>
  610. public void CheckSQL(string SQL)
  611. {
  612. SQL = SQL.Replace("?", ":Param");
  613. command = new OracleCommand(SQL, connection);
  614. command.ExecuteNonQuery();
  615. command.Dispose();
  616. }
  617. public int GetDistinctRowCount(string TableName, string Field)
  618. {
  619. DataTable dt = new DataTable();
  620. string sql = "select distinct count('" + Field + "') from " + TableName;
  621. command = new OracleCommand(sql, connection);
  622. Reconnect(command);
  623. OracleDataAdapter ad = new OracleDataAdapter(command);
  624. ad.Fill(dt);
  625. ad.Dispose();
  626. command.Dispose();
  627. return int.Parse(dt.Rows[0][0].ToString());
  628. }
  629. /// <summary>
  630. /// 根据Caller获取流水号
  631. /// </summary>
  632. /// <param name="Caller"></param>
  633. /// <returns></returns>
  634. public string GetSerialNumberByCaller(string Caller)
  635. {
  636. string SerialNumber = getFieldDataByCondition("MaxNumbers", "mn_number", "mn_tablename='" + Caller + "'").ToString();
  637. UpdateByCondition("MaxNumbers", "mn_number=mn_number+1", "mn_tablename='" + Caller + "'");
  638. return SerialNumber;
  639. }
  640. /// <summary>
  641. /// 根据主键ID删除表的数据
  642. /// </summary>
  643. /// <param name="TableName">表名</param>
  644. /// <param name="ID">主键</param>
  645. /// <param name="DeleteID">需要删除主键ID的数组</param>
  646. public void DeleteDataByID(string TableName, string ID, string[] DeleteID)
  647. {
  648. string sql = "delete from " + TableName + " where " + ID + " =:DeleteID";
  649. command = new OracleCommand(sql, connection);
  650. Reconnect(command);
  651. command.ArrayBindCount = DeleteID.Length;
  652. command.Parameters.Add(new OracleParameter("DeleteID", OracleDbType.Long, DeleteID, ParameterDirection.Input));
  653. command.ExecuteNonQuery();
  654. command.Dispose();
  655. }
  656. /// <summary>
  657. /// 通过序列的名称获取序列
  658. /// </summary>
  659. /// <param name="SeqName"></param>
  660. /// <returns></returns>
  661. public string GetSEQ(string SeqName)
  662. {
  663. DataTable dt = new DataTable();
  664. dt = (DataTable)ExecuteSql("SELECT " + SeqName + ".NEXTVAL FROM DUAL", "select");
  665. return dt.Rows[0][0].ToString();
  666. }
  667. public void SaveDataTable(DataTable dt, string TableName, string ID, params string[] sql)
  668. {
  669. if (dt == null)
  670. {
  671. return;
  672. }
  673. StringBuilder sb = new StringBuilder();
  674. //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
  675. DataTable data = (DataTable)ExecuteSql("select Column_Name,Data_Type from cols where TABLE_name=upper('" + TableName + "')", "select");
  676. //将所有的字段拼接起来
  677. for (int i = 0; i < data.Rows.Count; i++)
  678. {
  679. sb.Append("#" + data.Rows[i]["Column_Name"].ToString());
  680. }
  681. //移除掉所有不属于该表的列
  682. for (int i = dt.Columns.Count - 1; i >= 0; i--)
  683. {
  684. if (!sb.ToString().Contains(dt.Columns[i].ColumnName.ToUpper()))
  685. {
  686. dt.Columns.RemoveAt(i);
  687. }
  688. }
  689. sb.Clear();
  690. //计算有多少个是新加的行,根据主键为空来进行判断
  691. int NewRowCount = 0;
  692. for (int i = 0; i < dt.Rows.Count; i++)
  693. {
  694. if (dt.Rows[i][ID] == null || dt.Rows[i][ID].ToString() == "")
  695. {
  696. NewRowCount = NewRowCount + 1;
  697. }
  698. }
  699. if (sql.Length > 0)
  700. {
  701. if (NewRowCount > 0)
  702. {
  703. //获取参数的个数
  704. int paramsNum = sql[0].Split(':').Length - 1;
  705. //解析参数的数据
  706. string[] param = GetParamFromSQL(sql[0]);
  707. //新建一个二维数组去
  708. string[][] param_array = new string[paramsNum][];
  709. //实例化每个一维数组
  710. for (int i = 0; i < paramsNum; i++)
  711. {
  712. param_array[i] = new string[NewRowCount];
  713. }
  714. //设置每列参数的索引
  715. int num = 0;
  716. //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
  717. for (int i = dt.Rows.Count - 1; i >= 0; i--)
  718. {
  719. if (dt.Rows[i][ID] == null || dt.Rows[i][ID].ToString() == "")
  720. {
  721. //当为新添加行的时候才去设置参数,设置过后索引+1
  722. for (int j = 0; j < paramsNum; j++)
  723. {
  724. param_array[j][num] = dt.Rows[i][param[j]].ToString();
  725. }
  726. dt.Rows.RemoveAt(i);
  727. num++;
  728. }
  729. }
  730. BatchInsertDataTable(sql[0], param, param_array);
  731. }
  732. }
  733. sb.Clear();
  734. sb.Append("update " + TableName + " set ");
  735. int ColumnCount = dt.Columns.Count;
  736. int RowCount = dt.Rows.Count;
  737. //存数据的参数
  738. List<string[]> Parameter = new List<string[]>();
  739. //存参数名的参数
  740. string[] ParName = new string[ColumnCount];
  741. for (int i = 0; i < ColumnCount; i++)
  742. {
  743. ParName[i] = dt.Columns[i].ColumnName;
  744. if (i == dt.Columns.Count - 1)
  745. sb.Append(dt.Columns[i].ColumnName + "=:" + dt.Columns[i].ColumnName);
  746. else
  747. sb.Append(dt.Columns[i].ColumnName + "=:" + dt.Columns[i].ColumnName + ",");
  748. }
  749. sb.Append(" where " + ID + " =:" + ID);
  750. //先添加参数
  751. Parameter.Add(ParName);
  752. //添加参数的具体内容
  753. for (int i = 0; i < ColumnCount; i++)
  754. {
  755. string[] par = new string[RowCount];
  756. for (int j = 0; j < RowCount; j++)
  757. {
  758. par[j] = dt.Rows[j][i].ToString();
  759. }
  760. Parameter.Add(par);
  761. }
  762. BatchInsert(sb.ToString(), Parameter.ToArray());
  763. }
  764. /// <summary>
  765. /// 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
  766. /// 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
  767. /// </summary>
  768. /// <param name="sql"></param>
  769. /// <param name="names"></param>
  770. public void BatchInsert(string sql, params object[][] names)
  771. {
  772. command = new OracleCommand(sql, connection);
  773. Reconnect(command);
  774. command.ArrayBindCount = names[1].Length;
  775. //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
  776. //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
  777. for (int i = 1; i <= names[0].Length; i++)
  778. {
  779. command.Parameters.Add(new OracleParameter(names[0][i - 1].ToString(), OracleDbType.Varchar2, names[i], ParameterDirection.Input));
  780. }
  781. command.ExecuteNonQuery();
  782. command.Dispose();
  783. }
  784. public void BatchInsertDataTable(string sql, string[] param, params object[][] param1)
  785. {
  786. command = new OracleCommand(sql, connection);
  787. Reconnect(command);
  788. command.ArrayBindCount = param1[0].Length;
  789. //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
  790. //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
  791. for (int i = 0; i < param.Length; i++)
  792. {
  793. command.Parameters.Add(new OracleParameter(param[i].ToString(), OracleDbType.Varchar2, param1[i], ParameterDirection.Input));
  794. }
  795. command.ExecuteNonQuery();
  796. command.Dispose();
  797. }
  798. /// <summary>
  799. /// 查询DataList配置的字段
  800. /// </summary>
  801. /// <param name="TableName"></param>
  802. /// <param name="Caller"></param>
  803. /// <returns></returns>
  804. public string GetDataList(string TableName, string Caller)
  805. {
  806. DataTable dt = new DataTable();
  807. string SQL = " select listagg(dld_field,',') within group (order by dld_id) from datalistdetail where dld_caller='" + Caller + "'";
  808. command = new OracleCommand(SQL, connection);
  809. Reconnect(command);
  810. OracleDataAdapter ad = new OracleDataAdapter(command);
  811. ad.Fill(dt);
  812. ad.Dispose();
  813. command.Dispose();
  814. return dt.Rows[0][0].ToString();
  815. }
  816. /// <summary>
  817. /// 取Configs表中的配置,进行该客户是否执行某个操作
  818. /// </summary>
  819. /// <param name="Code"></param>
  820. /// <param name="Caller"></param>
  821. /// <returns></returns>
  822. public object GetConfig(string Code, string Caller)
  823. {
  824. DataTable dt = new DataTable();
  825. string sql = "select Data from configs where code='" + Code + "' and caller='" + Caller + "'";
  826. dt = (DataTable)ExecuteSql(sql, "select");
  827. if (dt.Rows.Count == 0)
  828. {
  829. return "";
  830. }
  831. else
  832. {
  833. return dt.Rows[0]["Data"];
  834. }
  835. }
  836. //将数据类型的列类型转换为DataTable
  837. public DataTable DataTypeColumnToDataTable(DataTable dt)
  838. {
  839. DataTable dt1 = new DataTable();
  840. dt1.Rows.Add();
  841. foreach (DataRow dr in dt.Rows)
  842. {
  843. dt1.Columns.Add(dr[0].ToString());
  844. int index = dt.Rows.IndexOf(dr);
  845. if (dr[1].ToString() == "NUMBER")
  846. {
  847. dt1.Rows[0][index] = 0;
  848. }
  849. if (dr[1].ToString() == "VARCHAR2")
  850. {
  851. dt1.Rows[0][index] = "这是一段文字";
  852. }
  853. if (dr[1].ToString() == "DATE")
  854. {
  855. dt1.Rows[0][index] = DateTime.Now.ToString("yyyy-MM-dd");
  856. }
  857. if (dr[1].ToString() == "FLOAT")
  858. {
  859. dt1.Rows[0][index] = 1.0;
  860. }
  861. if (dr[1].ToString() == "CLOB")
  862. {
  863. dt1.Rows[0][index] = "一段长文字";
  864. }
  865. }
  866. return dt1;
  867. }
  868. /// <summary>
  869. /// 通过条件更新
  870. /// </summary>
  871. /// <param name="TableName"></param>
  872. /// <param name="update"></param>
  873. /// <param name="condition"></param>
  874. public string UpdateByCondition(string TableName, string update, string condition)
  875. {
  876. string sql = "update " + TableName + " set " + update + " where " + condition;
  877. command = new OracleCommand(sql, connection);
  878. Reconnect(command);
  879. command.ExecuteNonQuery();
  880. command.Dispose();
  881. return sql;
  882. }
  883. /// <summary>
  884. /// 调用存储过程
  885. /// </summary>
  886. /// <param name="ProcedureName"></param>
  887. /// <param name="param"></param>
  888. public void CallProcedure(string ProcedureName, ref string[] param)
  889. {
  890. command = new OracleCommand(ProcedureName);
  891. command.Connection = connection;
  892. Reconnect(command);
  893. command.CommandText = ProcedureName;
  894. command.CommandType = CommandType.StoredProcedure;
  895. for (int i = 0; i < param.Length; i++)
  896. command.Parameters.Add(new OracleParameter(param[i].ToString(), OracleDbType.Varchar2, 200, param[i], ParameterDirection.InputOutput));
  897. command.ExecuteNonQuery();
  898. for (int i = 0; i < command.Parameters.Count; i++)
  899. param[i] = command.Parameters[i].Value.ToString();
  900. command.Dispose();
  901. }
  902. /// <summary>
  903. /// 出现异常进行回滚的执行方法
  904. /// </summary>
  905. /// <param name="SQL"></param>
  906. public void ExecuteSQLTran(params string[] SQL)
  907. {
  908. OracleTransaction tx = connection.BeginTransaction();
  909. command = new OracleCommand();
  910. command.Connection = connection;
  911. command.Transaction = tx;
  912. try
  913. {
  914. foreach (string sql in SQL)
  915. {
  916. if (!String.IsNullOrEmpty(sql))
  917. {
  918. command.CommandText = sql;
  919. command.ExecuteNonQuery();
  920. }
  921. }
  922. tx.Commit();
  923. }
  924. catch (System.Data.OracleClient.OracleException E)
  925. {
  926. tx.Rollback();
  927. throw new Exception(E.Message);
  928. }
  929. command.Dispose();
  930. }
  931. /// <summary>
  932. /// 用于将string 的数组转换成SQL的查询内容
  933. /// </summary>
  934. /// <param name="Fields"></param>
  935. /// <returns></returns>
  936. private string AddField(string[] Fields)
  937. {
  938. string sql = " ";
  939. foreach (string field in Fields)
  940. {
  941. sql += field + ",";
  942. }
  943. return sql.Substring(0, sql.Length - 1);
  944. }
  945. /// <summary>
  946. /// 通过查询的内容获取到字段的描述
  947. /// </summary>
  948. /// <param name="field"></param>
  949. /// <returns></returns>
  950. private static string[] GetCaptionFromField(string field)
  951. {
  952. string[] caption = field.Split(',');
  953. for (int i = 0; i < caption.Length; i++)
  954. {
  955. caption[i] = caption[i].Substring(0, caption[i].LastIndexOf("as")).Trim();
  956. }
  957. return caption;
  958. }
  959. /// <summary>
  960. /// 通过查询的语句获取查询的字段
  961. /// </summary>
  962. /// <param name="field"></param>
  963. /// <returns></returns>
  964. private static string[] GetField(string field)
  965. {
  966. string[] fields = field.Split(',');
  967. for (int i = 0; i < fields.Length; i++)
  968. {
  969. fields[i] = fields[i].Substring(fields[i].LastIndexOf("as") + 2, fields[i].Length - fields[i].LastIndexOf("as") - 2).Trim();
  970. }
  971. return fields;
  972. }
  973. public object GetLabelParam(string sql)
  974. {
  975. DataTable dt = new DataTable();
  976. command = new OracleCommand(sql, connection);
  977. Reconnect(command);
  978. OracleDataAdapter ad = new OracleDataAdapter();
  979. ad.SelectCommand = command;
  980. ad.Fill(dt);
  981. if (dt.Rows.Count > 0)
  982. {
  983. ad.Dispose();
  984. command.Dispose();
  985. return dt.Rows[0][0];
  986. }
  987. else
  988. {
  989. command.Dispose();
  990. return "";
  991. }
  992. }
  993. public static string[] GetParamFromSQL(string SQL)
  994. {
  995. string[] par = SQL.Split(':');
  996. //用来存参数的数组
  997. StringBuilder[] addpar = new StringBuilder[par.Length - 1];
  998. string[] param = new string[par.Length - 1];
  999. for (int i = 0; i < par.Length - 1; i++)
  1000. {
  1001. //新建一个char类型的数组用来存储每个字节的变量
  1002. char[] c = par[i + 1].ToCharArray();
  1003. addpar[i] = new StringBuilder();
  1004. for (int j = 0; j < c.Length; j++)
  1005. {
  1006. if (c[j] != ' ' && c[j] != ',' && c[j] != ')')
  1007. {
  1008. addpar[i].Append(c[j]);
  1009. }
  1010. else
  1011. {
  1012. break;
  1013. }
  1014. }
  1015. }
  1016. for (int i = 0; i < par.Length - 1; i++)
  1017. {
  1018. param[i] = addpar[i].ToString();
  1019. }
  1020. return param;
  1021. }
  1022. private void Reconnect(OracleCommand cmd)
  1023. {
  1024. if (cmd.Connection.State == ConnectionState.Closed)
  1025. {
  1026. cmd.Connection.Open();
  1027. LogManager.DoLog("超时重连");
  1028. }
  1029. }
  1030. }
  1031. }