using Oracle.ManagedDataAccess.Client; using System; using System.Collections.Generic; using System.Data; using System.Text; using UAS_MES_NEW.PublicMethod; namespace UAS_MES_NEW.DataOperate { class DataHelper { //系统默认的的连接字符串 private string ConnectionStrings = Properties.Settings.Default.Properties["MES"].DefaultValue.ToString(); //用户选择的数据库的连接字符串 public static string DBConnectionString; public static OracleConnection connection = null; OracleCommand command = null; int ReconnectTime = 0; /// /// 执行构造函数的时候打开数据库的链接 /// public DataHelper() { try { //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 if (DBConnectionString == null || DBConnectionString == ConnectionStrings) connection = new OracleConnection(ConnectionStrings); else connection = new OracleConnection(DBConnectionString); connection.Open(); } catch (Exception e) { LogManager.DoLog(e.Message); } } /// /// 根据表名获取该表字段数据类型 /// public DataTable GetColumnDataType(string TableName) { DataTable dt = new DataTable(); command = new OracleCommand("select Column_Name,Data_Type from cols where TABLE_name=upper('" + TableName + "')", connection); Reconnect(command); OracleDataAdapter ad = new OracleDataAdapter(command); ad.Fill(dt); ad.Dispose(); command.Dispose(); return dt; } /// /// 获取第一行第一列的信息 /// public object getFieldDataByCondition(string TableName, string Field, string Condition) { DataTable dt = new DataTable(); string sql = "select " + Field + " from " + TableName + " where " + Condition; command = new OracleCommand(sql, connection); Console.WriteLine(sql); Reconnect(command); OracleDataAdapter ad = new OracleDataAdapter(); ad.SelectCommand = command; try { ad.Fill(dt); } catch (Exception) { connection = new OracleConnection(DBConnectionString); connection.Open(); command = new OracleCommand(sql, connection); ad = new OracleDataAdapter(); ad.SelectCommand = command; ad.Fill(dt); } ad.Dispose(); command.Dispose(); if (dt.Rows.Count > 0) { return dt.Rows[0][0]; } else { return ""; } } /// /// 执行打印的SQL /// /// SQL语句 /// 动态添加的参数,主要根据条码枪扫描获取 /// public object ExecutePrintSQL(string SQL, params string[] Parameters) { //按照?拆分数据,然后以:Param替换问号,同时添加参数 string[] Param = SQL.Split('?'); int ParamNum = Param.Length - 1; //条码打印必然存在需要维护的参数 if (ParamNum > 0) { StringBuilder sb = new StringBuilder(); for (int i = 0; i < ParamNum; i++) { sb.Append(Param[i] + ":Param" + i); } command = new OracleCommand(sb.ToString(), connection); for (int i = 0; i < ParamNum; i++) { command.Parameters.Add("Param" + i, OracleDbType.Varchar2, Parameters[i], ParameterDirection.Input); } OracleDataAdapter ad = new OracleDataAdapter(command); DataTable dt = new DataTable(); ad.Fill(dt); ad.Dispose(); command.Dispose(); return dt; } return "参数错误,请检查SQL语句"; } /// /// 获取指定表的记录的条数 ,带条件 /// /// public int getRowCount(string TableName, string Condition) { DataTable dt = new DataTable(); string sql = "select count(1) from " + TableName + " where " + Condition; command = new OracleCommand(sql, connection); Reconnect(command); OracleDataAdapter ad = new OracleDataAdapter(command); ad.Fill(dt); ad.Dispose(); command.Dispose(); return int.Parse(dt.Rows[0][0].ToString()); } /// /// 获取指定表的记录的条数 ,不带条件 /// /// /// public int getRowCount(string TableName) { DataTable dt = new DataTable(); string sql = "select count(1) from " + TableName; command = new OracleCommand(sql, connection); Reconnect(command); OracleDataAdapter ad = new OracleDataAdapter(command); ad.Fill(dt); ad.Dispose(); command.Dispose(); return int.Parse(dt.Rows[0][0].ToString()); } /// /// 通过表名和获取单行的记录 /// public DataTable getFieldsDataByCondition(string TableName, string[] Fields, string Condition) { DataTable dt = new DataTable(); string sql = "select "; sql += AddField(Fields); sql += " from " + TableName + " where " + Condition + " and rownum=1"; command = new OracleCommand(sql, connection); Reconnect(command); OracleDataAdapter ad = new OracleDataAdapter(command); try { ad.Fill(dt); } catch (Exception) { connection = new OracleConnection(DBConnectionString); connection.Open(); command = new OracleCommand(sql, connection); ad = new OracleDataAdapter(); ad.SelectCommand = command; ad.Fill(dt); } ad.Dispose(); command.Dispose(); return dt; } /// /// 将DataTable导入到指定的表中 /// /// /// public void InsertDataTable(DataTable DataTable, string TableName) { for (int i = 0; i < DataTable.Rows.Count; i++) { for (int j = 0; j < DataTable.Columns.Count; j++) { } } } /// /// 按分页获取数据 /// /// 表名 /// 查询字段 /// 当前页面 /// 页面展示条数 /// /// // SELECT * FROM (SELECT A.* FROM (SELECT* FROM datalist) A WHERE ROWNUM <= 50) WHERE ROWNUM >= 21 public DataTable getFieldsDatasByPageing(string TableName, string Fields, int CurrentPage, int PageSize, string Caller, params string[] condition) { DataTable dt = new DataTable(); StringBuilder sql = new StringBuilder(); //先查询出配置出去的列 //获取查询的列 string[] caption = GetCaptionFromField(Fields); //获取对应列的描述 string[] field = GetField(Fields); sql.Append(" select * from (select RowNum RN, A.* from (select "); sql.Append(AddField(caption)); if (condition.Length > 0) { if (condition[0] != null && condition[0].Trim() != "") sql.Append(" from " + TableName + " where " + condition[0] + " ) A where ROWNUM <=" + CurrentPage * PageSize + ") where RN>" + (CurrentPage - 1) * PageSize); else sql.Append(" from " + TableName + ") A where ROWNUM <= " + CurrentPage * PageSize + ") where RN> " + (CurrentPage - 1) * PageSize); } command = new OracleCommand(sql.ToString(), connection); Reconnect(command); OracleDataAdapter ad = new OracleDataAdapter(command); ad.Fill(dt); ad.Dispose(); command.Dispose(); dt.Columns.RemoveAt(0); foreach (DataColumn dc in dt.Columns) { dc.ColumnName = field[dt.Columns.IndexOf(dc)]; dc.Caption = caption[dt.Columns.IndexOf(dc)]; } return dt; } /// /// 通过表名,字段和条件获取DataTable类型的数据 /// public DataTable getFieldsDatasByCondition(string TableName, string[] Fields, string Condition) { DataTable dt = new DataTable(); string sql = "select "; sql += AddField(Fields); sql += " from " + TableName + " where " + Condition; command = new OracleCommand(sql, connection); Reconnect(command); OracleDataAdapter ad = new OracleDataAdapter(command); try { ad.Fill(dt); } catch (Exception) { connection = new OracleConnection(DBConnectionString); connection.Open(); command = new OracleCommand(sql, connection); ad = new OracleDataAdapter(); ad.SelectCommand = command; ad.Fill(dt); } ad.Dispose(); command.Dispose(); return dt; } /// /// 通过表名,字段获取DataTable类型的数据 /// public DataTable getFieldsDatas(string TableName, string Fields) { DataTable dt = new DataTable(); string sql = "select "; sql += Fields; sql += " from " + TableName; command = new OracleCommand(sql, connection); Reconnect(command); OracleDataAdapter ad = new OracleDataAdapter(command); ad.SelectCommand = command; try { ad.Fill(dt); } catch (Exception) { connection = new OracleConnection(DBConnectionString); connection.Open(); command = new OracleCommand(sql, connection); ad = new OracleDataAdapter(); ad.SelectCommand = command; ad.Fill(dt); } ad.Dispose(); command.Dispose(); return dt; } /// /// 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 /// /// /// /// public void UpDateTableByCondition(DataTable DataTable, string TableName, string PrimaryKey, params string[] sql) { if (DataTable == null) { return; } StringBuilder sb = new StringBuilder(); //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 DataTable data = (DataTable)ExecuteSql("select Column_Name,Data_Type from cols where TABLE_name=upper('" + TableName + "')", "select"); //将所有的字段拼接起来 for (int i = 0; i < data.Rows.Count; i++) { sb.Append("#" + data.Rows[i]["Column_Name"].ToString()); } //移除掉所有不属于该表的列 for (int i = DataTable.Columns.Count - 1; i >= 0; i--) { if (!sb.ToString().Contains(DataTable.Columns[i].ColumnName.ToUpper())) { DataTable.Columns.RemoveAt(i); } } sb.Clear(); //计算有多少个是新加的行,根据主键为空来进行判断 int NewRowCount = 0; for (int i = 0; i < DataTable.Rows.Count; i++) { if (DataTable.Rows[i][PrimaryKey] == null || DataTable.Rows[i][PrimaryKey].ToString() == "") { NewRowCount = NewRowCount + 1; } } if (sql.Length > 0) { if (NewRowCount > 0) { //获取参数的个数 int paramsNum = sql[0].Split(':').Length - 1; //解析参数的数据 string[] param = GetParamFromSQL(sql[0]); //新建一个二维数组去 string[][] param_array = new string[paramsNum][]; //实例化每个一维数组 for (int i = 0; i < paramsNum; i++) { param_array[i] = new string[NewRowCount]; } //设置每列参数的索引 int num = 0; //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 for (int i = DataTable.Rows.Count - 1; i >= 0; i--) { if (DataTable.Rows[i][PrimaryKey] == null || DataTable.Rows[i][PrimaryKey].ToString() == "") { //当为新添加行的时候才去设置参数,设置过后索引+1 for (int j = 0; j < paramsNum; j++) { param_array[j][num] = DataTable.Rows[i][param[j]].ToString(); } DataTable.Rows.RemoveAt(i); num++; } } BatchInsertDataTable(sql[0], param, param_array); } } //不是新增行的启用更新的方法 sb.Append("update " + TableName + " set "); //拼接语句,特殊处理日期 foreach (DataColumn dc in DataTable.Columns) { if (!dc.DataType.ToString().Equals("System.DateTime")) { sb.Append(dc.Caption + "=:" + dc.Caption + ","); } else { sb.Append(dc.Caption + "=:" + dc.Caption + ","); } } sb.Remove(sb.Length - 1, 1); sb.Append(" where " + PrimaryKey + "=:" + PrimaryKey); command = new OracleCommand(sb.ToString(), connection); OracleDataAdapter ad = new OracleDataAdapter(command); // 参数的长度是DataTable的行数决定的 command.ArrayBindCount = DataTable.Rows.Count; //默认全部是Varchar2类型的 OracleDbType ob = OracleDbType.Varchar2; for (int i = 0; i < DataTable.Columns.Count; i++) { object[] param = new object[DataTable.Rows.Count]; for (int j = 0; j < DataTable.Rows.Count; j++) { DateTime dt = DateTime.Now; if (DateTime.TryParse(DataTable.Rows[j][i].ToString(), out dt)) { param[j] = dt; ob = OracleDbType.Date; } else { ob = OracleDbType.Varchar2; param[j] = DataTable.Rows[j][i]; } } //添加批量更新的参数 command.Parameters.Add(new OracleParameter(DataTable.Columns[i].Caption, ob, param, ParameterDirection.Input)); } ad.UpdateCommand = command; ad.Update(DataTable); ad.Dispose(); command.Dispose(); } /// /// 获取DbFind的数据的DataTable的结构 /// /// /// /// public DataTable GetDbFindDataTable(string field, string caller) { string sql = "select * from dbfindsetui where ds_caller='" + caller + "' and ds_whichui='" + field + "'"; DataTable dt = (DataTable)ExecuteSql(sql, "select"); if (dt.Rows.Count != 0) { //通过#号分割字段 string[] dbfield = dt.Rows[0]["ds_findtoui"].ToString().Split('#'); string[] cnfield = dt.Rows[0]["ds_dbcaption"].ToString().Split('#'); //获取查询要查询的Table string dbtable = dt.Rows[0]["ds_tables"].ToString(); //拼接查询的字段 for (int i = 0; i < dbfield.Length; i++) { dbfield[i] = dbfield[i].Split(',')[0]; } //新建一个空的DataTable DataTable dt1 = new DataTable(); //往空的DataTable添加结构,ColumnName是中文,Caption是实际的字段名称 for (int i = 0; i < cnfield.Length; i++) { dt1.Columns.Add(cnfield[i]); dt1.Columns[i].Caption = dbfield[i]; } //返回一个带有结构的空的DataTable //DbFind.BindTable1 = dbtable; return dt1; } else { return null; } } /// /// 检测内容是否存在 /// /// /// /// public bool CheckExist(string TableName, string Condition) { string sql = "select count(1) from " + TableName + " where " + Condition; command = new OracleCommand(sql, connection); Reconnect(command); OracleDataAdapter ad = new OracleDataAdapter(command); DataTable dt = new DataTable(); try { ad.Fill(dt); } catch (Exception) { connection = new OracleConnection(DBConnectionString); connection.Open(); command = new OracleCommand(sql, connection); ad = new OracleDataAdapter(); ad.SelectCommand = command; ad.Fill(dt); } ad.Dispose(); command.Dispose(); return int.Parse(dt.Rows[0][0].ToString()) > 0; } /// /// 直接执行SQL,同时传入SQL的类型 /// /// /// /// public object ExecuteSql(string SQL, string Type, params object[] names) { object result = null; command = new OracleCommand(SQL, connection); Reconnect(command); //用来拼接参数的 if (names.Length > 0) { string[] par = SQL.Split(':'); //用来存参数的数组 StringBuilder[] addpar = new StringBuilder[par.Length - 1]; for (int i = 0; i < par.Length - 1; i++) { //新建一个char类型的数组用来存储每个字节的变量 char[] c = par[i + 1].ToCharArray(); addpar[i] = new StringBuilder(); for (int j = 0; j < c.Length; j++) { if (c[j] != ' ' && c[j] != ',' && c[j] != ')') { addpar[i].Append(c[j]); } else { break; } } } for (int i = 0; i < addpar.Length; i++) command.Parameters.Add(new OracleParameter(addpar[i].ToString(), OracleDbType.Varchar2, names[i], ParameterDirection.Input)); } Console.WriteLine(SQL); switch (Type.ToUpper()) { case "SELECT": OracleDataAdapter ad = new OracleDataAdapter(command); result = new DataTable(); try { ad.Fill((DataTable)result); } catch (Exception) { connection = new OracleConnection(DBConnectionString); connection.Open(); command = new OracleCommand(SQL, connection); ad = new OracleDataAdapter(); ad.SelectCommand = command; ad.Fill((DataTable)result); } break; case "DELETE": try { result = command.ExecuteNonQuery(); } catch (Exception) { command.Connection = new OracleConnection(DBConnectionString); command.Connection.Open(); result = command.ExecuteNonQuery(); } break; case "UPDATE": try { result = command.ExecuteNonQuery(); } catch (Exception) { command.Connection = new OracleConnection(DBConnectionString); command.Connection.Open(); result = command.ExecuteNonQuery(); } break; case "INSERT": try { result = command.ExecuteNonQuery(); } catch (Exception) { command.Connection = new OracleConnection(DBConnectionString); command.Connection.Open(); result = command.ExecuteNonQuery(); } break; } command.Dispose(); return result; } /// /// 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 /// /// public void CheckSQL(string SQL) { SQL = SQL.Replace("?", ":Param"); command = new OracleCommand(SQL, connection); command.ExecuteNonQuery(); command.Dispose(); } public int GetDistinctRowCount(string TableName, string Field) { DataTable dt = new DataTable(); string sql = "select distinct count('" + Field + "') from " + TableName; command = new OracleCommand(sql, connection); Reconnect(command); OracleDataAdapter ad = new OracleDataAdapter(command); try { ad.Fill(dt); } catch (Exception) { connection = new OracleConnection(DBConnectionString); connection.Open(); command = new OracleCommand(sql, connection); ad = new OracleDataAdapter(); ad.SelectCommand = command; ad.Fill(dt); } ad.Dispose(); command.Dispose(); return int.Parse(dt.Rows[0][0].ToString()); } /// /// 根据Caller获取流水号 /// /// /// public string GetSerialNumberByCaller(string Caller) { string SerialNumber = getFieldDataByCondition("MaxNumbers", "mn_number", "mn_tablename='" + Caller + "'").ToString(); UpdateByCondition("MaxNumbers", "mn_number=mn_number+1", "mn_tablename='" + Caller + "'"); return SerialNumber; } /// /// 根据主键ID删除表的数据 /// /// 表名 /// 主键 /// 需要删除主键ID的数组 public void DeleteDataByID(string TableName, string ID, string[] DeleteID) { string sql = "delete from " + TableName + " where " + ID + " =:DeleteID"; command = new OracleCommand(sql, connection); Reconnect(command); command.ArrayBindCount = DeleteID.Length; command.Parameters.Add(new OracleParameter("DeleteID", OracleDbType.Long, DeleteID, ParameterDirection.Input)); try { command.ExecuteNonQuery(); } catch (Exception) { command.Connection = new OracleConnection(DBConnectionString); command.Connection.Open(); command.ExecuteNonQuery(); } command.Dispose(); } /// /// 通过序列的名称获取序列 /// /// /// public string GetSEQ(string SeqName) { DataTable dt = new DataTable(); dt = (DataTable)ExecuteSql("SELECT " + SeqName + ".NEXTVAL FROM DUAL", "select"); return dt.Rows[0][0].ToString(); } /// /// 通过序列的名称获取序列 /// /// /// public string[] GetSEQ(string SeqName, int Num) { DataTable dt = new DataTable(); dt = (DataTable)ExecuteSql("SELECT " + SeqName + ".nextval FROM DUAL CONNECT BY LEVEL<=" + Num, "select"); string[] SerialNum = new string[dt.Rows.Count]; for (int i = 0; i < dt.Rows.Count; i++) { SerialNum[i] = dt.Rows[i][0].ToString(); } return SerialNum; } public void SaveDataTable(DataTable dt, string TableName, string ID, params string[] sql) { if (dt == null) { return; } StringBuilder sb = new StringBuilder(); //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 DataTable data = (DataTable)ExecuteSql("select Column_Name,Data_Type from cols where TABLE_name=upper('" + TableName + "')", "select"); //将所有的字段拼接起来 for (int i = 0; i < data.Rows.Count; i++) { sb.Append("#" + data.Rows[i]["Column_Name"].ToString()); } //移除掉所有不属于该表的列 for (int i = dt.Columns.Count - 1; i >= 0; i--) { if (!sb.ToString().Contains(dt.Columns[i].ColumnName.ToUpper())) { dt.Columns.RemoveAt(i); } } sb.Clear(); //计算有多少个是新加的行,根据主键为空来进行判断 int NewRowCount = 0; for (int i = 0; i < dt.Rows.Count; i++) { if (dt.Rows[i][ID] == null || dt.Rows[i][ID].ToString() == "") { NewRowCount = NewRowCount + 1; } } if (sql.Length > 0) { if (NewRowCount > 0) { //获取参数的个数 int paramsNum = sql[0].Split(':').Length - 1; //解析参数的数据 string[] param = GetParamFromSQL(sql[0]); //新建一个二维数组去 string[][] param_array = new string[paramsNum][]; //实例化每个一维数组 for (int i = 0; i < paramsNum; i++) { param_array[i] = new string[NewRowCount]; } //设置每列参数的索引 int num = 0; //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 for (int i = dt.Rows.Count - 1; i >= 0; i--) { if (dt.Rows[i][ID] == null || dt.Rows[i][ID].ToString() == "") { //当为新添加行的时候才去设置参数,设置过后索引+1 for (int j = 0; j < paramsNum; j++) { param_array[j][num] = dt.Rows[i][param[j]].ToString(); } dt.Rows.RemoveAt(i); num++; } } BatchInsertDataTable(sql[0], param, param_array); } } sb.Clear(); sb.Append("update " + TableName + " set "); int ColumnCount = dt.Columns.Count; int RowCount = dt.Rows.Count; //存数据的参数 List Parameter = new List(); //存参数名的参数 string[] ParName = new string[ColumnCount]; for (int i = 0; i < ColumnCount; i++) { ParName[i] = dt.Columns[i].ColumnName; if (i == dt.Columns.Count - 1) sb.Append(dt.Columns[i].ColumnName + "=:" + dt.Columns[i].ColumnName); else sb.Append(dt.Columns[i].ColumnName + "=:" + dt.Columns[i].ColumnName + ","); } sb.Append(" where " + ID + " =:" + ID); //先添加参数 Parameter.Add(ParName); //添加参数的具体内容 for (int i = 0; i < ColumnCount; i++) { string[] par = new string[RowCount]; for (int j = 0; j < RowCount; j++) { par[j] = dt.Rows[j][i].ToString(); } Parameter.Add(par); } BatchInsert(sb.ToString(), Parameter.ToArray()); } /// /// 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 /// 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 /// /// /// public void BatchInsert(string sql, params object[][] names) { command = new OracleCommand(sql, connection); Reconnect(command); command.ArrayBindCount = names[1].Length; //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 //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 for (int i = 1; i <= names[0].Length; i++) { command.Parameters.Add(new OracleParameter(names[0][i - 1].ToString(), OracleDbType.Varchar2, names[i], ParameterDirection.Input)); } try { command.ExecuteNonQuery(); } catch (Exception) { command.Connection = new OracleConnection(DBConnectionString); command.Connection.Open(); command.ExecuteNonQuery(); } command.Dispose(); } public void BatchInsertDataTable(string sql, string[] param, params object[][] param1) { command = new OracleCommand(sql, connection); Reconnect(command); command.ArrayBindCount = param1[0].Length; //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 //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 for (int i = 0; i < param.Length; i++) { command.Parameters.Add(new OracleParameter(param[i].ToString(), OracleDbType.Varchar2, param1[i], ParameterDirection.Input)); } try { command.ExecuteNonQuery(); } catch (Exception) { command.Connection = new OracleConnection(DBConnectionString); command.Connection.Open(); command.ExecuteNonQuery(); } command.Dispose(); } /// /// 取Configs表中的配置,进行该客户是否执行某个操作 /// /// /// /// public object GetConfig(string Code, string Caller) { DataTable dt = new DataTable(); string sql = "select Data from configs where code='" + Code + "' and caller='" + Caller + "'"; dt = (DataTable)ExecuteSql(sql, "select"); if (dt.Rows.Count == 0) { return ""; } else { return dt.Rows[0]["Data"]; } } //将数据类型的列类型转换为DataTable public DataTable DataTypeColumnToDataTable(DataTable dt) { DataTable dt1 = new DataTable(); dt1.Rows.Add(); foreach (DataRow dr in dt.Rows) { dt1.Columns.Add(dr[0].ToString()); int index = dt.Rows.IndexOf(dr); if (dr[1].ToString() == "NUMBER") { dt1.Rows[0][index] = 0; } if (dr[1].ToString() == "VARCHAR2") { dt1.Rows[0][index] = "这是一段文字"; } if (dr[1].ToString() == "DATE") { dt1.Rows[0][index] = DateTime.Now.ToString("yyyy-MM-dd"); } if (dr[1].ToString() == "FLOAT") { dt1.Rows[0][index] = 1.0; } if (dr[1].ToString() == "CLOB") { dt1.Rows[0][index] = "一段长文字"; } } return dt1; } /// /// 通过条件更新 /// /// /// /// public string UpdateByCondition(string TableName, string update, string condition) { string sql = "update " + TableName + " set " + update + " where " + condition; command = new OracleCommand(sql, connection); Console.WriteLine(sql); Reconnect(command); try { command.ExecuteNonQuery(); } catch (Exception) { command.Connection = new OracleConnection(DBConnectionString); command.Connection.Open(); command.ExecuteNonQuery(); } command.Dispose(); return sql; } /// /// 调用存储过程 /// /// /// public void CallProcedure(string ProcedureName, ref string[] param) { command = new OracleCommand(ProcedureName); command.Connection = connection; Reconnect(command); command.CommandText = ProcedureName; command.CommandType = CommandType.StoredProcedure; for (int i = 0; i < param.Length; i++) command.Parameters.Add(new OracleParameter(param[i].ToString(), OracleDbType.Varchar2, 3000, param[i], ParameterDirection.InputOutput)); try { command.ExecuteNonQuery(); } catch (Exception) { command.Connection = new OracleConnection(DBConnectionString); command.Connection.Open(); command.ExecuteNonQuery(); } for (int i = 0; i < command.Parameters.Count; i++) param[i] = command.Parameters[i].Value.ToString(); command.Dispose(); } /// /// 出现异常进行回滚的执行方法 /// /// public void ExecuteSQLTran(params string[] SQL) { OracleTransaction tx = connection.BeginTransaction(); command = new OracleCommand(); command.Connection = connection; command.Transaction = tx; try { foreach (string sql in SQL) { if (!String.IsNullOrEmpty(sql)) { Console.WriteLine(sql); command.CommandText = sql; try { command.ExecuteNonQuery(); } catch (Exception) { command.Connection = new OracleConnection(DBConnectionString); command.Connection.Open(); command.ExecuteNonQuery(); } } } tx.Commit(); } catch (Exception E) { tx.Rollback(); throw new Exception(E.Message); } command.Dispose(); } /// /// 用于将string 的数组转换成SQL的查询内容 /// /// /// private string AddField(string[] Fields) { string sql = " "; foreach (string field in Fields) { sql += field + ","; } return sql.Substring(0, sql.Length - 1); } /// /// 通过查询的内容获取到字段的描述 /// /// /// private static string[] GetCaptionFromField(string field) { string[] caption = field.Split(','); for (int i = 0; i < caption.Length; i++) { caption[i] = caption[i].Substring(0, caption[i].LastIndexOf("as")).Trim(); } return caption; } /// /// 通过查询的语句获取查询的字段 /// /// /// private static string[] GetField(string field) { string[] fields = field.Split(','); for (int i = 0; i < fields.Length; i++) { fields[i] = fields[i].Substring(fields[i].LastIndexOf("as") + 2, fields[i].Length - fields[i].LastIndexOf("as") - 2).Trim(); } return fields; } public object GetLabelParam(string sql) { DataTable dt = new DataTable(); command = new OracleCommand(sql, connection); Reconnect(command); OracleDataAdapter ad = new OracleDataAdapter(); ad.SelectCommand = command; try { ad.Fill(dt); } catch (Exception) { connection = new OracleConnection(DBConnectionString); connection.Open(); command = new OracleCommand(sql, connection); ad = new OracleDataAdapter(); ad.SelectCommand = command; ad.Fill(dt); } if (dt.Rows.Count > 0) { ad.Dispose(); command.Dispose(); return dt.Rows[0][0]; } else { command.Dispose(); return ""; } } public static string[] GetParamFromSQL(string SQL) { string[] par = SQL.Split(':'); //用来存参数的数组 StringBuilder[] addpar = new StringBuilder[par.Length - 1]; string[] param = new string[par.Length - 1]; for (int i = 0; i < par.Length - 1; i++) { //新建一个char类型的数组用来存储每个字节的变量 char[] c = par[i + 1].ToCharArray(); addpar[i] = new StringBuilder(); for (int j = 0; j < c.Length; j++) { if (c[j] != ' ' && c[j] != ',' && c[j] != ')') { addpar[i].Append(c[j]); } else { break; } } } for (int i = 0; i < par.Length - 1; i++) { param[i] = addpar[i].ToString(); } return param; } public void Dispose() { } private void Reconnect(OracleCommand cmd) { if (cmd.Connection.State == ConnectionState.Closed) { cmd.Connection.Open(); LogManager.DoLog("超时重连"); } } } }