orcl数据库连接字符串+DbHelperOra
Web.config
1.需要Net Manager DB本地监听
<add key="ZXBDB_Connection" value="Data Source=ehrorcl;User ID=ehrorcl;pwd=ehrorcl;max pool size=512;" />
2.ip数据据库直连
<add key="ZXBDB_Connection" value="Data Source=(DESCRIPTION = (ADDRESS_LIST= (ADDRESS = (PROTOCOL = TCP)(HOST = 10.xxx.xxx.254)(PORT = 1521)) ) (CONNECT_DATA= (SID = ehrorcl)));User Id=ehrorcl;Password=ehrorcl;" />
DbHelperOra
using System;
using System.Collections;
using System.Collections.Specialized;
using System.Data;
using System.Data.OracleClient;
using System.Configuration;
using System.Collections.Generic;
using System.Security.Cryptography;
using System.Text;
using System.Reflection;
using System.Linq;
using Newtonsoft.Json;
namespace Maticsoft.DBUtility
{
/// <summary>
/// Copyright (C) Maticsoft
/// 数据访问基础类(基于Oracle)
/// 可以用户可以修改满足自己项目的需要。
/// </summary>
public abstract class DbHelperOra
{
//数据库连接字符串(web.config来配置)，可以动态更改connectionString支持多数据库.
[Obsolete]
public static string connectionString = ConfigurationSettings.AppSettings["ZXBDB_Connection"].ToString();
public DbHelperOra()
{
}
///// <summary>
///// 查询并返回多个table
///// </summary>
///// <param name="strWhere"></param>
///// <returns></returns>
//public static DataSet GetList(List<string> ListSql)
//{
// return DB_Help_Oracle.Query(ListSql);
//}
/// <summary>
/// 查询并返回多个table
/// </summary>
/// <param name="strWhere"></param>
/// <returns></returns>
public static int GetCount(string strsql)
{
return DbHelperOra.Query(strsql).Tables[0].Rows.Count;
}
/// <summary>
/// 3des解密字符串
/// </summary>
/// <param name="paramString">要解密的字符串</param>
/// <param name="paramKey">密钥</param>
/// <returns>解密后的字符串</returns>
/// <remarks>静态方法，采用默认ascii编码</remarks>
public static string Decrypt3DES(string paramString, string paramKey)
{
TripleDESCryptoServiceProvider DES = new
TripleDESCryptoServiceProvider();
MD5CryptoServiceProvider hashMD5 = new MD5CryptoServiceProvider();
DES.Key = hashMD5.ComputeHash(ASCIIEncoding.ASCII.GetBytes(paramKey));
DES.Mode = CipherMode.ECB;
ICryptoTransform DESDecrypt = DES.CreateDecryptor();
string result = "";
try
{
byte[] Buffer = Convert.FromBase64String(paramString);
result = ASCIIEncoding.ASCII.GetString(DESDecrypt.TransformFinalBlock(Buffer, 0, Buffer.Length));
}
catch (Exception e)
{
throw (new Exception("Invalid Key or input string is not a valid base64 string", e));
}
return result;
}
/// <summary>
/// 3des加密字符串
/// </summary>
/// <param name="paramString">要加密的字符串</param>
/// <param name="paramKey">密钥</param>
/// <returns>加密后并经base64编码的字符串</returns>
/// <remarks>静态方法，采用默认ascii编码</remarks>
public static string Encrypt3DES(string paramString, string paramKey)
{
TripleDESCryptoServiceProvider DES = new TripleDESCryptoServiceProvider();
MD5CryptoServiceProvider hashMD5 = new MD5CryptoServiceProvider();
DES.Key = hashMD5.ComputeHash(ASCIIEncoding.ASCII.GetBytes(paramKey));
DES.Mode = CipherMode.ECB;
ICryptoTransform DESEncrypt = DES.CreateEncryptor();
byte[] Buffer = ASCIIEncoding.ASCII.GetBytes(paramString);
return Convert.ToBase64String(DESEncrypt.TransformFinalBlock(Buffer, 0, Buffer.Length));
}
/// <summary>
/// 3des解密字符串
/// </summary>
/// <param name="paramString">要解密的字符串</param>
/// <param name="paramKey">密钥</param>
/// <param name="paramEncoding">编码方式</param>
/// <returns>解密后的字符串</returns>
/// <remarks>静态方法，指定编码方式</remarks>
public static string Decrypt3DES(string paramString, string paramKey, Encoding paramEncoding)
{
TripleDESCryptoServiceProvider DES = new TripleDESCryptoServiceProvider();
MD5CryptoServiceProvider hashMD5 = new MD5CryptoServiceProvider();
DES.Key = hashMD5.ComputeHash(paramEncoding.GetBytes(paramKey));
DES.Mode = CipherMode.ECB;
ICryptoTransform DESDecrypt = DES.CreateDecryptor();
string result = "";
try
{
byte[] Buffer = Convert.FromBase64String(paramString);
result = paramEncoding.GetString(DESDecrypt.TransformFinalBlock
(Buffer, 0, Buffer.Length));
}
catch (Exception e)
{
throw (new Exception("Invalid Key or input string is not a valid base64 string", e));
}
return result;
}
#region 公用方法
public static int GetMaxID(string FieldName, string TableName)
{
string strsql = "select max(" + FieldName + ")+1 from " + TableName;
object obj = GetSingle(strsql);
if (obj == null)
{
return 1;
}
else
{
return int.Parse(obj.ToString());
}
}
public static bool Exists(string strSql)
{
object obj = GetSingle(strSql);
int cmdresult;
if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
{
cmdresult = 0;
}
else
{
cmdresult = int.Parse(obj.ToString());
}
if (cmdresult == 0)
{
return false;
}
else
{
return true;
}
}
public static bool Exists(string strSql, params OracleParameter[] cmdParms)
{
object obj = GetSingle(strSql, cmdParms);
int cmdresult;
if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
{
cmdresult = 0;
}
else
{
cmdresult = int.Parse(obj.ToString());
}
if (cmdresult == 0)
{
return false;
}
else
{
return true;
}
}
#endregion
#region 执行简单SQL语句
/// <summary>
/// 执行SQL语句，返回影响的记录数
/// </summary>
/// <param name="SQLString">SQL语句</param>
/// <returns>影响的记录数</returns>
[Obsolete]
public static int ExecuteSql(string SQLString)
{
using (OracleConnection connection = new OracleConnection(connectionString))
{
using (OracleCommand cmd = new OracleCommand(SQLString, connection))
{
try
{
connection.Open();
int rows = cmd.ExecuteNonQuery();
return rows;
}
catch (System.Data.OracleClient.OracleException E)
{
connection.Close();
throw new Exception(E.Message);
}
}
}
}
/// <summary>
/// 执行多条SQL语句，实现数据库事务。
/// </summary>
/// <param name="SQLStringList">多条SQL语句</param>
public static int ExecuteSqlTran(List<String> strsqllist)
{
using (OracleConnection conn = new OracleConnection(connectionString))
{
conn.Open();
int result = 0;
OracleCommand cmd = new OracleCommand();
cmd.Connection = conn;
OracleTransaction tx = conn.BeginTransaction();
cmd.Transaction = tx;
try
{
for (int n = 0; n < strsqllist.Count; n++)
{
string strsql = strsqllist[n].ToString();
if (strsql.Trim().Length > 1)
{
cmd.CommandText = strsql;
result += cmd.ExecuteNonQuery();
}
}
tx.Commit();
}
catch (System.Data.OracleClient.OracleException E)
{
tx.Rollback();
throw new Exception(E.Message);
}
return result;
}
}
/// <summary>
/// 执行多条SQL语句，实现数据库事务。
/// </summary>
/// <param name="SQLStringList">多条SQL语句</param>
public static int ExecuteSqlTran(ArrayList SQLStringList)
{
using (OracleConnection conn = new OracleConnection(connectionString))
{
conn.Open();
OracleCommand cmd = new OracleCommand();
cmd.Connection = conn;
OracleTransaction tx = conn.BeginTransaction();
cmd.Transaction = tx;
try
{
int count = 0;
for (int n = 0; n < SQLStringList.Count; n++)
{
string strsql = SQLStringList[n].ToString();
if (strsql.Trim().Length > 1)
{
count++;
cmd.CommandText = strsql;
cmd.ExecuteNonQuery();
}
}
tx.Commit();
return count;
}
catch (System.Data.OracleClient.OracleException E)
{
tx.Rollback();
/*throw new */ //Exception(E.Message);
return -1;
}
}
}
/// <summary>
/// 执行带一个存储过程参数的的SQL语句。
/// </summary>
/// <param name="SQLString">SQL语句</param>
/// <param name="content">参数内容,比如一个字段是格式复杂的文章，有特殊符号，可以通过这个方式添加</param>
/// <returns>影响的记录数</returns>
public static int ExecuteSql(string SQLString, string content)
{
using (OracleConnection connection = new OracleConnection(connectionString))
{
OracleCommand cmd = new OracleCommand(SQLString, connection);
OracleParameter myParameter = new OracleParameter("@content", OracleType.NVarChar);
myParameter.Value = content;
cmd.Parameters.Add(myParameter);
try
{
connection.Open();
int rows = cmd.ExecuteNonQuery();
return rows;
}
catch (System.Data.OracleClient.OracleException E)
{
throw new Exception(E.Message);
}
finally
{
cmd.Dispose();
connection.Close();
}
}
}
/// <summary>
/// 执行查询语句，返回DataSet
/// </summary>
/// <param name="SQLString">查询语句</param>
/// <returns>DataSet</returns>
[Obsolete]
public static DataSet Query(List<string> lst)
{
DataSet ds = new DataSet();
StringBuilder strSql = new StringBuilder();
using (OracleConnection connection = new OracleConnection(connectionString))
{
connection.Open();
OracleCommand cmd = new OracleCommand();
cmd.Connection = connection;
strSql.Append("begin ");
for (int i = 0; i < lst.Count; i++)
{
string paraName = "p_cursor_" + i;
strSql.AppendFormat("open :{0} for {1}; ", paraName, lst[i]);
cmd.Parameters.Add(paraName, OracleType.Cursor);
cmd.Parameters[paraName].Direction = ParameterDirection.Output;
cmd.Parameters[paraName].Value = "sql";//这里填写任意 但不能为空！
}
strSql.Append("end;");
cmd.CommandText = strSql.ToString();
OracleDataAdapter da = new OracleDataAdapter();
da.SelectCommand = cmd;
da.Fill(ds);
}
return ds;
}
/// <summary>
/// 向数据库里插入图像格式的字段(和上面情况类似的另一种实例)
/// </summary>
/// <param name="strSQL">SQL语句</param>
/// <param name="fs">图像字节,数据库的字段类型为image的情况</param>
/// <returns>影响的记录数</returns>
/// <summary>
/// 执行一条计算查询结果语句，返回查询结果（object）。
/// </summary>
/// <param name="SQLString">计算查询结果语句</param>
/// <returns>查询结果（object）</returns>
public static object GetSingle(string SQLString)
{
using (OracleConnection connection = new OracleConnection(connectionString))
{
using (OracleCommand cmd = new OracleCommand(SQLString, connection))
{
try
{
connection.Open();
object obj = cmd.ExecuteScalar();
if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
{
return null;
}
else
{
return obj;
}
}
catch (System.Data.OracleClient.OracleException e)
{
connection.Close();
throw new Exception(e.Message);
}
}
}
}
/// <summary>
/// 执行查询语句，返回OracleDataReader ( 注意：调用该方法后，一定要对SqlDataReader进行Close )
/// </summary>
/// <param name="strSQL">查询语句</param>
/// <returns>OracleDataReader</returns>
public static OracleDataReader ExecuteReader(string strSQL)
{
OracleConnection connection = new OracleConnection(connectionString);
OracleCommand cmd = new OracleCommand(strSQL, connection);
try
{
connection.Open();
OracleDataReader myReader = cmd.ExecuteReader(CommandBehavior.CloseConnection);
return myReader;
}
catch (System.Data.OracleClient.OracleException e)
{
throw new Exception(e.Message);
}
}
/// <summary>
/// 执行查询语句，返回DataSet
/// </summary>
/// <param name="SQLString">查询语句</param>
/// <returns>DataSet</returns>
public static DataSet Query(string SQLString)
{
using (OracleConnection connection = new OracleConnection(connectionString))
{
DataSet ds = new DataSet();
try
{
connection.Open();
OracleDataAdapter command = new OracleDataAdapter(SQLString, connection);
command.Fill(ds, "ds");
}
catch (System.Data.OracleClient.OracleException ex)
{
throw new Exception(ex.Message);
}
return ds;
}
}
/// <summary>
/// 执行查询语句，返回DataTable
/// </summary>
/// <param name="SQLString">查询语句</param>
/// <returns>DataSet</returns>
public static DataTable GetTable(string SQLString)
{
using (OracleConnection connection = new OracleConnection(connectionString))
{
DataSet ds = new DataSet();
try
{
connection.Open();
OracleDataAdapter command = new OracleDataAdapter(SQLString, connection);
command.Fill(ds, "ds");
}
catch (System.Data.OracleClient.OracleException ex)
{
throw new Exception(ex.Message);
}
return ds.Tables[0];
}
}
//集成的GetList
public static DataTable GetList(string Colunms, string Table, string str_where)
{
DataTable dt = new DataTable();
if (!string.IsNullOrEmpty(str_where))
{
str_where = " where 1=1 " + str_where;
}
string sql = " select " + Colunms + " from " + Table + str_where;
dt = DbHelperOra.GetTable(sql);
return dt;
}
/// <summary>
/// 获取自增量字符串
/// </summary>
/// <param name="Table">表名</param>
/// <returns></returns>
public static string SeqNextVal(string Table)
{
string nextval = "" + Table + "_SEQ.NEXTVAL";
return nextval;
}
/// <summary>
/// 获取自增量字符串
/// </summary>
/// <param name="Table">表名</param>
/// <returns></returns>
public static string GetNextValSQL(string Table)
{
string nextval = "(SELECT " + Table + "_SEQ.NEXTVAL FROM DUAL)";
return nextval;
}
/// <summary>
/// 获取自增列值
/// </summary>
/// <param name="Table">表名</param>
/// <returns></returns>
public static string GetSeqNextVal(string Table)
{
string strsql = "SELECT " + Table + "_SEQ.NEXTVAL FROM DUAL";
DataTable dt = DbHelperOra.Query(strsql).Tables[0];
if (dt.Rows.Count > 0)
{
return dt.Rows[0][0].ToString();
}
else
{
string GUID_KEY = Guid.NewGuid().ToString(); ;
return GUID_KEY;
}
}
/// <summary>
/// (泛型)Table转List
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="dt"></param>
/// <returns></returns>
public static List<T> ConvertToEx<T>(DataTable dt) where T : new()
{
if (dt == null)
{
return new List<T>();
}
Type type = typeof(T);
List<T> list = new List<T>();
string tempName = string.Empty;
foreach (DataRow row in dt.Rows)
{
PropertyInfo[] pArray = type.GetProperties();
T entity = new T();
foreach (PropertyInfo p in pArray)
{
tempName = p.Name;
if (!p.CanWrite) continue;
object value = row[tempName];
if (value != DBNull.Value) p.SetValue(entity, value, null);
}
list.Add(entity);
}
return list;
}
/// <summary>
/// jjq-传入sql查询后返回list==>必须是select * from
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="sql"></param>
/// <returns></returns>
public static List<T> GetList<T>(string sql) where T : new()
{
List<T> toList = ConvertToEx<T>(Query(sql).Tables[0]);
return toList;
}
/// <summary>
/// table转json
/// </summary>
/// <param name="table"></param>
/// <returns></returns>
public static string GetTableJson(string sql)
{
DataTable dt = Query(sql).Tables[0];
string JsonString = string.Empty;
JsonString = JsonConvert.SerializeObject(dt);
return JsonString;
}
/// <summary>
/// 字段格式化用法 和oracle的TO_DATE用法一致
/// </summary>
public static string TO_DATE(string field)
{
string sql = "TO_DATE('{0}', 'YYYY-MM-DD')";
return string.Format(sql, field);
}
#endregion
#region 执行带参数的SQL语句
/// <summary>
/// 执行SQL语句，返回影响的记录数
/// </summary>
/// <param name="SQLString">SQL语句</param>
/// <returns>影响的记录数</returns>
public static int ExecuteSql(string SQLString, params OracleParameter[] cmdParms)
{
using (OracleConnection connection = new OracleConnection(connectionString))
{
using (OracleCommand cmd = new OracleCommand())
{
try
{
PrepareCommand(cmd, connection, null, SQLString, cmdParms);
int rows = cmd.ExecuteNonQuery();
cmd.Parameters.Clear();
return rows;
}
catch (System.Data.OracleClient.OracleException E)
{
throw new Exception(E.Message);
}
}
}
}
/// <summary>
/// 执行多条SQL语句，实现数据库事务。
/// </summary>
/// <param name="SQLStringList">SQL语句的哈希表（key为sql语句，value是该语句的OracleParameter[]）</param>
public static void ExecuteSqlTran(Hashtable SQLStringList)
{
using (OracleConnection conn = new OracleConnection(connectionString))
{
conn.Open();
using (OracleTransaction trans = conn.BeginTransaction())
{
OracleCommand cmd = new OracleCommand();
try
{
//循环
foreach (DictionaryEntry myDE in SQLStringList)
{
string cmdText = myDE.Key.ToString();
OracleParameter[] cmdParms = (OracleParameter[])myDE.Value;
PrepareCommand(cmd, conn, trans, cmdText, cmdParms);
int val = cmd.ExecuteNonQuery();
cmd.Parameters.Clear();
trans.Commit();
}
}
catch
{
trans.Rollback();
throw;
}
}
}
}
/// <summary>
/// 执行一条计算查询结果语句，返回查询结果（object）。
/// </summary>
/// <param name="SQLString">计算查询结果语句</param>
/// <returns>查询结果（object）</returns>
public static object GetSingle(string SQLString, params OracleParameter[] cmdParms)
{
using (OracleConnection connection = new OracleConnection(connectionString))
{
using (OracleCommand cmd = new OracleCommand())
{
try
{
PrepareCommand(cmd, connection, null, SQLString, cmdParms);
object obj = cmd.ExecuteScalar();
cmd.Parameters.Clear();
if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
{
return null;
}
else
{
return obj;
}
}
catch (System.Data.OracleClient.OracleException e)
{
throw new Exception(e.Message);
}
}
}
}
/// <summary>
/// 执行查询语句，返回OracleDataReader ( 注意：调用该方法后，一定要对SqlDataReader进行Close )
/// </summary>
/// <param name="strSQL">查询语句</param>
/// <returns>OracleDataReader</returns>
public static OracleDataReader ExecuteReader(string SQLString, params OracleParameter[] cmdParms)
{
OracleConnection connection = new OracleConnection(connectionString);
OracleCommand cmd = new OracleCommand();
try
{
PrepareCommand(cmd, connection, null, SQLString, cmdParms);
OracleDataReader myReader = cmd.ExecuteReader(CommandBehavior.CloseConnection);
cmd.Parameters.Clear();
return myReader;
}
catch (System.Data.OracleClient.OracleException e)
{
throw new Exception(e.Message);
}
}
/// <summary>
/// 执行查询语句，返回DataSet
/// </summary>
/// <param name="SQLString">查询语句</param>
/// <returns>DataSet</returns>
public static DataSet Query(string SQLString, params OracleParameter[] cmdParms)
{
using (OracleConnection connection = new OracleConnection(connectionString))
{
OracleCommand cmd = new OracleCommand();
PrepareCommand(cmd, connection, null, SQLString, cmdParms);
using (OracleDataAdapter da = new OracleDataAdapter(cmd))
{
DataSet ds = new DataSet();
try
{
da.Fill(ds, "ds");
cmd.Parameters.Clear();
}
catch (System.Data.OracleClient.OracleException ex)
{
throw new Exception(ex.Message);
}
return ds;
}
}
}
private static void PrepareCommand(OracleCommand cmd, OracleConnection conn, OracleTransaction trans, string cmdText, OracleParameter[] cmdParms)
{
if (conn.State != ConnectionState.Open)
conn.Open();
cmd.Connection = conn;
cmd.CommandText = cmdText;
if (trans != null)
cmd.Transaction = trans;
cmd.CommandType = CommandType.Text;//cmdType;
if (cmdParms != null)
{
foreach (OracleParameter parm in cmdParms)
cmd.Parameters.Add(parm);
}
}
#endregion
#region 存储过程操作
/// <summary>
/// 执行存储过程 返回SqlDataReader ( 注意：调用该方法后，一定要对SqlDataReader进行Close )
/// </summary>
/// <param name="storedProcName">存储过程名</param>
/// <param name="parameters">存储过程参数</param>
/// <returns>OracleDataReader</returns>
public static OracleDataReader RunProcedure(string storedProcName, IDataParameter[] parameters)
{
OracleConnection connection = new OracleConnection(connectionString);
OracleDataReader returnReader;
connection.Open();
OracleCommand command = BuildQueryCommand(connection, storedProcName, parameters);
command.CommandType = CommandType.StoredProcedure;
returnReader = command.ExecuteReader();
connection.Close();
return returnReader;
}
/// <summary>
/// 执行存储过程
/// </summary>
/// <param name="storedProcName">存储过程名</param>
/// <param name="parameters">存储过程参数</param>
/// <param name="tableName">DataSet结果中的表名</param>
/// <returns>DataSet</returns>
public static DataSet RunProcedure(string storedProcName, IDataParameter[] parameters, string tableName)
{
using (OracleConnection connection = new OracleConnection(connectionString))
{
DataSet dataSet = new DataSet();
connection.Open();
OracleDataAdapter sqlDA = new OracleDataAdapter();
sqlDA.SelectCommand = BuildQueryCommand(connection, storedProcName, parameters);
sqlDA.Fill(dataSet, tableName);
connection.Close();
return dataSet;
}
}
/// <summary>
/// 构建 OracleCommand 对象(用来返回一个结果集，而不是一个整数值)
/// </summary>
/// <param name="connection">数据库连接</param>
/// <param name="storedProcName">存储过程名</param>
/// <param name="parameters">存储过程参数</param>
/// <returns>OracleCommand</returns>
private static OracleCommand BuildQueryCommand(OracleConnection connection, string storedProcName, IDataParameter[] parameters)
{
OracleCommand command = new OracleCommand(storedProcName, connection);
command.CommandType = CommandType.StoredProcedure;
foreach (OracleParameter parameter in parameters)
{
command.Parameters.Add(parameter);
}
return command;
}
/// <summary>
/// 执行存储过程，返回影响的行数
/// </summary>
/// <param name="storedProcName">存储过程名</param>
/// <param name="parameters">存储过程参数</param>
/// <param name="rowsAffected">影响的行数</param>
/// <returns></returns>
public static int RunProcedure(string storedProcName, IDataParameter[] parameters, out int rowsAffected)
{
using (OracleConnection connection = new OracleConnection(connectionString))
{
int result;
connection.Open();
OracleCommand command = BuildIntCommand(connection, storedProcName, parameters);
rowsAffected = command.ExecuteNonQuery();
result = (int)command.Parameters["ReturnValue"].Value;
//Connection.Close();
return result;
}
}
/// <summary>
/// 创建 OracleCommand 对象实例(用来返回一个整数值)
/// </summary>
/// <param name="storedProcName">存储过程名</param>
/// <param name="parameters">存储过程参数</param>
/// <returns>OracleCommand 对象实例</returns>
private static OracleCommand BuildIntCommand(OracleConnection connection, string storedProcName, IDataParameter[] parameters)
{
OracleCommand command = BuildQueryCommand(connection, storedProcName, parameters);
command.Parameters.Add(new OracleParameter("ReturnValue",
OracleType.Int32, 4, ParameterDirection.ReturnValue,
false, 0, 0, string.Empty, DataRowVersion.Default, null));
return command;
}
#endregion
}
}
