C#连接Oracle数据库基本类

C#用来连接oracle数据库的基本类：

  1 using System;
  2 using System.Collections.Generic;
  3 using System.Linq;
  4 using System.Text;
  5 using System.Configuration;
  6 using System.Data;
  7 using Oracle.DataAccess.Client;
  8
  9 namespace DLL.Base
 10 {
 11     /// <summary>
 12     /// oracle数据库基础类
 13     /// </summary>
 14     public class OracleDBContent
 15     {
 16         #region 私有
 17         #region 私有属性
 18         /// <summary>
 19         /// 获取数据库连接字符串
 20         /// </summary>
 21         //private static string _connectstring = "Data Source=(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=10.0.36.10)(PORT=1521))(CONNECT_DATA=(SERVICE_NAME=HYP)));User Id=xorder;Password=prod_xo_2015;";
 22         private static string _connectstring = ConfigurationManager.ConnectionStrings["OraConn"].ConnectionString;
 23         #endregion
 24
 25         #region 私有方法
 26         /// <summary>
 27         /// 获取数据（查询）
 28         /// </summary>
 29         /// <param name="sql">要执行的SQL语句</param>
 30         /// <returns></returns>
 31         private DataSet _GET(string sql)
 32         {
 33             try
 34             {
 35                 DataSet dt = new DataSet();
 36                 OracleConnection connect = new OracleConnection(_connectstring);
 37                 connect.Open();
 38                 OracleDataAdapter db = new OracleDataAdapter(sql, connect);
 39                 db.Fill(dt);
 40                 connect.Close();
 41                 return dt;
 42             }
 43             catch (Exception ex)
 44             {
 45                 throw new Exception(ex.Message);
 46             }
 47         }
 48
 49         /// <summary>
 50         /// 执行SQl语句（增、删、改）
 51         /// </summary>
 52         /// <param name="sql">要执行的SQl语句</param>
 53         /// <returns></returns>
 54         private bool _EXCUTE(string sql)
 55         {
 56             try
 57             {
 58                 OracleConnection connect = new OracleConnection(_connectstring);
 59                 OracleCommand cmd = new OracleCommand();
 60                 cmd.Connection = connect;
 61                 cmd.CommandText = sql;
 62                 connect.Open();
 63                 cmd.ExecuteNonQuery();
 64                 connect.Close();
 65                 return true;
 66             }
 67             catch (Exception ex)
 68             {
 69                 throw new Exception(ex.Message);
 70             }
 71         }
 72         #endregion
 73         #endregion
 74
 75         #region 公共方法
 76         /// <summary>
 77         /// 查询
 78         /// </summary>
 79         /// <param name="sql">数据库查询语句</param>
 80         /// <returns></returns>
 81         public virtual DataSet GetData(string sql)
 82         {
 83             try
 84             {
 85                 string sqlstr = sql;
 86                 return _GET(sqlstr);
 87             }
 88             catch (Exception ex)
 89             {
 90                 throw new Exception(ex.Message);
 91             }
 92         }
 93
 94         /// <summary>
 95         /// 新增
 96         /// </summary>
 97         /// <param name="sql">新增语句</param>
 98         /// <returns></returns>
 99         public virtual bool Insert(string sql)
100         {
101             try
102             {
103                 return _EXCUTE(sql);
104             }
105             catch (Exception ex)
106             {
107                 throw new Exception(ex.Message);
108             }
109         }
110
111         /// <summary>
112         /// 删除
113         /// </summary>
114         /// <param name="sql">删除语句</param>
115         /// <returns></returns>
116         public virtual bool Delete(string sql)
117         {
118             try
119             {
120                 return _EXCUTE(sql);
121             }
122             catch (Exception ex)
123             {
124                 throw new Exception(ex.Message);
125             }
126         }
127
128         /// <summary>
129         /// 更新
130         /// </summary>
131         /// <param name="sql">更新语句</param>
132         /// <returns></returns>
133         public virtual bool Update(string sql)
134         {
135             try
136             {
137                 return _EXCUTE(sql);
138             }
139             catch (Exception ex)
140             {
141                 throw new Exception(ex.Message);
142             }
143         }
144         #endregion
145     }
146 }

(Web.config或App.config)配置文件中数据库连接的配置：

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <configuration>
 3   <connectionStrings>
 4     <!--测试数据库-->
 7     <add name="OraConn" connectionString="Data Source=(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.1.172)(PORT=1521))(CONNECT_DATA=(SERVICE_NAME=Test)));User Id=sa;Password=test123;"/>
 9   </connectionStrings>
10   <system.web>
11     <compilation debug="true" targetFramework="4.0" />
12   </system.web>
13   <system.serviceModel>
14     <behaviors>
15       <serviceBehaviors>
16         <behavior>
17           <!-- 为避免泄漏元数据信息，请在部署前将以下值设置为 false 并删除上面的元数据终结点 -->
18           <serviceMetadata httpGetEnabled="true"/>
19           <!-- 要接收故障异常详细信息以进行调试，请将以下值设置为 true。在部署前设置为 false 以避免泄漏异常信息 -->
20           <serviceDebug includeExceptionDetailInFaults="false"/>
21         </behavior>
22       </serviceBehaviors>
23     </behaviors>
24     <serviceHostingEnvironment multipleSiteBindingsEnabled="true" />
25   </system.serviceModel>
26  <system.webServer>
27     <modules runAllManagedModulesForAllRequests="true"/>
28   </system.webServer>
29
30 </configuration>