Log4net 自定义字段 写入Oracle 使用ODP.NET Managed驱动

一、环境说明：

开发工具：vs2010   ，数据库：oracle 11g ，版本：log4net的目前最新版本1.2.13.0    ；  Oracle.ManagedDataAccess.dll  Version 4.121.1.0

二、官网dll准备

log4net      http://mirrors.hust.edu.cn/apache//logging/log4net/binaries/log4net-1.2.13-bin-newkey.zip

Oracle.ManagedDataAccess.dll  官网 http://www.oracle.com/technetwork/topics/dotnet/downloads/index.html

三、实现步骤(以个人建立的项目为例子解说)

1、建立项目log4netTest5,把dll放在Lib文件内， 打开项目 引用 把dll 引入项目

2、建立log4net.config 配置文件(周公等网上的达人都详解的很清楚了，我就讲解oracle哪一部分)

注意： <appender name="AdoNetAppender_ORCL" type="log4net.Appender.OracleAppender">
数据驱动

<connectionType value="Oracle.ManagedDataAccess.Client.OracleConnection,Oracle.ManagedDataAccess, Version=4.121.1.0, Culture=neutral, PublicKeyToken=89b483f429c47342" />

数据库连接串

 <connectionString value="Data Source=//localhost:1521/orcl;User ID=user;Password=user;" />
还有

 <commandText value="insert into SECURITY_LOG4NET 
按照自己的实际情况自己修改

<?xml version="1.0" encoding="utf-8" ?>

<configuration>

  <configSections>

    <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net" />

  </configSections>



  <log4net>





    <appender name="AdoNetAppender_ORCL" type="log4net.Appender.OracleAppender">

      <bufferSize value="1"/>

      <connectionType value="Oracle.ManagedDataAccess.Client.OracleConnection,Oracle.ManagedDataAccess, Version=4.121.1.0, Culture=neutral, PublicKeyToken=89b483f429c47342" />

      <connectionString value="Data Source=//localhost:1521/orcl;User ID=user;Password=user;" />

      <commandText value="insert into SECURITY_LOG4NET (LOG_DATE,LOG_LEVEL,LOG_MESSAGE,LOG_EXCEPTION,LOG_LOGGER,LOG_SOURCE,USERID,LOGTYPE)  VALUES (:log_date, :log_level,:log_message, :log_exception, :logger, :source,:USERID,:LOGTYPE)"/>

      <parameter>

        <parameterName value=":log_date" />

        <dbType value="DateTime" />

        <layout type="log4net.Layout.RawTimeStampLayout">

          <conversionPattern value="%d{yyyy/MM/dd HH:mm:ss}" />

        </layout>

      </parameter>

      <parameter>

        <parameterName value=":log_level" />

        <dbType value="String" />

        <size value="10" />

        <layout type="log4net.Layout.PatternLayout">

          <conversionPattern value="%level" />

        </layout>

      </parameter>

      <parameter>

        <parameterName value=":log_message" />

        <dbType value="String" />

        <size value="4000" />

        <layout type="log4net.Layout.PatternLayout">

          <conversionPattern value="%m" />

        </layout>

      </parameter>

      <parameter>

        <parameterName value=":log_exception" />

        <dbType value="String" />

        <size value="4000" />

        <layout type="log4net.Layout.PatternLayout">

          <conversionPattern value="%exception" />

        </layout>

      </parameter>

      <parameter>

        <parameterName value=":logger" />

        <dbType value="String" />

        <size value="255" />

        <layout type="log4net.Layout.PatternLayout">

          <conversionPattern value="%logger" />

        </layout>

      </parameter>

      <parameter>

        <parameterName value=":source" />

        <dbType value="String" />

        <size value="1000" />

        <layout type="log4net.Layout.PatternLayout">

          <conversionPattern value="%file:%line" />

        </layout>

      </parameter>

      <parameter>

        <parameterName value=":USERID" />

        <dbType value="String" />

        <size value="100" />

        <layout type="Log4NetToDatabase.CustomLayout">

          <conversionPattern value="%USERID" />

        </layout>

      </parameter>

      <parameter>

        <parameterName value=":LOGTYPE" />

        <dbType value="String" />

        <size value="100" />

        <layout type="Log4NetToDatabase.CustomLayout">

          <conversionPattern value="%LOGTYPE" />

        </layout>

      </parameter>

    </appender>





    <root>

      <level value ="ALL"/>

      <appender-ref ref="AdoNetAppender_ORCL"/>

    </root>



   

  </log4net>

</configuration>

　　3、自己实现 OracleAppender.cs 和OracleAppenderParameter.cs

（我直接取自http://www.cnblogs.com/hnsongbiao/p/4216147.html#commentform）

  1 public class OracleAppender : BufferingAppenderSkeleton

  2     {

  3         // Fields

  4         private static readonly Type declaringType = typeof(AdoNetAppender);

  5         private string m_commandText;

  6         private CommandType m_commandType = CommandType.Text;

  7         private string m_connectionString;

  8         private string m_connectionType;

  9         private OracleCommand m_dbCommand;

 10         private OracleConnection m_dbConnection;

 11         protected ArrayList m_parameters = new ArrayList();

 12         private bool m_reconnectOnError = false;

 13         private SecurityContext m_securityContext;

 14         protected bool m_usePreparedCommand;

 15         private bool m_useTransactions = true;

 16 

 17         // Methods

 18         public override void ActivateOptions()

 19         {

 20             base.ActivateOptions();

 21             this.m_usePreparedCommand = (this.m_commandText != null) && (this.m_commandText.Length > 0);

 22             if (this.m_securityContext == null)

 23             {

 24                 this.m_securityContext = SecurityContextProvider.DefaultProvider.CreateSecurityContext(this);

 25             }

 26             this.InitializeDatabaseConnection();

 27             this.InitializeDatabaseCommand();

 28         }

 29 

 30         public void AddParameter(OracleAppenderParameter parameter)

 31         {

 32             this.m_parameters.Add(parameter);

 33         }

 34 

 35         protected virtual string GetLogStatement(LoggingEvent logEvent)

 36         {

 37             if (this.Layout == null)

 38             {

 39                 this.ErrorHandler.Error("ADOAppender: No Layout specified.");

 40                 return "";

 41             }

 42             StringWriter writer = new StringWriter(CultureInfo.InvariantCulture);

 43             this.Layout.Format(writer, logEvent);

 44             return writer.ToString();

 45         }

 46 

 47         private void InitializeDatabaseCommand()

 48         {

 49             if ((this.m_dbConnection != null) && this.m_usePreparedCommand)

 50             {

 51                 try

 52                 {

 53                     this.m_dbCommand = this.m_dbConnection.CreateCommand();

 54                     this.m_dbCommand.CommandText = this.m_commandText;

 55                     this.m_dbCommand.CommandType = this.m_commandType;

 56                 }

 57                 catch (Exception exception)

 58                 {

 59                     this.ErrorHandler.Error("Could not create database command [" + this.m_commandText + "]", exception);

 60                     if (this.m_dbCommand != null)

 61                     {

 62                         try

 63                         {

 64                             this.m_dbCommand.Dispose();

 65                         }

 66                         catch

 67                         {

 68                         }

 69                         this.m_dbCommand = null;

 70                     }

 71                 }

 72                 if (this.m_dbCommand != null)

 73                 {

 74                     try

 75                     {

 76                         foreach (OracleAppenderParameter parameter in this.m_parameters)

 77                         {

 78                             try

 79                             {

 80                                 parameter.Prepare(this.m_dbCommand);

 81                             }

 82                             catch (Exception exception2)

 83                             {

 84                                 this.ErrorHandler.Error("Could not add database command parameter [" + parameter.ParameterName + "]", exception2);

 85                                 throw;

 86                             }

 87                         }

 88                     }

 89                     catch

 90                     {

 91                         try

 92                         {

 93                             this.m_dbCommand.Dispose();

 94                         }

 95                         catch

 96                         {

 97                         }

 98                         this.m_dbCommand = null;

 99                     }

100                 }

101                 if (this.m_dbCommand != null)

102                 {

103                     try

104                     {

105                         this.m_dbCommand.Prepare();

106                     }

107                     catch (Exception exception3)

108                     {

109                         this.ErrorHandler.Error("Could not prepare database command [" + this.m_commandText + "]", exception3);

110                         try

111                         {

112                             this.m_dbCommand.Dispose();

113                         }

114                         catch

115                         {

116                         }

117                         this.m_dbCommand = null;

118                     }

119                 }

120             }

121         }

122 

123         private void InitializeDatabaseConnection()

124         {

125             try

126             {

127                 this.m_dbConnection = new OracleConnection();

128                 this.m_dbConnection.ConnectionString = this.m_connectionString;

129                 using (this.SecurityContext.Impersonate(this))

130                 {

131                     this.m_dbConnection.Open();

132                 }

133             }

134             catch (Exception exception)

135             {

136                 this.ErrorHandler.Error("Could not open database connection [" + this.m_connectionString + "]", exception);

137                 this.m_dbConnection = null;

138             }

139         }

140 

141         protected override void OnClose()

142         {

143             base.OnClose();

144             if (this.m_dbCommand != null)

145             {

146                 this.m_dbCommand.Dispose();

147                 this.m_dbCommand = null;

148             }

149             if (this.m_dbConnection != null)

150             {

151                 this.m_dbConnection.Close();

152                 this.m_dbConnection = null;

153             }

154         }

155 

156         protected virtual Type ResolveConnectionType()

157         {

158             Type type;

159             try

160             {

161                 type = SystemInfo.GetTypeFromString(this.m_connectionType, true, false);

162             }

163             catch (Exception exception)

164             {

165                 this.ErrorHandler.Error("Failed to load connection type [" + this.m_connectionType + "]", exception);

166                 throw;

167             }

168             return type;

169         }

170 

171         protected override void SendBuffer(LoggingEvent[] events)

172         {

173             if (this.m_reconnectOnError && ((this.m_dbConnection == null) || (this.m_dbConnection.State != ConnectionState.Open)))

174             {

175                 LogLog.Debug(declaringType, "OracleAppender: Attempting to reconnect to database. Current Connection State: " + ((this.m_dbConnection == null) ? "<null>" : this.m_dbConnection.State.ToString()));

176                 this.InitializeDatabaseConnection();

177                 this.InitializeDatabaseCommand();

178             }

179             if ((this.m_dbConnection != null) && (this.m_dbConnection.State == ConnectionState.Open))

180             {

181                 if (this.m_useTransactions)

182                 {

183                     OracleTransaction dbTran = null;

184                     try

185                     {

186                         dbTran = this.m_dbConnection.BeginTransaction();

187                         this.SendBuffer(dbTran, events);

188                         dbTran.Commit();

189                     }

190                     catch (Exception exception)

191                     {

192                         if (dbTran != null)

193                         {

194                             try

195                             {

196                                 dbTran.Rollback();

197                             }

198                             catch (Exception)

199                             {

200                             }

201                         }

202                         this.ErrorHandler.Error("Exception while writing to database", exception);

203                     }

204                 }

205                 else

206                 {

207                     this.SendBuffer(null, events);

208                 }

209             }

210         }

211 

212         protected virtual void SendBuffer(OracleTransaction dbTran, LoggingEvent[] events)

213         {

214             if (!this.m_usePreparedCommand)

215             {

216                 throw new NotImplementedException();

217             }

218             if (this.m_dbCommand != null)

219             {

220                 ArrayList list = null;

221                 foreach (OracleAppenderParameter parameter in this.m_parameters)

222                 {

223                     list = new ArrayList();

224                     OracleParameter parameter2 = this.m_dbCommand.Parameters[parameter.ParameterName];

225                     foreach (LoggingEvent event2 in events)

226                     {

227                         object obj2 = parameter.Layout.Format(event2);

228                         if (obj2.ToString() == "(null)")

229                         {

230                             obj2 = DBNull.Value;

231                         }

232                         list.Add(obj2);

233                     }

234                     parameter2.Value = list.ToArray();

235                 }

236                 this.m_dbCommand.ArrayBindCount = events.Length;

237                 this.m_dbCommand.ExecuteNonQuery();

238             }

239         }

240 

241         // Properties

242         public string CommandText

243         {

244             get

245             {

246                 return this.m_commandText;

247             }

248             set

249             {

250                 this.m_commandText = value;

251             }

252         }

253 

254         public CommandType CommandType

255         {

256             get

257             {

258                 return this.m_commandType;

259             }

260             set

261             {

262                 this.m_commandType = value;

263             }

264         }

265 

266         protected OracleConnection Connection

267         {

268             get

269             {

270                 return this.m_dbConnection;

271             }

272             set

273             {

274                 this.m_dbConnection = value;

275             }

276         }

277 

278         public string ConnectionString

279         {

280             get

281             {

282                 return this.m_connectionString;

283             }

284             set

285             {

286                 this.m_connectionString = value;

287             }

288         }

289 

290         public bool ReconnectOnError

291         {

292             get

293             {

294                 return this.m_reconnectOnError;

295             }

296             set

297             {

298                 this.m_reconnectOnError = value;

299             }

300         }

301 

302         public SecurityContext SecurityContext

303         {

304             get

305             {

306                 return this.m_securityContext;

307             }

308             set

309             {

310                 this.m_securityContext = value;

311             }

312         }

313 

314         public bool UseTransactions

315         {

316             get

317             {

318                 return this.m_useTransactions;

319             }

320             set

321             {

322                 this.m_useTransactions = value;

323             }

324         }

325     }

View Code

public class OracleAppenderParameter

    {

        // Fields

        private DbType m_dbType;

        private bool m_inferType = true;

        private IRawLayout m_layout;

        private string m_parameterName;

        private byte m_precision = 0;

        private byte m_scale = 0;

        private int m_size = 0;



        // Methods

        public virtual void FormatValue(OracleCommand command, LoggingEvent loggingEvent)

        {

            OracleParameter parameter = command.Parameters[this.m_parameterName];

            parameter.Value = this.Layout.Format(loggingEvent);

        }



        public virtual void Prepare(OracleCommand command)

        {

            OracleParameter param = command.CreateParameter();

            param.ParameterName = this.m_parameterName;

            if (!this.m_inferType)

            {

                param.DbType = this.m_dbType;

            }

            if (this.m_precision != 0)

            {

                param.Precision = this.m_precision;

            }

            if (this.m_scale != 0)

            {

                param.Scale = this.m_scale;

            }

            if (this.m_size != 0)

            {

                param.Size = this.m_size;

            }

            command.Parameters.Add(param);

        }



        // Properties

        public DbType DbType

        {

            get

            {

                return this.m_dbType;

            }

            set

            {

                this.m_dbType = value;

                this.m_inferType = false;

            }

        }



        public IRawLayout Layout

        {

            get

            {

                return this.m_layout;

            }

            set

            {

                this.m_layout = value;

            }

        }



        public string ParameterName

        {

            get

            {

                return this.m_parameterName;

            }

            set

            {

                this.m_parameterName = value;

            }

        }



        public byte Precision

        {

            get

            {

                return this.m_precision;

            }

            set

            {

                this.m_precision = value;

            }

        }



        public byte Scale

        {

            get

            {

                return this.m_scale;

            }

            set

            {

                this.m_scale = value;

            }

        }



        public int Size

        {

            get

            {

                return this.m_size;

            }

            set

            {

                this.m_size = value;

            }

        }

    }

View Code

4、实现CustomLayout.cs
ReflectionPatternConverter.cs文件

我浏览 誉满中华 博主的文章时，就想拿来就用呀，可惜博主太忙了 留言没有回复， 而且又急用用就自己下载了源码 参照源码和http://blog.csdn.net/kkkkkxiaofei/article/details/12946913 自己实现了一下，如有问题请留言指出

自定义字段时 一定要 先在 ReflectionPatternConverter.cs 中把自定义字段 映射好

然后 CustomLayout.cs 中 

s_globalRulesRegistry = new Hashtable(2);
s_globalRulesRegistry.Add("USERID", typeof(USERIDPatternConverter));
s_globalRulesRegistry.Add("LOGTYPE", typeof(LOGTYPEPatternConverter));

绑定,有多少个自定义字段 就要在这两个cs中对应设置好，layout type 也要指定对地址

5、配置

Global.asax中 Application_Start里添加

 log4net.Config.XmlConfigurator.ConfigureAndWatch(new System.IO.FileInfo(Server.MapPath("~") + "\\log4net.config"));

AssemblyInfo.cs 中 添加

[assembly: log4net.Config.XmlConfigurator(ConfigFile = @"log4net.config", Watch = true)]

6、测试一下

简单写个log。cs

private static ILog logOracle = log4net.LogManager.GetLogger("LogOracle");

public static void OracleInfo(Model.SECURITY_LOG4NET logMessage)
{
logOracle.Info(logMessage);
}

 

 

//测试写入
Model.SECURITY_LOG4NET model = new Model.SECURITY_LOG4NET();
model.USERID = System.Guid.NewGuid().ToString();
model.LOGTYPE = "Oracle.ManagedDataAccess.Client";
log.OracleInfo(model);

成功写入！

源码给大家做个参考：  http://pan.baidu.com/s/1nUFvS   提取码     t45u

本文参考文章：

1、 http://www.cnblogs.com/lightnear/archive/2013/06/04/3117340.html   没有实现自定义 用 Oracle.DataAccess 驱动的

2、http://www.cnblogs.com/hnsongbiao/p/4216147.html#commentform

3、http://stackoverflow.com/questions/29614827/log4net-appender-adonetappender-connectiontype-oracle-manageddataaccess-client

4、http://blog.csdn.net/kkkkkxiaofei/article/details/12946913

5、http://zhoufoxcn.blog.51cto.com/792419/429988/