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/

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原文地址：https://www.cnblogs.com/skyapplezhao/p/4491393.html

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

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