WebService写系统日志

?

???? string sourcename = "ycsmart";
??????? EventLogEntryType errotype = EventLogEntryType.SuccessAudit;
??????? try
??????? {
??????????? EventLog mylog = new EventLog();
??????????? if (!EventLog.SourceExists(sourcename))
??????????? {
??????????????? EventLog.CreateEventSource(sourcename,sourcename);
??????????? }

??????????? mylog.Source = sourcename;

??????????? mylog.MaximumKilobytes = 1024 * 20;

??????????? mylog.ModifyOverflowPolicy(OverflowAction.OverwriteAsNeeded,30);

??????????? mylog.WriteEntry(sMsg,errotype);
??????? }
??????? catch (Exception ex)
??????? {
??????????? //MessageBox.Show(ex.Message);
??????? }

?

ASP.Net默认情况下，是没有写系统日志的权限的。要在ASP.Net中写系统日志，首先我们要先有其权限。我们可以通过设置或修改注册表的权限来解决。

方法1：“开始->运行”,输入命令，“regedt32”,找到“System->CurrentControlSet->Services->Eventlog”,选择“安全->权限->添加”，然后找到本机的“AspNet”用户，加进来并且给读取权限就好了，加进来后目录中会多一个“aspnet_wp account”

方法2：在注册表：HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServiceEventLog增加User的完全操纵权限

using System;
using System.Diagnostics;
using System.Text;

namespace CorePlus.Framework.Utility
{
?/// <summary>
?///?写日志的CLASS
?/// </summary>
?public class LogUtility
?{
??public enum EVENT
??{
???/// <summary>重大错误</summary>
???EVENT_ERROR,
???/// <summary>操作失败</summary>
???EVENT_FAILUREAUDIT,
???/// <summary>一般信息</summary>
???EVENT_INFORMATION,
???/// <summary>有效的,成功的操作</summary>
???EVENT_SUCCESSAUDIT,
???/// <summary>警告</summary>
???EVENT_WARNING,
??}

??private static TextWriterTraceListener listner = null;

??/// <summary>
??///?构造函数
??/// </summary>
??public LogUtility () {}

??/// <param name="loginID">登录ID</param>
??/// <param name="screenID">画面ID</param>
??/// <param name="level">警告级别</param>
??/// <param name="message">日志信息</param>
??public static void Logging (
???string loginID,
???string screenID,
???EVENT level,
???string message )
??{
???//?变量定义
???StringBuilder??outputMessage?= null;?//?输出的信息
???string????targetLevelString?= null;
???EventLogEntryType Eventtype = new EventLogEntryType();

???switch (level)
???{
????case EVENT.EVENT_ERROR:
?????Eventtype = EventLogEntryType.Error;
?????break;

????case EVENT.EVENT_FAILUREAUDIT:
?????Eventtype = EventLogEntryType.FailureAudit;
?????break;

????case EVENT.EVENT_INFORMATION:
?????Eventtype = EventLogEntryType.Information;
?????break;

????case EVENT.EVENT_SUCCESSAUDIT:
?????Eventtype = EventLogEntryType.SuccessAudit;
?????break;

????case EVENT.EVENT_WARNING:
?????Eventtype = EventLogEntryType.Warning;
?????break;
???}

???//?日志信息的拼合
???outputMessage = MakeMessage( loginID,screenID,targetLevelString,message );

???//?写日志
???Logging( Eventtype,outputMessage.ToString() );
??}

??/// <summary>
??///?向日志管理器写日志
??/// </summary>
??/// <param name="level">错误级别</param>
??/// <param name="message">输出的信息</param>
??private static void Logging ( EventLogEntryType level,string message )
??{
???//?变量定义
???string??logName??= null;?//?日志名
???string??machineName?= null;?//?机器名
???string??sourceName?= null;?// SourceName
???EventLog?eventLog?= null;?// EventLog

???logName??= "Eventlog2";??//?日志名
???machineName?= ".";?// 机器名
???sourceName?= "Eventlog2";?// SourceName

???eventLog = new EventLog( logName,machineName,sourceName );
???eventLog.WriteEntry( message,level );
???eventLog = null;
??}

??/// <summary>
??///?日志最终拼合
??/// </summary>
??/// <param name="loginID">登录ID</param>
??/// <param name="screenID">画面ID</param>
??/// <param name="levelString">错误级别</param>
??/// <param name="message">日志信息</param>
??/// <returns>输出的日志信息</returns>
??private static StringBuilder MakeMessage (
???string loginID,
???string levelString,
???string message )
??{
???//?变量定义
???StringBuilder retMessage = new StringBuilder();

???retMessage.Append( "【登录ID】" );
???retMessage.Append( loginID );
???retMessage.Append( "n【画面ID】" );
???retMessage.Append( screenID );
???retMessage.Append( "n【错误级别】" );
???retMessage.Append( levelString );
???retMessage.Append( "n【错误信息】n" );
???retMessage.Append( message );

???return retMessage;
????}
??}
}

// 在FORM中输出日志
??private void button1_Click(object sender,System.EventArgs e)
??{
???LogUtility.Logging( "bbbbbb","22222222",LogUtility.EVENT.EVENT_ERROR,"3333333" );
??}

运行完程序后打开日志管理器看看~~~~~~~~~怎么样?不错吧,呵呵.

另一个方法