三分钟集成elmah xml 格式日志到mvc站点

1.通过nuget安装Elmah

ELMAH on XML Log 会自动在web.config 文件中添加配置内容，默认不允许远程访问，日志访问路径是 Elmah.axd,不记录500错误

2.修改配置文件

增加500的异常记录，允许远程访问

 <elmah>

    <!--

        See http://code.google.com/p/elmah/wiki/SecuringErrorLogPages for

        more information on remote access and securing ELMAH.

    -->

    <security allowRemoteAccess="true" />

    <errorLog type="Elmah.XmlFileErrorLog, Elmah" logPath="~/App_Data/Elmah.Errors" />

    <errorFilter>

      <test>

        <equal binding="HttpStatusCode" value="404" type="Int32" />

        <equal binding="HttpStatusCode" value="500" type="Int32" />

      </test>

    </errorFilter>

  </elmah>

修改访问路径

<location path="log.axd" inheritInChildApplications="false">

    <system.web>

      <httpHandlers>

        <add verb="POST,GET,HEAD" path="log.axd" type="Elmah.ErrorLogPageFactory, Elmah" />

      </httpHandlers>

      <!--

        See http://code.google.com/p/elmah/wiki/SecuringErrorLogPages for

        more information on using ASP.NET authorization securing ELMAH.

      <authorization>

        <allow roles="admin" />

        <deny users="*" />

      </authorization>

      -->

    </system.web>

    <system.webServer>

      <handlers>

        <add name="ELMAH" verb="POST,GET,HEAD" path="log.axd" type="Elmah.ErrorLogPageFactory, Elmah" preCondition="integratedMode" />

      </handlers>

    </system.webServer>

  </location>

在nuget上有很多ELMAH的扩展可以存储为其它格式。