NLog 正在寫入數據庫，但不是文件

Question

我有這些目標：

<target xsi:type="File" name="myAppLoggerTarget" fileName="${basedir}/logs/${shortdate}.log"
        layout="${longdate} ${uppercase:${level}} ${message}" />
<target xsi:type="Database"
    name="myAppLoggerTarget"
    connectionString="Data Source=R5-4500U\SQLEXPRESS;Initial Catalog=BlogDb;Integrated Security=True;"
    commandText="INSERT INTO Logs(CreatedOn,Message,Level,Exception,StackTrace,Logger,Url) VALUES (@datetime,@msg,@level,@exception,@trace,@logger,@url)">
        <parameter name="@datetime" layout="${date}" />
        <parameter name="@msg" layout="${message}" />
        <parameter name="@level" layout="${level}" />
        <parameter name="@exception" layout="${exception}" />
        <parameter name="@trace" layout="${stacktrace}" />
        <parameter name="@logger" layout="${logger}" />
        <parameter name="@url" layout="${aspnet-request-url}" />
</target>

這條規則：

<logger name="myAppLoggerRules" minlevel="Debug" writeTo="myAppLoggerTarget" />

出於某種原因，當我打電話時： GetLogger("myAppLoggerRules").Debug(message); ，日志只保存到數據庫，不保存到文件。

當我注釋掉數據庫目標時，文件目標工作正常......

Answer 1

我很確定您需要在每個目標上使用唯一的名稱。 所以你的代碼應該是：

<target xsi:type="File" name="file" fileName="${basedir}/logs/${shortdate}.log"
        layout="${longdate} ${uppercase:${level}} ${message}" />
<target xsi:type="Database"
    name="database"
    connectionString="Data Source=R5-4500U\SQLEXPRESS;Initial Catalog=BlogDb;Integrated Security=True;"
    commandText="INSERT INTO Logs(CreatedOn,Message,Level,Exception,StackTrace,Logger,Url) VALUES (@datetime,@msg,@level,@exception,@trace,@logger,@url)">
        <parameter name="@datetime" layout="${date}" />
        <parameter name="@msg" layout="${message}" />
        <parameter name="@level" layout="${level}" />
        <parameter name="@exception" layout="${exception}" />
        <parameter name="@trace" layout="${stacktrace}" />
        <parameter name="@logger" layout="${logger}" />
        <parameter name="@url" layout="${aspnet-request-url}" />
</target>

...

<logger name="myAppLoggerRules" minlevel="Debug" writeTo="file" />
<logger name="myAppLoggerRules" minlevel="Debug" writeTo="database" />