IIS运行时日志记录

Question

I started a new, from scratch, MVC4 web application.

I added my two lines of code into the 'About' Controller.

System.Diagnostics.Debug.WriteLine("HELLO WORLD - debug");
System.Diagnostics.Trace.WriteLine("HELLO WORLD - trace");

I ran the site in VS/Express and hit the 'About' page. In the run-time Output (Ctrl-Alt-O)/Debug window I see my lines of code working.

Next close VS & I stand the site up in real IIS & hit the 'About' page.

Where do I go and find the diagnostic output? Because it isn't in the inetpub/logs or Event Viewer.

I post a much more extensive version of this question elsewhere. I'll be deleting one of these two once I get to the bottom of this answer.

Answer 1

-- web.config I tacked it onto the end/just inside the /configuration. & as shown designated file is be created & written to in the root of the web application---

  <system.diagnostics>  
    <trace autoflush="false
    " indentsize="4">  
      <listeners>  
        <add name="myListener" type="System.Diagnostics.TextWriterTraceListener" initializeData="TextWriterOutput.log" />  
        <remove name="Default" />  
      </listeners>  
    </trace>  
  </system.diagnostics>  

---

In your code. Any of these three will log to the designated file. But you HAVE to ...Trace.Flush(). autoflush=true appears to not change help anything.

System.Diagnostics.Debug.WriteLine("HELLO WORLD ~ debug");
//System.Diagnostics.Trace.WriteLine("HELLO WORLD ~ trace");
//System.Diagnostics.Trace.TraceInformation("HELLO WORLD ~ traceInfo");
System.Diagnostics.Trace.Flush();

---