ASP.NET Compiler

I'm trying to make an online compiler for java using ASP.NET C#


Process p=new Process();
p.StartInfo.FileName = "C:\\Program files\\Java\\bin\\javac.exe";
p.StartInfo.UseShellExecute = false;
p.StartInfo.Arguments = "C:\\Hello.java";
p.StartInfo.RedirectStandardInput = true;
p.StartInfo.CreateNoWindow = true;
p.StartInfo.RedirectStandardOutput = true;
p.StartInfo.CreateNoWindow = true;
p.Start();
p.StandardOutput.ReadToEnd();
p.WaitForExit();

I run javac.exe to compile Hello.java, but the process isn't allowed by ASP.NET to write Hello.class to disk

But on doing it manually through cmd.exe without using ASP.NET or progmatically using C# only it runs perfectly

Can you help me make an online java compiler using ASP.NET or PHP for compiling Algorithmic assignments?

To get this to work, you'd need to prompt the client to download the file from the server to the local machine. The latter would, of course, need to have the Java runtime installed in order to run the .class file.

The code to prompt the client to download the file would be something like this:

   string fileName = "Hello.class";

   string filePath = "C:/Hello.class"; // or wherever it's saved on the server

   Response.ClearContent();

   Response.ClearHeaders();

   Response.ContentType = "application/java";

   Response.AppendHeader("Content-Disposition", "attachment; filename=" + fileName + ";");

   Response.TransmitFile(filePath);

   Response.End();