FileDocCategorySizeDatePackage
FileServlet.javaAPI DocExample2634Thu Dec 15 20:47:34 GMT 2005com.oreilly.jent.servlets

FileServlet

public class FileServlet extends HttpServlet
In general, you may use the code in this book in your programs and documentation. You do not need to contact us for permission unless you're reproducing a significant portion of the code. For example, writing a program that uses several chunks of code from this book does not require permission. Selling or distributing a CD-ROM of examples from O'Reilly books does require permission. Answering a question by citing this book and quoting example code does not require permission. Incorporating a significant amount of example code from this book into your product's documentation does require permission. We appreciate, but do not require, attribution. An attribution usually includes the title, author, publisher, and ISBN. For example: "Java Enterprise in a Nutshell, Third Edition, by Jim Farley and William Crawford with Prakash Malani, John G. Norman, and Justin Gehtland. Copyright 2006 O'Reilly Media, Inc., 0-596-10142-2." If you feel your use of code examples falls outside fair use or the permission given above, feel free to contact us at permissions@oreilly.com.

Fields Summary
Constructors Summary
Methods Summary
public voiddoGet(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse resp)


    File r;
    FileReader fr;
    BufferedReader br;
    try {
      r = new File(req.getParameter("filename"));
      fr = new FileReader(r);
      br = new BufferedReader(fr);
      if(!r.isFile(  )) {  // Must be a directory or something else
        resp.sendError(HttpServletResponse.SC_NOT_FOUND);
        return;
      }
    }
    catch (FileNotFoundException e) {
      resp.sendError(HttpServletResponse.SC_NOT_FOUND);
      return;
    }
    catch (SecurityException se) { // Be unavailable permanently
      throw(new UnavailableException("Servlet lacks appropriate privileges."));
    }

    resp.setContentType("text/html");
    PrintWriter out = resp.getWriter(  );
    String text;
    while( (text = br.readLine(  )) != null)
      out.println(text);

    br.close(  );