AntApache ConfigurationAppleScriptCC#C++Cold FusionDelphi PascalFlash ActionScriptHTML / CSSJSP / JSTL / JSFJavaJavascript / AjaxObjective-C CocoaPHPPerlPythonRuby / RailsSQLUnix / ShellXML-SchemaXSLT / XPATHDirector LingoLego MindstormsObjective-C SwarmPIC assembly   Whole Words   Literal Phrase       Examples

Source code below from: Java Enterprise in a Nutshell (In a Nutshell) By Jim Farley, William Crawford, Prakash Malani, John Norman, and Justin Gehtland Published 22 November, 2005 Average rating       Powells     Alibris

package com.oreilly.jent.servlets;

/**
 * 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.
 */

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.UnavailableException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class FileServlet extends HttpServlet {

  public void doGet(HttpServletRequest req, HttpServletResponse resp)
    throws ServletException, IOException {

    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(  );
  }
}