/*
* Copyright (c) Ian F. Darwin, http://www.darwinsys.com/, 1996-2002.
* All rights reserved. Software written by Ian F. Darwin and others.
* $Id: BrokenServlet.java,v 1.5 2004/04/25 20:05:19 ian Exp $
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Ian F. Darwin.
* 4. Neither the name of the author nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* Java, the Duke mascot, and all variants of Sun's Java "steaming coffee
* cup" logo are trademarks of Sun Microsystems. Sun's, and James Gosling's,
* pioneering role in inventing and promulgating (and standardizing) the Java
* language and environment is gratefully acknowledged.
*
* The pioneering role of Dennis Ritchie and Bjarne Stroustrup, of AT&T, for
* inventing predecessor languages C and C++ is also gratefully acknowledged.
*/
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
/*
* BrokenServlet -- so where is it broken, anyway?
* Servlet containers normally run a single instance of Servlets
* with multiple Threads running in them; think what might happen
* to the "out" field with multiple threads running.
*
* @version $Id: BrokenServlet.java,v 1.5 2004/04/25 20:05:19 ian Exp $
*/
public class BrokenServlet extends HttpServlet
{
protected PrintWriter out;
/** Called in response to a GET request (data encoded in the URL) */
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html");
out = response.getWriter();
// Simulate a database lookup
int result = 42;
print(result);
}
protected void print(int result)
{
out.println("<!DOCTYPE html PUBLIC " +
"\"-//W3C//DTD XHTML 1.0 Transitional//EN\"\n" +
"\"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\"\n" +
">");
out.println("<html>");
out.println("<head><title>Servlet Output</title></head>");
out.println("<body>");
out.println("<h1>Results</h1>");
out.println("<p>The result is " + result + "</p>");
out.println("</body>");
out.println("</html>");
out.close();
}
}
|
