📄 sampleservlet.java

📁 java高级使用教程全书一共分六章
💻 JAVA
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// SampleServlet - trivial servlet
//
// Copyright (C) 1996 by Jef Poskanzer <jef@acme.com>.  All rights reserved.
//
// 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.
//
// 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.
//
// Visit the ACME Labs Java page for up-to-date versions of this and other
// fine Java utilities: http://www.acme.com/java/

package Acme.Serve;

import java.io.*;
import Acme.Serve.servlet.*;
import Acme.Serve.servlet.http.*;

/// Trivial servlet.
// <P>
// <A HREF="/resources/classes/Acme/Serve/SampleServlet.java">Fetch the software.</A><BR>
// <A HREF="/resources/classes/Acme.tar.gz">Fetch the entire Acme package.</A>

public class SampleServlet extends HttpServlet
    {

    /// Returns a string containing information about the author, version, and
    // copyright of the servlet.
    public String getServletInfo()
	{
	return "trivial servlet";
	}

    /// Services a single request from the client.
    // @param req the servlet request
    // @param req the servlet response
    // @exception ServletException when an exception has occurred
    public void service( HttpServletRequest req, HttpServletResponse res ) throws ServletException, IOException
	{
	log( "called" );
	res.setStatus( HttpServletResponse.SC_OK );
	res.setContentType( "text/html" );
	ServletOutputStream p = res.getOutputStream();
	p.println( "<HTML><HEAD>" );
	p.println( "<TITLE>Sample Servlet Output</TITLE>" );
	p.println( "</HEAD><BODY>" );
	p.println( "<H2>Sample Servlet Output</H2>" );
	p.println( "<P>Output from a sample servlet." );
	p.println( "</BODY></HTML>" );
	p.flush();
	p.close();
	}

    }
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