43 lines
1.6 KiB
Java
43 lines
1.6 KiB
Java
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An included servlet
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package com.ack.web.servlet;
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import java.io.IOException;
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import java.io.PrintWriter;
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import javax.servlet.ServletException;
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import javax.servlet.http.HttpServlet;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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public class AnIncludedServlet extends HttpServlet {
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public void doGet( HttpServletRequest req, HttpServletResponse res )
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throws ServletException, IOException {
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PrintWriter pw = res.getWriter();
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/**
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* note that a servlet that has been included within another
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* servlet has access to both the original request uri, servlet
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* path, path info, context path and query string through the
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* HttpServletRequest object.
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*
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* However it also has access to these values that can be different
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* depending on how the servlet include was dispatched. The servlet
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* engine gives you access to these though request attributes as
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* demonstrated before.
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*/
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pw.println( "<h1>The Included Servlet</h1>" );
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pw.println( "<br>request uri: " +
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req.getAttribute( "javax.servlet.include.request_uri" ) );
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pw.println( "<br>context path: " +
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req.getAttribute( "javax.servlet.include.context_path" ) );
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pw.println( "<br>servlet path: " +
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req.getAttribute( "javax.servlet.include.servlet_path" ) );
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pw.println( "<br>path info: " +
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req.getAttribute( "javax.servlet.include.path_info" ) );
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pw.println( "<br>query string: " +
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req.getAttribute( "javax.servlet.include.query_string" ) );
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}
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}
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