Servlet Mapping

We can call "servlet mapping" with the method to manipulate address in address bar in your browser,you can use http://127.0.0.1/bla.bla.bla.do ; etc, which the address is never exist on your server drive. Now what ? we can configure it in web.xml (deployment descriptor).
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For example, we create simple jsp page (/secret/index.jsp)
Code :
Hello World...
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Now, we create manipulater page with generate servlet code, (/web-inf/classes/learning/show.java)
package learning;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class show extends HttpServlet{
public void doGet(HttpServletRequest req,HttpServletResponse resp)
throws ServletException,IOException{
req.getRequestDispatcher("/secret/index.jsp").forward(req,resp);
}
}
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compile
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The last, we add servlet mapping in xml code, (/web-inf/web.xml)
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<?xml version="1.0" encoding="ISO-8859-1"?>
<web-app xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
version="2.5"><display-name>Welcome to Tomcat</display-name>
<description>
Welcome to Tomcat
</description><!--servlet mappingnya--><servlet>
<servlet-name>myservlet</servlet-name>
<servlet-class>learning.show</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>myservlet</servlet-name>
<url-pattern>/go.yes</url-pattern>
</servlet-mapping></web-app>

----------- >> Restart your Tomcat ...
Now, you can call : http://localhost/go.yes
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(( -- For more about Tomcat Configuration, read Configure Tomcat --))
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