Hi Yoav,
Thanks for the response. I do not get the 404 error anymore after
implementing the changes. But when I access the servlet using
http://host:port/myApp/HelloServlet,
I do not get get any response and I get a blank screen. I am
attaching my modified servlet code and web.xml
Why am I getting the blank sceen (no response???). Thank you for the
help. Any suggestions?
Servlet code
-----------------
import javax.servlet.http.*;
import java.io.*;
import javax.servlet.ServletException;
import javax.servlet.ServletConfig;
import javax.servlet.ServletContext;
public class HelloServlet extends HttpServlet
{ private ServletConfig config;
public void init(ServletConfig config) throws ServletException
{this.config=config;
System.out.println("***Init");
}
public void doGet(HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException
{
System.out.println("***Service method");
ServletContext context=getServletConfig().getServletContext();
String name=context.getInitParameter("name");
String favoriteOS= config.getInitParameter("favoriteOS");
res.setContentType("text/html");
PrintWriter out=res.getWriter();
out.println("<html><body>Hello World");
out.println("context parameter name: "+ name);
out.println("config parameter favoriteOS:"+ favoriteOS);
out.println("</body></html>");
out.close();
}
}
web.xml
--------------
<servlet>
<servlet-name>HelloServlet</servlet-name>
<servlet-class>test.HelloServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>HelloServlet</servlet-name>
<url-pattern>/HelloServlet</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
------------------
On Thu, 26 Aug 2004 15:12:59 -0400, Shapira, Yoav <[EMAIL PROTECTED]> wrote:
>
> Hi,
> Is your application named HelloServlet also? If so, I suggest changing
> its name to reduce confusion. Call it "myApp" or whatever you want.
>
> Next, correct the actual code of your servlet. Having an empty
> service() method means your servlet will do nothing. Take out that
> method completely so that the parent class' service method is used.
>
> I also suggest putting your servlet in a package, e.g.
> com.mycompany.HelloServlet. Modify web.xml accordingly, specifically
> the <servlet-class> element.
>
> Take out the trailing slash from the url-pattern element of the
> servlet-mapping. Take out the leading slash from the /index.jsp
> welcome-file. These two changes are not strictly needed but are better
> style.
>
> Then restart tomcat. You should be able to access your servlet at
> http://yourhost:yourport/myApp/HelloServlet.
>
> And if you haven't done so already, make sure to read
> http://jakarta.apache.org/tomcat/tomcat-5.0-doc/appdev/index.html.
>
> Yoav Shapira
> Millennium Research Informatics
>
>
>
>
> >-----Original Message-----
> >From: Preeti Iyer [mailto:[EMAIL PROTECTED]
> >Sent: Thursday, August 26, 2004 3:06 PM
> >To: [EMAIL PROTECTED]
> >Subject: 404 error accessing servlet in Tomcat5
> >
> >Hi,
> >I have a simple webapp with 1servler. When I run my webapp in Tomcat5
> >and try accessing my servlet using
> >http://localhost:8080/HelloServlet/HelloServlet , I get a 404 error
> >page stating --
> >
> >HTTP Status 404 - /HelloServlet/HelloServlet
> >type Status report
> >message /HelloServlet/HelloServlet
> >
> >description The requested resource (/HelloServlet/HelloServlet) is not
> >available.
> >Apache Tomcat/5.0.19
> >-----
> >
> >The following is the servlet code:---
> >
> >import javax.servlet.http.*;
> >import java.io.*;
> >import javax.servlet.ServletException;
> >import javax.servlet.ServletConfig;
> >import javax.servlet.ServletContext;
> >
> >public class HelloServlet extends HttpServlet
> >{ private ServletConfig config;
> >
> > public void init(ServletConfig config) throws ServletException
> > {this.config=config;}
> >
> > public void service(HttpServletRequest req, HttpServletResponse
> res)
> >throws ServletException,IOException
> >
> > {}
> >
> > public void doGet(HttpServletRequest req, HttpServletResponse
> res)
> >throws ServletException, IOException
> > {doPost(req,res);}
> >
> > public void doPost(HttpServletRequest req, HttpServletResponse
> res)
> >throws ServletException, IOException
> > {
> > ServletContext context=getServletContext();
> > String name=context.getInitParameter("name");
> >
> > res.setContentType("text/html");
> > PrintWriter out=res.getWriter();
> > out.println("<html><body>Hello World");
> > out.println("context parameter name: "+ name);
> > out.println("</body></html>");
> > out.close();
> > }
> >
> >}
> >
> >------------
> >
> >The following is the web.xml---------
> >
> ><?xml version="1.0" encoding="UTF-8"?>
> ><!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web
> >Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd";>
> >
> ><web-app>
> >
> ><context-param>
> ><param-name>name</param-name>
> ><param-value>pi</param-value>
> ></context-param>
> >
> > <servlet>
> > <servlet-name>HelloServlet</servlet-name>
> > <servlet-class>HelloServlet</servlet-class>
> > <load-on-startup>1</load-on-startup>
> > </servlet>
> >
> > <servlet-mapping>
> > <servlet-name>HelloServlet</servlet-name>
> > <url-pattern>/HelloServlet/</url-pattern>
> > </servlet-mapping>
> >
> > <session-config>
> > <session-timeout>270</session-timeout>
> > </session-config>
> >
> > <welcome-file-list>
> > <welcome-file>/index.jsp</welcome-file>
> > </welcome-file-list>
> >
> ></web-app>
> >--------
> >
> >I am able to access index.jsp by using
> http://localhost:8080/HelloServlet/
> >What do I need to do to be able to access the servlet class? Do I need
> >to do some special kind of configuration in Tomcat?
> >
> >Thanks in advance for the help.
> >
> >---------------------------------------------------------------------
> >To unsubscribe, e-mail: [EMAIL PROTECTED]
> >For additional commands, e-mail: [EMAIL PROTECTED]
>
> This e-mail, including any attachments, is a confidential business communication,
> and may contain information that is confidential, proprietary and/or privileged.
> This e-mail is intended only for the individual(s) to whom it is addressed, and may
> not be saved, copied, printed, disclosed or used by anyone else. If you are not
> the(an) intended recipient, please immediately delete this e-mail from your computer
> system and notify the sender. Thank you.
>
>
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
