access a servlet usin its name

[Mihai Radulescu]

I have a big doubt here, I have the simplest deploys file ever.

<web-app>
    <servlet>
        <servlet-name>MyServlet</servlet-name>
        <servlet-class>org.test.MyTest</servlet-class>
    </servlet> 
</web-app>

the application is in the tomcat's webapps directory like this :
tomcat
|- webapps
|- mytest
|- WEB-INF
....

and I try to access this with my browser with the URL : http://localhost:8080/mytest/MyWerver, but this fails. It seams that i can not access a servlet by using its name. The only ways to access the servlet is tu use a servlet-mapping node. So my question is :
It is possible to access a Servlet by using (only) its name ?

Thanks,
M

[Michael Ku]

this is a discouraged practice and most
web containers do not allow this by default. Using a serlvet mapping is the standard.

[Mihai Radulescu]

Hi Michael,

Thanks for your answer, but I still have one question how I can configurate the container to allow this ?

Regards,
M

[Michael Ku]

When you said by name I thought you wanted to access the servlet by class name (which is discouraged)

You need to add a servlet maping to match your servlet name entry. I have supplied some of these pairs for you to look at. Notice each servlet tag has a corresponding servlet-mapping tag. It is the servlet-name tag that ties them together. Then you can access the servlet by using the url-mapping pattern. For example, the pattern host/web root/jstltest will match the
<url-pattern>/jstltest</url-pattern>
which is tied to <servlet-name>JSTLTagTestServlet</servlet-name>
which is tied to the actual class <servlet-class>com.sparky.servlet.JSTLTagTestServlet</servlet-class>
</servlet>

You are missing the servlet mapping..,

<servlet>
<description></description>
<display-name>TestServlet</display-name>
<servlet-name>TestServlet</servlet-name>
<servlet-class>TestServlet</servlet-class>
<init-param>
<param-name>firstName</param-name>
<param-value>Michael</param-value>
</init-param>
</servlet>
<servlet>
<description>Servlet to test JSTL tags</description>
<display-name>JSTLTagTestServlet</display-name>
<servlet-name>JSTLTagTestServlet</servlet-name>
<servlet-class>com.sparky.servlet.JSTLTagTestServlet</servlet-class>
</servlet>
<servlet>
<description>Servlet to test JSTL tags</description>
<display-name>JSTLTagTestServlet</display-name>
<servlet-name>TagFileTestServlet</servlet-name>
<servlet-class>com.sparky.servlet.TagFileTestServlet</servlet-class>
</servlet>
<servlet>
<description>Servlet to test JSTL tags</description>
<display-name>SimpleTagTestServlet</display-name>
<servlet-name>SimpleTagTestServlet</servlet-name>
<servlet-class>com.sparky.servlet.SimpleTagTestServlet</servlet-class>
</servlet>
<servlet>
<description>Servlet to test JSTL tags
</description>
<display-name>JSPUseBeanTagTestServlet</display-name>
<servlet-name>JSPUseBeanTagTestServlet</servlet-name>
<servlet-class>com.sparky.servlet.JSPUseBeanTagTestServlet</servlet-class>
</servlet>
<servlet>
<description>Servlet to test error page mappings</description>
<display-name>ErrorServlet</display-name>
<servlet-name>ErrorServlet</servlet-name>
<servlet-class>com.sparky.servlet.ErrorServlet</servlet-class>
</servlet>
<servlet>
<description>
</description>
<display-name>
BeerSelect</display-name>
<servlet-name>BeerSelect</servlet-name>
<servlet-class>
com.example.web.BeerSelect</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>TestServlet</servlet-name>
<url-pattern>/TestServlet</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>JSTLTagTestServlet</servlet-name>
<url-pattern>/jstltest</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>TagFileTestServlet</servlet-name>
<url-pattern>/tagfiletest</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>SimpleTagTestServlet</servlet-name>
<url-pattern>/simpletagtest</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>JSPUseBeanTagTestServlet</servlet-name>
<url-pattern>/usebeantagtest</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>ErrorServlet</servlet-name>
<url-pattern>/error</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>BeerSelect</servlet-name>
<url-pattern>/BeerSelect</url-pattern>
</servlet-mapping>