Does servlet support urls as follows:
/xyz/{value}/test
where value could be replaced by text or number.
How to map that in the web.xml?
Your best bet is the URL pattern /xyz/*.
The Servlet API doesn't support to have the URL pattern wildcard * in the middle of the mapping such as /xyz/*/test nor URI templates. It only allows the wildcard * in the end of the mapping like so /prefix/* or in the start of the mapping like so *.suffix.
You can extract the path information using HttpServletRequest#getPathInfo(). Here's a basic kickoff example how to extract the path information, null and array index out of bounds checks omitted for brevity:
@WebServlet("/xyz/*")
public class XyzServlet extends HttpServlet {
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
String pathInfo = request.getPathInfo(); // /{value}/test
String[] pathParts = pathInfo.split("/");
String value = pathParts[1]; // {value}
String action = pathParts[2]; // test
if ("test".equals(action)) {
// ...
}
}
}
If you want to be able to use URI templates nonetheless, and this is actually intended to be a REST endpoint rather than a HTML page, then take a look at Jakarta REST (JAX-RS):
@Path("/xyz/{value}/test")
public class XyzResource {
@GET
@Produces(MediaType.APPLICATION_JSON)
public String getTest(@PathParam("value") String value) {
// ...
}
}
If you want more finer grained control liks as possible with Apache HTTPD's mod_rewrite, then you could look at Tuckey's URL rewrite filter or homegrow your own URL rewrite filter.