Question

I am a little confused on HttpServlet usage of @Path(“/path”) with an @POST method versus doPost(HttpServletRequest request, HttpServletResponse response) method. I have seen many good working examples of the @Path usage but never a working example of the doPost. When ever I attempt to use the doPost it never gets called.

First, what’s the difference, and which is a better way to go? Also, what am I doing wrong with the doPost

public class PostExample extends HttpServlet{


@Override
public void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {

    // HttpServlet doPost never gets called
    System.out.println("hit test doPost "+request.getRequestURI());


}
 }

Thanks!

Answer 1

"what's the difference, and which is a better way to go"

The annotation @GET, @PUT, @POST, @DELETE and @HEAD are part of JAX-RS: Java API for RESTful Web Services specification to specify the HTTP request type of a resource and are implemented in Web Service frameworks like Jersey and Apache CXF and you won’t be using them until you actually use those frameworks.

Wiki JAX-RS

"what am I doing wrong with the doPost"    

You need to specify the servlet in your web.xml

<servlet>
  <servlet-name>PostExample</servlet-name>
  <servlet-class>com.examples.PostExample</servlet-class>
</servlet>
<servlet-mapping>
   <servlet-name>PostExample</servlet-name>
   <url-pattern>/myservlet/*</url-pattern>
</servlet-mapping>