Resource not found error in JAX-RS web service

Hi,
I have to create web services for my project. I am new to advance java and creating Java web services for the first time. This is my servlet-

package com.servlet.explorer;

@WebServlet(description = "Basic Servlet - Print Hello World", urlPatterns = { "/HelloWorldServlet" })
public class HelloWorldServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public HelloWorldServlet() {
        super();
        // TODO Auto-generated constructor stub
    }

/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		PrintWriter out = response.getWriter();
		out.println("Hello World");
	}

/**
	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
	}

@Path("/smooth")
	@GET
	public Response smooth() {
		System.out.print("print on console");
				return null;
	}
}

I want to call the service named "smooth" which prints content on console.

This is the web.xml file-

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
  <display-name>ServletExporer</display-name>
  <welcome-file-list>
    <welcome-file>index.html</welcome-file>
    <welcome-file>index.htm</welcome-file>
    <welcome-file>index.jsp</welcome-file>
    <welcome-file>default.html</welcome-file>
    <welcome-file>default.htm</welcome-file>
    <welcome-file>default.jsp</welcome-file>
  </welcome-file-list>
  <servlet>
        <servlet-name>HelloWorldServlet</servlet-name>
        <servlet-class>HelloWorldServlet</servlet-class>
    </servlet>

<servlet-mapping>
        <servlet-name>HelloWorldServlet</servlet-name>
        <url-pattern>/HelloWorldServlet/*</url-pattern>
    </servlet-mapping>
</web-app>

The url i'm using is-
http://localhost:8080/ServletExporer/HelloWorldServlet/smooth

But it gives error 404-Resource not found sometimes and sometimes it throws ClassNotFoundException.

Please tell me what wrong i'm doing.

Thanks in advance.

What is the environment/setup etc... you are using this? You might need to explain more details about other aspects involved here.

The <servlet-class> attribute needs to contain the fully qualified class name of the servlet - that includes the package information, which is currently missing.

I wouldn't mix a WebServlet annotation with a servlet declaration in web.xml - use one or the other, but not both.

Lastly, I don't think you can mix a servlet with a JAX-RS service in the way you do (nor should you, even if it works). Have you tried creating a JAX-RS service without making it a servlet?

Thanks for replying

Vijitha Kumara wrote:What is the environment/setup etc... you are using this? You might need to explain more details about other aspects involved here.

Please tell what details are required? I am using Tomcat as server.

Ulf Dittmer wrote:The <servlet-class> attribute needs to contain the fully qualified class name of the servlet - that includes the package information, which is currently missing.

I wouldn't mix a WebServlet annotation with a servlet declaration in web.xml - use one or the other, but not both.

Lastly, I don't think you can mix a servlet with a JAX-RS service in the way you do (nor should you, even if it works). Have you tried creating a JAX-RS service without making it a servlet?

I tried writing fully qualified class name of the servlet but the url http://localhost:8080/ServletExporer/HelloWorldServlet/smooth calls the method doGet() but I want to call my web service method smooth(). How to do that?

Thanks

doGet is a servlet thing. That's why you should not make your JAX-RS handler a servlet.

Yes I got it. Tried selecting option web services in ecllipse and now its working fine

Thanks