Yes you can. Just package the web service in a WAR and deploy. Here's a simple class for a hello web service:
package my.web.service;
import javax.jws.WebService;
import javax.jws.WebMethod;
@WebService()
public class Hello {
@WebMethod()
public String hello(String name) {
return "Hello " + name;
}
}
and here is the web.xml for it:
<web-app xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
version="2.5"
>
<servlet>
<servlet-name>Hello</servlet-name>
<servlet-class>my.web.service.Hello</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>Hello</servlet-name>
<url-pattern>/hello</url-pattern>
</servlet-mapping>
</web-app>