404 error in JAXRS service using jersey and tomcat - rest

Question

Coding a JAXRS service using jersey and deployed on tomcat. Application subclass
#ApplicationPath("/rest")
public class RestApplication extends Application {
public RestApplication() {
// TODO Auto-generated constructor stub
System.out.println("Inside RestApplication Constructor");
}
#Override
public Set<Class<?>> getClasses() {
// TODO Auto-generated method stub
System.out.println("Get Class");
Set<Class<?>> s=new HashSet<Class<?>>();
s.add(SupportDataService.class);
return s;
}
}
Resource class
#Path("/supportdata")
public class SupportDataService {
public SupportDataService() {
// TODO Auto-generated constructor stub
System.out.println("Inside SupportDataService Constructor");
}
#Path("/support")
#GET
#Produces(MediaType.TEXT_XML)
public String getSupportData(){
String xmlSupport=null;
xmlSupport="<SupportData><Support><key>path1</key><value>value1</value></Support><Support><key>path2</key><value>value2</value></Support></SupportData>";
return xmlSupport;
}
}
Added all jersey jar in WEB-INF/lib except javax.servlet-api-3.0.1.jar and hitting url
http://localhost:8080/RestConfigurator/rest/supportdata/support
but getting 404 error. Not specified any web.xml as subclassed Application.

Answer 1

So with Tomcat 6, which is a Servlet 2.5 implementation, we are required to have a web.xml declaring the ServletContainer. You can see more about it here. Basically, if you want to keep your RestApplication class, the web.xml would look something like
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" 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">
<servlet>
<servlet-name>MyApplication</servlet-name>
<servlet-class>
org.glassfish.jersey.servlet.ServletContainer
</servlet-class>
<init-param>
<param-name>javax.ws.rs.Application</param-name>
<param-value>thepackge.of.RestApplication</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>MyApplication</servlet-name>
<url-pattern>/rest/*</url-pattern>
</servlet-mapping>
</web-app>
Given you have added all the jars from Jersey JAX-RS 2.0 RI bundle (besides the servlet-api), this should work. I've tested with Maven on Tomcat 6 and it works fine. Maven just pulls in all most of the jars from that bundle. But the app deployment doesn't differ.