1. OSGi Bundle
5. HttpService
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.osgi.service.component.annotations.Component;
import org.osgi.service.http.HttpService;
import org.osgi.service.http.NamespaceException;
@Component(service = HttpServlet.class, property = { "alias=/hello" })
public class HelloServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.getWriter().println("Hello, OSGi Servlet!");
}
public void activate(HttpService httpService) {
try {
httpService.registerServlet("/hello", this, null, null);
e.printStackTrace();
}
}
public void deactivate(HttpService httpService) {
httpService.unregister("/hello");
}
}
import org.osgi.framework.BundleActivator;
import org.osgi.framework.BundleContext;
import org.osgi.framework.ServiceReference;
import org.osgi.service.http.HttpService;
public class Activator implements BundleActivator {
private ServiceReference<HttpService> httpServiceReference;
@Override
public void start(BundleContext context) throws Exception {
httpServiceReference = context.getServiceReference(HttpService.class);
HttpService httpService = context.getService(httpServiceReference);
HelloServlet helloServlet = new HelloServlet();
helloServlet.activate(httpService);
}
@Override
public void stop(BundleContext context) throws Exception {
HelloServlet helloServlet = new HelloServlet();
helloServlet.deactivate(context.getService(httpServiceReference));
context.ungetService(httpServiceReference);
}
}
