18Aug/100
Simple REST WS in Java
It's really simple to do REST Webservices using JavaEE 6. Create an class that extends Application with an ApplicationPath annotation:
import javax.ws.rs.ApplicationPath; import javax.ws.rs.core.Application; @ApplicationPath("rest") public class ApplicationConfig extends Application { }
Then, use proper annotations to publish your REST services:
import javax.ws.rs.FormParam; import javax.ws.rs.Path; import javax.ws.rs.GET; import javax.ws.rs.POST; import javax.ws.rs.PathParam; import javax.ws.rs.Produces; @Path("test") public class TestREST { @GET @Produces("application/xml") public Result noParms() { return new Result(1, "OK"); } @GET @Path("/{p}") @Produces("application/xml") public Result oneParameter( @PathParam("p") String parm) { return new Result(1, "Hi, " + parm); } @POST @Produces("application/xml") public Result twoParms( @FormParam("n") String name, @FormParam("s") String sname) { return new Result(2, sname + ", " + name); } }
Invoke with simple GET request (like "http://server/myapp/rest/test/Bro") or an HTML POST form. "Result" is a simple POJO with JAXB annotations.