RESTful WS using Jersey: Client request.

Jersey provides a client library which includes functions to request a resource. This tutorial show some basic requests from a client.

We continue with the same Java project of the previous tutorial. (you can also create a new Java project for this tutorial)
Create a new Java package, name it my.second.rest.
Create a new Java class under this package, name it ClientRequest.

Edit the ClientRequest class as following:

package my.second.rest;
 
 
import javax.ws.rs.client.Client;
import javax.ws.rs.client.ClientBuilder;
import javax.ws.rs.client.WebTarget;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.UriBuilder;
 
import org.glassfish.jersey.client.ClientConfig;
 
public class ClientRequest {
  public static void main(String[] args) {
    String HELLO_REST_URI = "http://localhost:8080/rest";
    ClientConfig config = new ClientConfig();
    Client client = ClientBuilder.newClient(config); 
 
    WebTarget target = client.target(UriBuilder.fromUri(HELLO_REST_URI)).path("hello");
 
    // Print service status
   //System.out.println(target.request(MediaType.TEXT_PLAIN).get().getStatus());
    String response = target.request().accept(MediaType.TEXT_PLAIN).get(Response.class).toString();
    System.out.println(response);
    // Print response as plain text
    System.out.println(target.request().accept(MediaType.TEXT_PLAIN).get(String.class));
    // Print response as HTML
    System.out.println(target.request(MediaType.TEXT_HTML).get(String.class));
 
  }
}

Select Run→Run As→Java Application.

In the console, you'll get:

InboundJaxrsResponse{context=ClientResponse{method=GET, uri=http://localhost:8080/rest/hello, status=200, reason=OK}}
Hello world!
<html> <title>Hello world!</title><body><h1>Hello world!</body></h1></html>

teaching_assistant/web_services/jersey_client_v234.txt · Last modified: 2021/09/06 13:09 by Nour

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