Create a REST client【转载】

 

 

Jersey contains a REST client library which can be used for testing or to build a real client in Java. The usage of this library is demonstrated in the following tutorial.

Create a new Java project com.vogella.jersey.first.client and add the Jersey JARs to the project and the project build path. Create the following test class.

 

package com.vogella.jersey.first;

import java.net.URI;

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 Test {

  public static void main(String[] args) {
    ClientConfig config = new ClientConfig();

    Client client = ClientBuilder.newClient(config);

    WebTarget target = client.target(getBaseURI());

    String response = target.path("rest").
              path("hello").
              request().
              accept(MediaType.TEXT_PLAIN).
              get(Response.class)
              .toString();


    String plainAnswer = 
        target.path("rest").path("hello").request().accept(MediaType.TEXT_PLAIN).get(String.class);
    String xmlAnswer = 
        target.path("rest").path("hello").request().accept(MediaType.TEXT_XML).get(String.class);
    String htmlAnswer= 
        target.path("rest").path("hello").request().accept(MediaType.TEXT_HTML).get(String.class);

    System.out.println(response);
    System.out.println(plainAnswer);
    System.out.println(xmlAnswer);
    System.out.println(htmlAnswer);
  }

  private static URI getBaseURI() {
    return UriBuilder.fromUri("http://localhost:8080/com.vogella.jersey.first").build();
  }
}