Consuming REST Web Service using Java and Jersey API

In this tutorial we will create a Java application which will consume REST Web Service.

The web service which will be consumed is developed in this post.


If you have created the Web Service that means you already download Jersey API.
We will need those API for our application.


Create a new java project. Name it "NoteJava"


Insert those Jersey API libraries in our build path.


Create a new java class. Name it "NoteJava.java"

	package com.tukangjava.tutorial;
	import java.net.URI;
	import java.util.Date;
	import javax.ws.rs.core.MediaType;
	import javax.ws.rs.core.UriBuilder;
	import com.sun.jersey.api.client.Client;
	import com.sun.jersey.api.client.ClientResponse;
	import com.sun.jersey.api.client.WebResource;
	import com.sun.jersey.api.client.config.ClientConfig;
	import com.sun.jersey.api.client.config.DefaultClientConfig;
	import com.sun.jersey.api.representation.Form;
	public class NoteJava {
	ClientConfig config;
	Client client;
	WebResource service;
	public static void main(String[] args) {
	DatabaseJava program = new DatabaseJava();
	program.printAllResult();
	program.printNoteById(1);
	program.newNote();
	program.printAllResult();
	}
	public NoteJava() {
	config = new DefaultClientConfig();
	client = Client.create(config);
	service = client.resource(getBaseURI());
	}
	private void printAllResult() {
	System.out.println(service.path("notes").accept(
	MediaType.APPLICATION_XML).get(String.class));
	}
	private void printNoteById(int id) {
	System.out.println(service.path("notes/1").accept(
	MediaType.APPLICATION_XML).get(String.class));
	}
	private static URI getBaseURI() {
	return UriBuilder.fromUri(
	"http://localhost:8080/NoteWS/").build();
	}
	private void newNote() {
	Form form = new Form();
	form.add("noteId", "20");
	form.add("content", "Make a new note");
	form.add("createddate", new Date().getTime() + "");
	ClientResponse response = service.path("notes").type(MediaType.APPLICATION_FORM_URLENCODED)
	.post(ClientResponse.class, form);
	}
	}

view raw NoteJava.java hosted with ❤ by GitHub

Run the application.
Console will print xml data which you can use and parse for your application.

Its very simple!