CXF Restful Client

By admin | February 15, 2012 | Updated : March 26, 2016 cxf, rest, webservice, 2 Comments

CXF Restful Client Example explains step by step details of How To Create a CXF REST Client from a deployed Apache CXF Restful service

For Creating Apache CXF Restful Client, We are using java.net.HttpURLConnection.

By using HttpURLConnection, we are invoking the correct exposed methods / operations of restful service.

You can see the below example, which is demonstrating a CXF REST Client Example

Note

You can also find RESTful Java Client Using HttpClient if you need to invoke restful service using Apache HttpClient

Note

For publishing a Restful service, you can follow this tutorial CXF Restful Tutorial. This client is based on mentioned Tutorial

Create CXF Restful Client

Here we showing an example of a CXF REST client, which invoking a POST method of a CXF Restful Service

package com.client;

import java.io.IOException;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.Scanner;

// CXF REST Client Invoking POST Method

public class PostStudentClient {

public static void main(String[] args) {
    try {
      URL url = new URL("http://localhost:8080/CXFRestfulTutorial/rest/changeName");
      HttpURLConnection conn = (HttpURLConnection) url.openConnection();
      conn.setDoOutput(true);
      conn.setRequestMethod("POST");
      conn.setRequestProperty("Content-Type", "application/json");

      String input = "{\"Student\":{\"name\":\"Tom\"}}";

      OutputStream os = conn.getOutputStream();
      os.write(input.getBytes());
      os.flush();

      Scanner scanner;
      String response;
      if (conn.getResponseCode() != 200) {
        scanner = new Scanner(conn.getErrorStream());
        response = "Error From Server \n\n";
      } else {
        scanner = new Scanner(conn.getInputStream());
        response = "Response From Server \n\n";
      }
      scanner.useDelimiter("\\Z");
      System.out.println(response + scanner.next());
      scanner.close();
      conn.disconnect();
    } catch (MalformedURLException e) {
      e.printStackTrace();
    } catch (IOException e) {
      e.printStackTrace();
    }
}
}

Output

Response From Server

{"Student":{"name":"HELLO Tom"}}

Here we showing an example of a CXF REST client, which invoking a GET method of a CXF Restful Service

package com.client;

import java.io.IOException;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.Scanner;

// CXF JAX-RS client Invoking GET Method

public class GetStudentClient {

public static void main(String[] args) {
    try {
      URL url = new URL("http://localhost:8080/CXFRestfulTutorial/rest/getName");
      HttpURLConnection conn = (HttpURLConnection) url.openConnection();
      conn.setDoOutput(true);
      conn.setRequestMethod("GET");
      conn.setRequestProperty("Content-Type", "application/json");
      Scanner scanner;
      String response;
      if (conn.getResponseCode() != 200) {
        scanner = new Scanner(conn.getErrorStream());
        response = "Error From Server \n\n";
      } else {
        scanner = new Scanner(conn.getInputStream());
        response = "Response From Server \n\n";
      }
      scanner.useDelimiter("\\Z");
      System.out.println(response + scanner.next());
      scanner.close();
      conn.disconnect();
    } catch (MalformedURLException e) {
      e.printStackTrace();
    } catch (IOException e) {
      e.printStackTrace();
    }
}
}

Output

Response From Server

{"Student":{"name":"Rockey"}}

You might also like following tutorials :

2 Responses to "CXF Restful Client"

saurabh 2012-02-20 08:25:02.0

How can i implement logging interceptors at client using rest

admin 2012-02-21 08:25:02.0

@saurabh,

Please see below article adding apache cxf logging interceptors on client side
http://www.javatips.net/blog/apache-cxf-logging

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Create CXF Restful Client

Output

Output

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