Java_GET_POST.java

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.ProtocolException;
import java.net.URL;

public class HTTPGETPOST {

	public static void main(String[] args) throws Exception {
		get();
		post();

	}
	
	public static void get() throws Exception
	{
		// TODO Auto-generated method stub
	    URL urlForGetRequest = new URL("http://dummy.restapiexample.com/api/v1/employees");
	    String readLine = null;
	    HttpURLConnection conection = (HttpURLConnection) urlForGetRequest.openConnection();
	    conection.setRequestMethod("GET");
	    //conection.setRequestProperty("userId", "a1bcdef"); // set userId its a sample here
	    int responseCode = conection.getResponseCode();
	    if (responseCode == HttpURLConnection.HTTP_OK) {
	        BufferedReader in = new BufferedReader(
	            new InputStreamReader(conection.getInputStream()));
	        StringBuffer response = new StringBuffer();
	        while ((readLine = in .readLine()) != null) {
	            response.append(readLine);
	        } in .close();
	        // print result
	        System.out.println("GET Result : " + response.toString());
	        //GetAndPost.POSTRequest(response.toString());
	    } else {
	        System.out.println("GET NOT WORKED");
	    }
	}

	public static void post() throws Exception
	{

	    final String POST_PARAMS = "{\n" + "\"userId\": 101,\r\n" +
	        "    \"id\": 101,\r\n" +
	        "    \"title\": \"Test Title\",\r\n" +
	        "    \"body\": \"Test Body\"" + "\n}";
	    System.out.println(POST_PARAMS);
	    URL obj = new URL("https://jsonplaceholder.typicode.com/posts");
	    HttpURLConnection postConnection = (HttpURLConnection) obj.openConnection();
	    postConnection.setRequestMethod("POST");
	    postConnection.setRequestProperty("userId", "a1bcdefgh");
	    postConnection.setRequestProperty("Content-Type", "application/json");
	    postConnection.setDoOutput(true);
	    OutputStream os = postConnection.getOutputStream();
	    os.write(POST_PARAMS.getBytes());
	    os.flush();
	    os.close();
	    int responseCode = postConnection.getResponseCode();
	    System.out.println("POST Response Code :  " + responseCode);
	    System.out.println("POST Response Message : " + postConnection.getResponseMessage());
	    if (responseCode == HttpURLConnection.HTTP_CREATED) { //success
	        BufferedReader in = new BufferedReader(new InputStreamReader(
	            postConnection.getInputStream()));
	        String inputLine;
	        StringBuffer response = new StringBuffer();
	        while ((inputLine = in .readLine()) != null) {
	            response.append(inputLine);
	        } in .close();
	        // print result
	        System.out.println(response.toString());
	    } else {
	        System.out.println("POST NOT WORKED");
	    }
	}
}