Java - How to send HTTP request through proxy server

  Here is a code to send HTTP request with proxy server using Apache HttpClient.

package com.example.demo;


import java.util.regex.Matcher;
import java.util.regex.Pattern;

import org.apache.http.HttpHost;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.DefaultHttpRequestRetryHandler;
import org.apache.http.impl.client.HttpClients;
import org.springframework.boot.CommandLineRunner;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class TestAppApplication implements CommandLineRunner{

	public static void main(String[] args) {
		SpringApplication.run(TestAppApplication.class, args);
	}

	@Override
	public void run(String... args) throws Exception {

		DefaultHttpRequestRetryHandler retryHandler = new DefaultHttpRequestRetryHandler(1,false);
		
		HttpHost host = new HttpHost("149.129.131.46", 8080);
		
		RequestConfig config = RequestConfig.custom()
				.setConnectTimeout(30000)
				.setConnectionRequestTimeout(30000)
				.setSocketTimeout(30000)
				.setProxy(host)
				.build();
		
		CloseableHttpClient client = HttpClients.custom().setDefaultRequestConfig(config)
		.setRetryHandler(retryHandler)
		.build();
		
		HttpGet getreq = new HttpGet("http://google.com");
		CloseableHttpResponse response = client.execute(getreq);
		System.out.println(response.getStatusLine().getStatusCode());
        
        client.close();
		
	}

}