@Configuration
public class HttpsRestTemplate {

	@Bean
	public RestTemplate restTemplate() {
		SSLContext sslContext = null;
		try {
			sslContext = new SSLContextBuilder().loadTrustMaterial(null, new TrustStrategy() {
				public boolean isTrusted(X509Certificate[] chain, String authType) throws CertificateException {
					return true;
				}
			}).build();
		} catch (Exception e) {
			e.printStackTrace();
		}
	    SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(sslContext, new String[] { "TLSv1" }, null,  
	            new NoopHostnameVerifier());
	    CloseableHttpClient httpclient = HttpClients.custom().setSSLSocketFactory(sslsf).build();
	    HttpComponentsClientHttpRequestFactory httpfactory = new HttpComponentsClientHttpRequestFactory(httpclient);
	    RestTemplate restTemplate = new RestTemplate(httpfactory);
	    return restTemplate;
	}
}

Https Resttemplate