Spring Boot SSL Client

Question

I am new to Spring Boot. So far I am enjoying it. I have developed a demo SSL rest web server that correctly handles mutual X.509 certificate authentication. Using an IE

Answer 1

I know its too late, but here is the code that works for me.

@SpringBootApplication
public class Application {

	private static final Logger log = LoggerFactory.getLogger(Application.class);

	public static void main(String args[]) {

			makeWebServiceCall();

	}
	
	public static void makeWebServiceCall() {
		TrustStrategy acceptingTrustStrategy = (X509Certificate[] chain, String authType) -> true;

		SSLContext sslContext;
		ResponseEntity response = null;
		try {
			sslContext = org.apache.http.ssl.SSLContexts.custom().loadTrustMaterial(null, acceptingTrustStrategy)
					.build();

			SSLConnectionSocketFactory csf = new SSLConnectionSocketFactory(sslContext);

			CloseableHttpClient httpClient = HttpClients.custom().setSSLSocketFactory(csf).build();

			HttpComponentsClientHttpRequestFactory requestFactory = new HttpComponentsClientHttpRequestFactory();

			requestFactory.setHttpClient(httpClient);

			RestTemplate restTemplate = new RestTemplate(requestFactory);
			
			StringBuffer plainCreds = new StringBuffer();
			plainCreds.append("username");
			plainCreds.append(":");
			plainCreds.append("password");
			byte[] plainCredsBytes = plainCreds.toString().getBytes();
			byte[] base64CredsBytes = Base64.getEncoder().encode(plainCredsBytes);
			String userBase64Credentials = new String(base64CredsBytes);
			

			HttpHeaders headers = new HttpHeaders();
			headers.add("Authorization", "Basic " + userBase64Credentials);
			headers.setAccept(Collections.singletonList(MediaType.APPLICATION_JSON));
			headers.setContentType(MediaType.APPLICATION_JSON);

			HttpEntity entity = new HttpEntity<>(headers);

			String url = "https:restUrl";
			
			response = restTemplate.exchange(url, HttpMethod.GET, entity, String.class);
			
			if(response.getStatusCodeValue() == 200) {
				log.info("Success! Further processing based on the need");
			} else {
				log.info("****************Status code received: " + response.getStatusCodeValue() + ".************************");
			}

		} catch (KeyManagementException | NoSuchAlgorithmException | KeyStoreException e) {
			log.error("Exception occured. Here are the exception details: ", e);
		} catch(HttpClientErrorException e) {
			if(e.getRawStatusCode() == 403) {
				log.info("****************Status code received: " + e.getRawStatusCode() + ". You do not have access to the requested resource.************************");
				
			} else if(e.getRawStatusCode() == 404) {
				log.info("****************Status code received: " + e.getRawStatusCode() + ". Resource does not exist(or) the service is not up.************************");

			} else if(e.getRawStatusCode() == 400) {
				log.info("****************Status code received: " + e.getRawStatusCode() + ". Bad Request.************************");

			} else {
				log.info("****************Status code received: " + e.getRawStatusCode() + ".************************");
				
			}

           log.info("****************Response body: " + e.getResponseBodyAsString() + "************************");
		}
	}
 }

Here is the maven filed

4.0.0

org.springframework
gs-consuming-rest
0.1.0


    org.springframework.boot
    spring-boot-starter-parent
    1.5.2.RELEASE



    1.8



    
        org.springframework.boot
        spring-boot-starter
    
    
        org.springframework
        spring-web
    
    
        com.fasterxml.jackson.core
        jackson-databind
    



    org.apache.httpcomponents
    httpclient
    4.5.3



        

    org.apache.httpcomponents
    httpcore
    4.4.6







    
        
            org.springframework.boot
            spring-boot-maven-plugin