using RESTeasy RestClientProxyFactoryBean

RestClientConfiguration.java

@Configuration
@ImportResource("classpath:springmvc-resteasy.xml")
public class RestClientConfiguration {

    @Inject
    private Environment environment;

    @Bean
    public HttpClient httpClient() {
        PoolingHttpClientConnectionManager connectionManager = new PoolingHttpClientConnectionManager();

        // Get the poolMaxTotal value from our application[-?].yml or default to 10 if not explicitly set
        connectionManager.setMaxTotal(environment.getProperty("poolMaxTotal", Integer.class, 10));
        // TODO: explore more settings

        return HttpClientBuilder
            .create()
            .setConnectionManager(connectionManager)
            .build();
    }


    @Bean
    @Inject
    public RestClientProxyFactoryBean<PingClient> restClientProxyFactoryBean(HttpClient httpClient) throws URISyntaxException {
        RestClientProxyFactoryBean<PingClient> restClientProxyFactoryBean = new RestClientProxyFactoryBean<>();
        restClientProxyFactoryBean.setBaseUri(new URI("http://10.0.1.9:8787/restful-service/"));
        restClientProxyFactoryBean.setHttpClient(httpClient); // This is very important, the default http client is deprecated
        restClientProxyFactoryBean.setServiceInterface(PingClient.class);
        return restClientProxyFactoryBean;
    }
    
}