RestTemplate整合HttpClient

Spring框架的RestTemplate+Httpclient的代码配置：

配置代码

@Configuration
public class RestTemplateConfig {
    private Logger log = Logger.getLogger(this.getClass());
    @Bean
    public RestTemplate restTemplate() {
        RestTemplate restTemplate = new RestTemplate();
        restTemplate.setRequestFactory(clientHttpRequestFactory());
        restTemplate.setErrorHandler(new DefaultResponseErrorHandler());
        return restTemplate;
    }
    @Bean
    public HttpComponentsClientHttpRequestFactory clientHttpRequestFactory() {
        try {
            HttpClientBuilder httpClientBuilder = HttpClientBuilder.create();
            SSLContext sslContext = new SSLContextBuilder().loadTrustMaterial(null, new TrustStrategy() {
                public boolean isTrusted(X509Certificate[] arg0, String arg1) throws CertificateException {
                    return true;
                }
            }).build();
            httpClientBuilder.setSSLContext(sslContext);
            HostnameVerifier hostnameVerifier = NoopHostnameVerifier.INSTANCE;
            SSLConnectionSocketFactory sslConnectionSocketFactory = new SSLConnectionSocketFactory(sslContext, hostnameVerifier);
            Registry socketFactoryRegistry = RegistryBuilder.create().register("http", PlainConnectionSocketFactory.getSocketFactory()).register("https", sslConnectionSocketFactory).build();// 注册http和https请求
            PoolingHttpClientConnectionManager poolingHttpClientConnectionManager = new PoolingHttpClientConnectionManager(socketFactoryRegistry);// 开始设置连接池
            poolingHttpClientConnectionManager.setMaxTotal(200); // 最大连接数200
            poolingHttpClientConnectionManager.setDefaultMaxPerRoute(20); // 同路由并发数20
            httpClientBuilder.setConnectionManager(poolingHttpClientConnectionManager);
            httpClientBuilder.setRetryHandler(new DefaultHttpRequestRetryHandler(2, true));// 重试次数
            HttpClient httpClient = httpClientBuilder.build();
            HttpComponentsClientHttpRequestFactory clientHttpRequestFactory = new HttpComponentsClientHttpRequestFactory(httpClient);// httpClient连接配置
            clientHttpRequestFactory.setConnectTimeout(20000);// 连接超时
            clientHttpRequestFactory.setReadTimeout(20000);// 数据读取超时时间
            clientHttpRequestFactory.setConnectionRequestTimeout(200);// 连接不够用的等待时间
            return clientHttpRequestFactory;
        } catch (KeyManagementException | NoSuchAlgorithmException | KeyStoreException e) {
            log.error(e.getMessage());
        }
        return null;
    }
}