Apache HttpClient4.3.x忽略证书验证

今天需要忽略证书验证的时候，找了一圈没见靠谱的代码，无奈只能去官网看文档了，结果记录一下。

官方文档看这里

//此处跳过证书验证的方式适用于apache httpclient 4.3.x版本，并不一定适用于其他httpclient版本，请注意。
        SSLContext sslContext = SSLContexts.custom().useTLS().loadTrustMaterial(null, new TrustStrategy() {
            public boolean isTrusted(X509Certificate[] chain, String authType) throws CertificateException {
                //信任所有
                return true;
            }
        }).build();

        SSLConnectionSocketFactory sslConnectionSocketFactory = new SSLConnectionSocketFactory(sslContext, new AllowAllHostnameVerifier());

        Registry<ConnectionSocketFactory> r = RegistryBuilder.<ConnectionSocketFactory>create()
                .register("https", sslConnectionSocketFactory)
                .build();

        //设置连接池，配置过期时间为20s。
        PoolingHttpClientConnectionManager cm = new PoolingHttpClientConnectionManager(r);
        cm.setMaxTotal(500);
        cm.setDefaultMaxPerRoute(350);

        SocketConfig socketConfig = SocketConfig.custom()
                .setSoKeepAlive(true)
                .setTcpNoDelay(true)
                .setSoTimeout(20000)
                .build();
        cm.setDefaultSocketConfig(socketConfig);

        RequestConfig requestConfig = RequestConfig.custom().setConnectionRequestTimeout(20000).setConnectTimeout(20000).setSocketTimeout(20000).build();

        //创建httpClient
        CloseableHttpClient client = HttpClients.custom()
                .setConnectionManager(cm)
                .setDefaultRequestConfig(requestConfig)
                .build();