HttpClient5CustomSSL.java

package com.wdbyte.httpclient;

import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;

import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSession;

import org.apache.hc.client5.http.classic.methods.HttpGet;
import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
import org.apache.hc.client5.http.impl.classic.CloseableHttpResponse;
import org.apache.hc.client5.http.impl.classic.HttpClients;
import org.apache.hc.client5.http.impl.io.PoolingHttpClientConnectionManagerBuilder;
import org.apache.hc.client5.http.io.HttpClientConnectionManager;
import org.apache.hc.client5.http.protocol.HttpClientContext;
import org.apache.hc.client5.http.ssl.SSLConnectionSocketFactory;
import org.apache.hc.client5.http.ssl.SSLConnectionSocketFactoryBuilder;
import org.apache.hc.core5.http.io.entity.EntityUtils;
import org.apache.hc.core5.http.ssl.TLS;
import org.apache.hc.core5.ssl.SSLContexts;
import org.apache.hc.core5.ssl.TrustStrategy;

/**
 * This example demonstrates how to create secure connections with a custom SSL
 * context.
 */
public class HttpClient5CustomSSL {

    public final static void main(final String[] args) throws Exception {
        // 标准CA信任,信任我们的自定义策略;
        final SSLContext sslcontext = SSLContexts.custom()
                .loadTrustMaterial(new TrustStrategy() {

                    @Override
                    public boolean isTrusted(
                            final X509Certificate[] chain,
                            final String authType) throws CertificateException {
                        final X509Certificate cert = chain[0];
                        return "CN=httpbin.org".equalsIgnoreCase(cert.getSubjectDN().getName());
                    }

                })
                .build();
        // 只允许 TLSv1.2 协议
        final SSLConnectionSocketFactory sslSocketFactory = SSLConnectionSocketFactoryBuilder.create()
                .setSslContext(sslcontext)
                .setTlsVersions(TLS.V_1_2)
                .build();
        final HttpClientConnectionManager cm = PoolingHttpClientConnectionManagerBuilder.create()
                .setSSLSocketFactory(sslSocketFactory)
                .build();

        try (CloseableHttpClient httpclient = HttpClients.custom()
                .setConnectionManager(cm)
                .build()) {

            final HttpGet httpget = new HttpGet("https://httpbin.org/get");

            System.out.println("执行请求 " + httpget.getMethod() + " " + httpget.getUri());

            final HttpClientContext clientContext = HttpClientContext.create();
            try (CloseableHttpResponse response = httpclient.execute(httpget, clientContext)) {
                System.out.println("----------------------------------------");
                System.out.println(response.getCode() + " " + response.getReasonPhrase());
                System.out.println(EntityUtils.toString(response.getEntity()));

                final SSLSession sslSession = clientContext.getSSLSession();
                if (sslSession != null) {
                    System.out.println("SSL 协议 " + sslSession.getProtocol());
                    System.out.println("SSL cipher suite " + sslSession.getCipherSuite());
                }
            }
        }
    }

}