背景

目前项目需要，利用java模拟登录一个https的网站

• jdk 1.8
• httpClient 4.5.2

报错信息如下：

main, received EOFException: error
main, handling exception: javax.net.ssl.SSLHandshakeException: Remote host closed connection during handshake
main, SEND TLSv1.2 ALERT:  fatal, description = handshake_failure
main, WRITE: TLSv1.2 Alert, length = 2
[Raw write]: length = 7
0000: 15 03 03 00 02 02 28                               ......(
main, called closeSocket()
Exception in thread "main" javax.net.ssl.SSLHandshakeException: Remote host closed connection during handshake
    at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1002)
    at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1385)
    at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1413)
    at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1397)
    at org.apache.http.conn.ssl.SSLConnectionSocketFactory.createLayeredSocket(SSLConnectionSocketFactory.java:394)
    at org.apache.http.conn.ssl.SSLConnectionSocketFactory.connectSocket(SSLConnectionSocketFactory.java:353)
    at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:141)
    at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:353)
    at org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:380)
    at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:236)
    at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:184)
    at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:88)
    at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110)
    at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:184)
    at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82)
    at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:107)
    at newSpider.HttpTest.main(HttpTest.java:49)
Caused by: java.io.EOFException: SSL peer shut down incorrectly
    at sun.security.ssl.InputRecord.read(InputRecord.java:505)
    at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:983)
    ... 16 more

代码

package newSpider;

import java.io.IOException;
import java.security.KeyManagementException;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLException;
import javax.net.ssl.SSLSession;
import javax.net.ssl.SSLSocket;

import org.apache.http.HttpEntity;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpHead;
import org.apache.http.config.Registry;
import org.apache.http.config.RegistryBuilder;
import org.apache.http.conn.socket.ConnectionSocketFactory;
import org.apache.http.conn.socket.LayeredConnectionSocketFactory;
import org.apache.http.conn.socket.PlainConnectionSocketFactory;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.conn.ssl.SSLContexts;
import org.apache.http.conn.ssl.TrustStrategy;
import org.apache.http.conn.ssl.X509HostnameVerifier;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
import org.apache.http.util.EntityUtils;

public class HttpTest {
    public static void main(String[] args) throws Exception {
        SSLConnectionSocketFactory socketFactory = new SSLConnectionSocketFactory(
                SSLContext.getDefault(),
                new String[] {"SSLv2Hello","SSLv3","TLSv1","TLSv1.1","TLSv1.2"},
                null,
                SSLConnectionSocketFactory.getDefaultHostnameVerifier());
        Registry<ConnectionSocketFactory> socketFactoryRegistry = RegistryBuilder.<ConnectionSocketFactory>create()
                .register("http", PlainConnectionSocketFactory.getSocketFactory())
                .register("https", socketFactory)
                .build();

        PoolingHttpClientConnectionManager cm = new PoolingHttpClientConnectionManager(socketFactoryRegistry);
        CloseableHttpClient client = HttpClients.custom().setConnectionManager(cm).build();
        try (CloseableHttpResponse response = client.execute(new HttpGet("https://10.134.136.16:8888/casserver/login?service=http%3A%2F%2F10.134.136.16%3A80%2Fportal%2Findex.jsp"))) {
            System.out.println(response.getStatusLine().getStatusCode());
            System.out.println(EntityUtils.toString(response.getEntity()));
        }
    }
}

package utils;

import javax.net.ssl.X509TrustManager;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;

/**
 * 证书信任管理器（用于https请求）
 * 这个证书管理器的作用就是让它信任我们指定的证书，下面的代码意味着信任所有证书，不管是否权威机构颁发。
 * @author Richard_yyf
 *
 */
public class MyX509TrustManager implements X509TrustManager {
    @Override
    public void checkClientTrusted(X509Certificate[] chain, String authType)
            throws CertificateException {
    }
    @Override
    public void checkServerTrusted(X509Certificate[] chain, String authType)
            throws CertificateException {
    }
    @Override
    public X509Certificate[] getAcceptedIssuers() {
        return null;
    }
}

问题

经过上网之后，知道了ssl分为单向认证和双向认证，在企业应用对接时一般会采用双向认证的方式。客户端发送数据是按照服务器是单向认证时发送的，即没有将客户端证书信息一起发送给服务端。服务端验证客户端证书时，发现客户端没有证书，然后就断开了握手连接。

1. 我所在的电脑的ie浏览器是可以访问这个目标网址的，虽然会报证书不安全的错误。既然可以访问说明客户端浏览器发送数据的时候是带着证书过去的，那我java模拟的时候是不是可以用这个证书呢？
2. 在Stack Overflow上看到了一样的报错，我尝试过了安装JCE的方法，问题没有解决。还有就是获取一个证书然后放在java security目录，这种我还没尝试过，因为我觉得既然我浏览器可以访问，java模拟应该也可以的。还是说这不是双向认证？我理解错了？