忽略Apache HTTPClient 4.5中的自签名证书

Question

我正在尝试 接受所有证书，和/或 使用 Apache HTTPClient 4.5版 接受自签名证书
（此处为教程链接）

我一直在从SO上的大量帖子中寻找解决此问题的方法。到目前为止，它们都没有起作用。

我不断收到此错误： Error while trying to execute request. javax.net.ssl.SSLHandshakeException: Remote host closed connection during handshake

Apache文件：

• Apache v4.5教程
• SSL / TLS定制
• Apache有版本3 的指南，但没有版本4的指南。

请注意，在所有这些示例中，我还传递了我之前定义的cookie存储和代理凭据提供程序。这些正在工作，我只是想添加SSL支持。

使用创建我自己的ssl上下文，SSLContextBuilder并使用信任所有自签名策略TrustSelfSignedStrategy。

SSLContextBuilder sshbuilder = new SSLContextBuilder();
sshbuilder.loadTrustMaterial(null, new TrustSelfSignedStrategy());
SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(sshbuilder.build());

CloseableHttpClient httpclient = HttpClients.custom()
    .setDefaultCredentialsProvider(credsProvider)
    .setDefaultCookieStore(cookieStore)
    .setSSLSocketFactory(sslsf)
    .build();

结果 ：没用。得到Error while trying to execute request. javax.net.ssl.SSLHandshakeException: Remote host closed connection during handshake

尝试＃2

与上述相同，但添加一个 PoolingHttpClientConnectionManager

SSLContextBuilder builder = new SSLContextBuilder();
builder.loadTrustMaterial(null, new TrustSelfSignedStrategy());
SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(builder.build(),SSLConnectionSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);
Registry<ConnectionSocketFactory> registry = RegistryBuilder.<ConnectionSocketFactory>create()
        .register("http", new PlainConnectionSocketFactory())
        .register("https", sslsf)
        .build();
PoolingHttpClientConnectionManager cm = new PoolingHttpClientConnectionManager(registry);
cm.setMaxTotal(2000);//max connection

CloseableHttpClient httpclient = HttpClients.custom()
    .setDefaultCredentialsProvider(credsProvider)
    .setDefaultCookieStore(cookieStore)
    .setSSLSocketFactory(sslsf)
    .setConnectionManager(cm)
    .build();

结果 ：没用。得到Error while trying to execute request. javax.net.ssl.SSLHandshakeException: Remote host closed connection during handshake

尝试＃3

只需通过覆盖即可接受所有证书TrustStrategy（不建议这样做）

SSLContextBuilder builder = new SSLContextBuilder();
builder.loadTrustMaterial(null, new TrustStrategy() {
    @Override
    public boolean isTrusted(X509Certificate[] chain, String authType) throws CertificateException {
        return true;
    }
});
SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(builder.build(),
    SSLConnectionSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);

CloseableHttpClient httpclient = HttpClients.custom()
    .setDefaultCredentialsProvider(credsProvider)
    .setDefaultCookieStore(cookieStore)
    .setSSLSocketFactory(sslsf)
    .build();

结果 ：没用。得到Error while trying to execute request. javax.net.ssl.SSLHandshakeException: Remote host closed connection during handshake

尝试＃4

我从这个答案中发现了一些有用的东西：

从版本4.5开始，HttpClient默认禁用SSLv3协议版本

这是他给的解决方案：

SSLContext sslcontext = SSLContexts.createSystemDefault();
SSLConnectionSocketFactory sslConnectionSocketFactory = new SSLConnectionSocketFactory(
        sslcontext, new String[] { "TLSv1", "SSLv3" }, null,
        SSLConnectionSocketFactory.getDefaultHostnameVerifier());

Registry<ConnectionSocketFactory> socketFactoryRegistry = RegistryBuilder.<ConnectionSocketFactory>create()
        .register("http", PlainConnectionSocketFactory.INSTANCE)
        .register("https", sslConnectionSocketFactory)
        .build();
PoolingHttpClientConnectionManager cm = new PoolingHttpClientConnectionManager(socketFactoryRegistry);

httpclient = HttpClients.custom()
    .setDefaultCredentialsProvider(credsProvider)
    .setDefaultCookieStore(cookieStore)
    .setSSLSocketFactory(sslConnectionSocketFactory)
    .setConnectionManager(cm)
    .build();

结果 ：没用。得到Error while trying to execute request. javax.net.ssl.SSLHandshakeException: Remote host closed connection during handshake

Answer 1

在使用自签名证书的情况下，上述方法之一应该可行，但是很奇怪的是，在所有方法中您都遇到了相同的例外。

我感觉在客户端或服务器不接受SSL会话建立或握手协议期间。

最好的解决方案是调试应用程序。

如果是tomcat，请在setenv.sh或setenv.bat文件中添加 **-Djavax.net.debug = all** ，然后重新启动服务器。

或者您可以按照本教程进行操作。

连接到SSL时，OP仅需要更改端口：

//For HTTPS
HttpHost httpstarget = new HttpHost("mysite.com", 443, "https");

//For HTTP
HttpHost httptarget = new HttpHost("mysite.com", 80, "http");