Question

Apache Http客户端。您可以看到相关代码here：

String url = "https://path/to/url/service";
HttpClient client = new HttpClient();
PostMethod method = new PostMethod(url);

// Test whether to ignore cert errors
if (ignoreCertErrors){
  TrustManager[] trustAllCerts = new TrustManager[]{
    new X509TrustManager(){
      public X509Certificate[] getAcceptedIssuers(){ return null; }
      public void checkClientTrusted(X509Certificate[] certs, String authType) {}
      public void checkServerTrusted(X509Certificate[] certs, String authType) {}
    }
  };

  try {
    SSLContext sslContext = SSLContext.getInstance("SSL");
    sslContext.init(null, trustAllCerts, new SecureRandom());
    HttpsURLConnection.setDefaultSSLSocketFactory(sslContext.getSocketFactory());
  } catch (Exception e){
    e.printStackTrace();
  }
}

try {

  // Execute the method (Post) and set the results to the responseBodyAsString()
  int statusCode = client.executeMethod(method);
  resultsBody = method.getResponseBodyAsString();

} catch (HttpException e){
  e.printStackTrace();
} catch (IOException e){
  e.printStackTrace();
} finally {
  method.releaseConnection();
}

这是每个人都说用来忽略SSL证书错误的方法（只设置为暂存，它不会在生产中使用）。但是，我仍然得到以下异常/ stacktrace：

javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building unable to find valid certification path to requested target

任何提示都会很棒。如果我在做TrustManager错误，或者我应该以不同方式执行HTTP Post方法。

谢谢！

Answer 1

首先，不要忽略证书错误。相反，处理他们。忽略证书错误会打开与潜在MITM攻击的连接。这就像关闭烟雾报警器中的蜂鸣器一样，因为有时会发出噪音......

当然，很有可能说它只适用于测试代码，它不会最终投入生产，但我们都知道在截止日期临近时会发生什么：代码在测试时没有显示任何错误 - ＆gt;我们可以按原样发货。如果需要，您应该设置测试CA.这并不是很难，而且整个过程肯定不比引入自定义开发代码和在生产中删除它更难。

你明显使用Apache Http Client：

HttpClient client = new HttpClient();
int statusCode = client.executeMethod(method);

然而，您正在使用您创建的javax.net.ssl.HttpsURLConnection初始化SSLContext：

HttpsURLConnection.setDefaultSSLSocketFactory(sslContext.getSocketFactory());

这完全独立于Apache Http客户端设置。

相反，您应该为Apache Http客户端库设置SSLContext，如this answer中所述。如果您使用的是Apache Http Client 3.x，则需要设置自己的SecureProtocolSocketFactory以使用SSLContext（请参阅示例here）。值得升级到Apache Http Client 4.x，它直接支持SSLContext。

您还可以使用Pascal's answer正确导入证书。同样，如果您按照接受的答案（凯文）来解决该问题，您确实会忽略该错误，但这会使连接容易受到MITM攻击。

Answer 2

HttpClient 4.3，很简单，

     HttpClientBuilder cb = HttpClientBuilder.create();
     SSLContextBuilder sslcb = new SSLContextBuilder();
     sslcb.loadTrustMaterial(KeyStore.getInstance(KeyStore.getDefaultType()), new TrustSelfSignedStrategy());
     cb.setSslcontext(sslcb.build());
     CloseableHttpClient httpclient = cb.build();

应该解决你的问题

Answer 3

如果你真的想忽略这对我有用的一切：

SSLContext sslContext = SSLContexts.custom().loadTrustMaterial(new TrustStrategy() {
    @Override
    public boolean isTrusted(X509Certificate[] chain, String authType) throws CertificateException {
        return true;
    }
}).build();
HostnameVerifier hnv = new NoopHostnameVerifier();      
SSLConnectionSocketFactory sslcf = new SSLConnectionSocketFactory(sslContext, hnv);     
CloseableHttpClient httpClient = HttpClients.custom().setSSLSocketFactory(sslcf).build()

Answer 4

忽略证书会对其造成伤害，因为相同的代码可能会在生产环境中移动，并可能造成严重破坏。

以下示例是 Jersey Rest Client

private static final com.sun.jersey.api.client.Client client = com.sun.jersey.api.client.Client.create(configureClient());
final com.sun.jersey.api.client.WebResource webResource = client.resource("url");
try {
    com.sun.jersey.api.client.ClientResponse response = webResource.type(MediaType.APPLICATION_JSON_TYPE)
                            .accept(MediaType.APPLICATION_JSON_TYPE)
                            .get(com.sun.jersey.api.client.ClientResponse.class);
}catch(com.sun.jersey.api.client.ClientHandlerException che){
    che.printStackTrace();  
}

忽略证书可以如下：

public static ClientConfig configureClient() {
    TrustManager[ ] certs = new TrustManager[ ] {
            new X509TrustManager() {
                public X509Certificate[] getAcceptedIssuers() {
                    return null;
                }
                public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {}
                public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {}
            }
    };
    SSLContext ctx = null;
    try {
        ctx = SSLContext.getInstance("SSL");
        ctx.init(null, certs, new SecureRandom());
    } catch (java.security.GeneralSecurityException ex) {
    }
    HttpsURLConnection.setDefaultSSLSocketFactory(ctx.getSocketFactory());

    ClientConfig config = new DefaultClientConfig();
    try {
        config.getProperties().put(HTTPSProperties.PROPERTY_HTTPS_PROPERTIES, new HTTPSProperties(
                new HostnameVerifier() {
                    public boolean verify(String hostname, SSLSession session) {
                        return true;
                    }
                },
                ctx
        ));
    } catch(Exception e) {
    }

    return config;
}

使用Java忽略SSL证书错误

4 个答案: