自API 8以来，您可以通过这种方式禁用HttpURLConnection SSL检查:

    HttpURLConnection conn = (HttpURLConnection) url.openConnection();
    if (conn instanceof HttpsURLConnection) {
        HttpsURLConnection httpsConn = (HttpsURLConnection) conn;
        httpsConn.setSSLSocketFactory(SSLCertificateSocketFactory.getInsecure(0, null));
        httpsConn.setHostnameVerifier(new AllowAllHostnameVerifier());
    }

这是个坏主意。信任任何证书仅仅(非常)比不使用SSL好一点点。当你说“我想让我的客户端接受任何证书(因为我只指向一个服务器)”时，你假设这意味着以某种方式指向“一个服务器”是安全的，它不是在公共网络上。

通过信任任何证书，您完全有可能受到中间人攻击。任何人都可以通过与您和终端服务器建立单独的SSL连接来代理您的连接。然后，MITM可以访问您的整个请求和响应。除非您一开始就不需要SSL(您的消息没有任何敏感内容，并且不进行身份验证)，否则您不应该盲目地信任所有证书。

你应该考虑使用keytool将公共证书添加到jks中，并使用它来构建你的套接字工厂，例如:

    KeyStore ks = KeyStore.getInstance("JKS");

    // get user password and file input stream
    char[] password = ("mykspassword")).toCharArray();
    ClassLoader cl = this.getClass().getClassLoader();
    InputStream stream = cl.getResourceAsStream("myjks.jks");
    ks.load(stream, password);
    stream.close();

    SSLContext sc = SSLContext.getInstance("TLS");
    KeyManagerFactory kmf = KeyManagerFactory.getInstance("SunX509");
    TrustManagerFactory tmf = TrustManagerFactory.getInstance("SunX509");

    kmf.init(ks, password);
    tmf.init(ks);

    sc.init(kmf.getKeyManagers(), tmf.getTrustManagers(),null);

    return sc.getSocketFactory();

这需要注意一个警告。证书最终会过期，代码届时将停止工作。通过查看证书，您可以很容易地确定何时会发生这种情况。

自API 8以来，您可以通过这种方式禁用HttpURLConnection SSL检查:

    HttpURLConnection conn = (HttpURLConnection) url.openConnection();
    if (conn instanceof HttpsURLConnection) {
        HttpsURLConnection httpsConn = (HttpsURLConnection) conn;
        httpsConn.setSSLSocketFactory(SSLCertificateSocketFactory.getInsecure(0, null));
        httpsConn.setHostnameVerifier(new AllowAllHostnameVerifier());
    }

我正在为那些使用httpclient-4.5的用户添加一个响应，它可能也适用于4.4。

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

import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.HttpResponseException;
import org.apache.http.client.fluent.ContentResponseHandler;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.conn.ssl.NoopHostnameVerifier;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.conn.ssl.TrustStrategy;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.ssl.SSLContextBuilder;



public class HttpClientUtils{

public static HttpClient getHttpClientWithoutSslValidation_UsingHttpClient_4_5_2() {
    try {
        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(), new NoopHostnameVerifier());
        CloseableHttpClient httpclient = HttpClients.custom().setSSLSocketFactory(sslsf).build(); 
        return httpclient;
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}
}

任何在android2.1上还在为StartCom SSL证书而挣扎的人，请访问https://www.startssl.com/certs/并下载ca.pem，现在在@emmby replace提供的答案中

`export CLASSPATH=bcprov-jdk16-145.jar
 CERTSTORE=res/raw/mystore.bks
      if [ -a $CERTSTORE ]; then
          rm $CERTSTORE || exit 1
      fi
 keytool \
  -import \
  -v \
  -trustcacerts \
  -alias 0 \
  -file <(openssl x509 -in mycert.pem) \
  -keystore $CERTSTORE \
  -storetype BKS \
  -provider org.bouncycastle.jce.provider.BouncyCastleProvider \
  -providerpath /usr/share/java/bcprov.jar \
  -storepass some-password`

与

 `export CLASSPATH=bcprov-jdk16-145.jar
 CERTSTORE=res/raw/mystore.bks
      if [ -a $CERTSTORE ]; then
          rm $CERTSTORE || exit 1
      fi
 keytool \
  -import \
  -v \
  -trustcacerts \
  -alias 0 \
  -file <(openssl x509 -in ca.pem) \
  -keystore $CERTSTORE \
  -storetype BKS \
  -provider org.bouncycastle.jce.provider.BouncyCastleProvider \
  -providerpath /usr/share/java/bcprov.jar \
  -storepass some-password`

应该开箱即用。即使@emmby给出了一个完美的答案，我还是纠结了一天多。希望这能帮助到某人…

信任所有证书对我来说并不是真正的替代方法，所以我做了以下工作来让HttpsURLConnection信任一个新的证书(也请参阅http://nelenkov.blogspot.jp/2011/12/using-custom-certificate-trust-store-on.html)。

Get the certificate; I got this done by exporting the certificate in Firefox (click on the little lock icon, get certificate details, click export), then used portecle to export a truststore (BKS). Load the Truststore from /res/raw/geotrust_cert.bks with the following code: final KeyStore trustStore = KeyStore.getInstance("BKS"); final InputStream in = context.getResources().openRawResource( R.raw.geotrust_cert); trustStore.load(in, null); final TrustManagerFactory tmf = TrustManagerFactory .getInstance(TrustManagerFactory.getDefaultAlgorithm()); tmf.init(trustStore); final SSLContext sslCtx = SSLContext.getInstance("TLS"); sslCtx.init(null, tmf.getTrustManagers(), new java.security.SecureRandom()); HttpsURLConnection.setDefaultSSLSocketFactory(sslCtx .getSocketFactory());