我目前正致力于将Android从HttpClient迁移到UrlConnection。我至少在Android 4.2.2上面临一些问题。
我尝试拨打的网址是https网址，我必须使用客户端证书。
基于this blog article，我写了以下代码：
// We create the client PKCS12 certificate
final KeyStore clientCertificateKeyStore = KeyStore.getInstance("PKCS12");
try
{
clientCertificateKeyStore.load(this.clientCertificatePayload, this.clientCertificatePassword.toCharArray());
}
finally
{
this.clientCertificatePayload.close();
}
final KeyManagerFactory keyManagerFactory = KeyManagerFactory.getInstance("X509");
keyManagerFactory.init(clientCertificateKeyStore, clientCertificatePassword.toCharArray());
final KeyManager[] keyManagers = keyManagerFactory.getKeyManagers();
sslContext = SSLContext.getInstance("TLS");
sslContext.init(keyManagers, null, null);
稍后在我的代码中，我使用sslContext变量将SSL工厂设置为httpURLConnection：
((HttpsURLConnection) httpURLConnection).setSSLSocketFactory(sslContext.getSocketFactory());
此代码在我的Android版Nexus 5上完美运行，但在使用Android 4.2.2的Wiko Rainbow上无效。事实上，在将sslSocketFactory设置为httpURLConnection之后，当我调用getOutputStream方法时，我有以下异常：
Caused by: javax.net.ssl.SSLHandshakeException: javax.net.ssl.SSLProtocolException: SSL handshake aborted: ssl=0x631b60c8: Failure in SSL library, usually a protocol error
error:14077410:SSL routines:SSL23_GET_SERVER_HELLO:sslv3 alert handshake failure (external/openssl/ssl/s23_clnt.c:741 0x59b4c8a8:0x00000000)
at org.apache.harmony.xnet.provider.jsse.OpenSSLSocketImpl.startHandshake(OpenSSLSocketImpl.java:421)
at libcore.net.http.HttpConnection.setupSecureSocket(HttpConnection.java:209)
at libcore.net.http.HttpsURLConnectionImpl$HttpsEngine.makeSslConnection(HttpsURLConnectionImpl.java:486)
at libcore.net.http.HttpsURLConnectionImpl$HttpsEngine.connect(HttpsURLConnectionImpl.java:450)
at libcore.net.http.HttpEngine.sendSocketRequest(HttpEngine.java:290)
at libcore.net.http.HttpEngine.sendRequest(HttpEngine.java:240)
at libcore.net.http.HttpURLConnectionImpl.connect(HttpURLConnectionImpl.java:81)
at libcore.net.http.HttpURLConnectionImpl.getOutputStream(HttpURLConnectionImpl.java:205)
at libcore.net.http.HttpsURLConnectionImpl.getOutputStream(HttpsURLConnectionImpl.java:281)
at com.splunk.mint.network.http.MonitorableHttpsURLConnection.getOutputStream(MonitorableHttpsURLConnection.java:93)
at com.smartnsoft.droid4me.ws.URLConnectionWebServiceCaller.performHttpRequest(URLConnectionWebServiceCaller.java:472)
at com.smartnsoft.droid4me.ws.URLConnectionWebServiceCaller.performHttpRequest(URLConnectionWebServiceCaller.java:562)
at com.smartnsoft.droid4me.ws.URLConnectionWebServiceCaller.getInputStream(URLConnectionWebServiceCaller.java:158)
... 14 more
Caused by: javax.net.ssl.SSLProtocolException: SSL handshake aborted: ssl=0x631b60c8: Failure in SSL library, usually a protocol error
error:14077410:SSL routines:SSL23_GET_SERVER_HELLO:sslv3 alert handshake failure (external/openssl/ssl/s23_clnt.c:741 0x59b4c8a8:0x00000000)
at org.apache.harmony.xnet.provider.jsse.NativeCrypto.SSL_do_handshake(Native Method)
at org.apache.harmony.xnet.provider.jsse.OpenSSLSocketImpl.startHand
我尝试了多种解决方案，包括this one，但我仍然有例外。
您是否知道如何使代码在Android 4.2.2上运行？
感谢您的帮助！
修改：这是我使用NoSSLv3Factory的方式。
基本上，我使用相同的代码来创建客户端PKCS12证书并初始化SSLContext。不同之处在于我将SSLSocketFactory设置为HttpUrlConnection。这是我试图使用的条件：
if (httpURLConnection instanceof HttpsURLConnection)
{
if (VERSION.SDK_INT >= VERSION_CODES.LOLLIPOP)
{
((HttpsURLConnection) httpURLConnection).setSSLSocketFactory(sslContext.getSocketFactory());
}
else
{
((HttpsURLConnection) httpURLConnection).setSSLSocketFactory(new NoSSLv3Factory());
}
}
我还尝试使用代码的另一个版本的构造函数：
((HttpsURLConnection) httpURLConnection).setSSLSocketFactory(new NoSSLv3Factory(sslContext.getSocketFactory()));
但我仍然有同样的例外：（