使用Volley时出现SSL异常
我在Android中使用Volley来执行我的应用程序请求。 不幸的是，我收到以下错误：
com.android.volley.NoConnectionError: javax.net.ssl.SSLHandshakeException: javax.net.ssl.SSLProtocolException: SSL handshake aborted: ssl=0x61e15f78: Failure in SSL library, usually a protocol error
error:1407743E:SSL routines:SSL23_GET_SERVER_HELLO:tlsv1 alert inappropriate fallback (external/openssl/ssl/s23_clnt.c:744 0x5b647c58:0x00000000)
我在ViewPager使用了两个Fragments ，在onResume期间请求它们的内容。 请求url基本上是相同的，但对于查询参数（它设置内容的类型，例如趋势vs热点）。
该网址的格式为https://host/api/content?type={hot/trending} 。 授权通过请求头完成。
关于这个例外的奇怪的部分是这两个请求中只有一个失败了，并且它随时会变化。 在我们之间添加了延迟后，异常停止发生（奇怪地指向某种竞争条件？）。 但这似乎是一个不好的解决方法，我想以正确的方式解决这个问题。
任何想法可能是它的原因？
编辑：
请求以标准方式创建，使用提供队列的单例，如下所示：
final RequestQueue requestQueue = RequestQueueSingleton.getInstance(getActivity()).getRequestQueue();
final GsonRequestGet<SearchApiWrapper> gsonRequest = new GsonRequestGet<>(clazz, url,successListener, errorListener);
gsonRequest.setRetryPolicy(new DefaultRetryPolicy(3000, 3, DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
gsonRequest.setTag(mTag);
requestQueue.add(gsonRequest);
这里是单身人士课程：
public class RequestQueueSingleton {
private static RequestQueueSingleton mInstance;
private RequestQueue mRequestQueue;
private Context mContext;
public RequestQueueSingleton(Context context) {
mContext = context;
mRequestQueue = getRequestQueue();
}
/**
* Returns a instance of this singleton
*/
public static synchronized RequestQueueSingleton getInstance(Context context) {
if (mInstance == null) {
mInstance = new RequestQueueSingleton(context);
}
return mInstance;
}
/**
* Returns instance of the request queue
*/
public RequestQueue getRequestQueue() {
if (mRequestQueue == null) {
mRequestQueue = Volley.newRequestQueue(mContext.getApplicationContext());
}
return mRequestQueue;
}
}
在我们的评论后，也许这可以帮助你：
您的requestQueue ：
static {
requestQueue = Volley.newRequestQueue(Application.getContext(), new HurlStack(null, ClientSSLSocketFactory.getSocketFactory()));
}
ClientSSLSocketFactory ：
public class ClientSSLSocketFactory extends SSLCertificateSocketFactory {
private SSLContext sslContext;
public static SSLSocketFactory getSocketFactory(){
try
{
X509TrustManager tm = new X509TrustManager() {
public void checkClientTrusted(X509Certificate[] xcs, String string) throws CertificateException {}
public void checkServerTrusted(X509Certificate[] xcs, String string) throws CertificateException {}
public X509Certificate[] getAcceptedIssuers() {
return null;
}
};
sslContext = SSLContext.getInstance("TLS");
sslContext.init(null, new TrustManager[] { tm }, null);
SSLSocketFactory ssf = ClientSSLSocketFactory.getDefault(10000, new SSLSessionCache(Application.getInstance()));
return ssf;
} catch (Exception ex) {
return null;
}
}
@Override
public Socket createSocket(Socket socket, String host, int port, boolean autoClose) throws IOException, UnknownHostException {
return sslContext.getSocketFactory().createSocket(socket, host, port, autoClose);
}
@Override
public Socket createSocket() throws IOException {
return sslContext.getSocketFactory().createSocket();
}
}
添加以下导入声明。
import javax.net.ssl.TrustManager;
import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSession;
import javax.net.ssl.X509TrustManager;
import java.security.cert.X509Certificate;
import java.util.ResourceBundle;
并在进行网络调用之前添加以下代码。
TrustManager[] trustAllCerts = new TrustManager[] { new X509TrustManager() {
public java.security.cert.X509Certificate[] getAcceptedIssuers() {
return null;
}
public void checkClientTrusted(X509Certificate[] certs, String authType) {
}
public void checkServerTrusted(X509Certificate[] certs, String authType) {
}
} };
SSLContext sc = null;
try {
sc = SSLContext.getInstance("SSL");
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
}
try {
sc.init(null, trustAllCerts, new java.security.SecureRandom());
} catch (KeyManagementException e) {
e.printStackTrace();
}
HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());
// Create all-trusting host name verifier
HostnameVerifier allHostsValid = new HostnameVerifier() {
public boolean verify(String hostname, SSLSession session) {
return true;
}
};
// Install the all-trusting host verifier
HttpsURLConnection.setDefaultHostnameVerifier(allHostsValid);