我试图连接到一个运行godaddy 256bit SSL证书的IIS6盒子，我得到了错误:
java.security.cert.CertPathValidatorException: Trust anchor for certification path not found.
我一直在想是什么原因导致的，但目前还没有头绪。
以下是我的联系方式:
HttpsURLConnection conn;
conn = (HttpsURLConnection) (new URL(mURL)).openConnection();
conn.setConnectTimeout(20000);
conn.setDoInput(true);
conn.setDoOutput(true);
conn.connect();
String tempString = toString(conn.getInputStream());
当前回答
我得到的错误消息与此类似，但原因是自签名证书已经过期。 当尝试openssl客户端时，它给了我一个原因，当我在firefox中检查证书对话框时忽略了这个原因。
因此，通常情况下，如果证书在密钥存储库中并且它是“VALID”，则此错误将消失。
其他回答
在我的例子中，这发生在更新到Android 8.0之后。Android设置为信任的自签名证书使用的是签名算法SHA1withRSA。切换到新的证书，使用签名算法sha256withthrsa解决了这个问题。
我得到的错误消息与此类似，但原因是自签名证书已经过期。 当尝试openssl客户端时，它给了我一个原因，当我在firefox中检查证书对话框时忽略了这个原因。
因此，通常情况下，如果证书在密钥存储库中并且它是“VALID”，则此错误将消失。
In my case, the root & intermediate certificates was successfully installed but I still got "Trust anchor for certification path not found." exception!. After digging the android document, found out that by default, secure connections (using protocols like TLS and HTTPS) from all apps trust the pre-installed system CAs, and apps targeting Android 6.0 (API level 23) and lower also trust the user-added CA store by default. If your app running on a OS with api level higher than 23 you should explicitly allow the app to trust user-added CA by adding its address to network_security_config like bellow:
<domain-config>
<domain includeSubdomains="true">PUT_YOUR_SERVER_ADDERESS</domain>
<trust-anchors>
<certificates src="user" />
</trust-anchors>
</domain-config>
您可以在运行时信任特定的证书。 只需从服务器下载，放入资产，然后使用ssl-utils-android像这样加载:
OkHttpClient client = new OkHttpClient();
SSLContext sslContext = SslUtils.getSslContextForCertificateFile(context, "BPClass2RootCA-sha2.cer");
client.setSslSocketFactory(sslContext.getSocketFactory());
在上面的例子中，我使用了OkHttpClient，但是SSLContext可以用于Java中的任何客户端。
如果你有任何问题，请提出来。我是这个小图书馆的作者。
如果你使用了改装，你需要定制你的OkHttpClient。
retrofit =新的retrofit . builder () .baseUrl (ApplicationData.FINAL_URL) .build .client (getUnsafeOkHttpClient () ()) .addConverterFactory (GsonConverterFactory.create ()) .build ();
完整代码如下。
public class RestAdapter {
private static Retrofit retrofit = null;
private static ApiInterface apiInterface;
public static OkHttpClient.Builder getUnsafeOkHttpClient() {
try {
// Create a trust manager that does not validate certificate chains
final TrustManager[] trustAllCerts = new TrustManager[]{
new X509TrustManager() {
@Override
public void checkClientTrusted(java.security.cert.X509Certificate[] chain, String authType) throws CertificateException {
}
@Override
public void checkServerTrusted(java.security.cert.X509Certificate[] chain, String authType) throws CertificateException {
}
@Override
public java.security.cert.X509Certificate[] getAcceptedIssuers() {
return new java.security.cert.X509Certificate[]{};
}
}
};
// Install the all-trusting trust manager
final SSLContext sslContext = SSLContext.getInstance("SSL");
sslContext.init(null, trustAllCerts, new java.security.SecureRandom());
// Create an ssl socket factory with our all-trusting manager
final SSLSocketFactory sslSocketFactory = sslContext.getSocketFactory();
OkHttpClient.Builder builder = new OkHttpClient.Builder();
builder.sslSocketFactory(sslSocketFactory, (X509TrustManager) trustAllCerts[0]);
builder.hostnameVerifier(new HostnameVerifier() {
@Override
public boolean verify(String hostname, SSLSession session) {
return true;
}
});
return builder;
} catch (Exception e) {
throw new RuntimeException(e);
}
}
public static ApiInterface getApiClient() {
if (apiInterface == null) {
try {
retrofit = new Retrofit.Builder()
.baseUrl(ApplicationData.FINAL_URL)
.client(getUnsafeOkHttpClient().build())
.addConverterFactory(GsonConverterFactory.create())
.build();
} catch (Exception e) {
e.printStackTrace();
}
apiInterface = retrofit.create(ApiInterface.class);
}
return apiInterface;
}
}
