請問在那里下載的? ?，地址是多少？

你好.由于

@Override
public X509Certificate[] getAcceptedIssuers() {
? ?return null;
}

返回null導致

因為OKhttpClient類中的sslSocketFactory()方法實現,有一個非空判斷(看下面的代碼第二行)

public Builder sslSocketFactory(SSLSocketFactory sslSocketFactory) {
?if (sslSocketFactory == null) throw new NullPointerException("sslSocketFactory == null");
?X509TrustManager trustManager = Platform.get().trustManager(sslSocketFactory);
?if (trustManager == null) {
? ?throw new IllegalStateException("Unable to extract the trust manager on " + Platform.get()
? ? ? ?+ ", sslSocketFactory is " + sslSocketFactory.getClass());
?}
?this.sslSocketFactory = sslSocketFactory;
?this.certificateChainCleaner = CertificateChainCleaner.get(trustManager);
?return this;
}

修改方法:

在httputils類中添加

private static final X509Certificate[] AcceptedIssuers = new X509Certificate[] {};

@Override
public X509Certificate[] getAcceptedIssuers() {
? ?return AcceptedIssuers ;
}

返回?AcceptedIssuers 問題解決