javax.net.ssl.SSLException: java.security.InvalidAlgorithmParameterException: the trustAnchors param

根据提供的引用内容，你遇到的问题是javax.net.ssl.SSLException: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty。这个错误通常是由于缺少信任锚点导致的。信任锚点是用于验证SSL证书的根证书。解决这个问题的方法是确保信任锚点参数不为空。

以下是一种解决方法：

import.security.KeyStore;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import javax.net.ssl.TrustManager;
import javax.net.ssl.TrustManagerFactory;
import javax.net.ssl.X509TrustManager;

public class CustomTrustManager implements X509TrustManager {
    private X509TrustManager defaultTrustManager;

    public CustomTrustManager() throws Exception {
        // 获取默认的信任管理器
        TrustManagerFactory trustManagerFactory = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
        trustManagerFactory.init((KeyStore) null);
        TrustManager[] trustManagers = trustManagerFactory.getTrustManagers();
        for (TrustManager trustManager : trustManagers) {
            if (trustManager instanceof X509TrustManager) {
                defaultTrustManager = (X509TrustManager) trustManager;
                return;
            }
        }
        throw new Exception("Failed to initialize default trust manager.");
    }

    @Override
    public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {
        defaultTrustManager.checkClientTrusted(chain, authType);
    }

    @Override
    public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {
        if (chain == null || chain.length == 0) {
            throw new CertificateException("No certificates found in the chain.");
        }
        defaultTrustManager.checkServerTrusted(chain, authType);
    }

    @Override
    public X509Certificate[] getAcceptedIssuers() {
        return defaultTrustManager.getAcceptedIssuers();
    }
}

你可以使用上述代码创建一个自定义的信任管理器，并将其设置为SSL上下文的信任管理器。这样就可以解决javax.net.ssl.SSLException: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty的问题。