一切正常.最终，使用HTTP 401 (Unauthorized)的原因是因为该服务需要Basic auth，而我没有发送它.

This was all OK. Eventually, the reason for the HTTP 401 (Unauthorized) was because the service required Basic auth and I wasn't sending it.

所有密钥库和信任库的生成都是完美的.这是最终"解决方案(使用Spring Web Services):

All the keystore and truststore generation is perfect. This is the "final" solution (using Spring Web Services):

  //
  // Spring Config

  // Inject messageSender() into a WebServiceTemplate or,
  // Have a class that extends from WebServiceGatewaySupport

  @Bean
  public HttpsUrlConnectionMessageSender messageSender() throws Exception {
    HttpsUrlConnectionMessageSender messageSender = new BasicAuthHttpsConnectionMessageSender(username, password);
    messageSender.setTrustManagers(trustManagersFactoryBean().getObject());
    messageSender.setKeyManagers(keyManagersFactoryBean().getObject());
    return messageSender;
  }

  @Bean
  public TrustManagersFactoryBean trustManagersFactoryBean() {
    TrustManagersFactoryBean trustManagersFactoryBean = new TrustManagersFactoryBean();
    trustManagersFactoryBean.setKeyStore(trustStore().getObject());
    return trustManagersFactoryBean;
  }

  @Bean
  public KeyManagersFactoryBean keyManagersFactoryBean() {
    KeyManagersFactoryBean keyManagersFactoryBean = new KeyManagersFactoryBean();
    keyManagersFactoryBean.setKeyStore(keyStore().getObject());
    keyManagersFactoryBean.setPassword(keyStorePassword);
    return keyManagersFactoryBean;
  }

  @Bean
  public KeyStoreFactoryBean trustStore() {
    KeyStoreFactoryBean keyStoreFactoryBean = new KeyStoreFactoryBean();
    keyStoreFactoryBean.setLocation(new ClassPathResource("truststore.jks")); // Located in src/main/resources
    keyStoreFactoryBean.setPassword(trustStorePassword);
    return keyStoreFactoryBean;
  }

  @Bean
  public KeyStoreFactoryBean keyStore() {
    KeyStoreFactoryBean keyStoreFactoryBean = new KeyStoreFactoryBean();
    keyStoreFactoryBean.setLocation(new ClassPathResource("keystore.jks"));
    keyStoreFactoryBean.setPassword(keyStorePassword);
    return keyStoreFactoryBean;
  }

// You might need org.springframework.ws:spring-ws-support in order to
// have HttpsUrlConnectionMessageSender
public final class BasicAuthHttpsConnectionMessageSender extends HttpsUrlConnectionMessageSender {
  private String b64Creds;

  public BasicAuthHttpsConnectionMessageSender(String username, String password) {
    b64Creds = Base64.getUrlEncoder().encodeToString((username + ":" + password).getBytes(StandardCharsets.UTF_8));
  }

  @Override
  protected void prepareConnection(HttpURLConnection connection) throws IOException {
    connection.setRequestProperty(HttpHeaders.AUTHORIZATION, String.format("Basic %s", b64Creds));
    super.prepareConnection(connection);
  }
}

另请参阅此一个-也是我自己问的O:)

Refer also to this one — also asked by myself O:)

希望这可以在将来对某人有所帮助.我花了一些时间整理所有东西.

Hope this can help someone in the future. It took me a while to put up together everything.