我在使用平台提供的SDK 进行开发的时候 初始化cofig时 Resource resource = resourceLoader.getResource(wechatPayProperties.getPrivateKey()); Config config = new RSAAutoCertificateConfig.Builder() .merchantId(wechatPayProperties.getMchId()) .privateKeyFromPath(resource.getFile().getPath()) .merchantSerialNumber(wechatPayProperties.getMchSerialNo()) .apiV3Key(wechatPayProperties.getApiV3Key()) .build(); 报错入下： java.lang.IllegalArgumentException: java.security.InvalidKeyException: Illegal key size at com.wechat.pay.java.core.cipher.AbstractAeadCipher.decrypt(AbstractAeadCipher.java:83) at com.wechat.pay.java.core.certificate.AbstractAutoCertificateProvider.decryptCertificate(AbstractAutoCertificateProvider.java:157) at com.wechat.pay.java.core.certificate.AbstractAutoCertificateProvider.downloadAndUpdate(AbstractAutoCertificateProvider.java:122) at com.wechat.pay.java.core.certificate.AbstractAutoCertificateProvider.<init>(AbstractAutoCertificateProvider.java:89) at com.wechat.pay.java.core.certificate.AbstractAutoCertificateProvider.<init>(AbstractAutoCertificateProvider.java:49) at com.wechat.pay.java.core.certificate.RSAAutoCertificateProvider.<init>(RSAAutoCertificateProvider.java:32) at com.wechat.pay.java.core.certificate.RSAAutoCertificateProvider.<init>(RSAAutoCertificateProvider.java:21) at com.wechat.pay.java.core.certificate.RSAAutoCertificateProvider$Builder.build(RSAAutoCertificateProvider.java:111) at com.wechat.pay.java.core.RSAAutoCertificateConfig$Builder.build(RSAAutoCertificateConfig.java:114)