如何在Java中导入openssl生成的证书？

   public static void main(String[] args) {

       try {

           // 加载证书文件

           FileInputStream fis = new FileInputStream("path/to/certificate.pem");

           // 创建KeyStore对象

           KeyStore keyStore = KeyStore.getInstance(KeyStore.getDefaultType());

           // 使用空密码加载KeyStore

           keyStore.load(null, null);

           // 导入证书到KeyStore

           CertificateFactory cf = CertificateFactory.getInstance("X.509");

           X509Certificate cert = (X509Certificate) cf.generateCertificate(fis);

           keyStore.setCertificateEntry("alias", cert);

           // 关闭文件输入流

           fis.close();

       } catch (Exception e) {

           e.printStackTrace();

       }

   }