java查看证书有效期

最新推荐文章于 2023-08-18 15:03:51 发布

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最新推荐文章于 2023-08-18 15:03:51 发布

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分类专栏：小经验积累文章标签： java

原文链接：https://www.cnblogs.com/sulishihupan/p/14447130.html

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public static void main(String[] args) throws  CertificateException, FileNotFoundException {
        CertificateFactory cf = CertificateFactory.getInstance("X.509");
        FileInputStream in = new  FileInputStream("G://test.cer");
        X509Certificate cert = (X509Certificate) cf.generateCertificate(in);
        Date effDate = cert.getNotBefore();
        Date expDate = cert.getNotAfter();
        System.out.println(effDate);
        System.out.println(expDate);
    }