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| 36. 47. 1. 打印出X509Certificate的属性 |
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import java.io.FileInputStream;
import java.security.cert.CertificateFactory;
import java.security.cert.X509Certificate;
public class MainClass {
public static void main(String args[]) throws Exception {
FileInputStream fr = new FileInputStream("sdo.cer");
CertificateFactory cf = CertificateFactory.getInstance("X509");
X509Certificate c = (X509Certificate) cf.generateCertificate(fr);
System.out.println("\tCertificate for: " + c.getSubjectDN());
System.out.println("\tCertificate issued by: " + c.getIssuerDN());
System.out.println("\tThe certificate is valid from " + c.getNotBefore() + " to "
+ c.getNotAfter());
System.out.println("\tCertificate SN# " + c.getSerialNumber());
System.out.println("\tGenerated with " + c.getSigAlgName());
}
}
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