import?java.io.FileInputStream;
import?java.security.cert.Certificate;
import?java.security.cert.*;
//從文件中讀取數字證書

public?class?CertificateExample
{
????public?static?void?main（String[]?args）
	{
		try{

			//生成文件輸入流輸入文件為c:/mycert.cer
??????		FileInputStream?fin?=?new?FileInputStream（“c:/mycert.cer“）;

??????		//獲取一個處理X.509證書的證書工廠
??????		CertificateFactory?certFactory?=?CertificateFactory.getInstance（“X.509“）;

??????		//獲取證書
??????		Certificate?mycert?=?certFactory.generateCertificate（fin）;

??????		fin.close（）;

??????		System.out.println（mycert）;
??????}catch?（Exception?ex）{ex.printStackTrace（）;}

	}
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件??????550758??2004-07-21?19:30??94-1.bmp
?????文件?????????868??2004-07-21?17:57??CertificateExample.class
?????文件?????????677??2003-04-30?18:03??CertificateExample.java
?????文件?????????764??2004-03-16?22:55??mycert.cer