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我想從XML文件中獲得的X509證書的有效期限在標籤獲取X509證書從字符串數據截止日期
<ds:X509Certificate> MBaAFI7JTi5oRslwv2B3MmERGbPKKUsSMFwGA1UdIARVMFMwUQYKKwYBBAEJFQEBADBDMEEGCCsG
AQUFBwIBFjVodHRwOi8vd3d3LmNpc2NvLmNvbS9zZWN1cml0eS9wa2kvcG9saWNpZXMvaW5kZXgu
aHRtbDATBgNVHSUEDDAKBggrBgEFBQcDATANBgkqhkiG9w0BAQUFAAOCAQEAs2DJZwgVLmZqQS2N
3Yp4iGYhZBG6vZSDaiaAg6u1wgrfq/byBd7H3Ei+V9I7MZ1aCh4s3kl6FJ1CoRhMQcM1gbxpCbPP
KAfrMv/5/MH8erMnole7m/MqVHETX1UbLEyagOioqK3cs8MzMKxC+Fdku6Bm+i/6xhUsc6XbrVJl
IHsVBB9+9ZnpjAjC9jj21r04N51cyfp6C37999TaybNEtCJlG0XTHfLbcyX65E9ndVaRd6GYu/d0
xW0MT5bKhA36KhpUROAbPS7rXKKkfCYnMkmImE7Hfvm3vRSahX+ehY1Tx9qJXFv3PYGzbyDbvpjV
2cSUgP/bhGATKSOZuhohrw== </ds:X509Certificate
>
我的代碼,它讀取爲字符串
NodeList nodelist = element.getElementsByTagName("ds:X509Certificate");
Element element1 = (Element) nodelist.item(0);
NodeList certificateItem = element1.getChildNodes();
String certificateValue = "---- BEGIN CERTIFICATE -------- " + "\n" +
"certificateItem.item(0).getNodeValue()" + "\n" + "--- END CERTIFICATE";
System.out.print("Certificate data is : " + certificateValue);
InputStream certinputstream = new ByteArrayInputStream(certificateValue.getBytes());
CertificateFactory cf = CertificateFactory.getInstance("X.509");
X509Certificate cert = (X509Certificate)cf.generateCertificate(certinputstream);
System.out.println("Expiry Date : " + cert.getNotAfter());
但我收到以下錯誤 java.security.cert.CertificateParsingException:無效DER編碼的證書數據 在sun.security.x50 9.X509CertImpl.parse(未知來源) at sun.security.x509.X509CertImpl。(未知來源) 任何想法?由於
它工作。添加了正確的邊界標籤並修剪了空間。謝謝。 – User 2012-07-18 17:14:50