[英]How to get the Certificate Information in Java
我試圖僅在Java中獲取和讀取證書。 我應該查看哪些代碼或示例來獲得網站的證書。
例如,網站:
我是否使用URL類?
URL url = new URL("https://google.com");
好的,我剛剛發現如何獲得所需的信息。
public void certInformation(String aURL) throws Exception{
URL destinationURL = new URL(aURL);
HttpsURLConnection conn = (HttpsURLConnection) destinationURL.openConnection();
conn.connect();
Certificate[] certs = conn.getServerCertificates();
for (Certificate cert : certs) {
System.out.println("Certificate is: " + cert);
if(cert instanceof X509Certificate) {
X509Certificate x = (X509Certificate ) cert;
System.out.println(x.getIssuerDN());
}
}
}
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