如何使用java sun security从.p12文件中提取私钥

Question

这是我的程序。我收到错误“打开密钥文件时出错”。请帮助我在哪里出错。

import java.io.FileInputStream; 
import java.security.KeyStore; 
import java.security.KeyStoreException; 
import java.security.PrivateKey; 
import java.util.Base64; 

public class ExtractionClass { 
    public static void main(String args[]) { 
     String p12Password = "PassWord"; 
     try{ 
     FileInputStream file = new FileInputStream("C:/Users/Aarti_Jangid/Desktop/p12/certChain.p12"); 
     System.out.println("FILE "+ file); 
     KeyStore keystore = KeyStore.getInstance("PKCS12", "SunJSSE"); 
     keystore.load(file, p12Password.toCharArray()); 
     String alias = keystore.aliases().nextElement(); 
     PrivateKey key = (PrivateKey)keystore.getKey(alias, p12Password.toCharArray()); 
     System.out.println(Base64.getEncoder().encodeToString(key.getEncoded())); 
     } catch(KeyStoreException kse) { 
      kse.printStackTrace(); 
      System.err.println("Error getting the key"); 
     } catch (Exception e) { 
       System.err.println("Error opening the key file"); 
       e.printStackTrace(); 
    } 
    } 
} 

Answer 1

我假设你的堆栈跟踪是：

Error opening registry key 'C:/Users/Aarti_Jangid/Desktop/p12/certChain.p12' 
Error: could not find Java.dll 
Error: could not find Java 2 Runtime Environment 

如果是这样试试这个：Java Error opening registry key