问题使用来自jar文件

Question

我运行下面的代码代码时：

public class Sign { 

private static final PrivateKey   priv = Util.loadPrivate(); 
private static final PublicKey   pub  = Util.loadPublic(); 
private static final HexBinaryAdapter adp  = new HexBinaryAdapter(); 

public static String sign(String in) { 
    try { 
     Signature sign = Signature.getInstance(Util.ALG); 
     sign.initSign(priv); 
     sign.update(in.getBytes()); 
     return adp.marshal(sign.sign()); 

    } catch (Exception e) {e.printStackTrace();} 
    return null; 
} 

public static boolean verify(String data, String sign) { 
    try { 
     Signature verify = Signature.getInstance(Util.ALG); 
     verify.initVerify(pub); 
     verify.update(data.getBytes()); 
     return verify.verify(adp.unmarshal(sign)); 
    } catch (Exception e) {e.printStackTrace();} 
    return false; 
} 

}

和主要功能如下：

public static void main(String[] args) { 
    String in = "lala"; 
    String sign = Sign.sign(in); 
    System.out.println(sign); 
    System.out.println(Sign.verify(in, sign)); 
} 

一切顺利的话，当我运行它来自Eclipse内部（输出为“true”），但是当我将它打包到jar（没有主函数）并运行它时，输出是错误的。

这是我的加载项：

public static PrivateKey loadPrivate() { 
    try { 
     URLConnection con = Util.class.getResource("private.key").openConnection(); 
     byte[] bs = new byte[con.getContentLength()]; 
     con.getInputStream().read(bs); 
     return KeyFactory.getInstance(ALG).generatePrivate(new PKCS8EncodedKeySpec(bs)); 
    } catch (Exception e) { 
     e.printStackTrace(); 
     return null; 
    } 
} 

public static PublicKey loadPublic() { 
    try { 
     URLConnection con = Util.class.getResource("public.key").openConnection(); 
     byte[] bs = new byte[con.getContentLength()]; 
     con.getInputStream().read(bs); 
     return KeyFactory.getInstance(ALG).generatePublic(new X509EncodedKeySpec(bs)); 
    } catch (Exception e) { 
     e.printStackTrace(); 
     return null; 
    } 
} 

我检查和加载项工作正常。

有什么想法？

Answer 1

只要运行这样的：

java Main -classpath=/path/to/libraryk.jar