如何用西里尔文路径阅读文件

时间:2012-09-06 20:40:01

标签: java character-encoding filenotfoundexception

实际上我有下一个代码:

String f = LauncherFrame.class.getProtectionDomain().getCodeSource().getLocation().getPath(); // path to launcher
java.lang.System.out.println(f);

String launcherHash = "";

try{
  MessageDigest md5  = MessageDigest.getInstance("MD5");
  launcherHash = calculateHash(md5, f);
}catch (Exception e) {
  java.lang.System.out.println(e){
  return;
}

calculateHash 功能:

public static String calculateHash(MessageDigest algorithm,String fileName) throws Exception{
      FileInputStream    fis = new FileInputStream(fileName);
      BufferedInputStream bis = new BufferedInputStream(fis);
      DigestInputStream  dis = new DigestInputStream(bis, algorithm);

      while (dis.read() != -1);
            byte[] hash = algorithm.digest();

      return byteArray2Hex(hash);
}

当我的.jar文件在路径中没有西里尔字符时,它在unix / windows上运行良好。但是当它有,我得到下一个例外:

java.io.FileNotFoundException: 
C:\Users\%d0%90%d1%80%d1%82%d1%83%d1%80\Documents\NetBeansProjects\artcraft-client\build\classes (Can't find file)

我该如何解决?

1 个答案:

答案 0 :(得分:2)

这是来自内存所以语法可能有点偏,但最好的可能是使用内置的URL支持直接从URL打开流;

URL url = LauncherFrame.class.getProtectionDomain().getCodeSource().getLocation();

然后将网址传递给calculateHash而不是文件名,并使用URL's openStream method获取包含内容的信息流;

InputStream is = url.openStream();
BufferedInputStream bis = new BufferedInputStream(is);
...
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