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?
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);
...