/**
* 获取文件MD5值
* @param FilePath
* @return
*/
static String GetMd5(String FilePath) {
char hexdigits[] = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'};
FileInputStream fis = null;
String sString;
char str[] = new char[16 * 2];
int k = 0;
try {
MessageDigest md = MessageDigest.getInstance("MD5");
fis = new FileInputStream(FilePath);
byte[] buffer = new byte[1024];
int length = -1;
while ((length = fis.read(buffer)) != -1) {
md.update(buffer, 0, length);
}
byte[] b = md.digest();
for (int i = 0; i < 16; i++) {
byte byte0 = b[i];
str[k++] = hexdigits[byte0 >>> 4 & 0xf];
str[k++] = hexdigits[byte0 & 0xf];
}
fis.close();
sString = new String(str);
return sString;
} catch (Exception ex) {
ex.printStackTrace();
return null;
} finally {
try {
if (fis != null) {
fis.close();
fis = null;
}
} catch (Exception ex) {
ex.printStackTrace();
}
}
}
}
