package lib;
import java.io.UnsupportedEncodingException;
import java.lang.management.ManagementFactory;
import java.lang.management.RuntimeMXBean;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
public class Extends {
public static int getPid(){
RuntimeMXBean runtime = ManagementFactory.getRuntimeMXBean();
String name = runtime.getName();
try {
return Integer.parseInt(name.substring(0, name.indexOf('@')));
} catch (Exception e) {
return -1;
}
}
public static String getMD5Str(String str) {
MessageDigest messageDigest = null;
try {
messageDigest = MessageDigest.getInstance("MD5");
messageDigest.reset();
messageDigest.update(str.getBytes("UTF-8"));
} catch (NoSuchAlgorithmException e) {
System.out.println("NoSuchAlgorithmException caught!");
System.exit(-1);
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
byte[] byteArray = messageDigest.digest();
StringBuffer md5StrBuff = new StringBuffer();
for (int i = 0; i < byteArray.length; i++) {
if (Integer.toHexString(0xFF & byteArray[i]).length() == 1)
md5StrBuff.append("0").append(Integer.toHexString(0xFF & byteArray[i]));
else
md5StrBuff.append(Integer.toHexString(0xFF & byteArray[i]));
}
return md5StrBuff.toString();
}
}