package cc.wshao.steer.util;
import java.util.Random;
public class StrUtils {
public static final String str = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
public static void main(String[] args) {
System.out.print(getString(6));
}
public static String getString(int length) {
StringBuffer sb = new StringBuffer();
Random random = new Random();
for (int i = 0; i < length; i++) {
sb.append(str.charAt(random.nextInt(str.length())));
}
return sb.toString();
}
}