Class RandomUtils

src/main/java/cn/hellohao/utils/verifyCode/RandomUtils.java:6–48

import java.util.Random;

public class RandomUtils extends org.apache.commons.lang3.RandomUtils {

private static final char[] CODE_SEQ = { 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'J',
'K', 'L', 'M', 'N', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
'X', 'Y', 'Z', '2', '3', '4', '5', '6', '7', '8', '9' };

private static final char[] NUMBER_ARRAY = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9' };

private static Random random = new Random();

public static String randomString(int length) {
StringBuilder sb = new StringBuilder();
for (int i = 0; i < length; i++) {
sb.append(String.valueOf(CODE_SEQ[random.nextInt(CODE_SEQ.length)]));
}
return sb.toString();
}

public static String randomNumberString(int length) {
StringBuilder sb = new StringBuilder();
for (int i = 0; i < length; i++) {
sb.append(String.valueOf(NUMBER_ARRAY[random.nextInt(NUMBER_ARRAY.length)]));
}
return sb.toString();
}

public static Color randomColor(int fc, int bc) {
int f = fc;
int b = bc;
Random random = new Random();
if (f > 255) {
f = 255;
}
if (b > 255) {
b = 255;
}
return new Color(f + random.nextInt(b - f), f + random.nextInt(b - f), f + random.nextInt(b - f));
}

public static int nextInt(int bound) {
return random.nextInt(bound);
}
}