org.aoju.bus.extra.captcha

Class AbstractMathCaptcha

java.lang.Object

org.aoju.bus.extra.captcha.Randoms

org.aoju.bus.extra.captcha.BaseCaptcha

org.aoju.bus.extra.captcha.AbstractMathCaptcha

Direct Known Subclasses:

MathCaptcha, MathGifCaptcha

public abstract class AbstractMathCaptcha
extends BaseCaptcha

Since:

2019/7/16 16:04

Author:

chenjh

Field Summary

Fields inherited from class org.aoju.bus.extra.captcha.BaseCaptcha

chars, charType, COLOR, font, height, len, TYPE_DEFAULT, TYPE_NUM_AND_UPPER, TYPE_ONLY_CHAR, TYPE_ONLY_LOWER, TYPE_ONLY_NUMBER, TYPE_ONLY_UPPER, width

Fields inherited from class org.aoju.bus.extra.captcha.Randoms

ALPHA, charMaxIndex, charMinIndex, lowerMaxIndex, lowerMinIndex, numMaxIndex, RANDOM, upperMaxIndex, upperMinIndex

Constructor Summary

Constructors

Constructor and Description
AbstractMathCaptcha()

Method Summary

Modifier and Type	Method and Description
protected char[]	alphas() 生成随机加减验证码

Methods inherited from class org.aoju.bus.extra.captcha.BaseCaptcha

checkAlpha, color, color, drawLine, drawLine, drawOval, drawOval, getCharType, getFont, getHeight, getLen, getWidth, out, setCharType, setFont, setHeight, setLen, setWidth, text, textChar

Methods inherited from class org.aoju.bus.extra.captcha.Randoms

alpha, alpha, alpha, num, num

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

AbstractMathCaptcha

public AbstractMathCaptcha()

Method Detail

alphas

protected char[] alphas()

生成随机加减验证码

Overrides:

alphas in class BaseCaptcha

Returns:

验证码字符数组