程序包 io.springboot.captcha

类 ArithmeticCaptcha

java.lang.Object

io.springboot.captcha.base.Randoms

io.springboot.captcha.base.Captcha

io.springboot.captcha.base.ArithmeticCaptchaAbstract

io.springboot.captcha.ArithmeticCaptcha

public class ArithmeticCaptcha
extends ArithmeticCaptchaAbstract

png格式验证码 Created by 王帆 on 2018-07-27 上午 10:08.

字段概要

从类继承的字段 io.springboot.captcha.base.ArithmeticCaptchaAbstract

algorithmSign, difficulty

从类继承的字段 io.springboot.captcha.base.Captcha

chars, charType, COLOR, FONT_1, FONT_10, FONT_2, FONT_3, FONT_4, FONT_5, FONT_6, FONT_7, FONT_8, FONT_9, height, len, TYPE_DEFAULT, TYPE_NUM_AND_UPPER, TYPE_ONLY_CHAR, TYPE_ONLY_LOWER, TYPE_ONLY_NUMBER, TYPE_ONLY_UPPER, width

从类继承的字段 io.springboot.captcha.base.Randoms

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

构造器概要

构造器

构造器	说明
ArithmeticCaptcha()
ArithmeticCaptcha(int width, int height)
ArithmeticCaptcha(int width, int height, int len)
ArithmeticCaptcha(int width, int height, int len, Font font)

方法概要

修饰符和类型	方法	说明
String	getContentType()	获取图片类型
private boolean	graphicsImage(char[] strs, OutputStream out)	生成验证码图形
boolean	out(OutputStream out)	生成验证码
String	toBase64()	输出base64编码

从类继承的方法 io.springboot.captcha.base.ArithmeticCaptchaAbstract

alphas, getArithmeticString, setArithmeticString, setDifficulty, supportAlgorithmSign

从类继承的方法 io.springboot.captcha.base.Captcha

checkAlpha, color, color, drawBesselLine, drawBesselLine, drawLine, drawLine, drawOval, drawOval, getCharType, getFont, getHeight, getLen, getWidth, setCharType, setFont, setFont, setFont, setFont, setHeight, setLen, setWidth, text, textChar, toBase64

从类继承的方法 io.springboot.captcha.base.Randoms

alpha, alpha, alpha, num, num

从类继承的方法 java.lang.Object

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

构造器详细资料

ArithmeticCaptcha

public ArithmeticCaptcha()

ArithmeticCaptcha

public ArithmeticCaptcha(int width,
 int height)

ArithmeticCaptcha

public ArithmeticCaptcha(int width,
 int height,
 int len)

ArithmeticCaptcha

public ArithmeticCaptcha(int width,
 int height,
 int len,
 Font font)

方法详细资料

out

public boolean out(OutputStream out)

生成验证码

指定者:

out 在类中 Captcha

参数:

out - 输出流

返回:

是否成功

toBase64

public String toBase64()

从类复制的说明: Captcha

输出base64编码

指定者:

toBase64 在类中 Captcha

返回:

base64编码字符串

getContentType

public String getContentType()

从类复制的说明: Captcha

获取图片类型

指定者:

getContentType 在类中 Captcha

返回:

图片格式，MIME类型

graphicsImage

private boolean graphicsImage(char[] strs,
 OutputStream out)

生成验证码图形

参数:

strs - 验证码

out - 输出流

返回:

boolean