Package com.wf.captcha

Class ArithmeticCaptcha

java.lang.Object

com.wf.captcha.base.Randoms

com.wf.captcha.base.Captcha

com.wf.captcha.base.ArithmeticCaptchaAbstract

com.wf.captcha.ArithmeticCaptcha

public class ArithmeticCaptcha
extends ArithmeticCaptchaAbstract

png格式验证码

Author:

Created by 王帆 on 2018-07-27 上午 10:08.

Field Summary

Fields inherited from class com.wf.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

Fields inherited from class com.wf.captcha.base.Randoms

ALPHA, CHAR_MAX_INDEX, CHAR_MIN_INDEX, LOWER_MAX_INDEX, LOWER_MIN_INDEX, NUM_MAX_INDEX, RANDOM, UPPER_MAX_INDEX, UPPER_MIN_INDEX

Constructor Summary

Constructors

Constructor	Description
ArithmeticCaptcha()
ArithmeticCaptcha(int width, int height)
ArithmeticCaptcha(int width, int height, int len)
ArithmeticCaptcha(int width, int height, int len, Font font)

Method Summary

Modifier and Type	Method	Description
String	getContentType()	获取图片类型
boolean	out(OutputStream out)	生成验证码
String	toBase64()	输出base64编码

Methods inherited from class com.wf.captcha.base.ArithmeticCaptchaAbstract

alphas, getArithmeticString, setArithmeticString

Methods inherited from class com.wf.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

Methods inherited from class com.wf.captcha.base.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 Details

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)

Method Details

out

public boolean out(OutputStream out)

生成验证码

Specified by:

out in class Captcha

Parameters:

out - 输出流

Returns:

是否成功

toBase64

public String toBase64()

Description copied from class: Captcha

输出base64编码

Specified by:

toBase64 in class Captcha

Returns:

base64编码字符串

getContentType

public String getContentType()

Description copied from class: Captcha

获取图片类型

Specified by:

getContentType in class Captcha

Returns:

图片格式，MIME类型