Package com.wf.captcha

Class GifCaptcha

java.lang.Object

com.wf.captcha.base.Randoms

com.wf.captcha.base.Captcha

com.wf.captcha.GifCaptcha

public class GifCaptcha
extends Captcha

Gif验证码类 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
GifCaptcha()
GifCaptcha(int width, int height)
GifCaptcha(int width, int height, int len)
GifCaptcha(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 os)	验证码输出,抽象方法，由子类实现
String	toBase64()	输出base64编码

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

alphas, 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

GifCaptcha

public GifCaptcha()

GifCaptcha

public GifCaptcha(int width,
 int height)

GifCaptcha

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

GifCaptcha

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

Method Details

out

public boolean out(OutputStream os)

Description copied from class: Captcha

验证码输出,抽象方法，由子类实现

Specified by:

out in class Captcha

Parameters:

os - 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