org.aoju.bus.extra.captcha

Class AbstractCaptcha

java.lang.Object

org.aoju.bus.extra.captcha.Randoms

org.aoju.bus.extra.captcha.AbstractCaptcha

Direct Known Subclasses:

AbstractChineseCaptcha, AbstractMathCaptcha, GifCaptcha, SpecCaptcha

public abstract class AbstractCaptcha
extends Randoms

Since:

JDK 1.8+

Version:

5.6.2

Author:

Kimi Liu

Field Summary

Fields

Modifier and Type	Field and Description
protected String	chars 当前验证码
protected int	charType 验证码类型，1字母数字混合，2纯数字，3纯字母
static int[][]	COLOR 常用颜色
protected Font	font 字体Verdana
protected int	height 验证码显示高度
protected int	len 验证码随机字符长度
static int	TYPE_DEFAULT 字母数字混合
static int	TYPE_NUM_AND_UPPER 数字大写字母
static int	TYPE_ONLY_CHAR 纯字母
static int	TYPE_ONLY_LOWER 纯小写字母
static int	TYPE_ONLY_NUMBER 纯数字
static int	TYPE_ONLY_UPPER 纯大写字母
protected int	width 验证码显示宽度

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
AbstractCaptcha()

Method Summary

Modifier and Type	Method and Description
protected char[]	alphas() 生成随机验证码
void	checkAlpha() 检查验证码是否生成，没有这立即生成
protected Color	color() 获取随机常用颜色
protected Color	color(int fc, int bc) 给定范围获得随机颜色
void	drawLine(int num, Color color, Graphics2D g) 随机画干扰线
void	drawLine(int num, Graphics2D g) 随机画干扰线
void	drawOval(int num, Color color, Graphics2D g) 随机画干扰圆
void	drawOval(int num, Graphics2D g) 随机画干扰圆
int	getCharType()
Font	getFont()
int	getHeight()
int	getLen()
int	getWidth()
abstract boolean	out(OutputStream os) 验证码输出,抽象方法，由子类实现
void	setCharType(int charType)
void	setFont(Font font)
void	setHeight(int height)
void	setLen(int len)
void	setWidth(int width)
String	text() 获取当前的验证码
char[]	textChar() 获取当前验证码的字符数组

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

Field Detail

TYPE_DEFAULT

public static final int TYPE_DEFAULT

字母数字混合

See Also:

Constant Field Values

TYPE_ONLY_NUMBER

public static final int TYPE_ONLY_NUMBER

纯数字

See Also:

Constant Field Values

TYPE_ONLY_CHAR

public static final int TYPE_ONLY_CHAR

纯字母

See Also:

Constant Field Values

TYPE_ONLY_UPPER

public static final int TYPE_ONLY_UPPER

纯大写字母

See Also:

Constant Field Values

TYPE_ONLY_LOWER

public static final int TYPE_ONLY_LOWER

纯小写字母

See Also:

Constant Field Values

TYPE_NUM_AND_UPPER

public static final int TYPE_NUM_AND_UPPER

数字大写字母

See Also:

Constant Field Values

COLOR

public static final int[][] COLOR

常用颜色

font

protected Font font

字体Verdana

len

protected int len

验证码随机字符长度

width

protected int width

验证码显示宽度

height

protected int height

验证码显示高度

chars

protected String chars

当前验证码

charType

protected int charType

验证码类型，1字母数字混合，2纯数字，3纯字母

Constructor Detail

AbstractCaptcha

public AbstractCaptcha()

Method Detail

alphas

protected char[] alphas()

生成随机验证码

Returns:

验证码字符数组

color

protected Color color(int fc,
                      int bc)

给定范围获得随机颜色

Parameters:

fc - 0-255

bc - 0-255

Returns:

随机颜色

color

protected Color color()

获取随机常用颜色

Returns:

随机颜色

out

public abstract boolean out(OutputStream os)

验证码输出,抽象方法，由子类实现

Parameters:

os - 输出流

Returns:

是否成功

text

public String text()

获取当前的验证码

Returns:

字符串

textChar

public char[] textChar()

获取当前验证码的字符数组

Returns:

字符数组

checkAlpha

public void checkAlpha()

检查验证码是否生成，没有这立即生成

drawLine

public void drawLine(int num,
                     Graphics2D g)

随机画干扰线

Parameters:

num - 数量

g - Graphics2D

drawLine

public void drawLine(int num,
                     Color color,
                     Graphics2D g)

随机画干扰线

Parameters:

num - 数量

color - 颜色

g - Graphics2D

drawOval

public void drawOval(int num,
                     Graphics2D g)

随机画干扰圆

Parameters:

num - 数量

g - Graphics2D

drawOval

public void drawOval(int num,
                     Color color,
                     Graphics2D g)

随机画干扰圆

Parameters:

num - 数量

color - 颜色

g - Graphics2D

getFont

public Font getFont()

setFont

public void setFont(Font font)

getLen

public int getLen()

setLen

public void setLen(int len)

getWidth

public int getWidth()

setWidth

public void setWidth(int width)

getHeight

public int getHeight()

setHeight

public void setHeight(int height)

getCharType

public int getCharType()

setCharType

public void setCharType(int charType)