grapes
类 Captcha

java.lang.Object
  grapes.Captcha

public class Captcha
extends java.lang.Object

生成验证码

作者：

JSPGen

嵌套类摘要

static class

Captcha.CaptchaType 验证码类型

构造方法摘要

Captcha()

方法摘要

java.awt.image.BufferedImage	getBufferedImage()
java.awt.image.BufferedImage	getBufferedImage(Captcha.CaptchaType genre)
java.awt.image.BufferedImage	getBufferedImage(int w, int h, int c, java.lang.Object obj, Captcha.CaptchaType type) 生成验证图片流
java.awt.image.BufferedImage	getBufferedImage(java.lang.Object obj, Captcha.CaptchaType genre)
java.lang.String	getCaptcha() 获取验证码字符串

从类 java.lang.Object 继承的方法

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

构造方法详细信息

Captcha

public Captcha()

方法详细信息

getBufferedImage

public java.awt.image.BufferedImage getBufferedImage(int w,
                                                     int h,
                                                     int c,
                                                     java.lang.Object obj,
                                                     Captcha.CaptchaType type)

生成验证图片流

参数：

w - 图片宽度(默认:100)

h - 图片高度(默认:30)

c - 随机产生字符数量(默认:4)

obj - 字符或文件对象(类型:String、File、InputStream)

type - 验证码类型[0英文字符(含数字)、1中文字符、2固定字符、3图片文件]

返回：

String

getBufferedImage

public java.awt.image.BufferedImage getBufferedImage(java.lang.Object obj,
                                                     Captcha.CaptchaType genre)

getBufferedImage

public java.awt.image.BufferedImage getBufferedImage(Captcha.CaptchaType genre)

getBufferedImage

public java.awt.image.BufferedImage getBufferedImage()

getCaptcha

public java.lang.String getCaptcha()

获取验证码字符串