com.cq1080.utils

类 Captcha

java.lang.Object

com.cq1080.utils.Captcha

public class Captcha
extends Object

方法概要

限定符和类型	方法和说明
static byte[]	generateImage(String text) Generates a PNG image of text 180 pixels wide, 40 pixels high with white background.
static String	generateRandomDigit(int length)
static String	generateText() Generates a random alpha-numeric string of eight characters.
static String	getOrderNumber() 生成订单号
static String	getUUIDNumber(int length) 长度1-32

从类继承的方法 java.lang.Object

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

方法详细资料

generateText

public static String generateText()

Generates a random alpha-numeric string of eight characters.

返回:

random alpha-numeric string of eight characters.

generateRandomDigit

public static String generateRandomDigit(int length)

generateImage

public static byte[] generateImage(String text)

Generates a PNG image of text 180 pixels wide, 40 pixels high with white background.

参数:

text - expects string size eight (8) characters.

返回:

byte array that is a PNG image generated with text displayed.

getOrderNumber

public static String getOrderNumber()

生成订单号

getUUIDNumber

public static String getUUIDNumber(int length)

长度1-32

参数:

length - 验证码长度