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图片验证码
This commit is contained in:
xielei
parent
79de198e6d
commit
993470a9cf
@ -8,79 +8,87 @@ package cn.hutool.captcha;
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*/
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public class CaptchaUtil {
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/**
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* 创建线干扰的验证码，默认5位验证码，150条干扰线
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*
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* @param width 图片宽
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* @param height 图片高
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* @return {@link LineCaptcha}
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*/
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public static LineCaptcha createLineCaptcha(int width, int height) {
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return new LineCaptcha(width, height);
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}
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/**
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* 创建线干扰的验证码，默认5位验证码，150条干扰线
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*
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* @param width 图片宽
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* @param height 图片高
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* @return {@link LineCaptcha}
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*/
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public static LineCaptcha createLineCaptcha(int width, int height) {
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return new LineCaptcha(width, height);
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}
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/**
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* 创建线干扰的验证码
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*
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* @param width 图片宽
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* @param height 图片高
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* @param codeCount 字符个数
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* @param lineCount 干扰线条数
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* @return {@link LineCaptcha}
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*/
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public static LineCaptcha createLineCaptcha(int width, int height, int codeCount, int lineCount) {
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return new LineCaptcha(width, height, codeCount, lineCount);
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}
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/**
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* 创建线干扰的验证码
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*
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* @param width 图片宽
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* @param height 图片高
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* @param codeCount 字符个数
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* @param lineCount 干扰线条数
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* @return {@link LineCaptcha}
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*/
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public static LineCaptcha createLineCaptcha(int width, int height, int codeCount, int lineCount) {
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return new LineCaptcha(width, height, codeCount, lineCount);
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}
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/**
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* 创建圆圈干扰的验证码，默认5位验证码，15个干扰圈
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*
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* @param width 图片宽
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* @param height 图片高
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* @return {@link CircleCaptcha}
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* @since 3.2.3
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*/
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public static CircleCaptcha createCircleCaptcha(int width, int height) {
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return new CircleCaptcha(width, height);
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}
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/**
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* 创建圆圈干扰的验证码，默认5位验证码，15个干扰圈
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*
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* @param width 图片宽
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* @param height 图片高
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* @return {@link CircleCaptcha}
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* @since 3.2.3
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*/
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public static CircleCaptcha createCircleCaptcha(int width, int height) {
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return new CircleCaptcha(width, height);
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}
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/**
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* 创建圆圈干扰的验证码
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*
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* @param width 图片宽
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* @param height 图片高
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* @param codeCount 字符个数
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* @param circleCount 干扰圆圈条数
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* @return {@link CircleCaptcha}
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* @since 3.2.3
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*/
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public static CircleCaptcha createCircleCaptcha(int width, int height, int codeCount, int circleCount) {
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return new CircleCaptcha(width, height, codeCount, circleCount);
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}
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/**
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* 创建圆圈干扰的验证码
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*
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* @param width 图片宽
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* @param height 图片高
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* @param codeCount 字符个数
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* @param circleCount 干扰圆圈条数
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* @return {@link CircleCaptcha}
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* @since 3.2.3
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*/
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public static CircleCaptcha createCircleCaptcha(int width, int height, int codeCount, int circleCount) {
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return new CircleCaptcha(width, height, codeCount, circleCount);
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}
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/**
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* 创建扭曲干扰的验证码，默认5位验证码
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*
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* @param width 图片宽
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* @param height 图片高
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* @return {@link ShearCaptcha}
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* @since 3.2.3
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*/
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public static ShearCaptcha createShearCaptcha(int width, int height) {
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return new ShearCaptcha(width, height);
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}
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/**
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* 创建扭曲干扰的验证码，默认5位验证码
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*
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* @param width 图片宽
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* @param height 图片高
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* @return {@link ShearCaptcha}
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* @since 3.2.3
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*/
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public static ShearCaptcha createShearCaptcha(int width, int height) {
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return new ShearCaptcha(width, height);
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}
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/**
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* 创建扭曲干扰的验证码，默认5位验证码
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*
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* @param width 图片宽
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* @param height 图片高
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* @param codeCount 字符个数
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* @param thickness 干扰线宽度
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* @return {@link ShearCaptcha}
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* @since 3.3.0
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*/
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public static ShearCaptcha createShearCaptcha(int width, int height, int codeCount, int thickness) {
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return new ShearCaptcha(width, height, codeCount, thickness);
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}
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/**
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* 创建扭曲干扰的验证码，默认5位验证码
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*
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* @param width 图片宽
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* @param height 图片高
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* @param codeCount 字符个数
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* @param thickness 干扰线宽度
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* @return {@link ShearCaptcha}
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* @since 3.3.0
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*/
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public static ShearCaptcha createShearCaptcha(int width, int height, int codeCount, int thickness) {
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return new ShearCaptcha(width, height, codeCount, thickness);
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}
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public static GifCaptcha createGifCaptcha(int width, int height) {
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return new GifCaptcha(width, height);
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}
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public static GifCaptcha createGifCaptcha(int width, int height, int delay) {
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return new GifCaptcha(width, height, delay);
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}
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}
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221
hutool-captcha/src/main/java/cn/hutool/captcha/GifCaptcha.java
Normal file
221
hutool-captcha/src/main/java/cn/hutool/captcha/GifCaptcha.java
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@ -0,0 +1,221 @@
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package cn.hutool.captcha;
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import cn.hutool.core.img.gif.AnimatedGifEncoder;
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import cn.hutool.core.util.ObjectUtil;
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import java.awt.*;
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import java.awt.image.BufferedImage;
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import java.io.ByteArrayOutputStream;
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import java.util.Random;
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/**
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* Gif验证码类
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*/
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public class GifCaptcha extends AbstractCaptcha {
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private static final long serialVersionUID = 7091627304326538464L;
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private final Random RANDOM = new Random();
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// 帧延迟 (默认100)
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private int delay = 100;
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//量化器取样间隔 - 默认是10ms
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private int quality = 10;
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// 帧循环次数
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private int repeat = 0;
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//设置随机颜色时，最小的取色范围
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private int minColor = 0;
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//设置随机颜色时，最大的取色范围
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private int maxColor = 255;
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/**
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* 可以设置验证码宽度，高度的构造函数
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*
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* @param width -验证码宽度
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* @param height -验证码高度
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*/
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public GifCaptcha(int width, int height) {
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this(width, height, 100);
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}
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/**
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* @param width -验证码宽度
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* @param height -验证码高度
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* @param codeCount -验证码个数
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*/
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public GifCaptcha(int width, int height, int codeCount) {
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super(width, height, codeCount, 10);
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}
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/**
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* 设置图像的颜色量化(转换质量 由GIF规范允许的最大256种颜色)。
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* 低的值(最小值= 1)产生更好的颜色,但处理显著缓慢。
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* 10是默认,并产生良好的颜色而且有以合理的速度。
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* 值更大(大于20)不产生显著的改善速度
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*
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* @param quality 大于1
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*/
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public void setQuality(int quality) {
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if (quality < 1) {
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quality = 1;
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}
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this.quality = quality;
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}
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/**
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* 设置GIF帧应该播放的次数。
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* 默认是 0; 0意味着无限循环。
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* 必须在添加的第一个图像之前被调用。
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*
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* @param repeat 必须大于等于0
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*/
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public void setRepeat(int repeat) {
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if (repeat >= 0) {
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this.repeat = repeat;
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}
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}
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/**
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* 设置验证码字符颜色
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*
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* @param maxColor 颜色
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*/
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public void setMaxColor(int maxColor) {
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this.maxColor = maxColor;
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}
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/**
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* 设置验证码字符颜色
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*
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* @param minColor 颜色
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*/
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public void setMinColor(int minColor) {
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this.minColor = minColor;
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}
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@Override
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public void createCode() {
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generateCode();
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final ByteArrayOutputStream out = new ByteArrayOutputStream();
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AnimatedGifEncoder gifEncoder = new AnimatedGifEncoder();// gif编码类
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//生成字符
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gifEncoder.start(out);
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gifEncoder.setQuality(quality);//设置量化器取样间隔
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gifEncoder.setDelay(delay);//设置帧延迟
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gifEncoder.setRepeat(repeat);//帧循环次数
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BufferedImage frame;
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char[] chars = code.toCharArray();
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Color[] fontColor = new Color[chars.length];
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for (int i = 0; i < chars.length; i++) {
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fontColor[i] = getRandomColor(minColor, maxColor);
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frame = graphicsImage(chars, fontColor, chars, i);
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gifEncoder.addFrame(frame);
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frame.flush();
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}
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gifEncoder.finish();
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this.imageBytes = out.toByteArray();
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}
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@Override
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protected Image createImage(String code) {
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return null;
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}
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/**
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* 画随机码图
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*
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* @param fontColor 随机字体颜色
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* @param words 字符数组
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* @param flag 透明度使用
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* @return BufferedImage
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*/
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private BufferedImage graphicsImage(char[] chars, Color[] fontColor, char[] words, int flag) {
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BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
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//或得图形上下文
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Graphics2D g2d = image.createGraphics();
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//利用指定颜色填充背景
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g2d.setColor(ObjectUtil.defaultIfNull(this.background, Color.WHITE));
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g2d.fillRect(0, 0, width, height);
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AlphaComposite ac;
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// 字符的y坐标
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float y = (height >> 1) + (font.getSize() >> 1);
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float m = 1.0f * (width - (chars.length * font.getSize())) / chars.length;
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//字符的x坐标
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float x = Math.max(m / 2.0f, 2);
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g2d.setFont(font);
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// 指定透明度
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if (null != this.textAlpha) {
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g2d.setComposite(this.textAlpha);
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}
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for (int i = 0; i < chars.length; i++) {
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ac = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, getPellucidity(chars.length, flag, i));
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g2d.setComposite(ac);
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g2d.setColor(fontColor[i]);
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g2d.drawOval(num(width), num(height), num(5, 30), 5 + num(5, 30));//绘制椭圆边框
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g2d.drawString(words[i] + "", x + (font.getSize() + m) * i, y);
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}
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g2d.dispose();
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return image;
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}
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/**
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* 获取透明度,从0到1,自动计算步长
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*
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* @return float 透明度
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*/
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private float getPellucidity(int v, int i, int j) {
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int num = i + j;
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float r = (float) 1 / v;
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float s = (v + 1) * r;
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return num > v ? (num * r - s) : num * r;
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}
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/**
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* 通过给定范围获得随机的颜色
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*
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* @return Color 获得随机的颜色
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*/
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private Color getRandomColor(int min, int max) {
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if (min > 255) {
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min = 255;
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}
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if (max > 255) {
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max = 255;
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}
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if (min < 0) {
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min = 0;
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}
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if (max < 0) {
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max = 0;
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}
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if (min > max) {
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min = 0;
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max = 255;
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}
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return new Color(min + num(max - min), min + num(max - min), min + num(max - min));
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}
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/**
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* 产生两个数之间的随机数
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*
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* @param min 小数
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* @param max 比min大的数
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* @return int 随机数字
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*/
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private int num(int min, int max) {
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return min + RANDOM.nextInt(max - min);
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}
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/**
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* 产生0--num的随机数,不包括num
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*
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* @param num 数字
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* @return int 随机数字
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*/
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private int num(int num) {
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return RANDOM.nextInt(num);
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}
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}
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@ -1,11 +1,10 @@
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package cn.hutool.captcha;
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import org.junit.Assert;
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import org.junit.Ignore;
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import org.junit.Test;
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import cn.hutool.captcha.generator.MathGenerator;
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import cn.hutool.core.lang.Console;
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import org.junit.Assert;
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import org.junit.Ignore;
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import org.junit.Test;
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import java.awt.*;
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@ -13,93 +12,100 @@ import java.awt.*;
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* 直线干扰验证码单元测试
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*
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* @author looly
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*
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*/
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public class CaptchaTest {
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@Test
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public void lineCaptchaTest1() {
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// 定义图形验证码的长和宽
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LineCaptcha lineCaptcha = CaptchaUtil.createLineCaptcha(200, 100);
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Assert.assertNotNull(lineCaptcha.getCode());
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Assert.assertTrue(lineCaptcha.verify(lineCaptcha.getCode()));
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}
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@Test
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public void lineCaptchaTest1() {
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// 定义图形验证码的长和宽
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LineCaptcha lineCaptcha = CaptchaUtil.createLineCaptcha(200, 100);
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Assert.assertNotNull(lineCaptcha.getCode());
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Assert.assertTrue(lineCaptcha.verify(lineCaptcha.getCode()));
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}
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@Test
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@Ignore
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public void lineCaptchaTest3() {
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// 定义图形验证码的长和宽
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LineCaptcha lineCaptcha = CaptchaUtil.createLineCaptcha(200, 70, 4, 15);
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lineCaptcha.setBackground(Color.yellow);
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lineCaptcha.write("f:/test/captcha/tellow.png");
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}
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@Test
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@Ignore
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public void lineCaptchaTest3() {
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// 定义图形验证码的长和宽
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LineCaptcha lineCaptcha = CaptchaUtil.createLineCaptcha(200, 70, 4, 15);
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lineCaptcha.setBackground(Color.yellow);
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lineCaptcha.write("f:/test/captcha/tellow.png");
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}
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@Test
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@Ignore
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public void lineCaptchaWithMathTest() {
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// 定义图形验证码的长和宽
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LineCaptcha lineCaptcha = CaptchaUtil.createLineCaptcha(200, 80);
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lineCaptcha.setGenerator(new MathGenerator());
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lineCaptcha.setTextAlpha(0.8f);
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lineCaptcha.write("f:/captcha/math.png");
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}
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@Test
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@Ignore
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public void lineCaptchaWithMathTest() {
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// 定义图形验证码的长和宽
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LineCaptcha lineCaptcha = CaptchaUtil.createLineCaptcha(200, 80);
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lineCaptcha.setGenerator(new MathGenerator());
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lineCaptcha.setTextAlpha(0.8f);
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lineCaptcha.write("f:/captcha/math.png");
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}
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@Test
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@Ignore
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public void lineCaptchaTest2() {
|
||||
@Test
|
||||
@Ignore
|
||||
public void lineCaptchaTest2() {
|
||||
|
||||
// 定义图形验证码的长和宽
|
||||
LineCaptcha lineCaptcha = CaptchaUtil.createLineCaptcha(200, 100);
|
||||
// LineCaptcha lineCaptcha = new LineCaptcha(200, 100, 4, 150);
|
||||
// 图形验证码写出，可以写出到文件，也可以写出到流
|
||||
lineCaptcha.write("f:/captcha/line.png");
|
||||
Console.log(lineCaptcha.getCode());
|
||||
// 验证图形验证码的有效性，返回boolean值
|
||||
lineCaptcha.verify("1234");
|
||||
// 定义图形验证码的长和宽
|
||||
LineCaptcha lineCaptcha = CaptchaUtil.createLineCaptcha(200, 100);
|
||||
// LineCaptcha lineCaptcha = new LineCaptcha(200, 100, 4, 150);
|
||||
// 图形验证码写出，可以写出到文件，也可以写出到流
|
||||
lineCaptcha.write("f:/captcha/line.png");
|
||||
Console.log(lineCaptcha.getCode());
|
||||
// 验证图形验证码的有效性，返回boolean值
|
||||
lineCaptcha.verify("1234");
|
||||
|
||||
lineCaptcha.createCode();
|
||||
lineCaptcha.write("f:/captcha/line2.png");
|
||||
Console.log(lineCaptcha.getCode());
|
||||
// 验证图形验证码的有效性，返回boolean值
|
||||
lineCaptcha.verify("1234");
|
||||
}
|
||||
lineCaptcha.createCode();
|
||||
lineCaptcha.write("f:/captcha/line2.png");
|
||||
Console.log(lineCaptcha.getCode());
|
||||
// 验证图形验证码的有效性，返回boolean值
|
||||
lineCaptcha.verify("1234");
|
||||
}
|
||||
|
||||
@Test
|
||||
@Ignore
|
||||
public void circleCaptchaTest() {
|
||||
@Test
|
||||
@Ignore
|
||||
public void circleCaptchaTest() {
|
||||
|
||||
// 定义图形验证码的长和宽
|
||||
CircleCaptcha captcha = CaptchaUtil.createCircleCaptcha(200, 100, 4, 20);
|
||||
// CircleCaptcha captcha = new CircleCaptcha(200, 100, 4, 20);
|
||||
// 图形验证码写出，可以写出到文件，也可以写出到流
|
||||
captcha.write("f:/captcha/circle.png");
|
||||
// 验证图形验证码的有效性，返回boolean值
|
||||
captcha.verify("1234");
|
||||
}
|
||||
// 定义图形验证码的长和宽
|
||||
CircleCaptcha captcha = CaptchaUtil.createCircleCaptcha(200, 100, 4, 20);
|
||||
// CircleCaptcha captcha = new CircleCaptcha(200, 100, 4, 20);
|
||||
// 图形验证码写出，可以写出到文件，也可以写出到流
|
||||
captcha.write("f:/captcha/circle.png");
|
||||
// 验证图形验证码的有效性，返回boolean值
|
||||
captcha.verify("1234");
|
||||
}
|
||||
|
||||
@Test
|
||||
@Ignore
|
||||
public void ShearCaptchaTest() {
|
||||
@Test
|
||||
@Ignore
|
||||
public void ShearCaptchaTest() {
|
||||
|
||||
// 定义图形验证码的长和宽
|
||||
ShearCaptcha captcha = CaptchaUtil.createShearCaptcha(203, 100, 4, 4);
|
||||
// ShearCaptcha captcha = new ShearCaptcha(200, 100, 4, 4);
|
||||
// 图形验证码写出，可以写出到文件，也可以写出到流
|
||||
captcha.write("f:/captcha/shear.png");
|
||||
// 验证图形验证码的有效性，返回boolean值
|
||||
captcha.verify("1234");
|
||||
}
|
||||
// 定义图形验证码的长和宽
|
||||
ShearCaptcha captcha = CaptchaUtil.createShearCaptcha(203, 100, 4, 4);
|
||||
// ShearCaptcha captcha = new ShearCaptcha(200, 100, 4, 4);
|
||||
// 图形验证码写出，可以写出到文件，也可以写出到流
|
||||
captcha.write("f:/captcha/shear.png");
|
||||
// 验证图形验证码的有效性，返回boolean值
|
||||
captcha.verify("1234");
|
||||
}
|
||||
|
||||
@Test
|
||||
@Ignore
|
||||
public void ShearCaptchaWithMathTest() {
|
||||
// 定义图形验证码的长和宽
|
||||
ShearCaptcha captcha = CaptchaUtil.createShearCaptcha(200, 45, 4, 4);
|
||||
captcha.setGenerator(new MathGenerator());
|
||||
// ShearCaptcha captcha = new ShearCaptcha(200, 100, 4, 4);
|
||||
// 图形验证码写出，可以写出到文件，也可以写出到流
|
||||
captcha.write("f:/captcha/shear_math.png");
|
||||
// 验证图形验证码的有效性，返回boolean值
|
||||
captcha.verify("1234");
|
||||
}
|
||||
@Test
|
||||
@Ignore
|
||||
public void ShearCaptchaWithMathTest() {
|
||||
// 定义图形验证码的长和宽
|
||||
ShearCaptcha captcha = CaptchaUtil.createShearCaptcha(200, 45, 4, 4);
|
||||
captcha.setGenerator(new MathGenerator());
|
||||
// ShearCaptcha captcha = new ShearCaptcha(200, 100, 4, 4);
|
||||
// 图形验证码写出，可以写出到文件，也可以写出到流
|
||||
captcha.write("f:/captcha/shear_math.png");
|
||||
// 验证图形验证码的有效性，返回boolean值
|
||||
captcha.verify("1234");
|
||||
}
|
||||
|
||||
@Test
|
||||
@Ignore
|
||||
public void GifCaptchaTest() {
|
||||
GifCaptcha captcha = CaptchaUtil.createGifCaptcha(200, 100, 4);
|
||||
captcha.write("f:/gif_captcha.gif");
|
||||
assert captcha.verify(captcha.getCode());
|
||||
}
|
||||
}
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user