增加内置字体，增加贝赛尔曲线干扰线
This commit is contained in:
whvcse@foxmail.com
288
src/main/java/com/wf/captcha/base/Captcha.java
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288
src/main/java/com/wf/captcha/base/Captcha.java
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package com.wf.captcha.base;
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import java.awt.*;
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import java.awt.geom.CubicCurve2D;
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import java.awt.geom.QuadCurve2D;
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import java.io.File;
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import java.io.IOException;
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import java.io.OutputStream;
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/**
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* 验证码抽象类
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* Created by 王帆 on 2018-07-27 上午 10:08.
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*/
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public abstract class Captcha extends Randoms {
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// 常用颜色
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public static final int[][] COLOR = {{0, 135, 255}, {51, 153, 51}, {255, 102, 102}, {255, 153, 0}, {153, 102, 0}, {153, 102, 153}, {51, 153, 153}, {102, 102, 255}, {0, 102, 204}, {204, 51, 51}, {0, 153, 204}, {0, 51, 102}};
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// 验证码文本类型
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public static final int TYPE_DEFAULT = 1; // 字母数字混合
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public static final int TYPE_ONLY_NUMBER = 2; // 纯数字
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public static final int TYPE_ONLY_CHAR = 3; // 纯字母
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public static final int TYPE_ONLY_UPPER = 4; // 纯大写字母
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public static final int TYPE_ONLY_LOWER = 5; // 纯小写字母
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public static final int TYPE_NUM_AND_UPPER = 6; // 数字大写字母
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// 内置字体
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public static final int FONT_1 = 0;
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public static final int FONT_2 = 1;
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public static final int FONT_3 = 2;
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public static final int FONT_4 = 3;
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public static final int FONT_5 = 4;
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public static final int FONT_6 = 5;
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public static final int FONT_7 = 6;
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public static final int FONT_8 = 7;
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public static final int FONT_9 = 8;
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public static final int FONT_10 = 9;
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private static final String[] FONT_NAMES = new String[]{"actionj.ttf", "epilog.ttf", "fresnel.ttf", "headache.ttf", "lexo.ttf", "prefix.ttf", "progbot.ttf", "ransom.ttf", "robot.ttf", "scandal.ttf"};
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private Font font = null; // 验证码的字体
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protected int len = 5; // 验证码随机字符长度
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protected int width = 130; // 验证码显示宽度
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protected int height = 48; // 验证码显示高度
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protected int charType = TYPE_DEFAULT; // 验证码类型
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protected String chars = null; // 当前验证码
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/**
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* 生成随机验证码
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*
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* @return 验证码字符数组
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*/
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protected char[] alphas() {
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char[] cs = new char[len];
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for (int i = 0; i < len; i++) {
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switch (charType) {
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case 2:
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cs[i] = alpha(numMaxIndex);
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break;
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case 3:
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cs[i] = alpha(charMinIndex, charMaxIndex);
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break;
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case 4:
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cs[i] = alpha(upperMinIndex, upperMaxIndex);
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break;
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case 5:
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cs[i] = alpha(lowerMinIndex, lowerMaxIndex);
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break;
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case 6:
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cs[i] = alpha(upperMaxIndex);
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break;
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default:
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cs[i] = alpha();
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}
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}
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chars = new String(cs);
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return cs;
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}
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/**
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* 给定范围获得随机颜色
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*
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* @param fc 0-255
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* @param bc 0-255
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* @return 随机颜色
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*/
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protected Color color(int fc, int bc) {
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if (fc > 255)
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fc = 255;
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if (bc > 255)
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bc = 255;
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int r = fc + num(bc - fc);
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int g = fc + num(bc - fc);
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int b = fc + num(bc - fc);
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return new Color(r, g, b);
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}
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/**
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* 获取随机常用颜色
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*
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* @return 随机颜色
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*/
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protected Color color() {
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int[] color = COLOR[num(COLOR.length)];
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return new Color(color[0], color[1], color[2]);
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}
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/**
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* 验证码输出,抽象方法，由子类实现
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*
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* @param os 输出流
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* @return 是否成功
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*/
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public abstract boolean out(OutputStream os);
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/**
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* 获取当前的验证码
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*
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* @return 字符串
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*/
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public String text() {
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checkAlpha();
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return chars;
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}
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/**
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* 获取当前验证码的字符数组
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*
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* @return 字符数组
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*/
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public char[] textChar() {
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checkAlpha();
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return chars.toCharArray();
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}
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/**
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* 检查验证码是否生成，没有则立即生成
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*/
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public void checkAlpha() {
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if (chars == null) {
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alphas(); // 生成验证码
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}
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}
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/**
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* 随机画干扰线
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*
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* @param num 数量
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* @param g Graphics2D
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*/
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public void drawLine(int num, Graphics2D g) {
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drawLine(num, null, g);
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}
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/**
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* 随机画干扰线
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*
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* @param num 数量
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* @param color 颜色
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* @param g Graphics2D
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*/
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public void drawLine(int num, Color color, Graphics2D g) {
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for (int i = 0; i < num; i++) {
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g.setColor(color == null ? color(150, 250) : color);
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int x1 = num(-10, width - 10);
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int y1 = num(5, height - 5);
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int x2 = num(10, width + 10);
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int y2 = num(2, height - 2);
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g.drawLine(x1, y1, x2, y2);
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}
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}
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/**
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* 随机画干扰圆
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*
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* @param num 数量
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* @param g Graphics2D
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*/
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public void drawOval(int num, Graphics2D g) {
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for (int i = 0; i < num; i++) {
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g.setColor(color(100, 250));
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g.drawOval(num(width), num(height), 10 + num(20), 10 + num(20));
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}
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}
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/**
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* 随机画干扰圆
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*
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* @param num 数量
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* @param color 颜色
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* @param g Graphics2D
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*/
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public void drawOval(int num, Color color, Graphics2D g) {
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for (int i = 0; i < num; i++) {
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g.setColor(color == null ? color(100, 250) : color);
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g.drawOval(num(width), num(height), 10 + num(20), 10 + num(20));
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}
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}
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/**
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* 随机画贝塞尔曲线
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*
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* @param num 数量
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* @param g Graphics2D
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*/
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public void drawBesselLine(int num, Graphics2D g) {
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drawBesselLine(num, null, g);
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}
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/**
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* 随机画贝塞尔曲线
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*
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* @param num 数量
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* @param color 颜色
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* @param g Graphics2D
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*/
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public void drawBesselLine(int num, Color color, Graphics2D g) {
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for (int i = 0; i < num; i++) {
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g.setColor(color == null ? color() : color);
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int x1 = 5;
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int y1 = num(5, height - 5);
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int x2 = width - 5;
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int y2 = num(5, height - 5);
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int ctrlx = num(5, width - 5);
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int ctrly = num(5, height - 5);
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if (num(2) == 0) { // 二阶贝塞尔曲线
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QuadCurve2D shape = new QuadCurve2D.Double();
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shape.setCurve(x1, y1, ctrlx, ctrly, x2, y2);
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g.draw(shape);
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} else { // 三阶贝塞尔曲线
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int ctrlx1 = num(5, width - 5);
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int ctrly1 = num(5, height - 5);
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CubicCurve2D shape = new CubicCurve2D.Double(x1, y1, ctrlx, ctrly, ctrlx1, ctrly1, x2, y2);
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g.draw(shape);
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}
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}
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}
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public Font getFont() {
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if (font == null) {
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try {
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setFont(FONT_1);
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} catch (Exception e) {
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setFont(new Font("Arial", Font.BOLD, 32));
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}
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}
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return font;
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}
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public void setFont(Font font) {
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this.font = font;
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}
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public void setFont(int font) throws IOException, FontFormatException {
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setFont(font, Font.BOLD, 32f);
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}
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public void setFont(int font, int style, float size) throws IOException, FontFormatException {
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this.font = Font.createFont(Font.TRUETYPE_FONT, new File(getClass().getResource("/" + FONT_NAMES[font]).getFile())).deriveFont(style, size);
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}
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public int getLen() {
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return len;
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}
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public void setLen(int len) {
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this.len = len;
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}
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public int getWidth() {
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return width;
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}
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public void setWidth(int width) {
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this.width = width;
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}
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public int getHeight() {
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return height;
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}
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public void setHeight(int height) {
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this.height = height;
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}
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public int getCharType() {
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return charType;
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}
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public void setCharType(int charType) {
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this.charType = charType;
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}
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}
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@@ -0,0 +1,52 @@
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package com.wf.captcha.base;
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import com.wf.captcha.base.Captcha;
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import java.awt.*;
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public abstract class ChineseCaptchaAbstract extends Captcha {
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// 常用汉字
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public static final String DELTA = "\u7684\u4e00\u4e86\u662f\u6211\u4e0d\u5728\u4eba\u4eec\u6709\u6765\u4ed6\u8fd9\u4e0a\u7740\u4e2a\u5730\u5230\u5927\u91cc\u8bf4\u5c31\u53bb\u5b50\u5f97\u4e5f\u548c\u90a3\u8981\u4e0b\u770b\u5929\u65f6\u8fc7\u51fa\u5c0f\u4e48\u8d77\u4f60\u90fd\u628a\u597d\u8fd8\u591a\u6ca1\u4e3a\u53c8\u53ef\u5bb6\u5b66\u53ea\u4ee5\u4e3b\u4f1a\u6837\u5e74\u60f3\u751f\u540c\u8001\u4e2d\u5341\u4ece\u81ea\u9762\u524d\u5934\u9053\u5b83\u540e\u7136\u8d70\u5f88\u50cf\u89c1\u4e24\u7528\u5979\u56fd\u52a8\u8fdb\u6210\u56de\u4ec0\u8fb9\u4f5c\u5bf9\u5f00\u800c\u5df1\u4e9b\u73b0\u5c71\u6c11\u5019\u7ecf\u53d1\u5de5\u5411\u4e8b\u547d\u7ed9\u957f\u6c34\u51e0\u4e49\u4e09\u58f0\u4e8e\u9ad8\u624b\u77e5\u7406\u773c\u5fd7\u70b9\u5fc3\u6218\u4e8c\u95ee\u4f46\u8eab\u65b9\u5b9e\u5403\u505a\u53eb\u5f53\u4f4f\u542c\u9769\u6253\u5462\u771f\u5168\u624d\u56db\u5df2\u6240\u654c\u4e4b\u6700\u5149\u4ea7\u60c5\u8def\u5206\u603b\u6761\u767d\u8bdd\u4e1c\u5e2d\u6b21\u4eb2\u5982\u88ab\u82b1\u53e3\u653e\u513f\u5e38\u6c14\u4e94\u7b2c\u4f7f\u5199\u519b\u5427\u6587\u8fd0\u518d\u679c\u600e\u5b9a\u8bb8\u5feb\u660e\u884c\u56e0\u522b\u98de\u5916\u6811\u7269\u6d3b\u90e8\u95e8\u65e0\u5f80\u8239\u671b\u65b0\u5e26\u961f\u5148\u529b\u5b8c\u5374\u7ad9\u4ee3\u5458\u673a\u66f4\u4e5d\u60a8\u6bcf\u98ce\u7ea7\u8ddf\u7b11\u554a\u5b69\u4e07\u5c11\u76f4\u610f\u591c\u6bd4\u9636\u8fde\u8f66\u91cd\u4fbf\u6597\u9a6c\u54ea\u5316\u592a\u6307\u53d8\u793e\u4f3c\u58eb\u8005\u5e72\u77f3\u6ee1\u65e5\u51b3\u767e\u539f\u62ff\u7fa4\u7a76\u5404\u516d\u672c\u601d\u89e3\u7acb\u6cb3\u6751\u516b\u96be\u65e9\u8bba\u5417\u6839\u5171\u8ba9\u76f8\u7814\u4eca\u5176\u4e66\u5750\u63a5\u5e94\u5173\u4fe1\u89c9\u6b65\u53cd\u5904\u8bb0\u5c06\u5343\u627e\u4e89\u9886\u6216\u5e08\u7ed3\u5757\u8dd1\u8c01\u8349\u8d8a\u5b57\u52a0\u811a\u7d27\u7231\u7b49\u4e60\u9635\u6015\u6708\u9752\u534a\u706b\u6cd5\u9898\u5efa\u8d76\u4f4d\u5531\u6d77\u4e03\u5973\u4efb\u4ef6\u611f\u51c6\u5f20\u56e2\u5c4b\u79bb\u8272\u8138\u7247\u79d1\u5012\u775b\u5229\u4e16\u521a\u4e14\u7531\u9001\u5207\u661f\u5bfc\u665a\u8868\u591f\u6574\u8ba4\u54cd\u96ea\u6d41\u672a\u573a\u8be5\u5e76\u5e95\u6df1\u523b\u5e73\u4f1f\u5fd9\u63d0\u786e\u8fd1\u4eae\u8f7b\u8bb2\u519c\u53e4\u9ed1\u544a\u754c\u62c9\u540d\u5440\u571f\u6e05\u9633\u7167\u529e\u53f2\u6539\u5386\u8f6c\u753b\u9020\u5634\u6b64\u6cbb\u5317\u5fc5\u670d\u96e8\u7a7f\u5185\u8bc6\u9a8c\u4f20\u4e1a\u83dc\u722c\u7761\u5174\u5f62\u91cf\u54b1\u89c2\u82e6\u4f53\u4f17\u901a\u51b2\u5408\u7834\u53cb\u5ea6\u672f\u996d\u516c\u65c1\u623f\u6781\u5357\u67aa\u8bfb\u6c99\u5c81\u7ebf\u91ce\u575a\u7a7a\u6536\u7b97\u81f3\u653f\u57ce\u52b3\u843d\u94b1\u7279\u56f4\u5f1f\u80dc\u6559\u70ed\u5c55\u5305\u6b4c\u7c7b\u6e10\u5f3a\u6570\u4e61\u547c\u6027\u97f3\u7b54\u54e5\u9645\u65e7\u795e\u5ea7\u7ae0\u5e2e\u5566\u53d7\u7cfb\u4ee4\u8df3\u975e\u4f55\u725b\u53d6\u5165\u5cb8\u6562\u6389\u5ffd\u79cd\u88c5\u9876\u6025\u6797\u505c\u606f\u53e5\u533a\u8863\u822c\u62a5\u53f6\u538b\u6162\u53d4\u80cc\u7ec6";
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public ChineseCaptchaAbstract() {
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setFont(new Font("楷体", Font.PLAIN, 28));
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setLen(4);
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}
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/**
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* 生成随机验证码
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*
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* @return 验证码字符数组
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*/
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@Override
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protected char[] alphas() {
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char[] cs = new char[len];
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for (int i = 0; i < len; i++) {
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cs[i] = alphaHan();
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}
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chars = new String(cs);
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return cs;
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}
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/**
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* 返回随机汉字
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*
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* @return 随机汉字
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*/
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public static char alphaHan() {
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return DELTA.charAt(num(DELTA.length()));
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}
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@Override
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public void drawLine(int num, Color color, Graphics2D g) {
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for (int i = 0; i < num; i++) {
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g.setColor(color == null ? color(150, 250) : color);
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int x1 = num(-10, width / 3);
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int y1 = num(5, height - 5);
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int x2 = num(width / 3 * 2, width + 10);
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int y2 = num(2, height - 2);
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g.drawLine(x1, y1, x2, y2);
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}
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}
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}
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73
src/main/java/com/wf/captcha/base/Randoms.java
Normal file
73
src/main/java/com/wf/captcha/base/Randoms.java
Normal file
@@ -0,0 +1,73 @@
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package com.wf.captcha.base;
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import java.util.Random;
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/**
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* 随机数工具类
|
||||
* Created by 王帆 on 2018-07-27 上午 10:08.
|
||||
*/
|
||||
public class Randoms {
|
||||
protected static final Random RANDOM = new Random();
|
||||
// 定义验证码字符.去除了O和I等容易混淆的字母
|
||||
public static final char ALPHA[] = {'2', '3', '4', '5', '6', '7', '8', '9',
|
||||
'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'G', 'K', 'M', 'N', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
|
||||
'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'm', 'n', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z'};
|
||||
protected static final int numMaxIndex = 8; // 数字的最大索引，不包括最大值
|
||||
protected static final int charMinIndex = numMaxIndex; // 字符的最小索引，包括最小值
|
||||
protected static final int charMaxIndex = ALPHA.length; // 字符的最大索引，不包括最大值
|
||||
protected static final int upperMinIndex = charMinIndex; // 大写字符最小索引
|
||||
protected static final int upperMaxIndex = upperMinIndex + 23; // 大写字符最大索引
|
||||
protected static final int lowerMinIndex = upperMaxIndex; // 小写字母最小索引
|
||||
protected static final int lowerMaxIndex = charMaxIndex; // 小写字母最大索引
|
||||
|
||||
/**
|
||||
* 产生两个数之间的随机数
|
||||
*
|
||||
* @param min 最小值
|
||||
* @param max 最大值
|
||||
* @return 随机数
|
||||
*/
|
||||
public static int num(int min, int max) {
|
||||
return min + RANDOM.nextInt(max - min);
|
||||
}
|
||||
|
||||
/**
|
||||
* 产生0-num的随机数,不包括num
|
||||
*
|
||||
* @param num 最大值
|
||||
* @return 随机数
|
||||
*/
|
||||
public static int num(int num) {
|
||||
return RANDOM.nextInt(num);
|
||||
}
|
||||
|
||||
/**
|
||||
* 返回ALPHA中的随机字符
|
||||
*
|
||||
* @return 随机字符
|
||||
*/
|
||||
public static char alpha() {
|
||||
return ALPHA[num(ALPHA.length)];
|
||||
}
|
||||
|
||||
/**
|
||||
* 返回ALPHA中第0位到第num位的随机字符
|
||||
*
|
||||
* @param num 到第几位结束
|
||||
* @return 随机字符
|
||||
*/
|
||||
public static char alpha(int num) {
|
||||
return ALPHA[num(num)];
|
||||
}
|
||||
|
||||
/**
|
||||
* 返回ALPHA中第min位到第max位的随机字符
|
||||
*
|
||||
* @param min 从第几位开始
|
||||
* @param max 到第几位结束
|
||||
* @return 随机字符
|
||||
*/
|
||||
public static char alpha(int min, int max) {
|
||||
return ALPHA[num(min, max)];
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user