tamguo
7 years ago
parent
497cf62786
commit
a57a347bef
@ -0,0 +1,181 @@
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/**
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* Copyright (c) 2013-Now http://jeesite.com All rights reserved.
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*/
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package com.tamguo.config.image;
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import java.awt.Color;
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import java.awt.Graphics;
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import java.awt.image.BufferedImage;
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import java.io.IOException;
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import java.io.OutputStream;
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import java.util.Random;
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import org.patchca.background.BackgroundFactory;
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import org.patchca.color.ColorFactory;
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import org.patchca.filter.predefined.CurvesRippleFilterFactory;
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import org.patchca.filter.predefined.DiffuseRippleFilterFactory;
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import org.patchca.filter.predefined.DoubleRippleFilterFactory;
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import org.patchca.filter.predefined.MarbleRippleFilterFactory;
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import org.patchca.filter.predefined.WobbleRippleFilterFactory;
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import org.patchca.font.RandomFontFactory;
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import org.patchca.service.ConfigurableCaptchaService;
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import org.patchca.text.renderer.BestFitTextRenderer;
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import org.patchca.utils.encoder.EncoderHelper;
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import org.patchca.word.RandomWordFactory;
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/**
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* 验证码工具
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* @author ThinkGem
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* @version 2017年12月23日
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*/
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public class CaptchaUtils {
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private static Random random = new Random();
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private static ConfigurableCaptchaService ccs;
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private static WobbleRippleFilterFactory wrff; // 摆波纹
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private static DoubleRippleFilterFactory doff; // 双波纹
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private static CurvesRippleFilterFactory crff; // 曲线波纹
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private static DiffuseRippleFilterFactory drff; // 漫纹波
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private static MarbleRippleFilterFactory mrff; // 大理石
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private static void initialize(){
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if (ccs == null){
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synchronized (CaptchaUtils.class) {
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if (ccs == null){
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// 配置初始化
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ccs = new ConfigurableCaptchaService();
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// 设置图片大小
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ccs.setWidth(100);
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ccs.setHeight(28);
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// 设置文字数量
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RandomWordFactory wf = new RandomWordFactory();
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wf.setCharacters("ABDEFGHKMNRSWX2345689");
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wf.setMinLength(4);
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wf.setMaxLength(4);
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ccs.setWordFactory(wf);
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// 设置字体大小
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RandomFontFactory ff = new RandomFontFactory();
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ff.setMinSize(28);
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ff.setMaxSize(28);
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ccs.setFontFactory(ff);
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// 设置文字渲染边距
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BestFitTextRenderer tr = new BestFitTextRenderer();
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tr.setTopMargin(3);
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tr.setRightMargin(3);
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tr.setBottomMargin(3);
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tr.setLeftMargin(3);
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ccs.setTextRenderer(tr);
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// 设置字体颜色
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ccs.setColorFactory(new ColorFactory() {
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@Override
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public Color getColor(int x) {
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int r = random.nextInt(90);
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int g = random.nextInt(90);
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int b = random.nextInt(90);
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return new Color(r, g, b);
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}
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});
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// 设置背景
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ccs.setBackgroundFactory(new BackgroundFactory() {
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@Override
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public void fillBackground(BufferedImage image) {
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Graphics graphics = image.getGraphics();
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// 验证码图片的宽高
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int imgWidth = image.getWidth();
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int imgHeight = image.getHeight();
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// 填充为白色背景
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graphics.setColor(Color.WHITE);
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graphics.fillRect(0, 0, imgWidth, imgHeight);
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// 画 50 个噪点(颜色及位置随机)
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for (int i = 0; i < 50; i++) {
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// 随机颜色
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int rInt = random.nextInt(100)+50;
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int gInt = random.nextInt(100)+50;
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int bInt = random.nextInt(100)+50;
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graphics.setColor(new Color(rInt, gInt, bInt));
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// 随机位置
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int xInt = random.nextInt(imgWidth - 3);
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int yInt = random.nextInt(imgHeight - 2);
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// 随机旋转角度
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int sAngleInt = random.nextInt(360);
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int eAngleInt = random.nextInt(360);
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// 随机大小
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int wInt = random.nextInt(6);
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int hInt = random.nextInt(6);
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// 填充背景
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graphics.fillArc(xInt, yInt, wInt, hInt, sAngleInt, eAngleInt);
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// 画5条干扰线
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if (i % 10 == 0) {
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int xInt2 = random.nextInt(imgWidth);
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int yInt2 = random.nextInt(imgHeight);
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graphics.drawLine(xInt, yInt, xInt2, yInt2);
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}
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}
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}
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});
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// 效果初始化
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wrff = new WobbleRippleFilterFactory(); // 摆波纹
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doff = new DoubleRippleFilterFactory(); // 双波纹
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crff = new CurvesRippleFilterFactory(ccs.getColorFactory()); // 曲线波纹
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drff = new DiffuseRippleFilterFactory(); // 漫纹波
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mrff = new MarbleRippleFilterFactory(); // 大理石
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}
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}
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}
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}
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/**
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* 生成验证码
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* @param request
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* @param response
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* @throws IOException
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* @return 验证码字符
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*/
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public static String generateCaptcha(OutputStream outputStream) throws IOException{
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// 初始化设置
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initialize();
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// 随机选择一个样式
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switch (random.nextInt(3)) {
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case 0:
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ccs.setFilterFactory(wrff); // 摆波纹
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break;
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case 1:
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ccs.setFilterFactory(doff); // 双波纹
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break;
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case 2:
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ccs.setFilterFactory(crff); // 曲线波纹
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break;
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case 3:
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ccs.setFilterFactory(drff); // 漫纹波
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break;
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case 4:
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ccs.setFilterFactory(mrff); // 大理石
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break;
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}
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// 生成验证码
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String s = EncoderHelper.getChallangeAndWriteImage(ccs, "png", outputStream);
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// System.out.println(s);
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return s;
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}
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// public static void main(String[] args) throws IOException {
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//
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// FileOutputStream fos = new FileOutputStream("x:\\captcha.png");
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// String s = generateCaptcha(fos);
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// System.out.println(s);
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// fos.close();
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//
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// }
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}
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