jfinal fügt die Implementierungsmethode für den Jcaptcha-Bestätigungscode hinzu

复制代码代码如下:

Paket com.g.core.common.JCaptcha;

import java.awt.Color;

java.awt.Font importieren;

import com.octo.captcha.component.image.backgroundgenerator.BackgroundGenerator;

import com.octo.captcha.component.image.backgroundgenerator.FileReaderRandomBackgroundGenerator;

import com.octo.captcha.component.image.color.RandomListColorGenerator;

import com.octo.captcha.component.image.fontgenerator.FontGenerator;

import com.octo.captcha.component.image.fontgenerator.RandomFontGenerator;

import com.octo.captcha.component.image.textpaster.DecoratedRandomTextPaster;

import com.octo.captcha.component.image.textpaster.TextPaster;

import com.octo.captcha.component.image.textpaster.textdecorator.TextDecorator;

import com.octo.captcha.component.image.wordtoimage.ComposedWordToImage;

import com.octo.captcha.component.image.wordtoimage.WordToImage;

import com.octo.captcha.component.word.wordgenerator.RandomWordGenerator;

import com.octo.captcha.component.word.wordgenerator.WordGenerator;

import com.octo.captcha.engine.image.ListImageCaptchaEngine;

import com.octo.captcha.image.gimpy.GimpyFactory;

/**

* 生成验证码图片

*/

öffentliche Klasse JCaptchaEngine erweitert ListImageCaptchaEngine {

public static final String IMAGE_CAPTCHA_KEY = "imageCaptcha";// ImageCaptcha对象存放在Session中的key

public static final String CAPTCHA_INPUT_NAME = "j_captcha";// 验证码输入表单名称

public static final String CAPTCHA_IMAGE_URL = "/captcha.jpg";// 验证码图片URL

private static final Integer MIN_WORD_LENGTH = 4;// 验证码最小长度

private static final Integer MAX_WORD_LENGTH = 4;// 验证码最大长度

private static final Integer IMAGE_HEIGHT = 28;// 验证码图片高度

private static final Integer IMAGE_WIDTH = 80;// 验证码图片宽度

private static final Integer MIN_FONT_SIZE = 16;// 验证码最小字体

private static final Integer MAX_FONT_SIZE = 16;// 验证码最大字体

private static final String RANDOM_WORD = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";// 随机字符

private static final String IMAGE_PATH = "./captcha/";// 随机背景图片路径

// 验证码随机字体

private static final Font[] RANDOM_FONT = new Font[] {

neue Schriftart("nyala", Font.BOLD, MIN_FONT_SIZE),

neue Schriftart("Arial", Font.BOLD, MIN_FONT_SIZE),

neue Schriftart("Bell MT", Font.BOLD, MIN_FONT_SIZE),

neue Schriftart("Credit Valley", Font.BOLD, MIN_FONT_SIZE),

neue Schriftart("Impact", Font.BOLD, MIN_FONT_SIZE)

};

// 验证码随机颜色

private statische endgültige Farbe[] RANDOM_COLOR = neue Farbe[] {

neue Farbe(255, 255, 255),

neue Farbe(255, 220, 220),

neue Farbe(220, 255, 255),

neue Farbe(220, 220, 255),

neue Farbe(255, 255, 220),

neue Farbe (220, 255, 220)

};

// 生成验证码

@Override

protected void buildInitialFactories() {

RandomListColorGenerator randomListColorGenerator = new RandomListColorGenerator(RANDOM_COLOR);

BackgroundGenerator backgroundGenerator = new FileReaderRandomBackgroundGenerator(IMAGE_WIDTH, IMAGE_HEIGHT, IMAGE_PATH);

WordGenerator wordGenerator = new RandomWordGenerator(RANDOM_WORD);

FontGenerator fontGenerator = new RandomFontGenerator(MIN_FONT_SIZE, MAX_FONT_SIZE, RANDOM_FONT);

TextDecorator[] textDecorator = new TextDecorator[] {};

TextPaster textPaster = new DecoratedRandomTextPaster(MIN_WORD_LENGTH, MAX_WORD_LENGTH, randomListColorGenerator, textDecorator);

WordToImage wordToImage = new ComposedWordToImage(fontGenerator, backgroundGenerator, textPaster);

addFactory(new GimpyFactory(wordGenerator, wordToImage));

}

}

复制代码代码如下:

Paket com.g.core.common.JCaptcha;

import com.octo.captcha.service.captchastore.FastHashMapCaptchaStore;

import com.octo.captcha.service.image.DefaultManageableImageCaptchaService;

import com.octo.captcha.service.image.ImageCaptchaService;

öffentliche Klasse CaptchaServiceSingleton {

private statische ImageCaptchaService-Instanz =null;

public CaptchaServiceSingleton() {

}

// 使用synchronized关键字解决线程不安全

öffentlicher synchronisierter statischer ImageCaptchaService getInstance() {

if (instance == null) {

Instanz = new DefaultManageableImageCaptchaService(new FastHashMapCaptchaStore(), new JCaptchaEngine(), 180,

100000, 75000);

}

Rückgabeinstanz;

}

}

复制代码代码如下:

Paket com.g.core.render;

import java.awt.image.BufferedImage;

import java.io.IOException;

import javax.imageio.ImageIO;

import javax.servlet.ServletOutputStream;

import com.g.core.common.JCaptcha.CaptchaServiceSingleton;

import com.jfinal.kit.StringKit;

import com.jfinal.render.Render;

öffentliche Klasse JCaptchaRender erweitert Render {

privater String randomCodeKey;

public JCaptchaRender(String randomCodeKey) {

if (StringKit.isBlank(randomCodeKey))

throw new IllegalArgumentException("randomCodeKey darf nicht leer sein");

this.randomCodeKey = randomCodeKey;

}

@Override

public void render() {

Response.setHeader("Cache-Control", "no-store");

Response.setHeader("Pragma", "no-cache");

Response.setDateHeader("Expires", 0);

Response.setContentType("image/jpeg");

ServletOutputStream sos = null;

versuchen {

sos = Response.getOutputStream();

//String captchaId = request.getSession(true).getId();

BufferedImage Challenge = (BufferedImage) CaptchaServiceSingleton.getInstance().getChallengeForID(randomCodeKey, request.getLocale());

ImageIO.write(challenge, "jpg", sos);

sos.flush();

} Catch (Ausnahme e) {

throw new RuntimeException(e);

}

Endlich {

if (sos != null)

Versuchen Sie es mit {sos.close();} Catch (IOException e) {e.printStackTrace();}

}

}

}

复制代码代码如下:

public void random_code() {

render(new JCaptchaRender(getSession().getId()));

}