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♻️ Refactoring code. spring-boot-stater
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@lltx
lltx committed Jul 31, 2020
1 parent 1ffd657 commit 218db48
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Showing 28 changed files with 2,975 additions and 0 deletions.
23 changes: 23 additions & 0 deletions captcha-core/pom.xml
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>

<parent>
<groupId>com.pig4cloud.plugin</groupId>
<artifactId>easy-captcha</artifactId>
<version>2.2.0</version>
</parent>
<artifactId>captcha-core</artifactId>
<name>captcha-core</name>
<packaging>jar</packaging>

<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
</dependencies>

</project>
108 changes: 108 additions & 0 deletions captcha-core/src/main/java/com/pig4cloud/captcha/ArithmeticCaptcha.java
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package com.pig4cloud.captcha;

import com.pig4cloud.captcha.base.ArithmeticCaptchaAbstract;

import javax.imageio.ImageIO;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.io.OutputStream;

/**
* png格式验证码 Created by 王帆 on 2018-07-27 上午 10:08.
*/
public class ArithmeticCaptcha extends ArithmeticCaptchaAbstract {

public ArithmeticCaptcha() {
}

public ArithmeticCaptcha(int width, int height) {
this();
setWidth(width);
setHeight(height);
}

public ArithmeticCaptcha(int width, int height, int len) {
this(width, height);
setLen(len);
}

public ArithmeticCaptcha(int width, int height, int len, Font font) {
this(width, height, len);
setFont(font);
}

/**
* 生成验证码
* @param out 输出流
* @return 是否成功
*/
@Override
public boolean out(OutputStream out) {
checkAlpha();
return graphicsImage(getArithmeticString().toCharArray(), out);
}

@Override
public String toBase64() {
return toBase64("data:image/png;base64,");
}

@Override
public String getContentType() {
return "image/png";
}

/**
* 生成验证码图形
* @param strs 验证码
* @param out 输出流
* @return boolean
*/
private boolean graphicsImage(char[] strs, OutputStream out) {
BufferedImage bi = null;
try {
bi = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
Graphics2D g2d = (Graphics2D) bi.getGraphics();
// 填充背景
g2d.setColor(Color.WHITE);
g2d.fillRect(0, 0, width, height);
// 抗锯齿
g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
// 画干扰圆
drawOval(2, g2d);
// 画字符串
g2d.setFont(getFont());
FontMetrics fontMetrics = g2d.getFontMetrics();
int fW = width / strs.length; // 每一个字符所占的宽度
int fSp = (fW - (int) fontMetrics.getStringBounds("8", g2d).getWidth()) / 2; // 字符的左右边距
for (int i = 0; i < strs.length; i++) {
g2d.setColor(color());
int fY = height
- ((height - (int) fontMetrics.getStringBounds(String.valueOf(strs[i]), g2d).getHeight()) >> 1); // 文字的纵坐标
g2d.drawString(String.valueOf(strs[i]), i * fW + fSp + 3, fY - 3);
}
g2d.dispose();
ImageIO.write(bi, "png", out);
out.flush();
return true;
}
catch (IOException e) {
e.printStackTrace();
}
finally {
try {
out.close();
}
catch (IOException e) {
e.printStackTrace();
}

if (bi != null) {
bi.getGraphics().dispose();
}
}
return false;
}

}
108 changes: 108 additions & 0 deletions captcha-core/src/main/java/com/pig4cloud/captcha/ChineseCaptcha.java
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package com.pig4cloud.captcha;

import com.pig4cloud.captcha.base.ChineseCaptchaAbstract;

import javax.imageio.ImageIO;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.io.OutputStream;

public class ChineseCaptcha extends ChineseCaptchaAbstract {

public ChineseCaptcha() {
super();
}

public ChineseCaptcha(int width, int height) {
this();
setWidth(width);
setHeight(height);
}

public ChineseCaptcha(int width, int height, int len) {
this(width, height);
setLen(len);
}

public ChineseCaptcha(int width, int height, int len, Font font) {
this(width, height, len);
setFont(font);
}

/**
* 生成验证码
* @param out 输出流
* @return 是否成功
*/
@Override
public boolean out(OutputStream out) {
return graphicsImage(textChar(), out);
}

@Override
public String toBase64() {
return toBase64("data:image/png;base64,");
}

@Override
public String getContentType() {
return "image/png";
}

/**
* 生成验证码图形
* @param strs 验证码
* @param out 输出流
* @return boolean
*/
private boolean graphicsImage(char[] strs, OutputStream out) {
BufferedImage bi = null;
try {
bi = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
Graphics2D g2d = (Graphics2D) bi.getGraphics();
// 填充背景
g2d.setColor(Color.WHITE);
g2d.fillRect(0, 0, width, height);
// 抗锯齿
g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
// 画干扰圆
drawOval(3, g2d);
// 画干扰线
g2d.setStroke(new BasicStroke(1.2f, BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL));
drawBesselLine(1, g2d);
// 画字符串
g2d.setFont(getFont());
FontMetrics fontMetrics = g2d.getFontMetrics();
int fW = width / strs.length; // 每一个字符所占的宽度
int fSp = (fW - (int) fontMetrics.getStringBounds("王", g2d).getWidth()) / 2; // 字符的左右边距
for (int i = 0; i < strs.length; i++) {
g2d.setColor(color());
int fY = height
- ((height - (int) fontMetrics.getStringBounds(String.valueOf(strs[i]), g2d).getHeight()) >> 1); // 文字的纵坐标
g2d.drawString(String.valueOf(strs[i]), i * fW + fSp + 3, fY - 3);
}
g2d.dispose();
ImageIO.write(bi, "png", out);
out.flush();
return true;
}
catch (IOException e) {
e.printStackTrace();
}
finally {
try {
out.close();
}
catch (IOException e) {
e.printStackTrace();
}

if (bi != null) {
bi.getGraphics().dispose();
}
}
return false;
}

}
147 changes: 147 additions & 0 deletions captcha-core/src/main/java/com/pig4cloud/captcha/ChineseGifCaptcha.java
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package com.pig4cloud.captcha;

import com.pig4cloud.captcha.base.ChineseCaptchaAbstract;
import com.pig4cloud.captcha.utils.GifEncoder;

import java.awt.*;
import java.awt.geom.CubicCurve2D;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.io.OutputStream;

public class ChineseGifCaptcha extends ChineseCaptchaAbstract {

public ChineseGifCaptcha() {
}

public ChineseGifCaptcha(int width, int height) {
setWidth(width);
setHeight(height);
}

public ChineseGifCaptcha(int width, int height, int len) {
this(width, height);
setLen(len);
}

public ChineseGifCaptcha(int width, int height, int len, Font font) {
this(width, height, len);
setFont(font);
}

@Override
public boolean out(OutputStream os) {
try {
char[] strs = textChar(); // 获取验证码数组
// 随机生成每个文字的颜色
Color fontColor[] = new Color[len];
for (int i = 0; i < len; i++) {
fontColor[i] = color();
}
// 随机生成贝塞尔曲线参数
int x1 = 5, y1 = num(5, height / 2);
int x2 = width - 5, y2 = num(height / 2, height - 5);
int ctrlx = num(width / 4, width / 4 * 3), ctrly = num(5, height - 5);
if (num(2) == 0) {
int ty = y1;
y1 = y2;
y2 = ty;
}
int ctrlx1 = num(width / 4, width / 4 * 3), ctrly1 = num(5, height - 5);
int[][] besselXY = new int[][] { { x1, y1 }, { ctrlx, ctrly }, { ctrlx1, ctrly1 }, { x2, y2 } };
// 开始画gif每一帧
GifEncoder gifEncoder = new GifEncoder();
gifEncoder.setQuality(180);
gifEncoder.setDelay(100);
gifEncoder.setRepeat(0);
gifEncoder.start(os);
for (int i = 0; i < len; i++) {
BufferedImage frame = graphicsImage(fontColor, strs, i, besselXY);
gifEncoder.addFrame(frame);
frame.flush();
}
gifEncoder.finish();
return true;
}
catch (Exception e) {
e.printStackTrace();
}
finally {
try {
os.close();
}
catch (IOException e) {
e.printStackTrace();
}
}
return false;
}

@Override
public String toBase64() {
return toBase64("data:image/gif;base64,");
}

@Override
public String getContentType() {
return "image/gif";
}

/**
* 画随机码图
* @param fontColor 随机字体颜色
* @param strs 字符数组
* @param flag 透明度
* @param besselXY 干扰线参数
* @return BufferedImage
*/
private BufferedImage graphicsImage(Color[] fontColor, char[] strs, int flag, int[][] besselXY) {
BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
Graphics2D g2d = (Graphics2D) image.getGraphics();
// 填充背景颜色
g2d.setColor(Color.WHITE);
g2d.fillRect(0, 0, width, height);
// 抗锯齿
g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
// 画干扰圆圈
g2d.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.1f * num(10))); // 设置透明度
drawOval(2, g2d);
// 画干扰线
g2d.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.7f)); // 设置透明度
g2d.setStroke(new BasicStroke(1.2f, BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL));
g2d.setColor(fontColor[0]);
CubicCurve2D shape = new CubicCurve2D.Double(besselXY[0][0], besselXY[0][1], besselXY[1][0], besselXY[1][1],
besselXY[2][0], besselXY[2][1], besselXY[3][0], besselXY[3][1]);
g2d.draw(shape);
// 画验证码
g2d.setFont(getFont());
FontMetrics fontMetrics = g2d.getFontMetrics();
int fW = width / strs.length; // 每一个字符所占的宽度
int fSp = (fW - (int) fontMetrics.getStringBounds("W", g2d).getWidth()) / 2; // 字符的左右边距
for (int i = 0; i < strs.length; i++) {
// 设置透明度
AlphaComposite ac3 = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, getAlpha(flag, i));
g2d.setComposite(ac3);
g2d.setColor(fontColor[i]);
int fY = height
- ((height - (int) fontMetrics.getStringBounds(String.valueOf(strs[i]), g2d).getHeight()) >> 1); // 文字的纵坐标
g2d.drawString(String.valueOf(strs[i]), i * fW + fSp - 3, fY - 3);
}
g2d.dispose();
return image;
}

/**
* 获取透明度,从0到1,自动计算步长
* @param i
* @param j
* @return 透明度
*/
private float getAlpha(int i, int j) {
int num = i + j;
float r = (float) 1 / (len - 1);
float s = len * r;
return num >= len ? (num * r - s) : num * r;
}

}
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