增加内置字体，增加贝赛尔曲线干扰线

src/main/java/com/wf/captcha/ChineseCaptcha.java

@@ -1,5 +1,7 @@
 package com.wf.captcha;
 
+import com.wf.captcha.base.ChineseCaptchaAbstract;
+
 import javax.imageio.ImageIO;
 import java.awt.*;
 import java.awt.image.BufferedImage;
@@ -58,6 +60,7 @@ public class ChineseCaptcha extends ChineseCaptchaAbstract {
             g.fillRect(0, 0, width, height);
             // 抗锯齿
             g.setColor(color());
+            Font font = getFont();
             g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
             int hp = (height - font.getSize()) >> 1;
             int h = height - hp;

src/main/java/com/wf/captcha/ChineseGifCaptcha.java

@@ -1,5 +1,8 @@
 package com.wf.captcha;
 
+import com.wf.captcha.base.ChineseCaptchaAbstract;
+import com.wf.captcha.utils.GifEncoder;
+
 import java.awt.*;
 import java.awt.image.BufferedImage;
 import java.io.IOException;
@@ -73,6 +76,7 @@ public class ChineseGifCaptcha extends ChineseCaptchaAbstract {
         g2d.setColor(fontcolor);
         g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
         // 画验证码
+        Font font = getFont();
         int hp = (height - font.getSize()) >> 1;
         int h = height - hp;
         int w = width / strs.length;

src/main/java/com/wf/captcha/GifCaptcha.java

@@ -1,5 +1,8 @@
 package com.wf.captcha;
 
+import com.wf.captcha.base.Captcha;
+import com.wf.captcha.utils.GifEncoder;
+
 import java.awt.*;
 import java.awt.image.BufferedImage;
 import java.io.IOException;
@@ -84,6 +87,7 @@ public class GifCaptcha extends Captcha {
         // 随机画干扰线
         drawLine(2, g2d);
         // 画验证码
+        Font font = getFont();
         int hp = (height - font.getSize()) >> 1;
         int h = height - hp;
         int w = width / strs.length;

src/main/java/com/wf/captcha/SpecCaptcha.java

@@ -1,5 +1,7 @@
 package com.wf.captcha;
 
+import com.wf.captcha.base.Captcha;
+
 import java.awt.*;
 import java.awt.image.BufferedImage;
 import java.io.IOException;
@@ -40,7 +42,6 @@ public class SpecCaptcha extends Captcha {
      */
     @Override
     public boolean out(OutputStream out) {
-        checkAlpha();
         return graphicsImage(textChar(), out);
     }
 
@@ -52,51 +53,51 @@ public class SpecCaptcha extends Captcha {
      * @return boolean
      */
     private boolean graphicsImage(char[] strs, OutputStream out) {
-        boolean ok;
         try {
             BufferedImage bi = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
             Graphics2D g = (Graphics2D) bi.getGraphics();
+            // 填充背景
             g.setColor(Color.WHITE);
             g.fillRect(0, 0, width, height);
             // 抗锯齿
             g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
             g.setStroke(new BasicStroke(1.3f, BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL));
             // 随机画干扰线
-            drawLine(3, g);
+            // drawLine(3, g);
             // 随机画干扰圆
-            drawOval(8, g);
+            // drawOval(8, g);
+            drawBesselLine(2, g);
             // 画字符串
-            AlphaComposite ac3 = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.8f);// 指定透明度
-            g.setComposite(ac3);
-            int hp = (height - font.getSize()) >> 1;
-            int h = height - hp;
-            int w = width / strs.length;
-            int sp = (w - font.getSize()) / 2;
+            // AlphaComposite ac3 = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.8f);// 指定透明度
+            // g.setComposite(ac3);
+            g.setFont(getFont());
+            int fontSize = getFont().getSize();
+            int fY = height - ((height - fontSize) >> 1);  // 文字的纵坐标
+            int fW = width / strs.length;  // 每一个字符所占的宽度
+            int fSp = (fW - fontSize) / 2;  // 字符的左右边距
             for (int i = 0; i < strs.length; i++) {
-                g.setColor(new Color(20 + num(110), 20 + num(110), 20 + num(110)));
+                g.setColor(color());
                 // 计算坐标
-                int x = i * w + sp + num(3);
-                int y = h - num(3, 6);
-                if (x < 8) {
+                int x = i * fW + fSp;
+                int y = fY/* - num(3, 6)*/;
+                /*if (x < 8) {
                     x = 8;
                 }
-                if (x + font.getSize() > width) {
-                    x = width - font.getSize();
-                }
-                if (y > height) {
+                if (x + fontSize > width) {
+                    x = width - fontSize;
+                }*/
+                /*if (y > height) {
                     y = height;
                 }
-                if (y - font.getSize() < 0) {
-                    y = font.getSize();
-                }
-                g.setFont(font.deriveFont(num(2) == 0 ? Font.PLAIN : Font.ITALIC));
+                if (y - fontSize < 0) {
+                    y = fontSize;
+                }*/
                 g.drawString(String.valueOf(strs[i]), x, y);
             }
             ImageIO.write(bi, "png", out);
             out.flush();
-            ok = true;
+            return true;
         } catch (IOException e) {
-            ok = false;
             e.printStackTrace();
         } finally {
             try {
@@ -105,6 +106,6 @@ public class SpecCaptcha extends Captcha {
                 e.printStackTrace();
             }
         }
-        return ok;
+        return false;
     }
 }

src/main/java/com/wf/captcha/base/Captcha.java

@@ -1,6 +1,10 @@
-package com.wf.captcha;
+package com.wf.captcha.base;
 
 import java.awt.*;
+import java.awt.geom.CubicCurve2D;
+import java.awt.geom.QuadCurve2D;
+import java.io.File;
+import java.io.IOException;
 import java.io.OutputStream;
 
 /**
@@ -8,20 +12,33 @@ import java.io.OutputStream;
  * Created by 王帆 on 2018-07-27 上午 10:08.
  */
 public abstract class Captcha extends Randoms {
-    protected Font font = new Font("Arial", Font.BOLD, 32); // 字体Verdana
-    protected int len = 4; // 验证码随机字符长度
-    protected int width = 130; // 验证码显示宽度
-    protected int height = 48; // 验证码显示高度
-    protected String chars = null; // 当前验证码
-    protected int charType = TYPE_DEFAULT;  // 验证码类型，1字母数字混合，2纯数字，3纯字母
+    // 常用颜色
+    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}};
+    // 验证码文本类型
     public static final int TYPE_DEFAULT = 1;  // 字母数字混合
     public static final int TYPE_ONLY_NUMBER = 2;  // 纯数字
     public static final int TYPE_ONLY_CHAR = 3;  // 纯字母
     public static final int TYPE_ONLY_UPPER = 4;  // 纯大写字母
     public static final int TYPE_ONLY_LOWER = 5;  // 纯小写字母
     public static final int TYPE_NUM_AND_UPPER = 6;  // 数字大写字母
-    // 常用颜色
-    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}};
+    // 内置字体
+    public static final int FONT_1 = 0;
+    public static final int FONT_2 = 1;
+    public static final int FONT_3 = 2;
+    public static final int FONT_4 = 3;
+    public static final int FONT_5 = 4;
+    public static final int FONT_6 = 5;
+    public static final int FONT_7 = 6;
+    public static final int FONT_8 = 7;
+    public static final int FONT_9 = 8;
+    public static final int FONT_10 = 9;
+    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"};
+    private Font font = null; // 验证码的字体
+    protected int len = 5; // 验证码随机字符长度
+    protected int width = 130; // 验证码显示宽度
+    protected int height = 48; // 验证码显示高度
+    protected int charType = TYPE_DEFAULT;  // 验证码类型
+    protected String chars = null; // 当前验证码
 
     /**
      * 生成随机验证码
@@ -112,7 +129,7 @@ public abstract class Captcha extends Randoms {
     }
 
     /**
-     * 检查验证码是否生成，没有这立即生成
+     * 检查验证码是否生成，没有则立即生成
      */
     public void checkAlpha() {
         if (chars == null) {
@@ -175,7 +192,53 @@ public abstract class Captcha extends Randoms {
         }
     }
 
+    /**
+     * 随机画贝塞尔曲线
+     *
+     * @param num 数量
+     * @param g   Graphics2D
+     */
+    public void drawBesselLine(int num, Graphics2D g) {
+        drawBesselLine(num, null, g);
+    }
+
+    /**
+     * 随机画贝塞尔曲线
+     *
+     * @param num   数量
+     * @param color 颜色
+     * @param g     Graphics2D
+     */
+    public void drawBesselLine(int num, Color color, Graphics2D g) {
+        for (int i = 0; i < num; i++) {
+            g.setColor(color == null ? color() : color);
+            int x1 = 5;
+            int y1 = num(5, height - 5);
+            int x2 = width - 5;
+            int y2 = num(5, height - 5);
+            int ctrlx = num(5, width - 5);
+            int ctrly = num(5, height - 5);
+            if (num(2) == 0) {  // 二阶贝塞尔曲线
+                QuadCurve2D shape = new QuadCurve2D.Double();
+                shape.setCurve(x1, y1, ctrlx, ctrly, x2, y2);
+                g.draw(shape);
+            } else {  // 三阶贝塞尔曲线
+                int ctrlx1 = num(5, width - 5);
+                int ctrly1 = num(5, height - 5);
+                CubicCurve2D shape = new CubicCurve2D.Double(x1, y1, ctrlx, ctrly, ctrlx1, ctrly1, x2, y2);
+                g.draw(shape);
+            }
+        }
+    }
+
     public Font getFont() {
+        if (font == null) {
+            try {
+                setFont(FONT_1);
+            } catch (Exception e) {
+                setFont(new Font("Arial", Font.BOLD, 32));
+            }
+        }
         return font;
     }
 
@@ -183,6 +246,14 @@ public abstract class Captcha extends Randoms {
         this.font = font;
     }
 
+    public void setFont(int font) throws IOException, FontFormatException {
+        setFont(font, Font.BOLD, 32f);
+    }
+
+    public void setFont(int font, int style, float size) throws IOException, FontFormatException {
+        this.font = Font.createFont(Font.TRUETYPE_FONT, new File(getClass().getResource("/" + FONT_NAMES[font]).getFile())).deriveFont(style, size);
+    }
+
     public int getLen() {
         return len;
     }

src/main/java/com/wf/captcha/base/ChineseCaptchaAbstract.java

@@ -1,4 +1,6 @@
-package com.wf.captcha;
+package com.wf.captcha.base;
+
+import com.wf.captcha.base.Captcha;
 
 import java.awt.*;
 

src/main/java/com/wf/captcha/base/Randoms.java

@@ -1,4 +1,4 @@
-package com.wf.captcha;
+package com.wf.captcha.base;
 
 import java.util.Random;
 

src/main/java/com/wf/captcha/utils/CaptchaUtil.java

@@ -6,7 +6,7 @@ import java.io.IOException;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 
-import com.wf.captcha.Captcha;
+import com.wf.captcha.base.Captcha;
 import com.wf.captcha.GifCaptcha;
 import com.wf.captcha.SpecCaptcha;
 

src/main/java/com/wf/captcha/utils/Encoder.java

@@ -1,4 +1,4 @@
-package com.wf.captcha;
+package com.wf.captcha.utils;
 
 import java.io.IOException;
 import java.io.OutputStream;

src/main/java/com/wf/captcha/utils/GifEncoder.java

@@ -1,4 +1,4 @@
-package com.wf.captcha;
+package com.wf.captcha.utils;
 
 import java.awt.*;
 import java.awt.image.BufferedImage;

src/main/java/com/wf/captcha/utils/Quant.java

@@ -1,4 +1,4 @@
-package com.wf.captcha;
+package com.wf.captcha.utils;
 
 /**
  *

src/test/java/com/wf/captcha/CaptchaTest.java

@@ -1,9 +1,15 @@
 package com.wf.captcha;
 
+import com.wf.captcha.base.Captcha;
 import org.junit.Test;
 
+import javax.imageio.ImageIO;
+import java.awt.*;
+import java.awt.geom.QuadCurve2D;
+import java.awt.image.BufferedImage;
 import java.io.File;
 import java.io.FileOutputStream;
+import java.io.IOException;
 
 /**
  * 测试类
@@ -13,12 +19,13 @@ public class CaptchaTest {
 
     @Test
     public void test() throws Exception {
-        /*for (int i = 0; i < 5; i++) {
+        for (int i = 0; i < 5; i++) {
             SpecCaptcha specCaptcha = new SpecCaptcha();
-            specCaptcha.setCharType(Captcha.TYPE_ONLY_UPPER);
+            // specCaptcha.setCharType(Captcha.TYPE_ONLY_UPPER);
             System.out.println(specCaptcha.text());
+            // specCaptcha.setFont(Font.createFont(Font.TRUETYPE_FONT, new File(getClass().getResource("/actionj.ttf").getFile())).deriveFont(Font.BOLD, 32));
             specCaptcha.out(new FileOutputStream(new File("D:/Java/aa" + i + ".png")));
-        }*/
+        }
     }
 
     @Test
@@ -48,4 +55,62 @@ public class CaptchaTest {
         }*/
     }
 
+    @Test
+    public void test2() throws Exception {
+        String[] colors = new String[]{"#8cc540", "#009f5d", "#019fa0", "#019fde", "#007cdc", "#887ddd", "#cd7bdd", "#ff5675", "#ff1244", "#ff8345", "#f8bd0b", "#d1d2d4"};
+        String[] fonts = new String[]{"actionj.ttf", "epilog.ttf", "fresnel.ttf", "headache.ttf", "lexo.ttf", "prefix.ttf", "progbot.ttf", "ransom.ttf", "robot.ttf", "scandal.ttf"};
+        int i = 0;
+        for (String f : fonts) {
+            i++;
+            FileOutputStream out = new FileOutputStream(new File("D:/Java/aa" + i + ".png"));
+            try {
+                int width = 130, height = 48;
+                BufferedImage bi = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
+                Graphics2D g = (Graphics2D) bi.getGraphics();
+                g.setColor(Color.WHITE);
+                g.fillRect(0, 0, width, height);
+                // 抗锯齿
+                g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
+                g.setStroke(new BasicStroke(1.3f, BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL));
+                // 画字符串
+                float fontSize = 32f;
+                Font font = Font.createFont(Font.TRUETYPE_FONT, new File(getClass().getResource("/" + f).getFile())).deriveFont(Font.BOLD, fontSize);
+                g.setFont(font);
+                char[] chars = "N4WbS".toCharArray();
+                float sp = (width / chars.length - fontSize) / 2;
+                int j = 0;
+                for (char c : chars) {
+                    j++;
+                    g.setColor(Color.getColor(colors[j]));
+                    float x = sp * j + fontSize * (j - 1);
+                    float y = (height - fontSize) / 2 + fontSize;
+                    System.out.println(x + "-" + y);
+                    g.drawString(String.valueOf(c), x, y);
+                }
+                g.drawString("Hello", 8, 37);
+                //
+                QuadCurve2D shape = new QuadCurve2D.Double();
+                shape.setCurve(8, 38, 38, 10, 120, 40);
+                g.draw(shape);
+                ImageIO.write(bi, "png", out);
+                out.flush();
+            } catch (IOException e) {
+                e.printStackTrace();
+            } finally {
+                try {
+                    out.close();
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
+            }
+        }
+    }
+
+    @Test
+    public void test3() throws Exception {
+        String filePath = getClass().getResource("/actionj.ttf").getFile();
+        System.out.println(filePath);
+    }
+
+
 }