增加中文验证码功能

README.md

@@ -13,19 +13,19 @@
 
 **gif效果：**
 
-![验证码](https://ws1.sinaimg.cn/large/006a7GCKgy1ftog813jz9g303m01cjrc.jpg) 
+![验证码](https://ws1.sinaimg.cn/large/006a7GCKly1ftpd30vgc2g303m01c0st.jpg) 
   
-![验证码](https://ws1.sinaimg.cn/large/006a7GCKgy1ftogh8z6hug303m01cdfs.jpg)
+![验证码](https://ws1.sinaimg.cn/large/006a7GCKly1ftpd22ixh9g303m01c3yj.jpg)
   
-![验证码](https://ws1.sinaimg.cn/large/006a7GCKgy1ftoghsymykg303m01c3yg.jpg)
+![验证码](https://ws1.sinaimg.cn/large/006a7GCKly1ftpd2k0gjug303m01ct8t.jpg)
 
 **png效果：**
 
-![验证码](https://ws1.sinaimg.cn/large/006a7GCKgy1ftogec24tbj303m01cmwx.jpg)
+![验证码](https://ws1.sinaimg.cn/large/006a7GCKly1ftpd09lqpaj303m01cwee.jpg)
   
-![验证码](https://ws1.sinaimg.cn/large/006a7GCKgy1ftogf2vvodj303m01cjr5.jpg)
+![验证码](https://ws1.sinaimg.cn/large/006a7GCKly1ftpd0tj6nhj303m01ct8m.jpg)
   
-![验证码](https://ws1.sinaimg.cn/large/006a7GCKgy1ftogfxh2rwj303m01cjr5.jpg)
+![验证码](https://ws1.sinaimg.cn/large/006a7GCKly1ftpd1cw3pcj303m01c0sn.jpg)
 
 
 **中文验证码：**
@@ -58,7 +58,7 @@ allprojects {
 在项目的build.gradle中添加
 ```text
 dependencies {
-    compile 'com.github.whvcse:EasyCaptcha:1.2.5'
+    compile 'com.github.whvcse:EasyCaptcha:1.3.0'
 }
 ```
 
@@ -77,7 +77,7 @@ dependencies {
        <dependency>
           <groupId>com.github.whvcse</groupId>
           <artifactId>EasyCaptcha</artifactId>
-          <version>1.2.5</version>
+          <version>1.3.0</version>
        </dependency>
     </dependencies>
 </project>
@@ -321,3 +321,8 @@ public class Test {
 
 &emsp;&emsp;分离项目建议不要存储在session中，存储在redis中。
 
+
+## 5.自定义效果
+
+参考源代码中的SpecCaptcha和GifCaptcha继承Captcha即可。
+

pom.xml

@@ -5,11 +5,11 @@
     <groupId>com.github.whvcse</groupId>
 
     <artifactId>EasyCaptcha</artifactId>
-    <version>1.2.5-RELEASE</version>
+    <version>1.3.0-RELEASE</version>
     <packaging>jar</packaging>
 
     <name>EasyCaptcha</name>
-    <description>Java图形验证码，支持gif验证码。</description>
+    <description>Java图形验证码，支持gif验证码、中文验证码，适用于Java Web、JavaSE项目。</description>
     <url>https://github.com/whvcse/EasyCaptcha</url>
 
     <licenses>

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

@@ -17,7 +17,10 @@ public abstract class Captcha extends Randoms {
     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
     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_CHAR = 3;  // 纯字母    // 常用颜色
+    // 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}};
+
 
     /**
      * 生成随机验证码
@@ -60,6 +63,16 @@ public abstract class Captcha extends Randoms {
         return new Color(r, g, b);
     }
 
+    /**
+     * 获取随机常用颜色
+     *
+     * @return 随机颜色
+     */
+    protected Color color() {
+        int[] color = COLOR[num(COLOR.length)];
+        return new Color(color[0], color[1], color[2]);
+    }
+
     /**
      * 验证码输出,抽象方法，由子类实现
      *

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

@@ -56,21 +56,36 @@ public class ChineseCaptcha extends ChineseCaptchaAbstract {
             int len = strs.length;
             g.setColor(Color.WHITE);
             g.fillRect(0, 0, width, height);
+            // 抗锯齿
             g.setColor(color());
             g.setFont(font);
-            int h = height - ((height - font.getSize()) >> 1);
-            int w = width / len;
-            // 抗锯齿
             g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
+            int hp = (height - font.getSize()) >> 1;
+            int h = height - hp;
+            int w = width / strs.length;
+            int sp = (w - font.getSize()) / 2;
             // 画字符串
             for (int i = 0; i < len; i++) {
-                int x = i * w + num(2, 6);
+                // 计算坐标
-                int y = h - num(2, 6);
+                int x = i * w + sp + num(-Math.abs(sp), Math.abs(sp));
+                int y = h + num(-Math.abs(hp), Math.abs(hp));
+                if (x < 0) {
+                    x = 0;
+                }
+                if (x + font.getSize() > width) {
+                    x = width - font.getSize();
+                }
+                if (y > height) {
+                    y = height;
+                }
+                if (y - font.getSize() < 0) {
+                    y = font.getSize();
+                }
                 g.drawString(String.valueOf(strs[i]), x, y);
             }
             // 随机画干扰线
             g.setStroke(new BasicStroke(1.25f, BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL));
-            for (int i = 0; i < 8; i++) {
+            for (int i = 0; i < 6; i++) {
                 ac3 = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.75f);  // 指定透明度
                 g.setComposite(ac3);
                 int x1 = num(-10, width - 10);

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

@@ -5,8 +5,6 @@ import java.awt.*;
 public abstract class ChineseCaptchaAbstract extends Captcha {
     // 常用汉字
     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";
-    // 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}};
 
     public ChineseCaptchaAbstract() {
         setFont(new Font("楷体", Font.PLAIN, 28));
@@ -28,16 +26,6 @@ public abstract class ChineseCaptchaAbstract extends Captcha {
         return cs;
     }
 
-    /**
-     * 获取随机颜色
-     *
-     * @return 随机颜色
-     */
-    protected Color color() {
-        int[] color = COLOR[num(COLOR.length)];
-        return new Color(color[0], color[1], color[2]);
-    }
-
     /**
      * 返回随机汉字
      *

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

@@ -69,23 +69,39 @@ public class ChineseGifCaptcha extends ChineseCaptchaAbstract {
         g2d.setColor(Color.WHITE);  // 填充背景颜色
         g2d.fillRect(0, 0, width, height);
         AlphaComposite ac3;
-        int h = height - ((height - font.getSize()) >> 1);
-        int w = width / len;
-        g2d.setFont(font);
-        g2d.setColor(fontcolor);
         // 抗锯齿
+        g2d.setColor(fontcolor);
+        g2d.setFont(font);
         g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
         // 画验证码
+        int hp = (height - font.getSize()) >> 1;
+        int h = height - hp;
+        int w = width / strs.length;
+        int sp = (w - font.getSize()) / 2;
         for (int i = 0; i < len; i++) {
             ac3 = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, getAlpha(flag, i));
             g2d.setComposite(ac3);
-            int x = i * w + num(2, 6);
+            // 计算坐标
-            g2d.drawString(String.valueOf(strs[i]), x, h - num(2, 6));
+            int x = i * w + sp + num(-Math.abs(sp), Math.abs(sp));
+            int y = h + num(-3, 3);
+            if (x < 0) {
+                x = 0;
+            }
+            if (x + font.getSize() > width) {
+                x = width - font.getSize();
+            }
+            if (y > height) {
+                y = height;
+            }
+            if (y - font.getSize() < 0) {
+                y = font.getSize();
+            }
+            g2d.drawString(String.valueOf(strs[i]), x, y);
         }
         // 随机画干扰线
         g2d.setStroke(new BasicStroke(1.2f, BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL));
-        for (int i = 0; i < 5; i++) {
+        for (int i = 0; i < 4; i++) {
-            ac3 = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.65f);
+            ac3 = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.55f);
             g2d.setComposite(ac3);
             int x1 = num(-10, width - 10);
             int y1 = num(5, height - 5);

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

@@ -73,32 +73,50 @@ public class GifCaptcha extends Captcha {
     private BufferedImage graphicsImage(Color[] fontcolor, char[] strs, int flag) {
         BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
         Graphics2D g2d = (Graphics2D) image.getGraphics();
-        g2d.setColor(Color.WHITE);  // 填充背景颜色
+        // 填充背景颜色
+        g2d.setColor(Color.WHITE);
         g2d.fillRect(0, 0, width, height);
-        AlphaComposite ac3;
+        // 抗锯齿
-        int h = height - ((height - font.getSize()) >> 1);
-        int w = width / len;
         g2d.setFont(font);
+        g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
         // 随机画干扰线
-        for (int i = 0; i < 8; i++) {
+        for (int i = 0; i < num(5, 12); i++) {
+            g2d.setStroke(new BasicStroke(1.1f + RANDOM.nextFloat() / 2, BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL));
+            g2d.setColor(color(150, 250));
             int x1 = num(-10, width - 10);
             int y1 = num(5, height - 5);
             int x2 = num(10, width + 10);
             int y2 = num(2, height - 2);
-            g2d.setColor(color(150, 250));
-            g2d.setStroke(new BasicStroke(1.3f));
             g2d.drawLine(x1, y1, x2, y2);
             // 画干扰圆圈
             g2d.setColor(color(100, 250));
-            g2d.setStroke(new BasicStroke(1.0f));
+            g2d.drawOval(num(width), num(height), 5 + num(25), 5 + num(25));
-            g2d.drawOval(num(width), num(height), 5 + num(10), 5 + num(10));
         }
         // 画验证码
-        for (int i = 0; i < len; i++) {
+        int hp = (height - font.getSize()) >> 1;
-            ac3 = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, getAlpha(flag, i));
+        int h = height - hp;
+        int w = width / strs.length;
+        int sp = (w - font.getSize()) / 2;
+        for (int i = 0; i < strs.length; i++) {
+            AlphaComposite ac3 = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, getAlpha(flag, i));
             g2d.setComposite(ac3);
             g2d.setColor(fontcolor[i]);
-            g2d.drawString(String.valueOf(strs[i]), (width - (len - i) * w) + (w - font.getSize()) + num(7, 11), h - num(2, 6));
+            // 计算坐标
+            int x = i * w + sp + num(-3, 3);
+            int y = h + num(-6, 0);
+            if (x < 0) {
+                x = 0;
+            }
+            if (x + font.getSize() > width) {
+                x = width - font.getSize();
+            }
+            if (y > height) {
+                y = height;
+            }
+            if (y - font.getSize() < 0) {
+                y = font.getSize();
+            }
+            g2d.drawString(String.valueOf(strs[i]), x, y);
         }
         g2d.dispose();
         return image;

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

@@ -57,32 +57,50 @@ public class SpecCaptcha extends Captcha {
         try {
             BufferedImage bi = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
             Graphics2D g = (Graphics2D) bi.getGraphics();
-            AlphaComposite ac3;
-            int len = strs.length;
             g.setColor(Color.WHITE);
             g.fillRect(0, 0, width, height);
+            // 抗锯齿
+            g.setFont(font);
+            g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
             // 随机画干扰线
             for (int i = 0; i < 12; i++) {
+                g.setColor(color(150, 250));
+                g.setStroke(new BasicStroke(1.1f + RANDOM.nextFloat() / 2, BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL));
                 int x1 = num(-10, width - 10);
                 int y1 = num(5, height - 5);
                 int x2 = num(10, width + 10);
                 int y2 = num(2, height - 2);
-                g.setColor(color(150, 250));
-                g.setStroke(new BasicStroke(1.3f));
                 g.drawLine(x1, y1, x2, y2);
                 // 画干扰圆圈
                 g.setColor(color(100, 250));
                 g.drawOval(num(width), num(height), 5 + num(25), 5 + num(25));
             }
-            g.setFont(font);
-            int h = height - ((height - font.getSize()) >> 1);
-            int w = width / len;
             // 画字符串
-            for (int i = 0; i < len; i++) {
+            AlphaComposite ac3 = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.75f);// 指定透明度
-                ac3 = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.75f);// 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;
+            for (int i = 0; i < strs.length; i++) {
                 g.setColor(new Color(20 + num(110), 20 + num(110), 20 + num(110)));
-                g.drawString(String.valueOf(strs[i]), (width - (len - i) * w) + (w - font.getSize()) + num(7, 11), h - num(2, 6));
+                // 计算坐标
+                int x = i * w + sp + num(-Math.abs(sp), Math.abs(sp));
+                int y = h + num(-Math.abs(hp), Math.abs(hp));
+                if (x < 0) {
+                    x = 0;
+                }
+                if (x + font.getSize() > width) {
+                    x = width - font.getSize();
+                }
+                if (y > height) {
+                    y = height;
+                }
+                if (y - font.getSize() < 0) {
+                    y = font.getSize();
+                }
+                System.out.println(x + "--" + y);
+                g.drawString(String.valueOf(strs[i]), x, y);
             }
             ImageIO.write(bi, "png", out);
             out.flush();

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

@@ -2,7 +2,6 @@ package com.wf.captcha;
 
 import org.junit.Test;
 
-import java.awt.*;
 import java.io.File;
 import java.io.FileOutputStream;
 
@@ -18,15 +17,17 @@ public class CaptchaTest {
             SpecCaptcha specCaptcha = new SpecCaptcha();
             //specCaptcha.setCharType(Captcha.TYPE_ONLY_NUMBER);
             System.out.println(specCaptcha.text());
-            //specCaptcha.out(new FileOutputStream(new File("C:/aa" + i + ".png")));
+            //  specCaptcha.out(new FileOutputStream(new File("C:/Java/aa" + i + ".png")));
         }
     }
 
     @Test
     public void testGIf() throws Exception {
+        for (int i = 0; i < 5; i++) {
             GifCaptcha gifCaptcha = new GifCaptcha(130, 48, 5);
             System.out.println(gifCaptcha.text());
-        //gifCaptcha.out(new FileOutputStream(new File("C:/aa.gif")));
+            // gifCaptcha.out(new FileOutputStream(new File("C:/Java/aa" + i + ".gif")));
+        }
     }
 
     @Test
@@ -42,6 +43,7 @@ public class CaptchaTest {
         ChineseGifCaptcha chineseGifCaptcha = new ChineseGifCaptcha();
         //chineseGifCaptcha.setFont(new Font("微软雅黑", Font.PLAIN, 30));
         System.out.println(chineseGifCaptcha.text());
-        chineseGifCaptcha.out(new FileOutputStream(new File("C:/Java/aa.gif")));
+        //chineseGifCaptcha.out(new FileOutputStream(new File("C:/Java/aa.gif")));
     }
+
 }