diff --git a/README.md b/README.md
index 5d5be8c..b4c84e7 100644
--- a/README.md
+++ b/README.md
@@ -28,6 +28,21 @@
+**中文验证码：**
+
+
+
+
+
+
+
+
+
+
+
+
+
+
## 3.导入项目
@@ -126,6 +141,7 @@ public class LoginController {
public JsonResult login(String username,String password,String code){
if (CaptchaUtil.ver(code, request)) {
+ CaptchaUtil.clear(request);
return JsonResult.error("验证码不正确");
}
}
@@ -148,6 +164,48 @@ public class MainController {
}
```
+### 3.5.不使用工具类
+
+ CaptchaUtil是为了简化操作，封装了生成验证码、存session、判断验证码等功能。CaptchaUtil使用的GifCaptcha
+生成的字母数字混合的gif验证码，如果需要设置更多的参数，请参照如下操作使用：
+
+```java
+@Controller
+public class MainController {
+
+ @RequestMapping("/images/captcha")
+ public void captcha(HttpServletRequest request, HttpServletResponse response) throws Exception {
+ // 设置请求头为输出图片类型
+ CaptchaUtil.setHeader(response);
+
+ // 三个参数分别为宽、高、位数
+ GifCaptcha gifCaptcha = new GifCaptcha(130, 48, 5);
+
+ // 设置字体
+ gifCaptcha.setFont(new Font("Verdana", Font.PLAIN, 32)); // 有默认字体，可以不用设置
+
+ // 设置类型，纯数字、纯字母、字母数字混合
+ gifCaptcha.setCharType(Captcha.TYPE_ONLY_NUMBER);
+
+ // 验证码存入session
+ request.getSession().setAttribute("captcha", gifCaptcha.text().toLowerCase());
+
+ // 输出图片流
+ gifCaptcha.out(response.getOutputStream());
+ }
+
+ @PostMapping("/login")
+ public JsonResult login(String username,String password,String code){
+ // 获取session中的验证码
+ String sessionCode = request.getSession().getAttribute("captcha");
+ // 判断验证码
+ if (code==null || !sessionCode.equals(code.trim().toLowerCase())) {
+ return JsonResult.error("验证码不正确");
+ }
+ }
+}
+```
+
## 4.更多设置
### 4.1.使用Gif验证码
@@ -211,3 +269,55 @@ public class Test {
TYPE_ONLY_CHAR | 纯字母
+### 4.4.中文验证码
+
+中文png验证码：
+
+```java
+public class Test {
+
+ public static void main(String[] args) {
+ OutputStream outputStream = new FileOutputStream(new File("D:/a/aa.png"));
+
+ // 三个参数分别为宽、高、位数
+ ChineseCaptcha chineseCaptcha = new ChineseCaptcha(130, 48, 4);
+
+ // 设置字体
+ chineseCaptcha.setFont(new Font("楷体", Font.PLAIN, 28)); // 有默认字体，可以不用设置
+
+ // 生成的验证码
+ String code = chineseCaptcha.text();
+
+ // 输出图片流
+ chineseCaptcha.out(outputStream);
+ }
+}
+```
+
+中文gif验证码：
+
+```java
+public class Test {
+
+ public static void main(String[] args) {
+ OutputStream outputStream = new FileOutputStream(new File("D:/a/aa.png"));
+
+ // 三个参数分别为宽、高、位数
+ ChineseGifCaptcha chineseGifCaptcha = new ChineseGifCaptcha(130, 48, 4);
+
+ // 设置字体
+ chineseGifCaptcha.setFont(new Font("楷体", Font.PLAIN, 28)); // 有默认字体，可以不用设置
+
+ // 生成的验证码
+ String code = chineseGifCaptcha.text();
+
+ // 输出图片流
+ chineseGifCaptcha.out(outputStream);
+ }
+}
+```
+
+### 4.5.前后端分离项目的使用
+
+ 分离项目建议不要存储在session中，存储在redis中。
+
diff --git a/pom.xml b/pom.xml
index f441d71..ea5863d 100644
--- a/pom.xml
+++ b/pom.xml
@@ -5,7 +5,7 @@
com.github.whvcse
EasyCaptcha
- 1.2.0-RELEASE
+ 1.2.5-RELEASE
jar
EasyCaptcha
diff --git a/src/main/java/com/wf/captcha/Captcha.java b/src/main/java/com/wf/captcha/Captcha.java
index 51989f1..58dfd76 100644
--- a/src/main/java/com/wf/captcha/Captcha.java
+++ b/src/main/java/com/wf/captcha/Captcha.java
@@ -13,7 +13,7 @@ public abstract class Captcha extends Randoms {
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
- private String chars = null; // 当前验证码
+ 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
public static final int TYPE_DEFAULT = 1; // 字母数字混合
public static final int TYPE_ONLY_NUMBER = 2; // 纯数字
@@ -25,8 +25,6 @@ public abstract class Captcha extends Randoms {
* @return 验证码字符数组
*/
protected char[] alphas() {
- "".toLowerCase();
- "".toUpperCase();
char[] cs = new char[len];
for (int i = 0; i < len; i++) {
switch (charType) {
diff --git a/src/main/java/com/wf/captcha/ChineseCaptcha.java b/src/main/java/com/wf/captcha/ChineseCaptcha.java
new file mode 100644
index 0000000..355c0eb
--- /dev/null
+++ b/src/main/java/com/wf/captcha/ChineseCaptcha.java
@@ -0,0 +1,99 @@
+package com.wf.captcha;
+
+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) {
+ checkAlpha();
+ return graphicsImage(textChar(), out);
+ }
+
+ /**
+ * 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) {
+ boolean ok;
+ 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);
+ 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);
+ // 画字符串
+ for (int i = 0; i < len; i++) {
+ int x = i * w + num(2, 6);
+ int y = h - num(2, 6);
+ 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++) {
+ ac3 = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.75f); // 指定透明度
+ g.setComposite(ac3);
+ 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.drawLine(x1, y1, x2, y2);
+ // 画干扰圆圈
+ g.drawOval(num(width), num(height), 5 + num(25), 5 + num(25));
+ }
+ ImageIO.write(bi, "png", out);
+ out.flush();
+ ok = true;
+ } catch (IOException e) {
+ ok = false;
+ e.printStackTrace();
+ } finally {
+ try {
+ out.close();
+ } catch (IOException e) {
+ e.printStackTrace();
+ }
+ }
+ return ok;
+ }
+}
diff --git a/src/main/java/com/wf/captcha/ChineseCaptchaAbstract.java b/src/main/java/com/wf/captcha/ChineseCaptchaAbstract.java
new file mode 100644
index 0000000..42997f4
--- /dev/null
+++ b/src/main/java/com/wf/captcha/ChineseCaptchaAbstract.java
@@ -0,0 +1,50 @@
+package com.wf.captcha;
+
+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));
+ setLen(4);
+ }
+
+ /**
+ * 生成随机验证码
+ *
+ * @return 验证码字符数组
+ */
+ @Override
+ protected char[] alphas() {
+ char[] cs = new char[len];
+ for (int i = 0; i < len; i++) {
+ cs[i] = alphaHan();
+ }
+ chars = new String(cs);
+ 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
+ *
+ * @return 随机汉字
+ */
+ public static char alphaHan() {
+ return DELTA.charAt(num(DELTA.length()));
+ }
+
+}
diff --git a/src/main/java/com/wf/captcha/ChineseGifCaptcha.java b/src/main/java/com/wf/captcha/ChineseGifCaptcha.java
new file mode 100644
index 0000000..c1c5e82
--- /dev/null
+++ b/src/main/java/com/wf/captcha/ChineseGifCaptcha.java
@@ -0,0 +1,114 @@
+package com.wf.captcha;
+
+import java.awt.*;
+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) {
+ checkAlpha();
+ boolean ok = false;
+ try {
+ char[] rands = textChar(); // 获取验证码数组
+ GifEncoder gifEncoder = new GifEncoder();
+ gifEncoder.start(os);
+ gifEncoder.setQuality(180);
+ gifEncoder.setDelay(100);
+ gifEncoder.setRepeat(0);
+ BufferedImage frame;
+ Color fontcolor = color();
+ for (int i = 0; i < len; i++) {
+ frame = graphicsImage(fontcolor, rands, i);
+ gifEncoder.addFrame(frame);
+ frame.flush();
+ }
+ gifEncoder.finish();
+ ok = true;
+ } finally {
+ try {
+ os.close();
+ } catch (IOException e) {
+ e.printStackTrace();
+ }
+ }
+ return ok;
+ }
+
+ /**
+ * 画随机码图
+ *
+ * @param fontcolor 随机字体颜色
+ * @param strs 字符数组
+ * @param flag 透明度使用
+ * @return BufferedImage
+ */
+ 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
+ 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.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
+ // 画验证码
+ 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);
+ g2d.drawString(String.valueOf(strs[i]), x, h - num(2, 6));
+ }
+ // 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++) {
+ ac3 = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.65f);
+ g2d.setComposite(ac3);
+ 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.drawLine(x1, y1, x2, y2);
+ // 画干扰圆圈
+ g2d.drawOval(num(width), num(height), 5 + num(10), 5 + num(10));
+ }
+ 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, s = (len + 1) * r;
+ return num > len ? (num * r - s) : num * r;
+ }
+}
diff --git a/src/main/java/com/wf/captcha/Randoms.java b/src/main/java/com/wf/captcha/Randoms.java
index 6a871c0..06a62c4 100644
--- a/src/main/java/com/wf/captcha/Randoms.java
+++ b/src/main/java/com/wf/captcha/Randoms.java
@@ -7,7 +7,7 @@ import java.util.Random;
* Created by 王帆 on 2018-07-27 上午 10:08.
*/
public class Randoms {
- private static final Random RANDOM = new Random();
+ protected static final Random RANDOM = new Random();
// 定义验证码字符.去除了O和I等容易混淆的字母
public static final char ALPHA[] = {'2', '3', '4', '5', '6', '7', '8', '9',
'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'G', 'K', 'M', 'N', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
diff --git a/src/main/java/com/wf/captcha/utils/CaptchaUtil.java b/src/main/java/com/wf/captcha/utils/CaptchaUtil.java
index 118da9e..b8b426f 100644
--- a/src/main/java/com/wf/captcha/utils/CaptchaUtil.java
+++ b/src/main/java/com/wf/captcha/utils/CaptchaUtil.java
@@ -73,12 +73,21 @@ public class CaptchaUtil {
captcha.out(response.getOutputStream());
}
+ /**
+ * 清除session中的验证码
+ *
+ * @param request HttpServletRequest
+ */
+ public static void clear(HttpServletRequest request) {
+ request.getSession().removeAttribute(SESSION_KEY);
+ }
+
/**
* 设置相应头
*
* @param response HttpServletResponse
*/
- private static void setHeader(HttpServletResponse response) {
+ public static void setHeader(HttpServletResponse response) {
response.setContentType("image/gif");
response.setHeader("Pragma", "No-cache");
response.setHeader("Cache-Control", "no-cache");
diff --git a/src/test/java/com/wf/captcha/CaptchaTest.java b/src/test/java/com/wf/captcha/CaptchaTest.java
index b5d14b8..29bd6de 100644
--- a/src/test/java/com/wf/captcha/CaptchaTest.java
+++ b/src/test/java/com/wf/captcha/CaptchaTest.java
@@ -14,11 +14,11 @@ public class CaptchaTest {
@Test
public void test() throws Exception {
- for (int i = 0; i < 100; i++) {
+ for (int i = 0; i < 5; i++) {
SpecCaptcha specCaptcha = new SpecCaptcha();
- specCaptcha.setCharType(Captcha.TYPE_ONLY_NUMBER);
+ //specCaptcha.setCharType(Captcha.TYPE_ONLY_NUMBER);
System.out.println(specCaptcha.text());
- specCaptcha.out(new FileOutputStream(new File("D:/a/aa" + i + ".png")));
+ //specCaptcha.out(new FileOutputStream(new File("C:/aa" + i + ".png")));
}
}
@@ -26,6 +26,22 @@ public class CaptchaTest {
public void testGIf() throws Exception {
GifCaptcha gifCaptcha = new GifCaptcha(130, 48, 5);
System.out.println(gifCaptcha.text());
- //gifCaptcha.out(new FileOutputStream(new File("D:/a/aa.gif")));
+ //gifCaptcha.out(new FileOutputStream(new File("C:/aa.gif")));
+ }
+
+ @Test
+ public void testHan() throws Exception {
+ ChineseCaptcha chineseCaptcha = new ChineseCaptcha();
+ //chineseCaptcha.setFont(new Font("微软雅黑", Font.PLAIN, 25));
+ System.out.println(chineseCaptcha.text());
+ //chineseCaptcha.out(new FileOutputStream(new File("C:/Java/aa.png")));
+ }
+
+ @Test
+ public void testGifHan() throws Exception {
+ 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")));
}
}