diff --git a/eladmin-system/src/main/java/me/zhengjie/modules/security/config/bean/LoginProperties.java b/eladmin-system/src/main/java/me/zhengjie/modules/security/config/bean/LoginProperties.java index ca57213a..b13f173e 100644 --- a/eladmin-system/src/main/java/me/zhengjie/modules/security/config/bean/LoginProperties.java +++ b/eladmin-system/src/main/java/me/zhengjie/modules/security/config/bean/LoginProperties.java @@ -80,7 +80,7 @@ public class LoginProperties { switch (loginCode.getCodeType()) { case arithmetic: // 算术类型 https://gitee.com/whvse/EasyCaptcha - captcha = new ArithmeticCaptcha(loginCode.getWidth(), loginCode.getHeight()); + captcha = new FixedArithmeticCaptcha(loginCode.getWidth(), loginCode.getHeight()); // 几位数运算,默认是两位 captcha.setLen(loginCode.getLength()); break; @@ -109,4 +109,27 @@ public class LoginProperties { } return captcha; } + + static class FixedArithmeticCaptcha extends ArithmeticCaptcha { + public FixedArithmeticCaptcha(int width, int height) { + super(width, height); + } + + @Override + protected char[] alphas() { + // 生成随机数字和运算符 + int n1 = num(1, 10), n2 = num(1, 10); + int opt = num(3); + + // 计算结果 + int res = new int[]{n1 + n2, n1 - n2, n1 * n2}[opt]; + // 转换为字符运算符 + char optChar = "+-x".charAt(opt); + + this.setArithmeticString(String.format("%s%c%s=?", n1, optChar, n2)); + this.chars = String.valueOf(res); + + return chars.toCharArray(); + } + } }