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修复算术类型验证码在 Java 15+ 的兼容问题 (#607) 

(cherry picked from commit cdbc3a8faaf5958489758608329aa70095b37bb3)
pull/608/head^2
Tsln 2021-03-04 21:53:37 +08:00 committed by GitHub
parent 01d1aa9721
commit a49bd6d127
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1 changed files with 24 additions and 1 deletions
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25
eladmin-system/src/main/java/me/zhengjie/modules/security/config/bean/LoginProperties.java
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@ -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();
}
}
}