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郝先瑞 2022-05-17 21:46:06 +08:00
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commit b164e8e9ab
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.github/ISSUE_TEMPLATE/feature.md vendored
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---
name: 建议增加新功能
about: 请按照该模板填写，以便我们能真正了解你的需求，否则该 issue 将不予受理！
---
## 功能描述
*请输入内容……*
## 原型图
*涉及到 UI 改动的功能，请一定提供原型图。原型图能表明功能即可，不要求规范和美观*
## 可参考的案例
*是否已有可参考的案例，有的话请给出链接*

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.github/ISSUE_TEMPLATE/question.md vendored
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---
name: 使用时遇到了问题
about: 请按照该模板填写，以便我们能真正了解你的问题，否则该 issue 将不予受理！
---
## 问题描述
*请输入遇到的问题...*
## 项目版本
*请输入内容……*
## 是否查阅了文档 ？
（文档链接 [www.cnblogs.com/haoxianrui/](https://www.cnblogs.com/haoxianrui/) ）
*是/否*
## 最小成本的复现步骤
（请告诉我们，如何**最快的**复现该问题？）
- 步骤一
- 步骤二
- 步骤三

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youlai-common/common-elasticsearch/README.md
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youlai-gateway/src/main/java/com/youlai/gateway/util/KaptchaTextCreator.java
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package com.youlai.gateway.util;
import com.google.code.kaptcha.text.impl.DefaultTextCreator;
import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;
/**
* 验证码文本生成器
*
* @author <a href="mailto:xianrui0365@163.com">haoxr</a>
* @date 2021/10/4
*/
public class KaptchaTextCreator extends DefaultTextCreator {
private static final String[] CNUMBERS = "0,1,2,3,4,5,6,7,8,9,10".split(",");
// https://gitee.com/youlaitech/youlai-mall/issues/I4E0WL?from=project-issue
// private SecureRandom random = SecureRandom.getInstanceStrong(); // /dev/random 作为熵池，熵越大随机性越好，熵池数量不足就会阻塞线程，适用随机数比较高的请求。
private SecureRandom random = new SecureRandom(); // /dev/urandom 作为熵池，非阻塞的随机数生成器，重复使用熵池中的数据以产生伪随机数据，不会产生阻塞，适用生成较低强度的伪随机数。
public KaptchaTextCreator() throws NoSuchAlgorithmException {
}
@Override
public String getText() {
Integer result = 0;
int x = this.random.nextInt(10);
int y = this.random.nextInt(10);
StringBuilder suChinese = new StringBuilder();
int randomoperands = (int) Math.round(random.nextDouble() * 2);
if (randomoperands == 0) {
result = x * y;
suChinese.append(CNUMBERS[x]);
suChinese.append("*");
suChinese.append(CNUMBERS[y]);
} else if (randomoperands == 1) {
if (!(x == 0) && y % x == 0) {
result = y / x;
suChinese.append(CNUMBERS[y]);
suChinese.append("/");
suChinese.append(CNUMBERS[x]);
} else {
result = x + y;
suChinese.append(CNUMBERS[x]);
suChinese.append("+");
suChinese.append(CNUMBERS[y]);
}
} else if (randomoperands == 2) {
if (x >= y) {
result = x - y;
suChinese.append(CNUMBERS[x]);
suChinese.append("-");
suChinese.append(CNUMBERS[y]);
} else {
result = y - x;
suChinese.append(CNUMBERS[y]);
suChinese.append("-");
suChinese.append(CNUMBERS[x]);
}
} else {
result = x + y;
suChinese.append(CNUMBERS[x]);
suChinese.append("+");
suChinese.append(CNUMBERS[y]);
}
suChinese.append("=?@" + result);
return suChinese.toString();
}
}