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Hutool 验证码工具

There is a newer version: 5.8.34

package cn.hutool.captcha.generator;

import cn.hutool.core.util.RandomUtil;
import cn.hutool.core.util.StrUtil;

/**
 * 随机字符验证码生成器

 * 可以通过传入的基础集合和长度随机生成验证码字符
 *
 * @author looly
 * @since 4.1.2
 */
public class RandomGenerator extends AbstractGenerator {
	private static final long serialVersionUID = -7802758587765561876L;

	/**
	 * 构造，使用字母+数字做为基础
	 *
	 * @param count 生成验证码长度
	 */
	public RandomGenerator(int count) {
		super(count);
	}

	/**
	 * 构造
	 *
	 * @param baseStr 基础字符集合，用于随机获取字符串的字符集合
	 * @param length 生成验证码长度
	 */
	public RandomGenerator(String baseStr, int length) {
		super(baseStr, length);
	}

	@Override
	public String generate() {
		return RandomUtil.randomString(this.baseStr, this.length);
	}

	@Override
	public boolean verify(String code, String userInputCode) {
		if (StrUtil.isNotBlank(userInputCode)) {
			return StrUtil.equalsIgnoreCase(code, userInputCode);
		}
		return false;
	}
}