weaver-develop/src/test/MainTest.java

package test;

import java.time.LocalDate;
import java.time.Period;
import java.time.format.DateTimeFormatter;

/**
 * @Author weaver_cl
 * @Description:
 * @Date 2022/10/9
 * @Version V1.0
 **/
public class MainTest {

    public static void main(String[] args) {
        String birthDateString = "1997-11-09";
        // 定义日期格式
        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd");
        // 解析生日字符串为 LocalDate 对象
        LocalDate birthDate = LocalDate.parse(birthDateString, formatter);
        // 获取当前日期
        LocalDate currentDate = LocalDate.now();
        // 计算年龄
        System.out.println(Period.between(birthDate, currentDate).getYears());
    }
}