backend_code/src/main/java/com/template/common/utils/ClassYear.java

package com.template.common.utils;

import java.time.LocalDate;
import java.time.Year;

public class ClassYear {
    public static void main(String[] args) {
        Integer stage = 9; // 替换为你想要获取入学年份的学段
        int currentYear = Year.now().getValue();
        // 获取当前年份
        LocalDate currentDate = LocalDate.now();
        // 获取当前日期
        int admissionYear = getAdmissionYear(stage, currentYear, currentDate);
        if (admissionYear != -1) {
            System.out.println("入学年份：" + admissionYear);
        } else {
            System.out.println("无法获取入学年份");
        }
    }

    public static int getAdmissionYear(Integer stage, int currentYear, LocalDate currentDate) {
        int admissionYear = -1;
        switch (stage) {
            //初一
            case 7:
                if(currentDate.getMonthValue() < 9){
                    admissionYear = currentYear - 1;
                }else{
                    admissionYear = currentYear;
                }
                break;
            //初二
            case 8:
                if(currentDate.getMonthValue() < 9){
                    admissionYear = currentYear - 2;
                }else{
                    admissionYear = currentYear;
                }
                break;
            //初三
            case 9:
                if (currentDate.getMonthValue() < 9) {
                    admissionYear = currentYear - 3;
                } else {
                    admissionYear = currentYear;
                }
                break;
            default:
                break;
        }
        return admissionYear;
    }
}