校验LocalDate格式

public static void main(String[] args){
    public static final String YYYY_MM_DD_HH_MM_SS = "^\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}$";
    public static final String YYYY_MM_DD = "^\d{4}-\d{2}-\d{2}$";// 校验LocalDate格式
    boolean pattern = Pattern.matches(YYYY_MM_DD, "2021-11-11");
}