Date和Instant转换

from(Instant instant)和toInstant()方法

// Obtains an instance of Date from an Instant object.
public static Date from(Instant instant) {
    try {
        return new Date(instant.toEpochMilli());
    } catch (ArithmeticException ex) {
        throw new IllegalArgumentException(ex);
    }
}

// Converts this Date object to an Instant.
public Instant toInstant() {
    return Instant.ofEpochMilli(getTime());
}