Java，BigDecimal转换为int类型，数据精度丢失

public class Test1 {

    public static void main(String[] args) {

//        Double aaa = 987842.6;
        Double aaa = -2.3785548e+17;

        String dist = String.valueOf(aaa);


        BigDecimal KmBigDecimal = null;
        try {
            mileKmBigDecimal = new BigDecimal(dist);
            System.out.println("mileKmBigDecimal:"+mileKmBigDecimal);
        } catch (Exception e) {


        }


        BigDecimal multiplier = new BigDecimal("100");
        BigDecimal resultBigDecimal = mileKmBigDecimal.multiply(multiplier);
        System.out.println("resultBigDecimal:"+resultBigDecimal);
        double v = resultBigDecimal.doubleValue();
        System.out.println(v);
        int distCm = resultBigDecimal.intValue();

        System.out.println(distCm);

    }

}

结果

mileKmBigDecimal:-2.3785548E+17
resultBigDecima