BigDecimalUtil 工具类

package com.yintn.cbms.basicinfo.api.utils;

import lombok.experimental.UtilityClass;

import java.math.BigDecimal;
import java.math.BigInteger;
import java.math.RoundingMode;
import java.util.Optional;

@UtilityClass
public class BigDecimalUtil {

    public BigDecimal add(Object i, Object j) {
        return objectToBigDecimal(i).add(objectToBigDecimal(j));
    }

    public BigDecimal subtract(Object i, Object j) {
        return objectToBigDecimal(i).subtract(objectToBigDecimal(j));
    }

    public BigDecimal multiply(Object i, Object j) {
        return objectToBigDecimal(i).multiply(objectToBigDecimal(j));
    }

    public BigDecimal divide(Object i, Object j) {
        return objectToBigDecimal(i).divide(objectToBigDecimal(j),2, RoundingMode.HALF_UP);
    }

    public BigDecimal objectToBigDecimal(Object value) {
        BigDecimal ret = null;
        if (value != null) {
            if (value instanceof BigDecimal) {
                ret = (BigDecimal) value;
            } else if (value instanceof String) {
                ret = new BigDecimal((String) value);
            } else if (value instanceof BigInteger) {
                ret = new BigDecimal((BigInteger) value);
            } else if (value instanceof Number) {
                ret = BigDecimal.valueOf(((Number) value).doubleValue());
            } else {
                throw new ClassCastException("Not possible to coerce [" + value + "] from class " + value.getClass() + " into a BigDecimal.");
            }
        }
        if (ret != null) {
            ret = ret.setScale(2);
        }
        return ret;
    }

    public BigDecimal objectToBigDecimal1(Object object){
        Object o = Optional.ofNullable(object).orElse(BigDecimal.ZERO);
        return new BigDecimal(String.valueOf(o));
    }
}