[类型转换] Object 转换为 BigDecimal

import java.math.BigDecimal;
import java.math.BigInteger;

public class MathUtil {

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

}

原文地址：https://www.cnblogs.com/smdq/p/9466895.html