SSM模板（已搭建好，解压即用）

package com.xxx.tools; import java.math.BigDecimal; /** * Created by user on 2015/7/6. */ public class BigDecimalUtil { /** * BigDecimalOprations + - * / */ enum BigDecimalOprations{ add,subtract,multiply,divide } /** * OperationASMD + - * / add substract multiiply divide * @param numOne [String Integer Long Double Bigdecimal] * @param numTwo [String Integer Long Double Bigdecimal] * @param bigDecimalOpration * @param scale * @param roundingMode * @return * @throws Exception */ public static BigDecimal OperationASMD(Object numOne,Object numTwo,BigDecimalOprations bigDecimalOpration,int scale,int roundingMode) throws Exception{ BigDecimal num1 = new BigDecimal(String.valueOf(numOne)).setScale(scale,roundingMode); BigDecimal num2 = new BigDecimal(String.valueOf(numTwo)).setScale(scale,roundingMode); switch (bigDecimalOpration){ case add: return num1.add(num2).setScale(scale,roundingMode); case subtract: return num1.subtract(num2).setScale(scale,roundingMode); case multiply: return num1.multiply(num2).setScale(scale,roundingMode); case divide: return num1.divide(num2, scale, roundingMode); } return null; } /* Code Demo Exp */ public static void main(String[] args){ try { System.out.println(BigDecimalUtil.OperationASMD(36.23,23.369,BigDecimalOprations.add,2,BigDecimal.ROUND_DOWN)); System.out.println(BigDecimalUtil.OperationASMD("36.23","23.369",BigDecimalOprations.add,2,BigDecimal.ROUND_DOWN)); System.out.println(BigDecimalUtil.OperationASMD(36,23,BigDecimalOprations.add,2,BigDecimal.ROUND_DOWN)); System.out.println(BigDecimalUtil.OperationASMD(36l,69l,BigDecimalOprations.add,2,BigDecimal.ROUND_DOWN)); System.out.println(BigDecimalUtil.OperationASMD(new BigDecimal(0.2635),new BigDecimal(2.3568),BigDecimalOprations.add,2,BigDecimal.ROUND_DOWN)); System.out.println(BigDecimalUtil.OperationASMD(36.23,23.369,BigDecimalOprations.subtract,2,BigDecimal.ROUND_DOWN)); System.out.println(BigDecimalUtil.OperationASMD("36.23","23.369",BigDecimalOprations.subtract,2,BigDecimal.ROUND_DOWN)); System.out.println(BigDecimalUtil.OperationASMD(36,23,BigDecimalOprations.subtract,2,BigDecimal.ROUND_DOWN)); System.out.println(BigDecimalUtil.OperationASMD(36l,69l,BigDecimalOprations.subtract,2,BigDecimal.ROUND_DOWN)); System.out.println(BigDecimalUtil.OperationASMD(new BigDecimal(0.2635),new BigDecimal(2.3568),BigDecimalOprations.subtract,2,BigDecimal.ROUND_DOWN)); System.out.println(BigDecimalUtil.OperationASMD(36.23,23.369,BigDecimalOprations.multiply,2,BigDecimal.ROUND_DOWN)); System.out.println(BigDecimalUtil.OperationASMD("36.23","23.369",BigDecimalOprations.multiply,2,BigDecimal.ROUND_DOWN)); System.out.println(BigDecimalUtil.OperationASMD(36,23,BigDecimalOprations.multiply,2,BigDecimal.ROUND_DOWN)); System.out.println(BigDecimalUtil.OperationASMD(36l,69l,BigDecimalOprations.multiply,2,BigDecimal.ROUND_DOWN)); System.out.println(BigDecimalUtil.OperationASMD(new BigDecimal(0.2635),new BigDecimal(2.3568),BigDecimalOprations.multiply,2,BigDecimal.ROUND_DOWN)); System.out.println(BigDecimalUtil.OperationASMD(36.23,23.369,BigDecimalOprations.divide,2,BigDecimal.ROUND_DOWN)); System.out.println(BigDecimalUtil.OperationASMD("36.23","23.369",BigDecimalOprations.divide,2,BigDecimal.ROUND_DOWN)); System.out.println(BigDecimalUtil.OperationASMD(36,23,BigDecimalOprations.divide,2,BigDecimal.ROUND_DOWN)); System.out.println(BigDecimalUtil.OperationASMD(36l,69l,BigDecimalOprations.divide,2,BigDecimal.ROUND_DOWN)); System.out.println(BigDecimalUtil.OperationASMD(new BigDecimal(0.235),new BigDecimal(0.5689),BigDecimalOprations.divide,2,BigDecimal.ROUND_DOWN)); } catch (Exception e) { e.printStackTrace(); } } }