BigDecimal除法报错Method threw ‘java.lang.ArithmeticException‘ exception.

今天使用BigDecimal数据类型做除法的时候，遇到以下报错：
Method threw ‘java.lang.ArithmeticException’ exception.

Non-terminating decimal expansion; no exact representable decimal result.

经过排查发现是当不整除，出现无限循环小数时，就会抛异常的。
比如10/3 =3.33333… 就会出现异常

解决办法：

1.设置精度

具体代码如下：

new BigDecimal(10).divide(new BigDecimal(3),2,BigDecimal.ROUND_HALF_UP));

源码如下：

 1     public BigDecimal divide(BigDecimal divisor, int scale, int roundingMode) {
 2         if (roundingMode < ROUND_UP || roundingMode > ROUND_UNNECESSARY)
 3             throw new IllegalArgumentException("Invalid rounding mode");
 4         if (this.intCompact != INFLATED) {
 5             if ((divisor.intCompact != INFLATED)) {
 6                 return divide(this.intCompact, this.scale, divisor.intCompact, divisor.scale, scale, roundingMode);
 7             } else {
 8                 return divide(this.intCompact, this.scale, divisor.intVal, divisor.scale, scale, roundingMode);
 9             }
10         } else {
11             if ((divisor.intCompact != INFLATED)) {
12                 return divide(this.intVal, this.scale, divisor.intCompact, divisor.scale, scale, roundingMode);
13             } else {
14                 return divide(this.intVal, this.scale, divisor.intVal, divisor.scale, scale, roundingMode);
15             }
16         }
17     }

————————————————
版权声明：本文为CSDN博主「严孝祥 yanxiaoxiang」的原创文章，遵循CC 4.0 BY-SA版权协议，转载请附上原文出处链接及本声明。
原文链接：https://blog.csdn.net/weixin_42280076/article/details/108082470