new BigDecimal()传入空

在使用new BigDecimal()时，如果传入的参数为空，会抛出NullPointerException异常。因此，在调用new BigDecimal()之前，应该先判断参数是否为空。可以使用如下代码进行判断：null != bigDecimal ? new BigDecimal(bigDecimal.toString()) : BigDecimal.ZERO。这样可以确保在参数为空时，创建一个值为零的BigDecimal对象。引用<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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