安全字符串到 BigDecimal 的转换 [英] Safe String to BigDecimal conversion

问题描述

我正在尝试从字符串中读取一些 BigDecimal 值.假设我有这个字符串:1,000,000,000.999999999999999"，我想从中得到一个 BigDecimal.有什么办法呢?

I'm trying to read some BigDecimal values from the string. Let's say I have this String: "1,000,000,000.999999999999999" and I want to get a BigDecimal out of it. What is the way to do it?

首先，我不喜欢使用字符串替换(替换逗号等)的解决方案.我认为应该有一些简洁的格式化程序来为我完成这项工作.

First of all, I don't like the solutions using string replaces (replacing commas etc.). I think there should be some neat formatter to do that job for me.

我发现了一个 DecimalFormatter 类，但是当它通过 double 运行时 - 大量的精度丢失了.

I've found a DecimalFormatter class, however as it operates through double - huge amounts of precision are lost.

那么，我该怎么做?

推荐答案

查看 setParseBigDecimal 十进制格式.使用此设置器，parse 将为您返回一个 BigDecimal.

Check out setParseBigDecimal in DecimalFormat. With this setter, parse will return a BigDecimal for you.

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