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NumberUtil.parseNumber增加支持科学计数法（pr#4211@Github）

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Looly
2026-01-12 16:08:17 +08:00
parent af48fa825c
commit 12547f4d4c
3 changed files with 10 additions and 10 deletions
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3
CHANGELOG.md
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@@ -1,8 +1,9 @@
# 🚀Changelog
-------------------------------------------------------------------------------------------------------------
# 5.8.44
# 5.8.44(2026-01-12)
### 🐣新特性
* 【core 】 `NumberUtil.parseNumber`增加支持科学计数法（pr#4211@Github）
### 🐞Bug修复
* 【json 】 修复`JSONUtil.wrap`忽略错误问题（issue#4210@Github）

2
hutool-core/src/main/java/cn/hutool/core/util/NumberUtil.java
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@@ -2785,7 +2785,7 @@ public class NumberUtil {
// issue#IDJ1NS@Gitee 处理科学计数法E+格式
// NumberFormat对E+格式支持不佳,使用BigDecimal直接解析
if (numberStr.contains("E") || numberStr.contains("e")) {
if (StrUtil.containsIgnoreCase(numberStr, "e")) {
try {
return new BigDecimal(numberStr);
} catch (NumberFormatException e) {

15
hutool-core/src/test/java/cn/hutool/core/util/NumberUtilTest.java
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@@ -389,14 +389,13 @@ public class NumberUtilTest {
}
@Test
public void parseNumberTest5() {
String numberstr1 = "8.37095942E+9";
Number result1 = NumberUtil.parseNumber(numberstr1);
// 转换成BigDecimal再输出完整数字
System.out.println(((BigDecimal) result1).toPlainString());
String numberstr2 = "8.37095942e+9";
Number result2 = NumberUtil.parseNumber(numberstr2);
System.out.println(((BigDecimal) result2).toPlainString());
void issueIDJ1NSTest(){
final String numberstr1 = "8.37095942E+9";
final BigDecimal result1 = (BigDecimal) NumberUtil.parseNumber(numberstr1);
final String numberstr2 = "8.37095942e+9";
final BigDecimal result2 = (BigDecimal) NumberUtil.parseNumber(numberstr2);
assertEquals(new BigDecimal("8370959420").toPlainString(), result1.toPlainString());
assertEquals(new BigDecimal("8370959420").toPlainString(), result2.toPlainString());
}
@Test