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Merge pull request #4221 from dingqianwen/v5-master

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提取并预编译日期时间正则提高性能
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Golden Looly
2026-02-01 19:26:04 +08:00
committed by GitHub
parent 29ac254f06 47479e9262
commit 190bdf2585
1 changed files with 13 additions and 2 deletions
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15
hutool-core/src/main/java/cn/hutool/core/date/DateUtil.java
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@@ -25,6 +25,7 @@ import java.util.*;
import java.util.concurrent.TimeUnit; import java.util.concurrent.TimeUnit;
import java.util.function.Consumer; import java.util.function.Consumer;
import java.util.function.Function; import java.util.function.Function;
import java.util.regex.Pattern;
import java.util.stream.Collectors; import java.util.stream.Collectors;
/** /**
@@ -44,6 +45,16 @@ public class DateUtil extends CalendarUtil {
"jan", "feb", "mar", "apr", "may", "jun", "jul", "aug", "sep", "oct", "nov", "dec", // 月份 "jan", "feb", "mar", "apr", "may", "jun", "jul", "aug", "sep", "oct", "nov", "dec", // 月份
"gmt", "ut", "utc", "est", "edt", "cst", "cdt", "mst", "mdt", "pst", "pdt"// 时间标准 "gmt", "ut", "utc", "est", "edt", "cst", "cdt", "mst", "mdt", "pst", "pdt"// 时间标准
}; };
/**
* 匹配日期分隔符（正斜杠、点、年、月），用于统一替换为横杠
*/
private static final Pattern DATE_SEPARATOR_PATTERN = Pattern.compile("[/.年月]");
/**
* 匹配时间单位（时、分、秒），用于统一替换为冒号 匹配时间单位（时、分、秒），用于统一替换为冒号
*/
private static final Pattern TIME_UNIT_PATTERN = Pattern.compile("[时分秒]");
/** /**
* 当前时间，转换为{@link DateTime}对象 * 当前时间，转换为{@link DateTime}对象
@@ -2408,14 +2419,14 @@ public class DateUtil extends CalendarUtil {
final StringBuilder builder = StrUtil.builder(); final StringBuilder builder = StrUtil.builder();
// 日期部分（"\"、"/"、"."、"年"、"月"都替换为"-"） // 日期部分（"\"、"/"、"."、"年"、"月"都替换为"-"）
String datePart = dateAndTime.get(0).replaceAll("[/.年月]", "-"); String datePart = DATE_SEPARATOR_PATTERN.matcher(dateAndTime.get(0)).replaceAll("-");
datePart = StrUtil.removeSuffix(datePart, "日"); datePart = StrUtil.removeSuffix(datePart, "日");
builder.append(datePart); builder.append(datePart);
// 时间部分 // 时间部分
if (size == 2) { if (size == 2) {
builder.append(' '); builder.append(' ');
String timePart = dateAndTime.get(1).replaceAll("[时分秒]", ":"); String timePart = TIME_UNIT_PATTERN.matcher(dateAndTime.get(1)).replaceAll(":");
timePart = StrUtil.removeSuffix(timePart, ":"); timePart = StrUtil.removeSuffix(timePart, ":");
//将ISO8601中的逗号替换为. //将ISO8601中的逗号替换为.
timePart = timePart.replace(',', '.'); timePart = timePart.replace(',', '.');