This commit is contained in:
2026-10-20 23:49:55 +08:00
parent 35a1b835fe
commit af5cf1e3bd
37 changed files with 714 additions and 184 deletions
@@ -0,0 +1,44 @@
package com.baiyue.common.core.number;
import com.baiyue.common.core.api.ResultCode;
import com.baiyue.common.core.exception.BizException;
import java.time.Clock;
import java.time.LocalDate;
import java.time.ZoneId;
import java.time.format.DateTimeFormatter;
import java.util.Locale;
import java.util.function.ToLongFunction;
/** 统一业务单号格式;序列仍由各服务自己的 Repository/Mapper 分配。 */
public final class DailyDocumentNumber {
public static final ZoneId BUSINESS_ZONE = ZoneId.of("Asia/Shanghai");
/** 工具类不允许实例化。 */
private DailyDocumentNumber() {}
/** 先固定北京时间业务日,再使用前缀和日期分配跨客户、跨仓库日流水。 */
public static String next(String prefix, Clock clock, ToLongFunction<String> sequences) {
requirePrefix(prefix);
LocalDate date = LocalDate.now(clock.withZone(BUSINESS_ZONE));
String dateText = date.format(DateTimeFormatter.BASIC_ISO_DATE);
long value = sequences.applyAsLong(prefix + ":" + dateText);
return format(prefix, date, value);
}
/** 严格四位流水,不允许溢出后产生五位号码或退回随机编号。 */
public static String format(String prefix, LocalDate date, long value) {
requirePrefix(prefix);
if (value < 1 || value > 9999) {
throw new BizException(ResultCode.CONFLICT, "当日" + prefix + "单据四位流水号已用尽或分配失败");
}
return prefix + date.format(DateTimeFormatter.BASIC_ISO_DATE)
+ String.format(Locale.ROOT, "%04d", value);
}
/** 业务类型只能使用两至四位大写字母。 */
private static void requirePrefix(String prefix) {
if (prefix == null || !prefix.matches("[A-Z]{2,4}")) {
throw new IllegalArgumentException("业务单据前缀必须为2至4位大写字母");
}
}
}