From 60afc1c228318d136a273cd0b389217f87583277 Mon Sep 17 00:00:00 2001
From: 无关风月 <443237572@qq.com>
Date: 星期六, 11 十月 2025 11:29:33 +0800
Subject: [PATCH] Merge remote-tracking branch 'origin/master'

---
 ruoyi-system/src/main/java/com/ruoyi/system/service/impl/OaApprovalApplicationsServiceImpl.java |   20 ++++++++++++++++++++
 1 files changed, 20 insertions(+), 0 deletions(-)

diff --git a/ruoyi-system/src/main/java/com/ruoyi/system/service/impl/OaApprovalApplicationsServiceImpl.java b/ruoyi-system/src/main/java/com/ruoyi/system/service/impl/OaApprovalApplicationsServiceImpl.java
index 3748ef0..ffb53ed 100644
--- a/ruoyi-system/src/main/java/com/ruoyi/system/service/impl/OaApprovalApplicationsServiceImpl.java
+++ b/ruoyi-system/src/main/java/com/ruoyi/system/service/impl/OaApprovalApplicationsServiceImpl.java
@@ -14,6 +14,8 @@
 import org.springframework.context.annotation.Lazy;
 import org.springframework.stereotype.Service;
 
+import java.time.LocalDate;
+import java.time.format.DateTimeFormatter;
 import java.util.List;
 import java.util.Objects;
 
@@ -51,4 +53,22 @@
             app.setDeptName(dept.getDeptName());
         }
     }
+
+    @Override
+    public String generateApplicationCode(String prefix) {
+        String dateStr = LocalDate.now().format(DateTimeFormatter.ofPattern("yyyyMMdd"));
+
+        // 查询当天已生成的申请单号数量
+        Long count = this.lambdaQuery()
+                .likeRight(OaApprovalApplications::getApplicationCode, prefix)
+                .ge(OaApprovalApplications::getCreateTime, LocalDate.now().atStartOfDay())
+                .lt(OaApprovalApplications::getCreateTime, LocalDate.now().plusDays(1).atStartOfDay())
+                .count();
+
+        // 生成4位序号,从0001开始
+        int sequence = (count != null ? count.intValue() : 0) + 1;
+        String sequenceStr = String.format("%04d", sequence);
+
+        return prefix + dateStr + sequenceStr;
+    }
 }

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