From 39539e5ef62e2ee7da103da3f62f85766ce4724e Mon Sep 17 00:00:00 2001
From: guo <1716967236@qq.com>
Date: Thu, 11 Jul 2024 17:05:11 +0800
Subject: [PATCH] =?UTF-8?q?=E7=94=9F=E6=88=90=E7=BC=96=E7=A0=81=E7=9A=84?=
 =?UTF-8?q?=E5=B7=A5=E5=85=B7?=
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---
 .../utils/GenerateNumTool.java                | 39 +++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100644 src/main/java/com/guo/learningprogresstracker/utils/GenerateNumTool.java

diff --git a/src/main/java/com/guo/learningprogresstracker/utils/GenerateNumTool.java b/src/main/java/com/guo/learningprogresstracker/utils/GenerateNumTool.java
new file mode 100644
index 0000000..e34d658
--- /dev/null
+++ b/src/main/java/com/guo/learningprogresstracker/utils/GenerateNumTool.java
@@ -0,0 +1,39 @@
+package com.guo.learningprogresstracker.utils;
+
+import lombok.RequiredArgsConstructor;
+
+import java.text.SimpleDateFormat;
+import java.util.Date;
+
+/**
+ * 用于生成编码的工具
+ *
+ * @author guo
+ */
+@RequiredArgsConstructor
+public class GenerateNumTool {
+    public static int getNextSequence() {
+        // 获取当前时间的毫秒级时间戳
+        long timestamp = System.currentTimeMillis();
+
+        // 使用时间戳的最后6位作为序列号
+        return (int) (timestamp % 1_000_000);
+    }
+
+    /**
+     * 生成以prefix开头separator分割的编码
+     * 例如：PREFIX—20240711-423468
+     * @param prefix
+     * @param separator
+     * @return
+     */
+    public String generateNum(String prefix, String separator) {
+        String currentDate = new SimpleDateFormat("yyyyMMdd").format(new Date());
+
+        // 唯一的后缀
+        int sequence = getNextSequence();
+
+        // 返回完整的 taskNum
+        return prefix + separator + currentDate + separator + sequence;
+    }
+}