From 87ef8b4612ecc7720e1947966fa4b5437de65d83 Mon Sep 17 00:00:00 2001
From: ZhouXY108 <luquanlion@outlook.com>
Date: Tue, 18 Jul 2023 18:02:35 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E6=94=B9=E9=94=81=E7=9A=84=E5=AF=B9?=
 =?UTF-8?q?=E8=B1=A1=E3=80=82?=
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---
 src/main/java/xyz/zhouxy/plusone/commons/util/IdGenerator.java | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/main/java/xyz/zhouxy/plusone/commons/util/IdGenerator.java b/src/main/java/xyz/zhouxy/plusone/commons/util/IdGenerator.java
index e40a988..76f73f7 100644
--- a/src/main/java/xyz/zhouxy/plusone/commons/util/IdGenerator.java
+++ b/src/main/java/xyz/zhouxy/plusone/commons/util/IdGenerator.java
@@ -49,7 +49,8 @@ public class IdGenerator {
     public static SnowflakeIdGenerator getSnowflakeIdGenerator(long workerId, long datacenterId) {
         SnowflakeIdGenerator generator = snowflakePool.get(workerId, datacenterId);
         if (generator == null) {
-            synchronized (IdGenerator.class) {
+            // 其它地方需注意，对 snowflakePool 的操作，也都锁 snowflakePool 对象。
+            synchronized (snowflakePool) {
                 generator = snowflakePool.get(workerId, datacenterId);
                 if (generator == null) {
                     generator = new SnowflakeIdGenerator(workerId, datacenterId);