fix: 回退 IDGenerator 版本，去掉补位 0 会导致生成号码冲突

commons-spring/src/main/java/cn/quantgroup/tech/util/IDGenerator.java

@@ -39,6 +39,13 @@ public class IDGenerator {
 
     private static final String REDIS_WORK_ID_KEY = "GLOBAL:WORK:ID:";
     private static final String ID_FORMAT = "yyyyMMddHHmmss";
+
+    private static Lock lock = new ReentrantLock();
+
+    /**
+     * data center，默认为 1
+     */
+    private static int DATA_CENTER_ID = 1;
     /**
      * 最高支持同时1W台机器
      */
@@ -47,11 +54,7 @@ public class IDGenerator {
      * 最高每秒发号 100w
      */
     private static final int MAX_COUNT = 999999;
-    private static Lock lock = new ReentrantLock();
-    /**
-     * data center，默认为 1
-     */
-    private static int DATA_CENTER_ID = 1;
+
     private static AtomicInteger COUNTER = new AtomicInteger(0);
     private static long MAX_TIME_SECOND;
 
@@ -67,6 +70,12 @@ public class IDGenerator {
      * 最长回退时间，120 秒
      */
     private static int MAX_BACK_SECOND = 120;
+
+    static {
+        Date now = new Date();
+        MAX_TIME_SECOND = now.getTime() / 1000;
+    }
+
     private static LoadingCache cache = CacheBuilder.newBuilder()
             .expireAfterWrite(MAX_BACK_SECOND, TimeUnit.SECONDS)
             .build(new CacheLoader<Long, AtomicInteger>() {
@@ -76,14 +85,23 @@ public class IDGenerator {
                 }
             });
 
-    static {
-        Date now = new Date();
-        MAX_TIME_SECOND = now.getTime() / 1000;
-    }
 
     @Autowired
     private StringRedisTemplate redis;
 
+    @Value("${data.center.id}")
+    public void setDataCenterId(Integer dataCenterId) {
+        DATA_CENTER_ID = dataCenterId;
+    }
+
+    @PostConstruct
+    public void init() {
+        int workerId = (int) (redis.opsForValue().increment(REDIS_WORK_ID_KEY + DATA_CENTER_ID, 1) % MAX_WORK_ID);
+        WORKER_ID_STR = String.format("%04d", workerId);
+        DATA_CENTER_STR = String.format("%03d", DATA_CENTER_ID);
+    }
+
+
     /**
      * 1. 需要获取 dataCenterId 和 workeId
      */
@@ -128,19 +146,7 @@ public class IDGenerator {
         }
 
         String currentTimeStr = new SimpleDateFormat(ID_FORMAT, Locale.SIMPLIFIED_CHINESE).format(now);
-        return prefix + currentTimeStr + DATA_CENTER_STR + WORKER_ID_STR + counter;
-    }
-
-    @Value("${data.center.id}")
-    public void setDataCenterId(Integer dataCenterId) {
-        DATA_CENTER_ID = dataCenterId;
-    }
-
-    @PostConstruct
-    public void init() {
-        int workerId = (int) (redis.opsForValue().increment(REDIS_WORK_ID_KEY + DATA_CENTER_ID, 1) % MAX_WORK_ID);
-        WORKER_ID_STR = String.valueOf(workerId);
-        DATA_CENTER_STR = String.valueOf(DATA_CENTER_ID);
+        return prefix + currentTimeStr + DATA_CENTER_STR + WORKER_ID_STR + String.format("%06d", counter);
     }
 
 }