# 添加在 ID 生成器中通过 value 注解注入 dataCenterId .

src/main/java/cn/quantgroup/xyqb/Utils/IDGenerator.java

@@ -2,6 +2,7 @@ package cn.quantgroup.xyqb.Utils;
 
 import com.google.common.base.Stopwatch;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
 import org.springframework.data.redis.core.StringRedisTemplate;
 import org.springframework.stereotype.Component;
 
@@ -14,7 +15,11 @@ import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.TimeUnit;
 
 /**
- * Created by liuzhiguo1 on 2017/5/18.
+ * 注意事项：
+ * 1. 使用前在配置文件内配置 DATA_CENTER_ID
+ *
+ *
+ * Created by zhiguo.liu on 2017/5/18.
  */
 @Component
 public class IDGenerator {
@@ -41,10 +46,10 @@ public class IDGenerator {
     // data center 字符串
     private static String DATA_CENTER_STR;
 
-
     @Autowired
     private StringRedisTemplate redis;
 
+    @Value("${data.center.id}")
     public static void setDataCenterId(int dataCenterId) {
         DATA_CENTER_ID = dataCenterId;
     }
@@ -83,26 +88,4 @@ public class IDGenerator {
         return prefix + CURRENT_TIME_STR + DATA_CENTER_STR + WORKER_ID_STR + String.format("%06d", ++COUNTER);
     }
 
-    public static void main(String[] args) throws InterruptedException {
-        WORKER_ID = 1;
-        WORKER_ID_STR = String.format("%04d", WORKER_ID);
-        DATA_CENTER_STR = String.format("%03d", DATA_CENTER_ID);
-
-        Stopwatch watch = Stopwatch.createStarted();
-
-        CountDownLatch countDownLatch = new CountDownLatch(100);
-        ConcurrentHashMap hashMap = new ConcurrentHashMap();
-        for (int i = 0; i < 100; i++) {
-            new Thread(() -> {
-                for (int j = 0; j < 1000; j++) {
-                    hashMap.put(getId("BT"), "xx");
-                }
-                countDownLatch.countDown();
-            }).start();
-        }
-        countDownLatch.await();
-        watch.stop();
-        System.out.println(hashMap.size() + ", " + watch.elapsed(TimeUnit.MILLISECONDS) + "ms");
-
-    }
 }