乐观锁、可以自定义抢购数量、如果配置的抢购人数比较少、比如120:100(人数:商品) 会出现少买的情况

pom.xml

@@ -71,7 +71,7 @@
             <artifactId>springfox-swagger-ui</artifactId>  
             <version>2.7.0</version>  
         </dependency> 
-        <!-- Redisson实现分布式锁 --> 
+        <!-- Redisson 实现分布式锁 --> 
         <dependency>
 		   <groupId>org.redisson</groupId>
 		   <artifactId>redisson</artifactId>
@@ -82,7 +82,7 @@
 		    <artifactId>commons-lang3</artifactId>
 		    <version>3.7</version>
 		</dependency>
-		<!--kafka支持-->
+		<!--kafka 支持-->
 		<dependency>
 		    <groupId>org.springframework.kafka</groupId>
 		    <artifactId>spring-kafka</artifactId>
@@ -130,8 +130,7 @@
         <plugin>
               <groupId>org.apache.maven.plugins</groupId>
               <artifactId>maven-javadoc-plugin</artifactId>
-               <version>3.0.0</version>
-        </plugin>
+               </plugin>
 	  </plugins>
   </build>
 </project>

src/main/java/com/itstyle/seckill/common/aop/LimitAspect.java

@@ -17,7 +17,7 @@ import com.google.common.util.concurrent.RateLimiter;
 @Scope
 @Aspect
 public class LimitAspect {
-	////每秒只发出5个令牌，此处是单进程服务的限流
+	////每秒只发出5个令牌，此处是单进程服务的限流,内部采用令牌捅算法实现
 	private static   RateLimiter rateLimiter = RateLimiter.create(5.0);
 	
 	//Service层切点  限流

src/main/java/com/itstyle/seckill/web/SeckillController.java

@@ -179,7 +179,9 @@ public class SeckillController {
 			Runnable task = new Runnable() {
 				@Override
 				public void run() {
-					Result result = seckillService.startSeckilDBOCC(killId, userId,4);
+					//这里使用的乐观锁、可以自定义抢购数量、如果配置的抢购人数比较少、比如120:100(人数:商品) 会出现少买的情况
+					//用户同时进入会出现更新失败的情况
+					Result result = seckillService.startSeckilDBOCC(killId, userId,1);
 					LOGGER.info("用户:{}{}",userId,result.get("msg"));
 				}
 			};