为@async异步任务线程池配置拒绝策略

2.x/chapter7-8/src/main/java/com/didispace/chapter78/Chapter78Application.java

@@ -1,19 +1,13 @@
 package com.didispace.chapter78;
 
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.scheduling.annotation.EnableAsync;
 import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RestController;
 
 import java.util.concurrent.Executor;
-import java.util.concurrent.RejectedExecutionHandler;
-import java.util.concurrent.ThreadPoolExecutor;
 
 @EnableAsync
 @SpringBootApplication