1.編寫配置類
@Configuration
@ComponentScan(value="cn.ployer.demo")
@EnableAsync//開啓異步任務支持
public class TaskExecutorConfig implements AsyncConfigurer{
@Override
public Executor getAsyncExecutor() {
// TODO Auto-generated method stub
ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
executor.setCorePoolSize(5);
executor.setMaxPoolSize(10);
executor.setQueueCapacity(25);
executor.initialize();
return executor;
}
@Override
public AsyncUncaughtExceptionHandler getAsyncUncaughtExceptionHandler() {
// TODO Auto-generated method stub
return AsyncConfigurer.super.getAsyncUncaughtExceptionHandler();
}
}
2.任務執行類
@Service
public class AsyncTaskService {
@Async//表明該方法是異步方法
public void executeAsyncTask(int i) {
System.out.println("執行異步任務:" + i);
}
@Async
public void executeAsyncTaskPlus(int i) {
System.out.println("執行異步任務+1:" + (i+1));
}
}
3.運行
public class Main {
public static void main(String[] args) {
// TODO Auto-generated method stub
AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext(TaskExecutorConfig.class);
AsyncTaskService asyncTaskService = context.getBean(AsyncTaskService.class);
for (int i = 0; i < 10; i++) {
asyncTaskService.executeAsyncTask(i);
asyncTaskService.executeAsyncTaskPlus(i);
}
}
}
4.結果
執行異步任務:2
執行異步任務:1
執行異步任務+1:3
執行異步任務:3
執行異步任務:0
執行異步任務+1:1
執行異步任務:5
執行異步任務+1:6
執行異步任務:6
執行異步任務+1:7
執行異步任務+1:2
執行異步任務+1:8
執行異步任務:7
執行異步任務+1:5
執行異步任務:9
執行異步任務+1:10
執行異步任務:4
執行異步任務+1:4
執行異步任務+1:9
執行異步任務:8