java 我应该把@EnableAsync 注释放在哪里
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Where should I put @EnableAsync annotation
提问by Sanka
I need to send a email in async way while saving the data into DB.
我需要以异步方式发送电子邮件，同时将数据保存到数据库中。
My approach was like this.
我的方法是这样的。
//I have tried with service layer annotating.But not worked.
@EnableAsync
class MyService{
public String saveMethod(List listOfData){
mail.sendEmailQuote(listOfData);
mail.sendEmailWorkflowTaskAssignment(listOfData);
myDao.saveData(listOfData);
}
}
I need to perform following methods in @Async way. Where should I put @EnableAsync annotation. This is not a Schedule related thing. This is happen when user click save button. Application is used flex spring blazeDS. There is no controller written by my self.
我需要以@Async 方式执行以下方法。我应该把@EnableAsync 注释放在哪里。这不是与计划相关的事情。当用户单击保存按钮时会发生这种情况。应用程序使用弹性弹簧 blazeDS。没有我自己写的控制器。
I have used @Async annotation in my code for following 2 methods. Those are in class call Mail.
我在我的代码中使用了 @Async 注释来执行以下 2 种方法。那些是在课堂上调用邮件。
@Async
sendEmailQuote(listOfData){}
@Async
sendEmailWorkflowTaskAssignment(listOfData){}
Could you help me to find where should I put @EnableAsync ?
你能帮我找到我应该把 @EnableAsync 放在哪里吗？
回答by shizhz
EnableAsyncis used for configuration and enable Spring's asynchronous method execution capability, it should not be put on your Serviceor Componentclass, it should be put on your Configurationclass like:
EnableAsync用于配置和启用 Spring 的异步方法执行能力，它不应该放在你的Service或Component类上，它应该放在你的Configuration类上，如：
@Configuration
@EnableAsync
public class AppConfig {
}
Or with more configuration of your AsyncExecutorlike:
或者有更多你AsyncExecutor喜欢的配置：
@Configuration
@EnableAsync
public class AppConfig implements AsyncConfigurer {
@Override
public Executor getAsyncExecutor() {
ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
executor.setCorePoolSize(7);
executor.setMaxPoolSize(42);
executor.setQueueCapacity(11);
executor.setThreadNamePrefix("MyExecutor-");
executor.initialize();
return executor;
}
}
Please refer to it's java docfor more details.
有关更多详细信息，请参阅它的 java 文档。
And for the tutorial you followed, EnableAsyncis put above Applicationclass, which extends AsyncConfigurerSupportwith AsyncExecutor configuration:
对于您遵循的教程，EnableAsync放在具有 AsyncExecutor 配置的Application类extends AsyncConfigurerSupport之上：
@SpringBootApplication
@EnableAsync
public class Application extends AsyncConfigurerSupport {
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
@Override
public Executor getAsyncExecutor() {
ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
executor.setCorePoolSize(2);
executor.setMaxPoolSize(2);
executor.setQueueCapacity(500);
executor.setThreadNamePrefix("GithubLookup-");
executor.initialize();
return executor;
}
}
回答by watts
Just make sure that @Async methods aren't called by the same class. Self invocation for proxy won't work.
只需确保@Async 方法不是由同一类调用即可。代理的自调用将不起作用。
