java - Spring配置属性问题

Question

我有一个 Spring Boot 应用程序&这段代码如下

@ConfigurationProperties(prefix = “asynchronous-helper”)
public class AsynchronousHelper {
   private transient ExecutorService executor;
}

在属性文件中我有

asynchronous-helper.executor.maximumPoolSize=10
asynchronous-helper.executor.corePoolSize=10

虽然 maxPoolSize 有效，但 corePoolSize 失败并出现以下错误

Failed to bind properties under ‘asynchronous-helper.executor’ to java.util.concurrent.ExecutorService:

Property: asynchronous-helper.executor.corepoolsize
Value: 10
Origin: “asynchronous-helper.executor.corePoolSize” from property source “class path resource [backend-product.properties]”
Reason: Failed to bind properties under ‘asynchronous-helper.executor’ to java.util.concurrent.ExecutorService

Action:
Update your application’s configuration

执行器的具体类是java.util.concurrent.ThreadPoolExecutor

知道为什么会发生这种情况以及如何解决它吗？

Answer 1

这有效。创建了一个配置 bean

@Configuration
public class AsyncHelperConfig {
  @Value("${asynchronous-helper.executor.core-pool-size:10}")
  private Integer corePoolSize;

  @Value("${asynchronous-helper.executor.maximum-pool-size:10}")
  private Integer maximumPoolSize;

  @Value("${asynchronous-helper.executor.keep-alive-time:10}")
  private Integer keepAliveTime;

  private transient ExecutorService executor;

@Bean
public AsynchronousHelper asynchronousHelper(){
    AsynchronousHelper asynchronousHelper = new AsynchronousHelper();
    executor = new ThreadPoolExecutor(corePoolSize, maximumPoolSize, 
   keepAliveTime, TimeUnit.MINUTES,
            new LinkedBlockingQueue<Runnable>());
    asynchronousHelper.setExecutor(executor);
    return asynchronousHelper;
}

并在 beans.xml 添加以下配置

<bean id="AsyncHelperConfig" 
    class="asynchonous.AsyncHelperConfig"/>