springboot：非web启动

需要运行一些调度任务，但是又不想放到web容器中运行。 见红色代码：

import java.util.concurrent.ThreadPoolExecutor;

import org.springframework.boot.WebApplicationType;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.core.task.AsyncTaskExecutor;
import org.springframework.scheduling.annotation.EnableAsync;
import org.springframework.scheduling.annotation.EnableScheduling;
import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;
import org.springframework.session.data.redis.config.annotation.web.http.EnableRedisHttpSession;

@SpringBootApplication
@EnableCaching
@EnableRedisHttpSession
@EnableAsync
@EnableScheduling
public class JspxScheduleApplication {

  public static void main(String[] args) {
    new SpringApplicationBuilder(JspxScheduleApplication.class).web(WebApplicationType.NONE).run(args);
  }

  @Bean
  public AsyncTaskExecutor asyncTaskExecutor() {
    ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
    executor.setThreadNamePrefix("jspt-schedule-");
    executor.setMaxPoolSize(30);
    executor.setCorePoolSize(10);
    executor.setQueueCapacity(0);
    executor.setRejectedExecutionHandler(new ThreadPoolExecutor.AbortPolicy());
    return executor;
  }

}

WebApplicationType 有三个值。

• NONE - 应用程序不应作为Web应用程序运行，也不应启动嵌入式Web服务器。
• REACTIVE - 应用程序应作为响应式Web应用程序运行，并应启动嵌入式响应式Web服务器。

• SERVLET - 应用程序应作为基于servlet的Web应用程序运行，并应启动嵌入式servlet Web服务器。