SpringBoot全局线程池

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 java.util.concurrent.Executor;
import java.util.concurrent.ThreadPoolExecutor;

@Configuration
@EnableAsync
public class ThreadToolConfig {
    @Bean("msgThreadPool")
    public Executor msgThreadPool() {
        //获取当前机器的核数
        int cpuNum = Runtime.getRuntime().availableProcessors();
        ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
        //配置核心线程数cpuNum
        executor.setCorePoolSize(cpuNum);
        //配置最大线程数cpuNum * 2
        executor.setMaxPoolSize(cpuNum * 2);
        //配置队列大小
        executor.setQueueCapacity(300);
        //线程存活时间
        executor.setKeepAliveSeconds(60);
        //配置线程池中的线程的名称前缀
        executor.setThreadNamePrefix("pool-thread-");
        // CALLER_RUNS：不在新线程中执行任务，而是有调用者所在的线程来执行
        executor.setRejectedExecutionHandler(new ThreadPoolExecutor.CallerRunsPolicy());
        //执行初始化
        executor.initialize();
        return executor;
    }
}

import lombok.extern.slf4j.Slf4j;
import org.springframework.scheduling.annotation.Async;
import org.springframework.stereotype.Component;
import org.yeauty.pojo.Session;

@Component
@Slf4j
public class MutiThreadUtil {
    @Async("msgThreadPool")
    public void sendMessageText(Session session, String msg){
        log.error("线程名：" + Thread.currentThread().getName());
        if(session!=null && session.isActive()){
            session.sendText(msg);
        }
    }
}

@Autowired
private MutiThreadUtil mutiThreadUtil;

public void sendMessageText(){
  mutiThreadUtil.sendMessageText("123");
}