@ServletComponentScan(basePackages= {"com.qyj.listeners"})// 添加監(jiān)聽器所在的包名

package com.qyj.listeners;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.data.redis.core.StringRedisTemplate;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
import javax.servlet.annotation.WebListener;
@WebListener
public class AudioPlayListener implements ServletContextListener {
    @Autowired
    private StringRedisTemplate redisTemplate;
    @Value("${qyj.fee-type}")
    private String feeType;
    // 當(dāng)后臺被初始化，即發(fā)生了tomcat啟動了事件，固定用法
    @Override
    public void contextInitialized(ServletContextEvent event) {
        // 你要做的事兒，寫在這里
        System.out.println("AudioPlay is running(語音播報-循環(huán)監(jiān)聽中)...");
        // 新建線程while循環(huán)處理語音播報
        new Thread(new AudioPlayThread(redisTemplate, feeType)).start();
    }
    // 當(dāng)后臺被銷毀，即發(fā)生了tomcat關(guān)閉了事件，固定用法
    @Override
    public void contextDestroyed(ServletContextEvent event) {
        System.out.println("后臺被銷毀");
    }
}

package com.qyj.listeners;
import com.qyj.constant.RedisConstant;
import com.qyj.utils.AudioPlayUtil;
import org.springframework.data.redis.core.StringRedisTemplate;
import java.util.concurrent.TimeUnit;
public class AudioPlayThread implements Runnable{
    // 因為線程是new出來的 所以此處不能再通過依賴注入獲取信息了
    private String feeType;
    private StringRedisTemplate redisTemplate;
    public AudioPlayThread(StringRedisTemplate redisTemplate, String feeType) {
        this.redisTemplate = redisTemplate;
        this.feeType = feeType;
    }
    @Override
    public void run() {
        while(true){
            try {
                System.out.println("這是繼承Thread類創(chuàng)建的線程");
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }
}