【前端】Vue中引入excel模板并下载以及XLSX使用

引入Jedis

<dependency>
    <groupId>redis.clients</groupId>
    <artifactId>jedis</artifactId>
    <version>3.7.0</version>
</dependency>

指令简介

rpush

blpop

Java使用Redis实现消息队列

import redis.clients.jedis.Jedis;

public class Producer {
    private Jedis jedis;
    private String queueName;

    public Producer(String queueName) {
        this.jedis = new Jedis("localhost", 6379);
        this.queueName = queueName;
    }

    public void produce(String message) {
        jedis.rpush(queueName, message);
    }
}

import redis.clients.jedis.Jedis;
import java.util.List;

public class Consumer {
    private Jedis jedis;
    private String queueName;

    public Consumer(String queueName) {
        this.jedis = new Jedis("localhost", 6379);
        this.queueName = queueName;
    }

    public String consume() {
    	//参数1是阻塞时长，0代表不限时
        List<String> result = jedis.blpop(0, queueName);
        return result.get(1);
    }
}

public class MainP {
    public static void main(String[] args) {

        Producer producer = new Producer("queue");

        Thread producerThread = new Thread(() -> {
            producer.produce("hello world");
        });

        producerThread.start();
    }
}

public class MainC {

    public static void main(String[] args) {
        Consumer consumer = new Consumer("queue");

        Thread consumerThread = new Thread(() -> {
        	//当没有消息的时候，此处会自动堵塞等待消息
            while (true){
                String message = consumer.consume();
                System.out.println("消费消息: " + message);
            }
        });

        consumerThread.start();
    }
}