How to achieve high concurrency and high availability system architecture in Java
With the rapid development of the Internet, more and more enterprises are faced with high concurrency and high availability. Available challenges. In this context, how to achieve high concurrency and high availability system architecture in Java has become the focus of many developers. This article will explore some key technologies and methods to help readers achieve high concurrency and high availability Java systems.
Sample code:
ThreadPoolExecutor threadPool = new ThreadPoolExecutor(corePoolSize, maximumPoolSize, keepAliveTime, TimeUnit.SECONDS, new LinkedBlockingQueue<Runnable>()); threadPool.execute(new Runnable() { @Override public void run() { // 执行任务代码 } });
Sample code (using Redis as distributed cache):
// 连接Redis服务器 Jedis jedis = new Jedis("localhost", 6379); jedis.auth("password"); // 设置缓存 jedis.set("key", "value"); // 获取缓存 String value = jedis.get("key");
Sample code (using RabbitMQ):
// 创建连接 ConnectionFactory factory = new ConnectionFactory(); factory.setHost("localhost"); Connection connection = factory.newConnection(); // 创建通道 Channel channel = connection.createChannel(); // 定义队列 String queueName = "hello"; channel.queueDeclare(queueName, false, false, false, null); // 发送消息 String message = "Hello World!"; channel.basicPublish("", queueName, null, message.getBytes("UTF-8"));
Sample code (using Dubbo):
// 服务提供者 @Service public class HelloServiceImpl implements HelloService { @Override public String sayHello(String name) { return "Hello, " + name + "!"; } } // 服务消费者 public class HelloConsumer { @Reference private HelloService helloService; public String sayHello(String name) { return helloService.sayHello(name); } }
Summary:
In a high-concurrency and high-availability system architecture, Java provides many powerful technologies and tools to achieve . By rationally using thread pools, distributed caches, message queues, and distributed technologies, we can improve the throughput, response time, and availability of the system. I hope readers can better build high-concurrency and high-availability Java systems through the introduction of this article.
The above is the detailed content of How to achieve high concurrency and high availability system architecture in Java. For more information, please follow other related articles on the PHP Chinese website!