In the era of separate frontends and backends, our lives are full of countless opportunities and challenges—including those maddening bugs that pop up out of nowhere. Today, we are going to discuss a classic problem that leaves countless developers unsure whether to laugh or cry: backend Long-type IDs that are too long cause precision loss on the frontend. This problem really is a “root of all evil”—why does JavaScript have to safely handle only numbers within Number.MAX_SAFE_INTEGER (that is, 9007199254740991)? If you have ever racked your brains over this problem, don’t worry: you are not alone. Today, we will not only dissect this “problem of the century” with humor, but also walk you through solving it at its root, so your code no longer “loses its precision.”
RabbitMQ: Based on AMQP, it supports multiple messaging protocols and offers flexible routing. It suits scenarios requiring complex routing and protocol support, but its relatively low throughput makes it more suitable for small to medium-scale messaging. RocketMQ: An open-source distributed messaging middleware from Alibaba, supporting high throughput and low latency. It is suitable for financial-grade transactional messaging and real-time big data processing. It supports ordered, scheduled, and transactional messages, making it suitable for large-scale distributed systems. Kafka: A high-throughput message queue with persistence, suitable for handling large-scale data streams and real-time data streams, and widely used in big data ecosystems. Its partitioning and replication mechanisms ensure high availability and data consistency, making it particularly suitable for log collection and stream processing.
In microservice architectures, distributed message queues play a crucial role. RabbitMQ, a widely used open-source message queue system, offers high availability and reliability while supporting multiple message queue models to meet different business needs.
Which design patterns are used in the JDK?Structural patterns,Adapter pattern,Bridge pattern,Composite pattern,Decorator pattern,Facade pattern,Flyweight pattern,Proxy pattern
In Java development, we often need to determine file types. For example, a file upload feature needs to check whether a file uploaded by a user is of an accepted type. This article explains in detail how to obtain file types using Java.