Design of a Digital Cultural Tourism APP for Harbin Based on microservice Architecture

Aiming at the digital demand of Harbin's cultural tourism, this paper designs a cultural tourism APP based on microservice architecture. By analyzing functional and non-functional requirements, a three-layer microservice architecture comprising API gateway, business service, and data persistence layers is constructed. Core modules such as scenic spots, activities, users, and system management are split accordingly. Combined with technologies including Nacos and Redis, service registration, cache optimization, and high-concurrency adaptation are realized. Performance tests show that the system achieves a maximum throughput of 3,200 QPS under peak load, with Redis reducing average database read latency from 180 ms to 12 ms, representing a latency reduction of approximately 93.3%. The architecture leverages microservice decoupling to address the unique high-concurrency pressure of Harbin's Ice and Snow Festival while integrating distinctive local cultural resources such as ice-snow attractions and Russian-style architecture. This design provides both a scalable technical solution and a replicable model for digital transformation in regional cultural tourism.