Programmer1970

Sep 23, 2024 · Backend Development

Efficient Large-Scale Data Export in SpringBoot: Parallel EasyExcel to Multiple Files and ZIP Download

The article demonstrates how to avoid blocking SpringBoot services during massive Excel exports by splitting data, using CompletableFuture with a ThreadPoolTaskExecutor to generate multiple Excel files concurrently via EasyExcel, then compressing them into a ZIP for client download, including full code and resource‑cleanup details.