E69687e5ad97e58c96e38191 Articles

How to Export and Import CSV in Spring Boot - Handling Character Encoding, Large Datasets, and Validation with OpenCSV

A practical guide to implementing CSV download/upload with Spring Boot and OpenCSV. Covers Shift_JIS/UTF-8+BOM support to prevent garbled text in Excel, memory-efficient output of large datasets with StreamingResponseBody, mapping with @CsvBindByName, and row-level validation with error-row return on import, all explained with code.

2026-07-14