Add excel-export module: Apache POI 6.0.0 XSSF vs SXSSF under a fixed heap, 1,000,000 rows streamed with StreamingResponseBody, OpenCSV, sheet rolling, temp-file cleanup

Co-Authored-By: Claude Sonnet 5.5 <[email protected]> Claude-Session: https://claude.ai/code/session_017ic4b4VQVEJWetTT1dYzyJ
2026-10-29 06:18:42 +00:00
parent bded24d929
commit 9b1da079c6
29 changed files with 1113 additions and 0 deletions
@@ -0,0 +1,7 @@
+after write(), no dispose():       1 temp file(s) left: [poi-sxssf-sheet2787588911680201252.xml]
+after close() only:                0 temp file(s) left
+after dispose():                   0 temp file(s) left
+
+temp file size after writing 50,000 rows (9 columns), before dispose():
+  compressTempFiles=false: 24,339,585 bytes
+  compressTempFiles=true:  2,974,461 bytes