From ea0020dbda8f1e7de2c825d9b7a0732e45ae7f80 Mon Sep 17 00:00:00 2001 From: zhaohc Date: Fri, 27 Sep 2024 20:40:28 +0800 Subject: [PATCH] make the default temporary directory contain the username to avoid permission issues when deploying applications on the same server with multiple users --- .../poi/util/DefaultTempFileCreationStrategy.java | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/poi/src/main/java/org/apache/poi/util/DefaultTempFileCreationStrategy.java b/poi/src/main/java/org/apache/poi/util/DefaultTempFileCreationStrategy.java index 588c027b61..5c28e010b3 100644 --- a/poi/src/main/java/org/apache/poi/util/DefaultTempFileCreationStrategy.java +++ b/poi/src/main/java/org/apache/poi/util/DefaultTempFileCreationStrategy.java @@ -47,6 +47,9 @@ public class DefaultTempFileCreationStrategy implements TempFileCreationStrategy /** To use files.deleteOnExit after clean JVM exit, set the -Dpoi.delete.tmp.files.on.exit JVM property */ public static final String DELETE_FILES_ON_EXIT = "poi.delete.tmp.files.on.exit"; + /** JVM property for the current username. */ + private static final String JAVA_PROP_USER_NAME = "user.name"; + /** The directory where the temporary files will be created (null to use the default directory). */ private volatile File dir; @@ -85,10 +88,17 @@ public class DefaultTempFileCreationStrategy implements TempFileCreationStrategy if (tmpDir == null) { throw new IOException("System's temporary directory not defined - set the -D" + JAVA_IO_TMPDIR + " jvm property!"); } + String poifilesDir = POIFILES; + // Make the default temporary directory contain the username to avoid permission issues + // when deploying applications on the same server with multiple users + String username = System.getProperty(JAVA_PROP_USER_NAME); + if (null != username && !username.isEmpty()) { + poifilesDir += "_" + username; + } dirLock.lock(); try { if (dir == null) { - Path dirPath = Paths.get(tmpDir, POIFILES); + Path dirPath = Paths.get(tmpDir, poifilesDir); File fileDir = dirPath.toFile(); if (fileDir.exists()) { if (!fileDir.isDirectory()) {