* 修复长时间运行会产生大对象的bug [Issue #2725](https://github.com/alibaba/easyexcel/issues/2725)

easyexcel-core/src/main/java/com/alibaba/excel/util/FileUtils.java

@@ -58,11 +58,9 @@ public class FileUtils {
         // Create a temporary directory in advance
         File tempFile = new File(tempFilePrefix);
         createDirectory(tempFile);
-        tempFile.deleteOnExit();
         // Initialize the cache directory
         File cacheFile = new File(cachePath);
         createDirectory(cacheFile);
-        cacheFile.deleteOnExit();
     }
 
     /**
@@ -160,7 +158,6 @@ public class FileUtils {
         File poiFilesPathFile = new File(poiFilesPath);
         createDirectory(poiFilesPathFile);
         TempFile.setTempFileCreationStrategy(new DefaultTempFileCreationStrategy(poiFilesPathFile));
-        poiFilesPathFile.deleteOnExit();
     }
 
     public static File createCacheTmpFile() {

pom.xml

@@ -20,7 +20,7 @@
 
 
     <properties>
-        <revision>3.1.1</revision>
+        <revision>3.1.2</revision>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <jdk.version>1.8</jdk.version>
         <gpg.skip>true</gpg.skip>

update.md

@@ -1,3 +1,6 @@
+# 3.1.2
+* 修复长时间运行会产生大对象的bug [Issue #2725](https://github.com/alibaba/easyexcel/issues/2725)
+
 # 3.1.1
 * 修复部分xlsx无法读取超链接的bug