1publicImportExcel(String fileName, InputStream is,intheaderNum,intsheetIndex)throwsInvalidFormatException, IOException {2if(StringUtils.isBlank(fileName)) {3thrownewRuntimeException("导入文档为空!");4}elseif(file
4.保存数据库-没有执行 5.在日志中发现 OutOfMemoryError:GC overhead limit exceeded 2021-06-29 11:30:51.237[ERROR] com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(2779)[Druid-ConnectionPool-Create-1431142837]-create connection SQLException, url: xxxxx java.sql.SQLException: java.la...
1.减少内存中存在的封装类型对象个数 第一,这个我们可以使用分页查询的形式进行查询; 第二我们尽量使用String和int类型存储数据 2.替换POI操作文件形式,使用文件流形式写数据,但是Excel是有严格格式的文件,直接采用文本形式写入流根本无法用Excel形式打开,这时候我们想到了一个文件格式,那就是 csv格式的文件,本质上是...
是指在使用Apache POI库创建XLSX格式的Excel文件时,由于内存不足而导致的错误。 Apache POI是一个用于操作Microsoft Office格式文件的Java库,包括Excel、Word和PowerPoint等文件。在使用Apache POI创建大型Excel文件时,可能会遇到OutOfMemoryError错误,这是因为XSSFWorkbook对象需要占用大量的内存空间。
Python 使用一种称为 引用计数 的垃圾回收机制来管理内存。在这种机制下，每个对象都有一个引用计数器，...
This tutorial will explain the VBA Out of Memory Error.The VBA Out of Memory error occurs when Excel has used all the resources of your machine while running a macro and literally runs out of memory to carry on calculating or running code. This could occur when you have a lot of applicat...
asking for an example code for x-y plotting in visual studio using c# ASP.NET C# - Microsoft Excel cannot open or save any more documents because there is not enough available memory or disk space. • Assembly file version, just Major and Minor Assembly generation failed: Referenced assembly...
Meanwhile, I got this error message:system.outofmemoryexception was thrownwhen i try to export gridview to excel file (50K data) My reference URL to export gridview to excel file. Export GridView to Excel without losing gridlines in Excel file in ASP.Net ...
11. Excel Import failed with error code 0xC02020E8. This error occurs when the Excel sheet contains unmapped fields. Remove the unmapped fields from the Excel sheet and try the import again. 12. Import fails with "The column in entity has incorrect data. Please correct the data and try th...
Once all instances of Excel are closed, open the Excel workbook and test. If the error continues to occur, go to the next method. Method 3: Close all applications The error may occur if other applications are active and using computer memory while you are trying to use, open,...