读取大型xls文件时，超出了GC开销限制

Question

When I run my project in Netbeans IDE (compiling it and testing it), it works fine. It enables me reading xls file with size of 25000 rows and extract all the infromation above, then save them into database.

The problem appears when I generate the installer and deliver it. When I install my application and run it, I obtain that error:

java.lang.OutOfMemoryError: GC overhead limit exceeded
    at jxl.read.biff.File.read(File.java:217)
    at jxl.read.biff.Record.getData(Record.java:117)
    at jxl.read.biff.CellValue.<init>(CellValue.java:94)
    at jxl.read.biff.LabelSSTRecord.<init>(LabelSSTRecord.java:53)
    at jxl.read.biff.SheetReader.read(SheetReader.java:412)
    at jxl.read.biff.SheetImpl.readSheet(SheetImpl.java:716)
    at jxl.read.biff.WorkbookParser.getSheet(WorkbookParser.java:257)
    at com.insy2s.importer.SemapExcelImporter.launchImport(SemapExcelImporter.java:82)
    at//staff

I even user POI libraries but I got same scenario.

UPDATE:

In messages.log file of my application, I found this strange values (I have changed them in netbeans.conf )

Input arguments:
    -Xms24m
    -Xmx64m
    -XX:MaxPermSize=256m
    -Dnetbeans.user.dir=C:\Program Files\insy2s_semap_app
    -Djdk.home=C:\Program Files\Java\jdk1.8.0_05
    -Dnetbeans.home=C:\Program Files\insy2s_semap_app\platform

Answer 1

OK, I got the answer... Let's begin from the beginning.

It is true that Microsoft documents hanlders' libraries need much resources but not so bad to cause application running failure as I thought at the beginning. In fact, that probleme has revealed to me a weakness and a shortage.

Because of working with Netbeans 8.0.2, the new property

app.conf

should be taken into consideration. It has all what needed to configure our applications. But it is not possible to edit it directly so to increase the max permitted memory, we have to change the values in

harness/etc/app.conf

in netbeans installation directory. For more details look here .