Question

嗨，我在加载Excel（.xlsx）时遇到问题。

当我尝试加载“巨大”文件（118 MB）时，程序向我抛出此错误：

org.apache.poi.POIXMLException：java.lang.reflect.InvocationTargetException

但是，如果我尝试使用较小的文件（18 KB），就没有问题。

我已经尝试过使用以下代码：

public ExcelFile(String path){
    filePath = path;
    try {
        OPCPackage pkg = OPCPackage.open(new File(filePath));
        workbook = new XSSFWorkbook(pkg);
        sheet = workbook.getSheetAt(0);
    } catch (Exception e) {
        System.out.println("Error en carga o lectura de archivo" + e);
    }
}

及其他：

public ExcelFile(String path){
    filePath = path;
    try {
        FileInputStream file = new FileInputStream(new File(filePath));
        workbook = new XSSFWorkbook(file);
        sheet = workbook.getSheetAt(0);
    } catch (Exception e) {
        System.out.println("Error en carga o lectura de archivo" + e);
    }
}

我希望有人能帮助我。谢谢

这是完整的堆栈跟踪

Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
Fail loading file org.apache.poi.POIXMLException: java.lang.reflect.InvocationTargetException
    at dashboarddesktop.ExcelFile.countRows(ExcelFile.java:55)
    at dashboarddesktop.mediator.actionPerformed(mediator.java:70)
    at java.awt.Button.processActionEvent(Button.java:409)
    at java.awt.Button.processEvent(Button.java:377)
    at java.awt.Component.dispatchEventImpl(Component.java:4889)
    at java.awt.Component.dispatchEvent(Component.java:4711)
    at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:760)
    at java.awt.EventQueue.access$500(EventQueue.java:97)
    at java.awt.EventQueue$3.run(EventQueue.java:709)
    at java.awt.EventQueue$3.run(EventQueue.java:703)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
    at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:90)
    at java.awt.EventQueue$4.run(EventQueue.java:733)
    at java.awt.EventQueue$4.run(EventQueue.java:731)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
    at java.awt.EventQueue.dispatchEvent(EventQueue.java:730)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:205)
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
    at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)

org.apache.poi.POIXMLException：具有大型文件的java.lang.reflect.InvocationTargetException

0 个答案: