Question

我正在尝试使用以下代码实例化Workbook：

Workbook workbook = WorkbookFactory.create(new File(excelWorkbookFilePath));

我是这样做的，因为工作簿可以是.xlsx或.xls。但是，它最终会抛出这个错误：

Exception in thread "main" org.apache.poi.POIXMLException: java.lang.reflect.InvocationTargetException
    at org.apache.poi.POIXMLFactory.createDocumentPart(POIXMLFactory.java:65)
    at org.apache.poi.POIXMLDocumentPart.read(POIXMLDocumentPart.java:601)
    at org.apache.poi.POIXMLDocument.load(POIXMLDocument.java:174)
    at org.apache.poi.xssf.usermodel.XSSFWorkbook.<init>(XSSFWorkbook.java:249)
    at org.apache.poi.ss.usermodel.WorkbookFactory.create(WorkbookFactory.java:293)
    at org.apache.poi.ss.usermodel.WorkbookFactory.create(WorkbookFactory.java:252)
    at org.apache.poi.ss.usermodel.WorkbookFactory.create(WorkbookFactory.java:231)
    at com.iconectiv.handle.ExcelHandle.<init>(ExcelHandle.java:43)
Caused by: java.lang.reflect.InvocationTargetException
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
    at org.apache.poi.xssf.usermodel.XSSFFactory.createDocumentPart(XSSFFactory.java:56)
    at org.apache.poi.POIXMLFactory.createDocumentPart(POIXMLFactory.java:62)
    ... 9 more
Caused by: java.lang.NoSuchMethodError: org.apache.xmlbeans.XmlOptions.setLoadEntityBytesLimit(I)Lorg/apache/xmlbeans/XmlOptions;
    at org.apache.poi.POIXMLTypeLoader.<clinit>(POIXMLTypeLoader.java:50)
    at org.apache.poi.xssf.model.ThemesTable.<init>(ThemesTable.java:85)
    ... 15 more

我做了一些研究，发现InvocationTargetException不是真正的例外，所以我尝试用catch语句来抓住它：

} catch (InvocationTargetException e) {
    e.getCause().printStackTrace();
}

但是，我在Eclipse中遇到一个错误，说我无法捕捉到它，因为它永远不会被抛出。为什么我收到此错误？任何帮助将不胜感激，提前谢谢！

注意：我使用的是Apache POI 3.14。

Answer 1

抛出的实际错误是 NoSuchMethodError: org.apache.xmlbeans.XmlOptions.setLoadEntityBytesLimit(I)Lorg/apache/xmlbeans/XmlOptions;

您可能在类路径中没有xmlbean jar，或者您可能有多个版本的jar

Answer 2

您可以根据文件名单独为.xls和.xlsx扩展名实例化工作簿：

Workbook wb = null;
    if (fileName.endsWith(".xlsx")) {
        wb = new XSSFWorkbook(in);
    }else{
        fs = new POIFSFileSystem(in);
        wb = (Workbook) new HSSFWorkbook(fs);   
    }

Answer 3

我用相同的版本更新了pom。早些时候，我对poi-ooxml使用的版本是3.9.0，对于poi是4.0。

<ContentPage.Content>
    <StackLayout>
        <WebView
            x:Name="website"
            HeightRequest="1000"
            Navigated="Website_Navigated"
            Navigating="Website_Navigating"
            WidthRequest="1000" />
    </StackLayout>
</ContentPage.Content>


public partial class Page19 : ContentPage
{
    public Page19 ()
    {
        InitializeComponent ();
        UrlWebViewSource source = new UrlWebViewSource();
        //source.Url = "https://www.google.com";
        source.Url = "http://www.pdf995.com/samples/pdf.pdf";
        website.Source = source;
    }

    private void Website_Navigated(object sender, WebNavigatedEventArgs e)
    {

        website.IsVisible = false;
    }

    private void Website_Navigating(object sender, WebNavigatingEventArgs e)
    {

        website.IsVisible = true;
        if (e.Url.Contains("pdf") && !e.Url.Contains("drive.google.com"))
        {
            var webview = (WebView)sender;
            website.Source = "https://drive.google.com/viewerng/viewer?embedded=true&url=" + e.Url;
        }
    }
}

对我有用

Apache POI工作簿抛出java.lang.reflect.InvocationTargetException

3 个答案: