[英]Unable to instantiate an object of XSSFWorkbook in Java servlet
I'm trying to work with XSSFWorkbook in my web application. 我正在尝试在Web应用程序中使用XSSFWorkbook。 I ran a sample application with XSSFWorkbook as a plain Java program (with
public static void main(String args[])
) - it runs fine - an excel sheet is generated. 我使用XSSFWorkbook作为纯Java程序运行了一个示例应用程序(带有
public static void main(String args[])
)-运行良好-生成了一个excel工作表。
However, when I run the same piece of code in my java based web application - an instance of XSSFWorkbook is not instantiated. 但是,当我在基于Java的Web应用程序中运行相同的代码时,不会实例化XSSFWorkbook的实例。 No Exception is thrown either!
也不抛出异常!
Please help! 请帮忙!
the below code works perfectly fine for me
public void trackerUploadListener(FileUploadEvent event) throws Exception {
UploadedFile tracker = event.getUploadedFile();
XSSFWorkbook wb = null;
InputStream stream = tracker.getInputStream();
wb = new XSSFWorkbook(stream);
}
Here, the listener is called from my xhtml page.
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