itext7的PdfReader在Java中不起作用

Question

This is my code

import com.itextpdf.kernel.pdf.PdfReader;
...
...
try{
   PdfReader reader = new PdfReader("C:/Users/Warrior/Documents/1.pdf");
}catch(IOException e){
   e.printStackTree();
}

And I import pdfxfa-2.0.1.jar file in eclipse. But not proceed in new PdfReader . And It is not caught in the catch clause and not print error. Please help me. Thank you.

Answer 1

You should try adding another more general exception to see if there is an error, ie

try{
   PdfReader reader = new PdfReader("..."); // The path to your pdf document
   // What do you want to achieve with the PdfReader instance here?
   // Do some action with your reader. You don't need to assign without using it
   // to see what is happening.
} catch(IOException e){
   e.printStackTrace();
} catch(Exception ex) {
   ex.printStackTrace();
}

If still the exception is not thrown, and caught by the Exception then you can blame the PdfReader .

You cannot really tell where the problem is without you showing how you're invoking methods of the reader . Merely assigning the reader does not mean the PdfReader is not working just because no error is thrown.