view PDF files using java

bryan523 · #1 24-Oct-2005, 00:54

Hi all,

does someone know how to view PDF file using java? i would like to view the pdf files while i run the java program! hope someone can show me the coding example! Thanks!

Paramesh · #2 24-Oct-2005, 07:24

Hi bryan,

Do you want to open the files in Adobe reader or your java application?

If you want to read the file in a java application itself, it is difficult.

Else,
You can use the Runtime.exec function.
Like this:

JAVA Code:

Runtime.getRuntime().exec("rundll32 url.dll,FileProtocolHandler " + file);

So, by specifying a *.pdf file, Windows will try to start the appropriate program (Adobe Reader or whatever application is registered for PDF files).

You can find more information about Runtime.exec, visit this link:
Runtime java reference

http://www.javaworld.com/javaworld/jw-12-2000/jw-1229-traps.html

How to use Runtime.exec()

If you want it to open in your java application itself, visit this link:
Java Libraries to read and write pdf files

Regards,
Paramesh.

bryan523 · #3 25-Oct-2005, 02:57

Hi paramesh,

thanks to help me but i m to weak in java so i cant get to solve the problem with the function u gv me! can u gv me a simple full program example here that hw to call the pdf file out using java program which when i run the java program then the pdf file will open using acrobat reader. my pdf file name is chart.pdf and the directory is ( C:\chart.pdf ). soli cos disturb u n gv u trouble.

Rgds,
bryan

Paramesh · #4 25-Oct-2005, 03:29

Hi Bryan,

Here is a sample program:

JAVA Code:

class pdfopen           //class pdfopen
{
    public static void main(String args[])       //main function
    {
        try                                      //try statement
        {
            Runtime.getRuntime().exec("rundll32 url.dll,FileProtocolHandler " + "c:\\chart.pdf");   //open the file chart.pdf

        } catch (Exception e)                    //catch any exceptions here
          {
              System.out.println("Error" + e );  //print the error
          }
    }
}

I hope you know what try and catch statements are!
If you have read those links, then you'll understand why this is a bad method. But it is simple. Thats why i posted it.

Quote:

soli cos disturb u n gv u trouble.

Feel free to ask your doubts.

Cheers,
Paramesh.

bryan523 · #5 25-Oct-2005, 03:54

Thanks you very much paramesh! i manage to open it already! Thanks to help a java newbie!

Rgds,
bryan

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