Could not able to add properties to the pargraph in doc file using apache poi HWPF

[varun narisetty]

hi frds i am new to the coderanch
i am using this code

import java.io.*;

import org.apache.poi.hpsf.CustomProperties;
import org.apache.poi.hpsf.DocumentSummaryInformation;
import org.apache.poi.hwpf.HWPFDocument;
import org.apache.poi.hwpf.usermodel.*;
import org.apache.poi.poifs.filesystem.POIFSFileSystem;

public class CreateWordDoc {

    public static void main (String[] args) throws Exception {
        // POI apparently can't create a document from scratch,
        // so we need an existing empty dummy document
        POIFSFileSystem fs = new POIFSFileSystem(new FileInputStream("empty.doc"));
        HWPFDocument doc = new HWPFDocument(fs);

        // centered paragraph with large font size
        Range range = doc.getRange();
        Paragraph par1 = range.insertAfter(new ParagraphProperties(), 0);
        par1.setSpacingAfter(200);
        par1.setJustification((byte) 1);
        // justification: 0=left, 1=center, 2=right, 3=left and right

        CharacterRun run1 = par1.insertAfter("one");
        run1.setFontSize(2 * 18);
        // font size: twice the point size

        // paragraph with bold typeface
        Paragraph par2 = run1.insertAfter(new ParagraphProperties(), 0);
        par2.setSpacingAfter(200);
        CharacterRun run2 = par2.insertAfter("two two two two two two two two two two two two two");
        run2.setBold(true);

        // paragraph with italic typeface and a line indent in the first line
        Paragraph par3 = run2.insertAfter(new ParagraphProperties(), 0);
        par3.setFirstLineIndent(200);
        par3.setSpacingAfter(200);
        CharacterRun run3 = par3.insertAfter("three three three three three three three three three "
            + "three three three three three three three three three three three three three three "
            + "three three three three three three three three three three three three three three");
        run3.setItalic(true);

        // add a custom document property (needs POI 3.5; POI 3.2 doesn't save custom properties)
        DocumentSummaryInformation dsi = doc.getDocumentSummaryInformation();
        CustomProperties cp = dsi.getCustomProperties();
        if (cp == null)
            cp = new CustomProperties();
        cp.put("myProperty", "foo bar baz");
        dsi.setCustomProperties(cp);

        doc.write(new FileOutputStream("new-hwpf-file.doc"));
    }
}  

the problem I am facing here is I am able to generate the doc file but the properties are not assigned to the paragraphs.
one more issue is that the doc file generated contains these paragraphs in every page and the number of pages also increasing continuously.
if any one know the solution please help me.
thanks in advance.

[Ulf Dittmer]

Welcome to JavaRanch.

the problem I am facing here is I am able to generate the doc file but the properties are not assigned to the paragraphs.

What do you mean by "properties" - bold, font size and such?

one more issue is that the doc file generated contains these paragraphs in every page and the number of pages also increasing continuously.

This code only creates a single page, so what do you mean by "in every page"? Under which circumstances are you getting more than one page?

Which version of POI are you using? If it's anything but 3.5, get the latest one.

[varun narisetty]

I am using the POI 3.5 what you said is correct here properties I mean are bold italic e.t.c
here the doc file generated contains more than one page and the page numbers are increasing continuously.

thanks for your reply

[Ulf Dittmer]

Please post replies once, not 5 times.

Just to make sure I understand: The file "empty.doc" contains absolutely nothing at the beginning, the file "new-hwpf-file.doc" does not exist, then you run the above code once and end up with a file "new-hwpf-file.doc" that contains multiple pages? That doesn't sound right. And what do you mean by "continuously"?

[varun narisetty]

I have generated a document using above code in Java , and when ever I try to open this document , number of pages are getting added automatically with the same content that I have given to the first page and subsequently the pc is hanging , You are right that this code should generate only one page, but its not happening here , it is generating multiple pages and its halting nowhere!!

[Ulf Dittmer]

You shouldn't open the document until the code has finished running. Are you saying opening the document somehow causes the code to run again?

[varun narisetty]

I am not opening the document before its running.
even i try to open the document in another system also I am getting the same result.

[Ashok Sarathy]

Hi,

I used the program and when i compile i get

Exception in thread "main" java.lang.NullPointerException
at action.CreateWordDoc.main(CreateWordDoc.java:47)


I believe line 47 is CustomProperties cp = dsi.getCustomProperties(); i tried to debug and the object dsi is null. I did create empty.doc and gave the path correctly. I know this for sure because at first i was getting file not found exception and after i created the file and specified the path this exception went away.


I also tried commenting the entire setting custom document property part. When i did this, the program runs but nothing was getting written into new-hwpf-file.doc.

Any pointers on why this is happening? I am using poi 3.5, i also tried with poi 3.6.


Thanks,
Ashok

[Martijn Verburg]

Hi Ashok and welcome to Javaranch! You may be best off starting a new thread with your specific question and the code you are using.

[Ashok Sarathy]

Hi,

The code i am using is

   1. import java.io.*;  
   2.   
   3. import org.apache.poi.hpsf.CustomProperties;  
   4. import org.apache.poi.hpsf.DocumentSummaryInformation;  
   5. import org.apache.poi.hwpf.HWPFDocument;  
   6. import org.apache.poi.hwpf.usermodel.*;  
   7. import org.apache.poi.poifs.filesystem.POIFSFileSystem;  
   8.   
   9. public class CreateWordDoc {  
  10.   
  11.     public static void main (String[] args) throws Exception {  
  12.         // POI apparently can't create a document from scratch,  
  13.         // so we need an existing empty dummy document  
  14.         POIFSFileSystem fs = new POIFSFileSystem(new FileInputStream("empty.doc"));  
  15.         HWPFDocument doc = new HWPFDocument(fs);  
  16.   
  17.         // centered paragraph with large font size  
  18.         Range range = doc.getRange();  
  19.         Paragraph par1 = range.insertAfter(new ParagraphProperties(), 0);  
  20.         par1.setSpacingAfter(200);  
  21.         par1.setJustification((byte) 1);  
  22.         // justification: 0=left, 1=center, 2=right, 3=left and right  
  23.   
  24.         CharacterRun run1 = par1.insertAfter("one");  
  25.         run1.setFontSize(2 * 18);  
  26.         // font size: twice the point size  
  27.   
  28.         // paragraph with bold typeface  
  29.         Paragraph par2 = run1.insertAfter(new ParagraphProperties(), 0);  
  30.         par2.setSpacingAfter(200);  
  31.         CharacterRun run2 = par2.insertAfter("two two two two two two two two two two two two two");  
  32.         run2.setBold(true);  
  33.   
  34.         // paragraph with italic typeface and a line indent in the first line  
  35.         Paragraph par3 = run2.insertAfter(new ParagraphProperties(), 0);  
  36.         par3.setFirstLineIndent(200);  
  37.         par3.setSpacingAfter(200);  
  38.         CharacterRun run3 = par3.insertAfter("three three three three three three three three three "  
  39.             + "three three three three three three three three three three three three three three "  
  40.             + "three three three three three three three three three three three three three three");  
  41.         run3.setItalic(true);  
  42.   
  43.         // add a custom document property (needs POI 3.5; POI 3.2 doesn't save custom properties)  
  44.         DocumentSummaryInformation dsi = doc.getDocumentSummaryInformation();  
  45.         CustomProperties cp = dsi.getCustomProperties();  
  46.         if (cp == null)  
  47.             cp = new CustomProperties();  
  48.         cp.put("myProperty", "foo bar baz");  
  49.         dsi.setCustomProperties(cp);  
  50.   
  51.         doc.write(new FileOutputStream("new-hwpf-file.doc"));  
  52.     }  
  53. }    

when i compile i get

Exception in thread "main" java.lang.NullPointerException
at action.CreateWordDoc.main(CreateWordDoc.java:47)


I believe line 47 is CustomProperties cp = dsi.getCustomProperties(); i tried to debug and the object dsi is null. I did create empty.doc and gave the path correctly. I know this for sure because at first i was getting file not found exception and after i created the file and specified the path this exception went away.


I also tried commenting the entire setting custom document property part. When i did this, the program runs but nothing was getting written into new-hwpf-file.doc.

Any pointers on why this is happening? I am using poi 3.5, i also tried with poi 3.6.


Thanks,
Ashok

[Johns Abraham]

Hi varun narisetty, did you got any solution for your problem?
I am facing the same !!
I there any sample sites for this(word creation using apache poi)?
Please help me, Thanks, Johns