Replacing a text in Apache POI XWPF not working

Question

I\'m currently trying to work on the code mentioned on a previous post called Replacing a text in Apache POI XWPF.

I have tried the below and it works but I don\'t k

Answer 1

Your logic is not quite right. You need to collate all the text in the runs first and then do the replace. You also need to remove all runs for the paragraph and add a new single run if a match on "test" is found.

Try this instead:

public class testPOI {

    public static void main(String[] args) throws Exception{

        String filepath = "F:\\MASTER_DOC.docx";
        String outpath = "F:\\Test.docx";

        XWPFDocument doc = new XWPFDocument(new FileInputStream(filepath));
        for (XWPFParagraph p : doc.getParagraphs()){

            int numberOfRuns = p.getRuns().size();

            // Collate text of all runs
            StringBuilder sb = new StringBuilder();
            for (XWPFRun r : p.getRuns()){
                int pos = r.getTextPosition();
                if(r.getText(pos) != null) {
                    sb.append(r.getText(pos));
                }
            }

            // Continue if there is text and contains "test"
            if(sb.length() > 0 && sb.toString().contains("test")) {
                // Remove all existing runs
                for(int i = 0; i < numberOfRuns; i++) {
                    p.removeRun(i);
                }
                String text = sb.toString().replace("test", "DOG");
                // Add new run with updated text
                XWPFRun run = p.createRun();
                run.setText(text);
                p.addRun(run);
            }
        }
       doc.write(new FileOutputStream(outpath));
    }
}