java - Apache POI - 如何将表格从一个 docx 复制到另一个 docx

Question

您好，我正在尝试将一个表格从一个 docx 文件复制到另一个文件，但发生的情况是该表格的值被复制到新文档中的表格下方及其外部(参见下面的图片)

原始 docx 中的表格

新 docx 中的表格

如您所见，表格的值被复制到表格之外。我使用的是 Libre Office，apache poi 版本 3.17，我的电脑运行的是 Ubuntu 16.04

我用来执行复制的代码如下

public static void copyTable(XWPFDocument input_doc,XWPFDocument output_doc,
                             int table_index_input, int table_index_output) {

    XWPFTable template_table = input_doc.getTables().get(table_index_input);

    CTTbl ctTbl = CTTbl.Factory.newInstance(); // Create a new CTTbl for the new table
    ctTbl.set(template_table.getCTTbl()); // Copy the template table's CTTbl
    XWPFTable new_table = new XWPFTable(ctTbl, output_doc); // Create a new table using the CTTbl upon

    output_doc.createParagraph();
    output_doc.createTable();// Create a empty table in the document
    output_doc.setTable(table_index_output, new_table);  // Replace the empty table to table2

}

Answer 1

XWPFTable newTbl = output_doc.insertNewTbl(cursor);
copyTable(table, newTbl);

和 copyTable() 方法

private void copyTable(XWPFTable source, XWPFTable target) {
    target.getCTTbl().setTblPr(source.getCTTbl().getTblPr());
    target.getCTTbl().setTblGrid(source.getCTTbl().getTblGrid());
    for (int r = 0; r<source.getRows().size(); r++) {
        XWPFTableRow targetRow = target.createRow();
        XWPFTableRow row = source.getRows().get(r);
        targetRow.getCtRow().setTrPr(row.getCtRow().getTrPr());
        for (int c=0; c<row.getTableCells().size(); c++) {
            //newly created row has 1 cell
            XWPFTableCell targetCell = c==0 ? targetRow.getTableCells().get(0) : targetRow.createCell();
            XWPFTableCell cell = row.getTableCells().get(c);
            targetCell.getCTTc().setTcPr(cell.getCTTc().getTcPr());
            XmlCursor cursor = targetCell.getParagraphArray(0).getCTP().newCursor();
            for (int p = 0; p < cell.getBodyElements().size(); p++) {
                IBodyElement elem = cell.getBodyElements().get(p);
                if (elem instanceof XWPFParagraph) {
                    XWPFParagraph targetPar = targetCell.insertNewParagraph(cursor);
                    cursor.toNextToken();
                    XWPFParagraph par = (XWPFParagraph) elem;
                    copyParagraph(par, targetPar);
                } else if (elem instanceof XWPFTable) {
                    XWPFTable targetTable = targetCell.insertNewTbl(cursor);
                    XWPFTable table = (XWPFTable) elem;
                    copyTable(table, targetTable);
                    cursor.toNextToken();
                }
            }
            //newly created cell has one default paragraph we need to remove
            targetCell.removeParagraph(targetCell.getParagraphs().size()-1);
        }
    }
    //newly created table has one row by default. we need to remove the default row.
    target.removeRow(0);
}

copyParagraph()

private void copyParagraph(XWPFParagraph source, XWPFParagraph target) {
    target.getCTP().setPPr(source.getCTP().getPPr());
    for (int i=0; i<source.getRuns().size(); i++ ) {
        XWPFRun run = source.getRuns().get(i);
        XWPFRun targetRun = target.createRun();
        //copy formatting
        targetRun.getCTR().setRPr(run.getCTR().getRPr());
        //no images just copy text
        targetRun.setText(run.getText(0));
    }
}