POI 匹配单元格内容\n 替换为换行

根据 \n 进行分割，取第一个 run，并将分割后的元素作为其他 run拼起来

run.addBreak();  // 换行

    /**
     * 匹配单元格内容\n 替换为换行
     * @param cell
     */
    private  void addBreakInCell(XWPFTableCell cell) {
        if(cell.getText() != null && cell.getText().contains("\n")) {
            for (XWPFParagraph paragraph : cell.getParagraphs()) {
                for (XWPFRun run : paragraph.getRuns()) {
                    if(run.getText(0)!= null && run.getText(0).contains("\n")) {
                        String[] lines = run.getText(0).split("\n");
                        if(lines.length > 0) {
                            // set first line into XWPFRun
                            run.setText(lines[0], 0);
                            for(int i=1;i<lines.length;i++){
                                // add break and insert new text
                                run.addBreak();
                                run.setText(lines[i]);
                            }
                        }
                    }
                }
            }
        }
    }