Question

我正在使用apache poi 3.8将值写入单词模板。我用单词文件（键）中的特定字符串替换所需的值，例如word文档有一个包含键％Entry1％的段落，我想用“Entry text line1 \ nnew line”替换它。所有替换的键和值都存储在我实现的Map中。

Map<String, String> replacedElementsMap;

HWPFDocument的代码是：

Range range = document.getRange();
for(Map.Entry<String, String> entry : replacedElementsMap.entrySet()) {
            range.replaceText(entry.getKey(), entry.getValue());
}

这段代码工作正常，我只需将\ n放在换行符的输入字符串中。但是我找不到XWPFDocument的类似方法。我目前的XWPFDocument代码是：

List<XWPFParagraph> xwpfParagraphs = document.getParagraphs();
for(XWPFParagraph xwpfParagraph : xwpfParagraphs) {
            List<XWPFRun> xwpfRuns = xwpfParagraph.getRuns();
            for(XWPFRun xwpfRun : xwpfRuns) {
                String xwpfRunText = xwpfRun.getText(xwpfRun.getTextPosition());
                for(Map.Entry<String, String> entry : replacedElementsMap.entrySet()) {
                    if (xwpfRunText != null && xwpfRunText.contains(entry.getKey())) {
                        xwpfRunText = xwpfRunText.replaceAll(entry.getKey(), entry.getValue());
                    }
                }
                xwpfRun.setText(xwpfRunText, 0);
            }
        }

现在“\ n”-string不会导致回车，如果我使用xwpfRun.addCarriageReturn();，我只会在段落后面换行。我应该如何正确地在xwpf中创建新行？

Answer 1

我有另一个解决方案，它更容易：

            if (data.contains("\n")) {
                String[] lines = data.split("\n");
                run.setText(lines[0], 0); // set first line into XWPFRun
                for(int i=1;i<lines.length;i++){
                    // add break and insert new text
                    run.addBreak();
                    run.setText(lines[i]);
                }
            } else {
                run.setText(data, 0);
            }

Answer 2

毕竟，我必须手动创建段落。基本上，我将替换字符串拆分为数组，并为每个数组元素创建一个新段落。这是代码：

protected void replaceElementInParagraphs(List<XWPFParagraph> xwpfParagraphs,
                                              Map<String, String> replacedMap) {
        if (!searchInParagraphs(xwpfParagraphs, replacedMap)) {
            replaceElementInParagraphs(xwpfParagraphs, replacedMap);
        }
    }

 private boolean searchInParagraphs(List<XWPFParagraph> xwpfParagraphs, Map<String, String> replacedMap) {
        for(XWPFParagraph xwpfParagraph : xwpfParagraphs) {
            List<XWPFRun> xwpfRuns = xwpfParagraph.getRuns();
            for(XWPFRun xwpfRun : xwpfRuns) {
                String xwpfRunText = xwpfRun.getText(xwpfRun.getTextPosition());
                for(Map.Entry<String, String> entry : replacedMap.entrySet()) {
                    if (xwpfRunText != null && xwpfRunText.contains(entry.getKey())) {
                        if (entry.getValue().contains("\n")) {
                            String[] paragraphs = entry.getValue().split("\n");
                            entry.setValue("");
                            createParagraphs(xwpfParagraph, paragraphs);
                            return false;
                        }
                        xwpfRunText = xwpfRunText.replaceAll(entry.getKey(), entry.getValue());
                    }
                }
                xwpfRun.setText(xwpfRunText, 0);
            }
        }
        return true;
    }

 private void createParagraphs(XWPFParagraph xwpfParagraph, String[] paragraphs) {
        if(xwpfParagraph!=null){
            for (int i = 0; i < paragraphs.length; i++) {
                XmlCursor cursor = xwpfParagraph.getCTP().newCursor();
                XWPFParagraph newParagraph = document.insertNewParagraph(cursor);
                newParagraph.setAlignment(xwpfParagraph.getAlignment());
                newParagraph.getCTP().insertNewR(0).insertNewT(0).setStringValue(paragraphs[i]);
                newParagraph.setNumID(xwpfParagraph.getNumID());
            }
            document.removeBodyElement(document.getPosOfParagraph(xwpfParagraph));
        }
    }

在XWPFDocument的段落中插入换行符

2 个答案: