POI XWPFDocument 实现word中内容换行

 这里是示例代码中，“\ n”的不是这个方法的setText工作？XWPFRun.setText（）似乎不遵守换行符或制表符？http://cn.voidcc.com/question/p-gcptddrd-zg.html

XWPFDocument document = new XWPFDocument(); 
XWPFParagraph tp = document.createParagraph(); 
XWPFRun tRun = tp.createRun(); 
tRun.setText("a"); 
tRun.setText("\n"); // not work 
tRun.setText("b"); 
 
FileOutputStream outStream = null; 
try { 
    outStream = new FileOutputStream("testTabWithPOI.doc"); 
    document.write(outStream); 
    outStream.close(); 
} catch (FileNotFoundException e) { 
    e.printStackTrace(); 
} catch (IOException e) { 
    e.printStackTrace(); 
} 

这不是你如何添加选项卡或换行到一个运行。 Microsoft Words生成文件的方式是添加特殊的中断样式元素，因此这也是您需要在Apache POI中执行的操作，因为这是格式的工作方式。testAddTabsAndLineBreaks() of TestXWPFRunhttp://svn.apache.org/repos/asf/poi/trunk/src/ooxml/testcases/org/apache/poi/xwpf/usermodel/TestXWPFRun.java您可以在中看到添加标签的示例。你的代码需要：

XWPFRun tRun = tp.createRun(); 
tRun.setText("a"); 
tRun.addTab(); 
tRun.setText("b"); 

例子：如下图生成的word文档的格式需要实现换行的效果。

 //判断文本是否需要进行替换
                if (checkText(text)) {
                    for (Map.Entry entry : textMap.entrySet()) {
                        //匹配模板与替换值 格式${key}
                        String key = "${" + entry.getKey() + "}";
//                        String key =entry.getKey() ;
                        Object value = entry.getValue();
                        if (text.contains(key)) {
                            if (value instanceof String) { //文字替换
                                if (value != null && value.toString().contains("\n")) {
                                    String[] lines = value.toString().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]);
                                        }
                                    }
                                } else {
                                    text = text.replace(key, (String) value);
                                }
                            } else if (value instanceof Map) { //图片替换
                                text = text.replace(key, "");
                                Map picMap = (Map) value;
                                int width = Integer.parseInt(picMap.get("width").toString());
                                int height = Integer.parseInt(picMap.get("height").toString());
                                int picType = getPictureType(picMap.get("type").toString());
                                FileInputStream fis = (FileInputStream) picMap.get("content");
                                try {
                                    paragraph.setAlignment(ParagraphAlignment.CENTER);//样式居中
                                    String blipId = document.addPictureData(fis, picType);
                                    int id = document.getNextPicNameNumber(picType);
                                    XWPFUtils.createPicture(id, blipId, width, height, run);
                                } catch (Exception e) {
                                    e.printStackTrace();
                                }
                            } else if (value instanceof List) {
                                text = text.replace(key, "");
                                List> tableData = (List>) value;
                                XmlCursor cursor = paragraph.getCTP().newCursor();
 
                                XWPFTable tableOne = document.insertNewTbl(cursor);// ---这个是关键
                                //表格生成 6行5列.
                                int rows = tableData.size();
                                int cols = tableData.get(0).size();
                                XWPFHelperTable xwpfHelperTable = new XWPFHelperTable();
 
                                xwpfHelperTable.setTableWidthAndHAlign(tableOne, "9000", STJc.CENTER);
//                            xwpfHelperTable.setTableHeight(tableOne, 560, STVerticalJc.CENTER);
 
                                //表格创建
                                XWPFTableRow tableRowTitle = tableOne.getRow(0);
 
                                for (int i = 0; i < tableData.get(0).size(); i++) {
                                    XWPFParagraph cellParagraph;
                                    if (i == 0) {
//                                    tableRowTitle.getCell(0).setText(tableData.get(0).get(i).toString());
                                        cellParagraph = tableRowTitle.getCell(0).addParagraph();
 
                                    } else {
//                                    tableRowTitle.addNewTableCell().setText(tableData.get(0).get(i).toString());
                                        cellParagraph = tableRowTitle.addNewTableCell().addParagraph();
 
                                    }
                                    XWPFRun cellParagraphRun = cellParagraph.createRun();
                                    cellParagraph.setAlignment(ParagraphAlignment.CENTER);//样式居中
                                    cellParagraphRun.setFontSize(15);    //字体大小
                                    cellParagraphRun.setFontFamily("仿宋");//设置字体
                                    cellParagraphRun.setText(changeText(tableData.get(0).get(i)));
                                }
                                for (int i = 1; i < rows; i++) {
                                    XWPFTableRow createRow = tableOne.createRow();
                                    for (int j = 0; j < cols; j++) {
//                                    createRow.getCell(j).setText(changeText(tableData.get(i).get(j)));
                                        XWPFParagraph cellParagraph = createRow.getCell(j).addParagraph();
                                        XWPFRun cellParagraphRun = cellParagraph.createRun();
                                        cellParagraph.setAlignment(ParagraphAlignment.CENTER);//样式居中
                                        cellParagraphRun.setFontSize(15);    //字体大小
                                        cellParagraphRun.setFontFamily("仿宋");//设置字体
                                        cellParagraphRun.setText(changeText(tableData.get(i).get(j)));
                                    }
                                }
 
                            }
                        }
                    }
                    //替换模板原来位置
                    run.setText(text, 0);
                }

 增加了截图代码后，生成的模板word文档出现了换行效果。