spring boot集成easypoi导出word换行处理

项目场景：

spring boot集成easypoi导出word

<dependency><groupId>cn.afterturn</groupId><artifactId>easypoi-spring-boot-starter</artifactId><version>4.4.0</version>
</dependency>

问题描述

spring boot集成easypoi导出word时，内容包含换行符\n，导出word时换行符失效，会将换行符\n识别为空格。

解决方案：

第一种：生成段落的方式

示例代码：

import com.xinghuo.common.base.ActionResult;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.Cleanup;
import org.apache.poi.xwpf.usermodel.XWPFDocument;
import org.apache.poi.xwpf.usermodel.XWPFParagraph;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;import java.io.File;
import java.io.FileOutputStream;@RestController
@Api(tags = "测试")
@RequestMapping("/test")
public class TestController {@ApiOperation("导出Word")@GetMapping("/export")public ActionResult export() {exportWord();return ActionResult.success();}/*** 导出Word，支持换行*/public void exportWord(){try{String content = "第一行\n第二行中文\n"+"第三行";@Cleanup XWPFDocument doc = new XWPFDocument();if(content != null && content.contains("\n")) {//设置换行String[] text = content.split("\n");for (int i = 0; i < text.length; i++) {XWPFParagraph p = doc.createParagraph();p.createRun().setText(text[i]);}}else{XWPFParagraph p = doc.createParagraph();p.createRun().setText(content);}String name = "测试换行内容.docx";String filePath = "F:"+ File.separator + name;@Cleanup FileOutputStream output = new FileOutputStream(filePath);doc.write(output);} catch (Exception e) {e.printStackTrace();}}
}

导出的word内容

第二种：替换模板的情况，换行符替换成回车

示例代码：

import cn.afterturn.easypoi.word.WordExportUtil;
import com.xinghuo.common.base.ActionResult;
import com.xinghuo.common.util.XSSEscape;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.Cleanup;
import org.apache.poi.xwpf.usermodel.XWPFDocument;
import org.apache.poi.xwpf.usermodel.XWPFParagraph;
import org.apache.poi.xwpf.usermodel.XWPFRun;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;import java.io.File;
import java.io.FileOutputStream;
import java.util.HashMap;
import java.util.List;
import java.util.Map;@RestController
@Api(tags = "测试")
@RequestMapping("/test")
public class Test1Controller {@ApiOperation("导出Word")@GetMapping("/export")public ActionResult export() {exportWordTemplate();return ActionResult.success();}/*** 导出Word替换模板，支持换行*/public void exportWordTemplate(){try{String content = "第一行\n第二行中文\n"+"第三行";Map<String, Object> map = new HashMap<>();map.put("content",content);@Cleanup XWPFDocument doc = WordExportUtil.exportWord07("F:/export_template.docx", map);//文本换行addBreakInCell(doc.getParagraphs());String name = "测试换行内容-替换模板.docx";String filePath = "F:"+ File.separator + name;@Cleanup FileOutputStream output = new FileOutputStream(XSSEscape.escapePath(filePath));doc.write(output);} catch (Exception e) {e.printStackTrace();}}/*** 文本换行*/public static void addBreakInCell(List<XWPFParagraph> paragraphs) {for (XWPFParagraph p : paragraphs) {for (XWPFRun run : p.getRuns()) {//XWPFRun对象定义具有一组公共属性的文本区域if(run.getText(0)!= null && run.getText(0).contains("\n")) {String[] lines = run.getText(0).split("\n");if(lines.length > 0) {run.setText(lines[0], 0); // set first line into XWPFRunfor(int i=1;i<lines.length;i++){// add break and insert new textrun.addBreak();//中断
//                              run.addCarriageReturn();//回车符，但是不起作用run.setText(lines[i]);}}}}}}
}

其中export_template.docx文件是word模板，内容为：