我使用的是Springboot框架开发的。首先需要在pom.xml文件中引入以下maven包：

org.apache.poi

poi

3.10-FINAL

org.apache.poi

poi-ooxml

3.8

然后编写一个word工具类，使用时直接调用即可。

package com.label.tool;

import org.apache.poi.xwpf.usermodel.ParagraphAlignment;

import org.apache.poi.xwpf.usermodel.XWPFDocument;

import org.apache.poi.xwpf.usermodel.XWPFParagraph;

import org.apache.poi.xwpf.usermodel.XWPFRun;

import javax.servlet.http.HttpServletResponse;

import java.io.OutputStream;

import java.net.URLEncoder;

import java.text.NumberFormat;

import java.util.Map;

public class WordTool {

/**

*

* @param response

* @throws Exception

*/

public static void downloadBigActivity(HttpServletResponse response) throws Exception {

XWPFDocument doc = new XWPFDocument();// 创建Word文件

XWPFParagraph p = doc.createParagraph();// 新建段落

p.setAlignment(ParagraphAlignment.CENTER);// 设置段落的对齐方式

XWPFRun r = p.createRun();//创建标题

r.setText("2020年元日大型活动情况分析");

r.setBold(true);//设置为粗体

r.setColor("000000");//设置颜色

r.setFontSize(21); //设置字体大小

r.addCarriageReturn();//回车换行

XWPFParagraph p1 = doc.createParagraph();

p1.setAlignment(ParagraphAlignment.BOTH);

XWPFRun c1 = p1.createRun();

c1.setText("一、12月31日晚上各地将举行各类活动");

c1.setColor("000000");

c1.setFontSize(12);

c1.addCarriageReturn();

String fileNameURL = URLEncoder.encode("myWord.doc", "UTF-8");

response.setCharacterEncoding("UTF-8");

//response.setHeader("Content-disposition", "attachment;filename=" + fileName);

response.setHeader("Content-disposition", "attachment;filename=" + fileNameURL + ";" + "filename*=utf-8''" + fileNameURL);

response.setContentType("application/octet-stream");

//刷新缓冲

response.flushBuffer();

OutputStream ouputStream = response.getOutputStream();

//workbook将Excel写入到response的输出流中，供页面下载该Excel文件

doc.write(ouputStream);

ouputStream.flush();

ouputStream.close();

}

}