引入jar包

<dependency>
    <groupId>org.apache.poi</groupId>
    <artifactId>poi</artifactId>
    <version>3.17</version>
</dependency>

<dependency>
    <groupId>org.apache.poi</groupId>
    <artifactId>poi-ooxml</artifactId>
    <version>3.17</version>
</dependency>

<dependency>
    <groupId>org.apache.poi</groupId>
    <artifactId>poi-ooxml-schemas</artifactId>
    <version>3.17</version>
</dependency>
<dependency>
    <groupId>org.apache.poi</groupId>
    <artifactId>poi-scratchpad</artifactId>
    <version>3.16</version>
</dependency>

代码

package com.jkhh.provider.study.test;

import org.apache.poi.hwpf.HWPFDocument;
import org.apache.poi.hwpf.usermodel.Range;

import java.io.*;
import java.util.HashMap;
import java.util.Map;

/**
 * @author fj
 * @version 1.0
 * @date 2020/10/12 16:48
 */
public class DocTest {
    public static void CreatWordByModel(String  tmpFile, Map<String, String> contentMap, String exportFile) throws Exception{

        InputStream in = null;
        in = new FileInputStream(new File(tmpFile));

        HWPFDocument document = null;
        document = new HWPFDocument(in);
        // 读取文本内容
        Range bodyRange = document.getRange();
        System.out.println(bodyRange.toString());
        System.out.println(bodyRange.text());
        // 替换内容
        for (Map.Entry<String, String> entry : contentMap.entrySet()) {
            bodyRange.replaceText("${" + entry.getKey() + "}", entry.getValue());
        }

        //导出到文件
        try {
            ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
            document.write((OutputStream)byteArrayOutputStream);
            OutputStream outputStream = new FileOutputStream(exportFile);
            outputStream.write(byteArrayOutputStream.toByteArray());
            outputStream.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public static void main(String[] args) throws Exception {
        Map map=new HashMap();
        map.put("com","xxx公司");
        map.put("date","2020/10/12");
        map.put("content","这是一个测试");
        map.put("data4","CSDN");
        map.put("data5","555");
        CreatWordByModel("D://test/test.doc",map,"D://test/newfile.doc");
    }
}