生成并压缩多个word文件，写入response

    @ApiOperation("批量导出商户档案")
    @PostMapping(value = "/exportWord")
    public void exportWordMerchantProfiles(@RequestBody ExportForm form, HttpServletResponse response) throws IOException, URISyntaxException {
        List<Map<String, Object>> maps = new ArrayList<>();
        List<String> filenames = new ArrayList<>();
        for (String id : form.getIds()) {
            PlaceInfo placeInfo = PlaceInfoService.selectPlaceInfoById(id);
            if (placeInfo == null) continue;
            Map<String, Object> map = placeInfo.convert();
            String filename = map.get("unit_name") + "-商户档案.docx";
            
            maps.add(map);
            filenames.add(filename);
        }
        // 导出
        WordUtils.writeMultipleToResponse(templateFile, maps, filenames, response);
    }

package com.yitu.common.utils.poi;

import com.deepoove.poi.XWPFTemplate;
import org.springframework.http.MediaType;

import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.net.URISyntaxException;
import java.net.URLEncoder;
import java.nio.charset.StandardCharsets;
import java.util.List;
import java.util.Map;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

/**
 * @author wzy [email protected]
 * @date 2024-01-05 11:58
 */
public class WordUtils {
    /**
     * 生成单个word并写入response
     *
     * @param path     模板文件的绝对路径
     * @param map      模板数据
     * @param filename 输出文件名
     * @param response resp
     * @throws URISyntaxException
     * @throws IOException
     */
    public static void writeToResponse(String path, Map<String, Object> map, String filename, HttpServletResponse response) throws URISyntaxException, IOException {
        ServletOutputStream outputStream = getServletOutputStream(filename, response);
        
        XWPFTemplate template = XWPFTemplate.compile(path).render(map);
        
        template.write(outputStream);
        template.close();
        
        outputStream.flush();
    }
    
    /**
     * 生成并压缩多个word文件，写入response
     *
     * @param path      模板文件的绝对路径
     * @param mapList   每个模板对应的数据列表
     * @param filenames 输出文件名列表
     * @param response  resp
     * @throws IOException
     */
    public static void writeMultipleToResponse(String path, List<Map<String, Object>> mapList, List<String> filenames, HttpServletResponse response) throws IOException {
        ServletOutputStream outputStream = getServletOutputStream("商户档案.zip", response);
        
        try (ZipOutputStream zipOut = new ZipOutputStream(outputStream)) {
            for (int i = 0; i < mapList.size(); i++) {
                Map<String, Object> map = mapList.get(i);
                String filename = filenames.get(i);
                
                addToZip(zipOut, path, map, filename);
            }
        }
        
        outputStream.flush();
    }
    
    private static void addToZip(ZipOutputStream zipOut, String path, Map<String, Object> map, String filename) throws IOException {
        try (XWPFTemplate template = XWPFTemplate.compile(path).render(map)) {
            ZipEntry zipEntry = new ZipEntry(filename);
            zipOut.putNextEntry(zipEntry);
            
            template.write(zipOut);
            zipOut.closeEntry();
        }
    }
    
    private static ServletOutputStream getServletOutputStream(String filename, HttpServletResponse response) throws IOException {
        response.setContentType(MediaType.APPLICATION_OCTET_STREAM_VALUE);
        response.setHeader("Content-Disposition", "attachment; filename=\"" + URLEncoder.encode(filename, StandardCharsets.UTF_8.toString()) + "\"");
        return response.getOutputStream();
    }
    
    
}