java 将html转为word导出 （富文本内容导出word）

业务：

将富文本内容取出生成本地word文件

参考百度的方法

word本身是可以识别html标签，所以通过poi写入html内容即可

import com.util.WordUtil;
import org.springframework.web.bind.annotation.PostMapping;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class SysAnnouncementController {

    @PostMapping(value = "/exportAccidentExampleWord")
    public void exportAccidentExampleWord(HttpServletRequest request, HttpServletResponse response) throws Exception {
        String s = "
第一行要加粗
\n" +
                "
第二行要倾斜
\n" +
                "
第三行要居中
";
        StringBuffer sbf = new StringBuffer();
        sbf.append("                "xmlns:v=\"urn:schemas-microsoft-com:vml\" xmlns:o=\"urn:schemas-microsoft-com:office:office\" xmlns:w=\"urn:schemas-microsoft-com:office:word\" xmlns:m=\"http://schemas.microsoft.com/office/2004/12/omml\" xmlns=\"http://www.w3.org/TR/REC-html40\"" + //将版式从web版式改成页面试图
                ">");//缺失的首标签
        sbf.append("" +
                "" +
                "");//将版式从web版式改成页面试图
        sbf.append("");//缺失的首标签
        sbf.append(s);//富文本内容
        sbf.append("");//缺失的尾标签

        try{
            WordUtil.exportWord(request,response,sbf.toString(),"wordName");
        }catch (Exception e){
            System.out.println(e.getMessage());
        }
    }
}

工具类

import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.ByteArrayInputStream;
import java.io.OutputStream;

public class WordUtil {
    public static void exportWord(HttpServletRequest request, HttpServletResponse response, String content, String fileName) throws Exception {

        byte[] b = content.getBytes("GBK"); //这里是必须要设置编码的，不然导出中文就会乱码。
        ByteArrayInputStream bais = new ByteArrayInputStream(b);//将字节数组包装到流中
        POIFSFileSystem poifs = new POIFSFileSystem();
        DirectoryEntry directory = poifs.getRoot();
        DocumentEntry documentEntry = directory.createDocument("WordDocument", bais); //该步骤不可省略，否则会出现乱码。
        //输出文件
        request.setCharacterEncoding("utf-8");
        response.setContentType("application/msword");//导出word格式
        response.addHeader("Content-Disposition", "attachment;filename=" +
                new String(fileName.getBytes("GB2312"),"iso8859-1") + ".doc");
        ServletOutputStream ostream = response.getOutputStream();
        poifs.writeFilesystem(ostream);
        bais.close();
        ostream.close();
        poifs.close();
    }

    public static void downloadWord( byte[] b, OutputStream out)
            throws Exception {
        ByteArrayInputStream bais = new ByteArrayInputStream(b);//将字节数组包装到流中
        try {

            POIFSFileSystem poifs = new POIFSFileSystem();
            DirectoryEntry directory = poifs.getRoot();
            DocumentEntry documentEntry = directory.createDocument("WordDocument", bais);
            poifs.writeFilesystem(out);
            bais.close();
            out.close();
        }catch(Exception e){
            e.printStackTrace();
        }finally {
            if(bais!=null){bais.close();}
            if(out!=null) {out.flush();out.close();}
        }
    }
}