java html转word的坑 poi样式丢失还乱码

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我是靠谱客的博主不安电灯胆，这篇文章主要介绍java html转word的坑 poi样式丢失还乱码，现在分享给大家，希望可以做个参考。

项目需要将富文本内容导出word，
最开始百度，找到poi导出，综合之后就有了以下代码

复制代码

public void exportWord(Integer id,HttpServletResponse response) throws Exception {
        ByteArrayInputStream bais = null;
        OutputStream ostream = response.getOutputStream();
        try {
            TBrCaseDoc doc = tBrCaseDocMapper.selectByPrimaryKey(id);
            String content = "<html><body>"+doc.getContent()+"</body></html>";
            bais = new ByteArrayInputStream(content.getBytes("utf-8"));
            //生成word
            POIFSFileSystem poifs = new POIFSFileSystem();
            DirectoryEntry directory = poifs.getRoot();
            directory.createDocument("exportWord", bais);
            //输出文件
            response.setCharacterEncoding("utf-8");
            //设置word格式
			String title = new String((doc.getTitle()+".docx").getBytes("utf-8"),"ISO8859-1");//解决标题中文变成下划线的问题
            response.setContentType("application/msword");
            response.setHeader("Content-disposition", "attachment;filename="+title);
            poifs.writeFilesystem(ostream);
        }catch(Exception e){
            //异常处理
            e.printStackTrace();
        }finally {
            if(bais!=null){
                bais.close();
            }
            if(ostream!=null){
                ostream.close();
            }
        }

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public void exportWord(Integer id,HttpServletResponse response) throws Exception {
        ByteArrayInputStream bais = null;
        OutputStream ostream = response.getOutputStream();
        try {
            TBrCaseDoc doc = tBrCaseDocMapper.selectByPrimaryKey(id);
            String content = "<html><body>"+doc.getContent()+"</body></html>";
            bais = new ByteArrayInputStream(content.getBytes("utf-8"));
            //生成word
            POIFSFileSystem poifs = new POIFSFileSystem();
            DirectoryEntry directory = poifs.getRoot();
            directory.createDocument("exportWord", bais);
            //输出文件
            response.setCharacterEncoding("utf-8");
            //设置word格式
			String title = new String((doc.getTitle()+".docx").getBytes("utf-8"),"ISO8859-1");//解决标题中文变成下划线的问题
            response.setContentType("application/msword");
            response.setHeader("Content-disposition", "attachment;filename="+title);
            poifs.writeFilesystem(ostream);
        }catch(Exception e){
            //异常处理
            e.printStackTrace();
        }finally {
            if(bais!=null){
                bais.close();
            }
            if(ostream!=null){
                ostream.close();
            }
        }

初次测试成功之后就没管了，
在这里插入图片描述

后来正式和前端对接测试的时候发现，带有样式的导出有问题。

前端编辑是这样的
在这里插入图片描述
导出变成这样

无奈继续百度，都没有找到解决方案，但是偶然看到一个
“直接html文件把后缀改成doc”
于是试了一下，还成功了

效果还行
只是视图模式默认是web，貌似还差点，于是继续百度word默认打开模式
感谢这位老铁的解决方案
https://blog.csdn.net/yiyelanxin/article/details/78466872
于是修改代码为

复制代码

String wordHtmlHead = "<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office"n" +
            "xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml"n" +
            "xmlns="http://www.w3.org/TR/REC-html40"><head>n" +
            "    n" +
            "</head>";

@ResponseBody
    @RequestMapping("/word")
    public void exportWord(Integer id,HttpServletResponse response) throws Exception {
        OutputStream ostream = response.getOutputStream();
        try {
            TBrCaseDoc doc = tBrCaseDocMapper.selectByPrimaryKey(id);
            String content = wordHtmlHead+"<body>"+doc.getContent()+"</body></html>";

response.setCharacterEncoding("utf-8");
            response.setContentType("application/msword");
            response.setHeader("Content-disposition", "attachment;filename="+new String((doc.getTitle()+".docx").getBytes("utf-8"),"ISO8859-1"));
            ostream.write(content.getBytes("utf-8"));
            ostream.flush();
        }catch(Exception e){
            //异常处理
            e.printStackTrace();
        }finally {
            if(ostream!=null){
                ostream.close();
            }
        }
    }

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    String wordHtmlHead = "<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office"n" +
            "xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml"n" +
            "xmlns="http://www.w3.org/TR/REC-html40"><head>n" +
            "    <!--[if gte mso 9]><xml><w:WordDocument><w:View>Print</w:View><w:TrackMoves>false</w:TrackMoves><w:TrackFormatting/><w:ValidateAgainstSchemas/><w:SaveIfXMLInvalid>false</w:SaveIfXMLInvalid><w:IgnoreMixedContent>false</w:IgnoreMixedContent><w:AlwaysShowPlaceholderText>false</w:AlwaysShowPlaceholderText><w:DoNotPromoteQF/><w:LidThemeOther>EN-US</w:LidThemeOther><w:LidThemeAsian>ZH-CN</w:LidThemeAsian><w:LidThemeComplexScript>X-NONE</w:LidThemeComplexScript><w:Compatibility><w:BreakWrappedTables/><w:SnapToGridInCell/><w:WrapTextWithPunct/><w:UseAsianBreakRules/><w:DontGrowAutofit/><w:SplitPgBreakAndParaMark/><w:DontVertAlignCellWithSp/><w:DontBreakConstrainedForcedTables/><w:DontVertAlignInTxbx/><w:Word11KerningPairs/><w:CachedColBalance/><w:UseFELayout/></w:Compatibility><w:BrowserLevel>MicrosoftInternetExplorer4</w:BrowserLevel><m:mathPr><m:mathFont m:val="Cambria Math"/><m:brkBin m:val="before"/><m:brkBinSub m:val="--"/><m:smallFrac m:val="off"/><m:dispDef/><m:lMargin m:val="0"/> <m:rMargin m:val="0"/><m:defJc m:val="centerGroup"/><m:wrapIndent m:val="1440"/><m:intLim m:val="subSup"/><m:naryLim m:val="undOvr"/></m:mathPr></w:WordDocument></xml><![endif]-->n" +
            "</head>";

    @ResponseBody
    @RequestMapping("/word")
    public void exportWord(Integer id,HttpServletResponse response) throws Exception {
        OutputStream ostream = response.getOutputStream();
        try {
            TBrCaseDoc doc = tBrCaseDocMapper.selectByPrimaryKey(id);
            String content = wordHtmlHead+"<body>"+doc.getContent()+"</body></html>";

            response.setCharacterEncoding("utf-8");
            response.setContentType("application/msword");
            response.setHeader("Content-disposition", "attachment;filename="+new String((doc.getTitle()+".docx").getBytes("utf-8"),"ISO8859-1"));
            ostream.write(content.getBytes("utf-8"));
            ostream.flush();
        }catch(Exception e){
            //异常处理
            e.printStackTrace();
        }finally {
            if(ostream!=null){
                ostream.close();
            }
        }
    }