java实现freemarker导出word

private static final String templateFolder = AqmisFileUtil.class.getClassLoader().getResource("../../").getPath()+"/WEB-INF/classes/template/";  
    
    public static void createDoc(HttpServletRequest request, HttpServletResponse response,String templatUrl,String templatName,Map root){
        
        //获取ftl模板的路径
        String substring = templateFolder.substring(1);
        //Configuration用于读取ftl文件  
        Configuration configuration = new Configuration();  
        configuration.setDefaultEncoding("utf-8");  
        try {
            //读取模板
            configuration.setDirectoryForTemplateLoading(new File(substring));
            Template t = configuration.getTemplate(templatUrl);  
            
            //导出临时文件的名称路径
             String name =  templatName +".doc";  
             String outFile ="D:/"+name;
            
             // 这个地方不能使用FileWriter因为需要指定编码类型否则生成的Word文档会因为有无法识别的编码而无法打开  
             BufferedWriter  out = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(outFile),"utf-8"));      
             try {
                 //执行生产临时文件
                t.process(root, out);
            } catch (TemplateException e1) {
                e1.printStackTrace();
            }
             
             out.flush();  
             out.close();   
             
             
             InputStream fis = null;  
             OutputStream toClient = null;  
             try {  
                 //读取临时文件
                 fis = new BufferedInputStream(new FileInputStream(outFile));  
                 byte[] buffer = new byte[fis.available()];  
                 fis.read(buffer);  
                 fis.close();  
                 // 清空response  
                 response.reset();  
                 // 设置response的Header  
                 String fileName = StringUtil.encodingString(name, "GB2312", "ISO-8859-1");       //这里要用URLEncoder转下才能正确显示中文名称  
                 response.addHeader("Content-Disposition", "attachment;filename=" + fileName);  
                 response.addHeader("Content-Length", "" + buffer.length);  
                 toClient = new BufferedOutputStream(response.getOutputStream());  
                 response.setContentType("application/octet-stream");  
                 toClient.write(buffer);  
                 toClient.flush();  
                 
                 //删除临时文件
                 File tempFile =new File(outFile);
                 if(tempFile.exists()){
                     tempFile.delete();
                 }
                
             } catch (Exception e) {  
                 e.printStackTrace();  
             } finally{  
                 try {  
                     if(fis!=null){  
                         fis.close();  
                     }  
                 } catch (IOException e) {  
                     e.printStackTrace();  
                 }  
                 try {  
                     if(toClient!=null){  
                         toClient.close();  
                     }  
                 } catch (Exception e) {  
                     e.printStackTrace();  
                 }  
             }  
             
             
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }  
    }