java 文件下载支持中文名称的实例

/**

    * 文件下载

    * @param filePath 文件路径

    * @param fileName  文件名称

    */

   public void download(String filePath,String fileName){

     try {

　　　　　　　//支持中文

       fileName = URLEncoder.encode(fileName,"UTF-8");

       HttpServletResponse response = ServletActionContext.getResponse();

       HttpServletRequest request = ServletActionContext.getRequest();

       response.reset();

       response.setContentType(request.getServletContext().getMimeType(fileName));

       response.setHeader("Content-Disposition", "attachment;filename="+fileName);

       InputStream in = new FileInputStream(filePath);

       OutputStream out = response.getOutputStream();

       byte[] b = new byte[1024];

       int length = 0;

       while((length = in.read(b)) != -1) {

         out.write(b,0,length);

       }

       in.close();

       out.close();

     } catch (FileNotFoundException e) {

       e.printStackTrace();

     } catch (IOException e) {

       e.printStackTrace();

     }

   }