smartupload实现文件下载

最新推荐文章于 2016-09-02 23:39:56 发布

zhaoweixs

最新推荐文章于 2016-09-02 23:39:56 发布

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分类专栏：下载

本文链接：https://blog.youkuaiyun.com/zhaoweixs/article/details/8693080

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最近用io直接下载文件怎么也不行不是文件无法下载就是抛already call那个异常写上out.clear和out=pageContext.pushBody也无解没办法就用了这个来下载代码十分简单用了servlet来实现：

public class DownLoadServlet extends HttpServlet {
@Override
public void init(ServletConfig config) throws ServletException {
// TODO Auto-generated method stub
this.config=config;
}

private ServletConfig config;
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp)
   throws ServletException, IOException {
  // TODO Auto-generated method stub
  //super.doGet(req, resp);
  try {
   String filename="f:\\20121225.xls";
   SmartUpload upload=new SmartUpload();
   upload.initialize(config, req, resp);
   upload.setContentDisposition(null);
   upload.downloadFile(filename);
  } catch (SmartUploadException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
}

@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
   throws ServletException, IOException {
  // TODO Auto-generated method stub
  this.doGet(req, resp);
}

}