河北重大技术需求开发第七版开发第八天

今天完成了一个上传文件的功能

 在网页点击上传可以将文件上传到java文件下

 

    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        request.setCharacterEncoding("utf-8");
        response.setCharacterEncoding("utf-8");
        response.setContentType("text/html; charset=UTF-8");
        boolean isMultipart=ServletFileUpload.isMultipartContent(request);
        if(isMultipart)
        {
            FileItemFactory factory=new DiskFileItemFactory();
            ServletFileUpload upload=new ServletFileUpload(factory);
            try {
                List<FileItem> items=upload.parseRequest(request);
                Iterator<FileItem> it = items.iterator();
                while(it.hasNext())
                {
                    FileItem item = it.next();
                    String itemname = item.getFieldName();
                    int sno=-1;
                    String sname=null;
                    
                    if(item.isFormField())
                    {
                        if(itemname.equals("sno"))
                        {
                            sno=Integer.parseInt(item.getString("utf-8"));
                        }else if(itemname.equals("sname"))
                        {
                            sname=item.getString("utf-8");
                            sname=item.getName();
                        }else
                        {
                            System.out.println("其他字段");
                        }
                    }else
                    {
                        String filename=item.getName();
                        String path=request.getSession().getServletContext().getRealPath("download");
                        //String path="E:\upload";
                        //System.out.println(path);
                        
                        File file=new File(path,filename);
                        item.write(file);
                        request.setAttribute("news", filename+"上传成功,谢谢分享");
                        request.getRequestDispatcher("print.jsp").forward(request, response);
                        System.out.println(filename+"上传成功!!!");
                        return;
                    }
                    
                }
            } catch (FileUploadException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } catch (Exception e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }
    }