// 上传之后的文件保存在这个文件夹下
		String filepath = this.getServletContext().getRealPath("")+java.io.File.separator+"picture"+java.io.File.separator;
		String filename = "";
		String type="";
		ServletInputStream in = request.getInputStream();
		byte[] buf = new byte[4048];
		int len = in.readLine(buf, 0, buf.length);
		String f = new String(buf, 0, len - 1); 
		while ((len = in.readLine(buf, 0, buf.length)) != -1) {
			filename = new String(buf, 0, len);
		    int j = filename.lastIndexOf("\"");
		    int p = filename.lastIndexOf("."); 
		    //文件类型
		    type=filename.substring(p,j);   
		    //文件名称
		    filename = System.currentTimeMillis()+type;  

		    DataOutputStream fileStream = new DataOutputStream(
			new BufferedOutputStream(new FileOutputStream(filepath+ filename))
		    );

		    len = in.readLine(buf, 0, buf.length); 
		    len = in.readLine(buf, 0, buf.length); 
		    while ((len = in.readLine(buf, 0, buf.length)) != -1) {
		        String tempf = new String(buf, 0, len - 1);
		        if (tempf.equals(f) || tempf.equals(f + "--")) {
		            break;    
		        }
		        else{
				 // 写入
		        	 fileStream.write(buf, 0, len);
		        }
		    }
		    fileStream.close();
		}
		PrintWriter out=response.getWriter();
		String result = filename ;
		out.print(result);
		out.close();
		in.close();