ftp远程上传即读取文件

上传
private void upload(File srcFile, String destFileURL) throws Exception {
      FileSystemManager manager;
      try {
          manager = VFS.getManager();
          FileObject srcFileObject = manager.resolveFile(srcFile, "");
          FileObject destFileObject = manager.resolveFile(destFileURL);//这个是ftp地址
          FileUtil.copyContent(srcFileObject, destFileObject);//在远程地址空间上复制目标文件
      } catch (Exception e) {
          e.printStackTrace();
      }


  }


//远程ftp读取读取
URL u=new URL(url);//这个是ftp文件完整地址 
URLConnection urlconn=u.openConnection(); 
urlconn.getInputStream();//获得InputStream流。
下面可以针对不同的文件格式，对其进行不同的包装。

//如excel文件
//xlsx
OPCPackage opc = OPCPackage.open(urlconn.getInputStream());
			xwb = new XSSFWorkbook(opc);

//xls
POIFSFileSystem pf = new POIFSFileSystem(urlconn.getInputStream());
			HSSFWorkbook wb = new HSSFWorkbook(pf);