struts2 文件上传Action类

public class MyFileUploadlAction extends ActionSupport {
    private File image;// 获取上传文件
    private String imageFileName;// 获取上传文件名称
    private String imageContentType;// 获取上传文件类型
 
    /**
      *
      */
    private static final long serialVersionUID = 1L;
 
    public String fileUpload() {
        if (image == null) {
            return "jsp";
        }
        File savefile = new File ("D:upload" + "/" + imageFileName);
        if (!savefile.getParentFile().exists() ) {
            savefile.getParentFile().mkdirs();
        }
        try {
            InputStream is = new BufferedInputStream (new FileInputStream (image) );
            OutputStream os = new BufferedOutputStream (new FileOutputStream (savefile) );
            byte[] buffer = new byte[4 * 1204];
            while (is.read (buffer) > 0) {
                os.write (buffer);
            }
            is.close();
            os.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
        String[] t = imageContentType.split ("/");
for (String s : t) {
            System.out.println (s);
        }
        return "jsp";
    }
}