用我的ftp服务器上的JAVA上传后的空文件 [英] Empty file after upload with JAVA on my ftp server

问题描述

在尝试使用java上传ftp服务器上的文件时遇到了一些问题。
这里是我的代码函数：

pre preublic static void upload_files（String un，String pw，String ip，String f ）{
try
{
FTPClient client = new FTPClient（）;
client.connect（ip）;
client.login（un，pw）;
InputStream is = new FileInputStream（f）;
client.storeFile（test2，is）;
is.close（）;

catch（Exception e）{
e.printStackTrace（）;





$ b

f是我想要的文件的路径上传（即C：\myfile）。在编译过程中没有错误，一个文件发送到服务器，但可悲的是空（0字节）。

我也注意到，一个简单的上传需要很长的时间一些文字（大约40多岁）甚至认为我得到了一个非常好的ISP。

我事先感谢所有人谁将帮助我。

问候，

解决方案

我认为这可能与文件传输模式有关。你可以设置到二进制的Trandfer模式。有时候当你用ASCII发送数据时，它会被破坏。
引用这个
https://superuser.com/questions/82726/how-to-set-binary-mode-by-default-when-ftping-to-a-remote-site

它告诉如何在FTP命令客户端中设置二进制模式。您也将在FTPClient类也有类似的规定。

刚发现我认为类似的问题是在这里回答
FTPClient - Java，上传文件

I am facing some problem while trying to upload a file on my ftp server with java. here is my code function :

public static void upload_files(String un, String pw, String ip, String f){
  try
    {
        FTPClient client = new FTPClient();
        client.connect(ip);
        client.login(un,pw);
        InputStream is = new FileInputStream(f);
        client.storeFile("test2",is);
        is.close();

    } catch(Exception e) {
        e.printStackTrace();
    }
    }

"f" is the path of the file I want to upload (ie "C:\myfile"). No error during the compilation, one file is well sent to the server, but sadly empty (0 byte).

I also noticed that it takes quite long for a simple upload of some text (around 40s) even thought I got a really good ISP.

I thank in advance all people who will help me.

Regards,

解决方案

I think it could be something to do with the mode of file transfer . Can you set the trandfer mode to Binary. Some times when you sent data in ASCII it goes corrupted . Refer to this https://superuser.com/questions/82726/how-to-set-binary-mode-by-default-when-ftping-to-a-remote-site

It tells how to set binary mode in FTP Command client. You will have a similar provision in FTPClient class also.

Just found I think similar question is answered here FTPClient - Java, upload file

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