Question

java如何实现txt下载 就是从远程FTP服务器上直接把TXT文本下载下来！

Answer 1

strUrl为文件地址，fileName为文件在本地的保存路径，试试吧~

public static void writeFile(String strUrl, String fileName) {
URL url = null;
try {
url = new URL(strUrl);
} catch (MalformedURLException e2) {
e2.printStackTrace();
}
InputStream is = null;
try {
is = url.openStream();
} catch (IOException e1) {
e1.printStackTrace();
}
OutputStream os = null;
try {
os = new FileOutputStream( fileName);
int bytesRead = 0;
byte[] buffer = new byte[8192];

while ((bytesRead = is.read(buffer, 0, 8192)) != -1) {
os.write(buffer, 0, bytesRead);
}
System.out.println("下载成功："+strUrl);
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}

Answer 2

去看一下ftp协议的客户端部分，然后你简单实现一个ftp客户端，就可以下载文件了。大概原理就是这样，剩下的就是网上搜搜相关资料了。