JAVA中如何通过IP和端口连接到远程计算机并读取文件？

如此类似也

import javanet;

import javaio;

public class FtpConn

{

public static void main(String [] args)throws Exception

{

URL u=new URL("ftp://ppmm:1111@localhost/read1txt");

URLConnection urlconn=uopenConnection();

BufferedReader br=new BufferedReader(new InputStreamReader(urlconngetInputStream()));

String line;

while(null!=(line=brreadLine()))

{

Systemoutprintln(line);

}

}

}

ftp://ppmm:1111@localhost/read1txt

其中localhost是ftp server地址

ppmm是用户名

1111是密码

匿名用户不用写用户名和密码如

ftp://localhost/read1txt

就可以了

import javaioBufferedReader;

import javaioFile;

import javaioFileReader;

/

@author lmq

/

public class RemoteFile {

public static void main(String[] args) throws Exception {

File remoteFile = new File("//1921687146/test/1txt");// 1921687146是对方机器IP，test是对方那个共享文件夹名字，如果没有共享是访问不到的

//远程文件其实主要是地址，地址弄对了就和本地文件没什么区别 ，windows里面//或者\\\\开头就表示这个文件是网络路径了其实这个地址就像我们再windows里面，点击开始

//然后点击运行，然后输入 \\1921687146/test/1txt访问远程文件一样的

BufferedReader br = new BufferedReader(new FileReader(remoteFile));

String str;

while ((str = brreadLine()) != null) {

Systemoutprintln(str);

}

brclose();

}

}

/

读取某个文件夹下的所有文件

/

public static boolean readfile(String filepath) throws FileNotFoundException, IOException {

try {

File file = new File(filepath);

if (!fileisDirectory()) {

Systemoutprintln("文件");

Systemoutprintln("path=" + filegetPath());

Systemoutprintln("absolutepath=" + filegetAbsolutePath());

Systemoutprintln("name=" + filegetName());

} else if (fileisDirectory()) {

Systemoutprintln("文件夹");

String[] filelist = filelist();

for (int i = 0; i < filelistlength; i++) {

File readfile = new File(filepath + "\\" + filelist[i]);

if (!readfileisDirectory()) {

Systemoutprintln("path=" + readfilegetPath());

Systemoutprintln("absolutepath="

+ readfilegetAbsolutePath());

Systemoutprintln("name=" + readfilegetName());

} else if (readfileisDirectory()) {

readfile(filepath + "\\" + filelist[i]);

}

}

}

} catch (FileNotFoundException e) {

Systemoutprintln("readfile() Exception:" + egetMessage());

}

return true;

}