java版ftp简易客户端（可以获取文件的名称及文件大小）

package com.ccb.ftp;
import java.io.IOException;
import java.net.SocketException;
import org.apache.commons.net.ftp.FTPClient;
import org.apache.commons.net.ftp.FTPFile;
import org.apache.commons.net.ftp.FTPListParseEngine;
public class FTPClientTool {
/**
* @param args
*/
public static void main(String[] args) {
FTPClient client = new FTPClient();
try {
//连接指定的ftp服务器，需要设定好服务器的ip地址
client.connect("192.168.20.21");
//登录的用户名和密码
client.login("admin", "admin");
System.out.println("login ftp ok ...");
//查看当前目录
String workingDirectory = client.printWorkingDirectory();
System.out.println(workingDirectory);
//获取指定目录下的文件及目录
FTPListParseEngine engine = client.initiateListParsing("/dir1/zenoss-2.4.1-x86.vmware.zip");
while(engine.hasNext()){
FTPFile[] files = engine.getNext(5);
for(int i=0;i<files.length;i++){
//获取文件名
System.out.println(files[i].getName());
//获取文件大小
long size = files[i].getSize();
System.out.println(size/1024+"kb");
}
}
} catch (SocketException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}