利用commons-net-3.2.jar实现ftp文件上传功能


import java.io.File;
import java.io.FileInputStream;
import org.apache.commons.net.ftp.FTPClient;
import org.apache.commons.net.ftp.FTPReply;

public class Test {

private  FTPClient ftp;

/**
*
* @param path 上传到ftp服务器哪个路径下
* @param addr 地址
* @param port 端口号
* @param username 用户名
* @param password 密码
* @return
* @throws Exception
*/
private  boolean connect(String path,String addr,int port,String username,String password) throws Exception
{
boolean result = false;
ftp = new FTPClient();
int reply;
ftp.connect(addr,port);
ftp.login(username,password);
ftp.setFileType(FTPClient.BINARY_FILE_TYPE);
reply = ftp.getReplyCode();
if (!FTPReply.isPositiveCompletion(reply))
{
ftp.disconnect();
return result;
}
ftp.changeWorkingDirectory(path);
result = true;
return result;
}
/**
*
* @param file 上传的文件或文件夹
* @throws Exception
*/
private void upload(File file) throws Exception
{
if(file.isDirectory()){
ftp.makeDirectory(file.getName());
ftp.changeWorkingDirectory(file.getName());
String[] files = file.list();
for (int i = 0; i < files.length; i++)
{
File file1 = new File(file.getPath()+"\\"+files[i] );
if(file1.isDirectory())
{
upload(file1);
ftp.changeToParentDirectory();
}else{
File file2 = new File(file.getPath()+"\\"+files[i]);
FileInputStream input = new FileInputStream(file2);
ftp.storeFile(file2.getName(), input);
input.close();
}
}
}else{
File file2 = new File(file.getPath());
FileInputStream input = new FileInputStream(file2);
ftp.storeFile(file2.getName(), input);
input.close();
}
}

/*采用Main方法调试测试功能*/
/*
public static void main(String[] args) throws Exception{
Test t = new Test();
t.connect("JFiles" , "10.33.0.35" , 21 , "sapftp" , "ftp.sap");
File file = new File("e:\\upload\\1.txt");
t.upload(file);
}
*/
}