1､ftp4j引用Maven配置
通过github伪maven存储库发布，如果要在maven项目中使用ftp4j作为依赖项，只需将以下存储库定义添加到pom.xml即可：
<repositories>
<repository>
<id>github-asbachb-releases</id>
https://raw.github.com/asbachb/mvn-repo/master/releases
</repository>
</repositories>要将ftp4j添加为依赖项，只需将以下声明添加到pom.xml即可：
<dependency>
<groupId>com.github.asbachb</groupId>
<artifactId>ftp4j</artifactId>
<version>1.7.3</version>
</dependency>
如果想使用ftp4j的最新官方发布包含以下声明：
<dependency>
<groupId>it.sauronsoftware.ftp4j</groupId>
<artifactId>ftp4j</artifactId>
<version>1.7.2</version>
</dependency>
2､使用ftp4j上传文件
import it.sauronsoftware.ftp4j.FTPClient;
import java.io.File;
/**
* 该类使用FTP4j客户机库将本地机器中的文件上载到远程FTP服务器
*/
public class FTP_FileUpload
{
public static void main(String[] args)
{
/* Check for input data */
if (args.length != 3)
{
System.err.println("Usage: java FTP_FileUpload " + "<IpAddress> <UserName> <Password>");
System.err.println("Example: java FTP_FileUpload 1.2.3.4 other other");
System.exit(1);
}
// Assignment
String ipAddress = args[0];
String userName = args[1];
String password = args[2];
System.out.println("Ip Address = " + ipAddress);
System.out.println("User = " + userName);
System.out.println("Pass = " + password);
// FTP程序操作从这里开始
FTPClient client = null;
try
{
// 从实用程序类获取FTP连接
client = FTPUtility.connect(ipAddress, userName, password);
if (client != null)
{
try
{
//定义要上载的具有完整路径的文件
String filePath = "sample.tar";
File fileUpload = new File(filePath);
System.out.println("Uploading the " + filePath + " to Remote Machine");
//上传文件
client.upload(fileUpload);
System.out.println("Successfully Uploaded the " + filePath + " File to Remote Machine");
}
catch (Exception e)
{
System.err.println("ERROR : Error in Transfering File to Remote Machine");
System.exit(3);
}
}
}
catch (Exception e)
{
System.err.println("ERROR : Error in Connecting to Remote Machine");
System.exit(1);
}
finally
{
if (client != null)
{
try
{
client.disconnect(true);
}
catch (Exception e)
{
System.err.println("ERROR : Error in disconnecting the Remote Machine");
}
}
}
System.exit(0);
}
}
/**
* Lädt den Inhalt des InputStreams local nach remote.
*/
private static void storeFile (String remote, InputStream local, FtpConnection con)
throws IOException, FTPIllegalReplyException, FTPException, FTPDataTransferException, FTPAbortedException
{
boolean conWasNull = con == null;
if (conWasNull)
con = cons.getClient();
FTPClient client = con.getFtpClient();
try
{
client.upload(remote, local, 0, 0, null);
}
finally
{
if (conWasNull)
con.setBusy(false);
}
local.close();
}
public void uploadFile(Context context,File fileName) {
FTPClient client = new FTPClient();
SharedPreferences userShare = context.getSharedPreferences("AUDIO_SOURCE", 0);
String USERNAME = userShare.getString("USERNAME", "");
String PASSWORD = userShare.getString("PASSWORD", "");
String FTP_HOST = userShare.getString("FTP_HOST", "");
Log.d("data" ,USERNAME+" "+PASSWORD+" "+FTP_HOST);
try {
client.connect(FTP_HOST);
client.login(USERNAME, PASSWORD);
client.setType(FTPClient.TYPE_BINARY);
client.changeDirectory("/");
client.upload(fileName, new MyTransferListener());
} catch (Exception e) {
e.printStackTrace();
Log.e("upload Error", e.toString());
//Toast.makeText(context,"client not connected !", Toast.LENGTH_LONG).show();
try {
client.disconnect(true);
} catch (Exception e2) {
Log.e("upload Error", e.toString());
//e2.printStackTrace();
}
}
}
public void uploadFile(Context context,File fileName) {
FTPClient client = new FTPClient();
SharedPreferences userShare = context.getSharedPreferences("AUDIO_SOURCE", 0);
String USERNAME = userShare.getString("USERNAME", "");
String PASSWORD = userShare.getString("PASSWORD", "");
String FTP_HOST = userShare.getString("FTP_HOST", "");
Log.d("data" ,USERNAME+" "+PASSWORD+" "+FTP_HOST);
try {
client.connect(FTP_HOST);
client.login(USERNAME, PASSWORD);
client.setType(FTPClient.TYPE_BINARY);
client.changeDirectory("/");
client.upload(fileName, new MyTransferListener());
} catch (Exception e) {
e.printStackTrace();
Log.e("upload Error", e.toString());
//Toast.makeText(context,"client not connected !", Toast.LENGTH_LONG).show();
try {
client.disconnect(true);
} catch (Exception e2) {
Log.e("upload Error", e.toString());
//e2.printStackTrace();
}
}
}3､使用ftp4j下载文件
package in.techdive.upload;
import it.sauronsoftware.ftp4j.FTPClient;
import java.io.File;
/**
这个类使用FTP4j库将文件从远程FTP服务器下载到本地机器。同时下载
*文件，它注册FTP监听器，它会得到通知，一旦FTP下载操作的状态
*下载完成/中止。
*/
public class FTP_FileDownload_WithListener
{
public static void main(String[] args)
{
/* Check for input data */
if (args.length != 3)
{
System.err.println("Usage: java FTP_FileDownload_WithListener " + "<IpAddress> <UserName> <Password>");
System.err.println("Example: java FTP_FileDownload_WithListener 1.2.3.4 other other");
System.exit(1);
}
// Variable assignment
String ipAddress = args[0];
String userName = args[1];
String password = args[2];
System.out.println("Ip Address = " + ipAddress);
System.out.println("User = " + userName);
System.out.println("Pass = " + password);
//FTP程序操作从这里开始
FTPClient client = null;
try
{
// Get the FTP Connection from the Utility class
client = FTPUtility.connect(ipAddress, userName, password);
if (client != null)
{
try
{
// 定义要下载的具有完整路径的文件
String filePath = "D:/Sample.zip";
File fileDownload = new File(filePath);
System.out.println("Downloading the " + filePath + " to the Local machine");
// 下载文件
client.download("Sample.zip", fileDownload, new MyFTPListener());
System.out.println("Successfully Downloaded the " + filePath + " file from the Remote Machine");
}
catch (Exception e)
{
System.err.println("ERROR : Error in downloading file from Remote Machine");
System.exit(3);
}
}
}
catch (Exception e)
{
System.err.println("ERROR : Error in Connecting to Remote Machine");
System.exit(1);
}
finally
{
if (client != null)
{
try
{
client.disconnect(true);
}
catch (Exception e)
{
System.err.println("ERROR : Error in disconnecting the Remote Machine");
}
}
}
System.exit(0);
}
}官方文档：https://github.com/asbachb/ftp4j