1、安装ftp服务
Linux安装ftp组件
2、maven依赖
<commons-lang3.version>3.3.2</commons-lang3.version>
<commons-io.version>1.3.2</commons-io.version>
<commons-net.version>3.3</commons-net.version>
<!-- Apache工具组件 -->
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>${commons-lang3.version}</version>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-io</artifactId>
<version>${commons-io.version}</version>
</dependency>
<dependency>
<groupId>commons-net</groupId>
<artifactId>commons-net</artifactId>
<version>${commons-net.version}</version>
</dependency>
3、代码
private static void m1() throws Exception {
//public static boolean uploadFile(String host, int port, String username, String password, String basePath,
// String filePath, String filename, InputStream input) {
String host = "172.20.10.8";
int port = 21;
String username = "ftpuser";
String password = "123456";
String basePath = "/home/ftpuser/www/images";
String filePath = "/2020/07/25/";
filePath = "";
String filename = "222.jpg";
FileInputStream fileInputStream = new FileInputStream(new File("C:\Users\K\Desktop\111.jpg"));
boolean b1 = FtpUtil.uploadFile(host, port, username, password, basePath, filePath, filename, fileInputStream);
System.out.println(b1 ? "ok" : "fail");
}
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import org.apache.commons.net.ftp.FTP;
import org.apache.commons.net.ftp.FTPClient;
import org.apache.commons.net.ftp.FTPFile;
import org.apache.commons.net.ftp.FTPReply;
/**
* ftp上传下载工具类
*/
public class FtpUtil {
/**
* Description: 向FTP服务器上传文件
*
* @param host FTP服务器hostname
* @param port FTP服务器端口
* @param username FTP登录账号
* @param password FTP登录密码
* @param basePath FTP服务器基础目录
* @param filePath FTP服务器文件存放路径。例如分日期存放:/2015/01/01。文件的路径为basePath+filePath
* @param filename 上传到FTP服务器上的文件名
* @param input 输入流
* @return 成功返回true,否则返回false
*/
public static boolean uploadFile(String host, int port, String username, String password, String basePath,
String filePath, String filename, InputStream input) {
boolean result = false;
FTPClient ftp = new FTPClient();
try {
int reply;
ftp.connect(host, port);// 连接FTP服务器
// 如果采用默认端口,可以使用ftp.connect(host)的方式直接连接FTP服务器
ftp.login(username, password);// 登录
reply = ftp.getReplyCode();
if (!FTPReply.isPositiveCompletion(reply)) {
ftp.disconnect();
return result;
}
//切换到上传目录
if (!ftp.changeWorkingDirectory(basePath + filePath)) {
//如果目录不存在创建目录
String[] dirs = filePath.split("/");
String tempPath = basePath;
for (String dir : dirs) {
if (null == dir || "".equals(dir)) continue;
tempPath += "/" + dir;
if (!ftp.changeWorkingDirectory(tempPath)) {
if (!ftp.makeDirectory(tempPath)) {
return result;
} else {
ftp.changeWorkingDirectory(tempPath);
}
}
}
}
//设置为被动模式(如上传文件夹成功,不能上传文件,注释这行,否则报错refused:connect )
ftp.enterLocalPassiveMode();
//设置上传文件的类型为二进制类型
ftp.setFileType(FTP.BINARY_FILE_TYPE);
//上传文件
if (!ftp.storeFile(filename, input)) {
return result;
}
input.close();
ftp.logout();
result = true;
} catch (IOException e) {
e.printStackTrace();
} finally {
if (ftp.isConnected()) {
try {
ftp.disconnect();
} catch (IOException ioe) {
}
}
}
return result;
}
/**
* Description: 从FTP服务器下载文件
*
* @param host FTP服务器hostname
* @param port FTP服务器端口
* @param username FTP登录账号
* @param password FTP登录密码
* @param remotePath FTP服务器上的相对路径
* @param fileName 要下载的文件名
* @param localPath 下载后保存到本地的路径
* @return
*/
public static boolean downloadFile(String host, int port, String username, String password, String remotePath,
String fileName, String localPath) {
boolean result = false;
FTPClient ftp = new FTPClient();
try {
int reply;
ftp.connect(host, port);
// 如果采用默认端口,可以使用ftp.connect(host)的方式直接连接FTP服务器
ftp.login(username, password);// 登录
reply = ftp.getReplyCode();
if (!FTPReply.isPositiveCompletion(reply)) {
ftp.disconnect();
return result;
}
ftp.changeWorkingDirectory(remotePath);// 转移到FTP服务器目录
FTPFile[] fs = ftp.listFiles();
for (FTPFile ff : fs) {
if (ff.getName().equals(fileName)) {
File localFile = new File(localPath + "/" + ff.getName());
OutputStream is = new FileOutputStream(localFile);
ftp.retrieveFile(ff.getName(), is);
is.close();
}
}
ftp.logout();
result = true;
} catch (IOException e) {
e.printStackTrace();
} finally {
if (ftp.isConnected()) {
try {
ftp.disconnect();
} catch (IOException ioe) {
}
}
}
return result;
}
public static void main(String[] args) {
try {
FileInputStream in = new FileInputStream(new File("D:\temp\image\gaigeming.jpg"));
boolean flag = uploadFile("192.168.25.133", 21, "ftpuser", "ftpuser", "/home/ftpuser/www/images", "/2015/01/21", "gaigeming.jpg", in);
System.out.println(flag);
} catch (FileNotFoundException e) {
e.printStackTrace();
}
}
}