1 下载jar包
- 1 new一个项目:
- 2 进去 http://mvnrepository.com/
- 3 搜说commons-net
- 3 点进去选择版本 3.3,复制:第一行不要
- 4 新建标签复制
- 5 新建一个Test类,测试结果
FTPClient ftp = new FTPClient();
ftp.connect("192.168.232.140", 21);
ftp.login("ftpuser", "123");
ftp.setFileType(FTPClient.BINARY_FILE_TYPE);
InputStream is = new FileInputStream("f:/1.PNG");
ftp.storeFile("abc.PNG", is);
ftp.logout();
System.out.println("上传成功");
以上代码被封装在了工具类FtpUtile中,以后用到可直接使用,不用自己写
package com.bjsxt.utils;
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;
public class FtpUtil {
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);
ftp.login(username, password);
reply = ftp.getReplyCode();
if (!FTPReply.isPositiveCompletion(reply)) {
ftp.disconnect();
return result;
}
if (!ftp.changeWorkingDirectory(basePath+filePath)) {
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);
}
}
}
}
ftp.setFileType(FTP.BINARY_FILE_TYPE);
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;
}
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);
ftp.login(username, password);
reply = ftp.getReplyCode();
if (!FTPReply.isPositiveCompletion(reply)) {
ftp.disconnect();
return result;
}
ftp.changeWorkingDirectory(remotePath);
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("E:/a.png"));
boolean flag = uploadFile("192.168.17.129", 21, "ftpuser", "ftpuser", "/home/ftpuser/","/", "abc1.png", in);
System.out.println(flag);
} catch (FileNotFoundException e) {
e.printStackTrace();
}
}
}
public static void main(String[] args) throws IOException {
InputStream is = new FileInputStream("F:/1.PNG");
boolean result = FtpUtil.uploadFile(
"192.168.232.140", 21, "ftpuser", "123", "/home/ftpuser/aaa", "bbb"
, "aaa.PNG", is);
if (result) {
System.out.println("上传成功");
} else {
System.out.println("上传失败");
}
至此,测试成功
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