1.前言
在开发中，会遇到向FTP服务器上传文件的需求,首先要导入 commons-net-3.3.jar 然后利用api进行相关操作，具体功能如下：
Ftp相关代码
代码语言：javascript复制import android.util.Log;
import org.apache.commons.net.ftp.FTP;
import org.apache.commons.net.ftp.FTPClient;
import org.apache.commons.net.ftp.FTPReply;
import java.io.FileInputStream;
public class FTPClientUtils {
private static final String TAG = "MainActivity";
private FTPClient ftpClient = null; // FTP客户端
/**
* 连接到FTP服务器
*
* @param host ftp服务器域名
* @param username 访问用户名
* @param password 访问密码
* @param port 端口
* @return 是否连接成功
*/
public boolean ftpConnect(String host, String username, String password, int port) {
try {
ftpClient = new FTPClient();
ftpClient.connect(host,port);
// 根据返回的状态码，判断链接是否建立成功
if (FTPReply.isPositiveCompletion(ftpClient.getReplyCode())) {
boolean status = ftpClient.login(username, password);
/*
* 设置文件传输模式
* 避免一些可能会出现的问题，在这里必须要设定文件的传输格式。
* 在这里我们使用BINARY_FILE_TYPE来传输文本、图像和压缩文件。
*/
ftpClient.setFileType(FTP.BINARY_FILE_TYPE);
ftpClient.enterLocalPassiveMode();
return status;
}
} catch (Exception e) {
e.printStackTrace();
}
return false;
}
/**
* 断开ftp服务器连接
*
* @return 断开结果
*/
public boolean ftpDisconnect() {
// 判断空指针
if (ftpClient == null) {
return true;
}
// 断开ftp服务器连接
try {
ftpClient.logout();
ftpClient.disconnect();
return true;
} catch (Exception e) {
e.printStackTrace();
}
return false;
}
/**
* ftp 文件上传
*
* @param srcFilePath 源文件目录
* @param desFileName 文件名称
* @return 文件上传结果
*/
public boolean ftpUpload(String srcFilePath, String desFileName) {
boolean status = false;
try {
FileInputStream srcFileStream = new FileInputStream(srcFilePath);
status = ftpClient.storeFile(desFileName, srcFileStream);
srcFileStream.close();
return status;
} catch (Exception e) {
e.printStackTrace();
}
return status;
}
/**
* ftp 更改目录
*
* @param path 更改的路径
* @return 更改是否成功
*/
public boolean ftpChangePath(String path) {
boolean status = false;
try {
status = ftpClient.changeWorkingDirectory(path);
} catch (Exception e) {
e.printStackTrace();
}
return status;
}
}2.调用api
代码语言：javascript复制boolean isConnect = mFtpClient.ftpConnect("服务器host", "用户名", "密码", 21);//默认端口号是21
if (isConnect) {
boolean isSuccessful = mFtpClient.ftpUpload("/sdcard/" folderName "/" mPicturename, "/htdocs/pics/" mPicturename);
if (isSuccessful) {
mFtpClient.ftpDisconnect();
//上传成功
} else {
//上传失败
}
} else {
//服务器连接失败
}附录：自己之前做项目的时候写过的FTP上传代码：
代码语言：javascript复制package com.kandao.yunbell.videocall;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.SocketException;
import org.apache.commons.net.ftp.FTP;
import org.apache.commons.net.ftp.FTPClient;
import org.apache.commons.net.ftp.FTPReply;
import com.kandao.yunbell.common.SysApplication;
import android.content.Context;
import android.util.Log;
public class MyUploadThread extends Thread {
private String fileName;// 文件名字
private String filePath;// 文件本地路径
private String fileStoragePath;// 文件服务器存储路径
private String serverAddress;// 服务器地址
private String ftpUserName;// ftp账号
private String ftpPassword;// ftp密码
private Context mContext;
public MyUploadThread() {
super();
// TODO Auto-generated constructor stub
}
public MyUploadThread(Context mContext,String fileName, String filePath,
String fileStoragePath,String serverAddress,String ftpUserName,String ftpPassword) {
super();
this.fileName = fileName;
this.filePath = filePath;
this.fileStoragePath = fileStoragePath;
this.serverAddress = serverAddress;
this.ftpUserName = ftpUserName;
this.ftpPassword = ftpPassword;
this.mContext=mContext;
}
@Override
public void run() {
super.run();
try {
FileInputStream fis=null;
FTPClient ftpClient = new FTPClient();
String[] idPort = serverAddress.split(":");
ftpClient.connect(idPort[0], Integer.parseInt(idPort[1]));
int returnCode = ftpClient.getReplyCode();
Log.i("caohai", "returnCode,upload:" returnCode);
boolean loginResult = ftpClient.login(ftpUserName, ftpPassword);
Log.i("caohai", "loginResult:" loginResult);
if (loginResult && FTPReply.isPositiveCompletion(returnCode)) {// 如果登录成功
// 设置上传目录
if (((SysApplication) mContext).getIsVideo()) {
((SysApplication) mContext).setIsVideo(false);
boolean ff=ftpClient.changeWorkingDirectory(fileStoragePath "/video/");
Log.i("caohai", "ff:" ff);
}else{
boolean ee=ftpClient.changeWorkingDirectory(fileStoragePath "/photo/");
Log.i("caohai", "ee:" ee);
}
ftpClient.setBufferSize(1024);
// ftpClient.setControlEncoding("iso-8859-1");
// ftpClient.enterLocalPassiveMode();
ftpClient.setFileType(FTP.BINARY_FILE_TYPE);
fis = new FileInputStream(filePath "/"
fileName);
Log.i("caohai", "fileStoragePath00000:" fileStoragePath);
String[] path = fileStoragePath.split("visitorRecord");
boolean fs = ftpClient.storeFile(new String((path[1]
"/photo/" fileName).getBytes(), "iso-8859-1"), fis);
Log.i("caohai", "shifoushangchuanchenggong:" fs);
fis.close();
ftpClient.logout();
//ftpClient.disconnect();
} else {// 如果登录失败
ftpClient.disconnect();
}
} catch (NumberFormatException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (SocketException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (UnsupportedEncodingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
} 总结
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