Android中关于FTP的文件上传和下载
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Android中关于FTP的文件上传和下载
此篇博客为整理文章,文章出处:http://www.cnblogs.com/xyc20080413/archive/2013/04/08/3008646.html
1.首先下载commons-net jar包,可以百度下载。
FTP的文件上传和下载的工具类:
[java] view plain copy
- package ryancheng.example.progressbar;
- import java.io.File;
- import java.io.FileOutputStream;
- import java.io.InputStream;
- import java.io.OutputStream;
- import java.io.RandomAccessFile;
- 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;
- import android.os.Environment;
- public class FTPManager {
- FTPClient ftpClient = null;
- public FTPManager() {
- ftpClient = new FTPClient();
- }
- // 连接到ftp服务器
- public synchronized boolean connect() throws Exception {
- boolean bool = false;
- if (ftpClient.isConnected()) {//判断是否已登陆
- ftpClient.disconnect();
- }
- ftpClient.setDataTimeout(20000);//设置连接超时时间
- ftpClient.setControlEncoding("utf-8");
- ftpClient.connect("ip地址", 端口);
- if (FTPReply.isPositiveCompletion(ftpClient.getReplyCode())) {
- if (ftpClient.login("用户名", "密码")) {
- bool = true;
- System.out.println("ftp连接成功");
- }
- }
- return bool;
- }
- // 创建文件夹
- public boolean createDirectory(String path) throws Exception {
- boolean bool = false;
- String directory = path.substring(0, path.lastIndexOf("/") + 1);
- int start = 0;
- int end = 0;
- if (directory.startsWith("/")) {
- start = 1;
- }
- end = directory.indexOf("/", start);
- while (true) {
- String subDirectory = directory.substring(start, end);
- if (!ftpClient.changeWorkingDirectory(subDirectory)) {
- ftpClient.makeDirectory(subDirectory);
- ftpClient.changeWorkingDirectory(subDirectory);
- bool = true;
- }
- start = end + 1;
- end = directory.indexOf("/", start);
- if (end == -1) {
- break;
- }
- }
- return bool;
- }
- // 实现上传文件的功能
- public synchronized boolean uploadFile(String localPath, String serverPath)
- throws Exception {
- // 上传文件之前,先判断本地文件是否存在
- File localFile = new File(localPath);
- if (!localFile.exists()) {
- System.out.println("本地文件不存在");
- return false;
- }
- System.out.println("本地文件存在,名称为:" + localFile.getName());
- createDirectory(serverPath); // 如果文件夹不存在,创建文件夹
- System.out.println("服务器文件存放路径:" + serverPath + localFile.getName());
- String fileName = localFile.getName();
- // 如果本地文件存在,服务器文件也在,上传文件,这个方法中也包括了断点上传
- long localSize = localFile.length(); // 本地文件的长度
- FTPFile[] files = ftpClient.listFiles(fileName);
- long serverSize = 0;
- if (files.length == 0) {
- System.out.println("服务器文件不存在");
- serverSize = 0;
- } else {
- serverSize = files[0].getSize(); // 服务器文件的长度
- }
- if (localSize <= serverSize) {
- if (ftpClient.deleteFile(fileName)) {
- System.out.println("服务器文件存在,删除文件,开始重新上传");
- serverSize = 0;
- }
- }
- RandomAccessFile raf = new RandomAccessFile(localFile, "r");
- // 进度
- long step = localSize / 100;
- long process = 0;
- long currentSize = 0;
- // 好了,正式开始上传文件
- ftpClient.enterLocalPassiveMode();
- ftpClient.setFileType(FTP.BINARY_FILE_TYPE);
- ftpClient.setRestartOffset(serverSize);
- raf.seek(serverSize);
- OutputStream output = ftpClient.appendFileStream(fileName);
- byte[] b = new byte[1024];
- int length = 0;
- while ((length = raf.read(b)) != -1) {
- output.write(b, 0, length);
- currentSize = currentSize + length;
- if (currentSize / step != process) {
- process = currentSize / step;
- if (process % 10 == 0) {
- System.out.println("上传进度:" + process);
- }
- }
- }
- output.flush();
- output.close();
- raf.close();
- if (ftpClient.completePendingCommand()) {
- System.out.println("文件上传成功");
- return true;
- } else {
- System.out.println("文件上传失败");
- return false;
- }
- }
- // 实现下载文件功能,可实现断点下载
- public synchronized boolean downloadFile(String localPath, String serverPath)
- throws Exception {
- // 先判断服务器文件是否存在
- FTPFile[] files = ftpClient.listFiles(serverPath);
- if (files.length == 0) {
- System.out.println("服务器文件不存在");
- return false;
- }
- System.out.println("远程文件存在,名字为:" + files[0].getName());
- localPath = localPath + files[0].getName();
- // 接着判断下载的文件是否能断点下载
- long serverSize = files[0].getSize(); // 获取远程文件的长度
- File localFile = new File(localPath);
- long localSize = 0;
- if (localFile.exists()) {
- localSize = localFile.length(); // 如果本地文件存在,获取本地文件的长度
- if (localSize >= serverSize) {
- System.out.println("文件已经下载完了");
- File file = new File(localPath);
- file.delete();
- System.out.println("本地文件存在,删除成功,开始重新下载");
- return false;
- }
- }
- // 进度
- long step = serverSize / 100;
- long process = 0;
- long currentSize = 0;
- // 开始准备下载文件
- ftpClient.enterLocalActiveMode();
- ftpClient.setFileType(FTP.BINARY_FILE_TYPE);
- OutputStream out = new FileOutputStream(localFile, true);
- ftpClient.setRestartOffset(localSize);
- InputStream input = ftpClient.retrieveFileStream(serverPath);
- byte[] b = new byte[1024];
- int length = 0;
- while ((length = input.read(b)) != -1) {
- out.write(b, 0, length);
- currentSize = currentSize + length;
- if (currentSize / step != process) {
- process = currentSize / step;
- if (process % 10 == 0) {
- System.out.println("下载进度:" + process);
- }
- }
- }
- out.flush();
- out.close();
- input.close();
- // 此方法是来确保流处理完毕,如果没有此方法,可能会造成现程序死掉
- if (ftpClient.completePendingCommand()) {
- System.out.println("文件下载成功");
- return true;
- } else {
- System.out.println("文件下载失败");
- return false;
- }
- }
- // 如果ftp上传打开,就关闭掉
- public void closeFTP() throws Exception {
- if (ftpClient.isConnected()) {
- ftpClient.disconnect();
- }
- }
- }
一.Android中FTP文件上传代码:
[java] view plain copy
- // 上传例子
- private void ftpUpload() {
- new Thread() {
- public void run() {
- try {
- System.out.println("正在连接ftp服务器....");
- FTPManager ftpManager = new FTPManager();
- if (ftpManager.connect()) {
- if (ftpManager.uploadFile(ftpManager.rootPath + "UpdateXZMarketPlatform.apk", "mnt/sdcard/")) {
- ftpManager.closeFTP();
- }
- }
- } catch (Exception e) {
- // TODO: handle exception
- // System.out.println(e.getMessage());
- }
- }
- }.start();
- }
二.Android中FTP文件下载代码:
[java] view plain copy
- // 下载例子
- private void ftpDownload() {
- new Thread() {
- public void run() {
- try {
- System.out.println("正在连接ftp服务器....");
- FTPManager ftpManager = new FTPManager();
- if (ftpManager.connect()) {
- if (ftpManager.downloadFile(ftpManager.rootPath, "20120723_XFQ07_XZMarketPlatform.db")) {
- ftpManager.closeFTP();
- }
- }
- } catch (Exception e) {
- // TODO: handle exception
- // System.out.println(e.getMessage());
- }
- }
- }.start();
- }
自己之前做项目的时候写过的FTP上传代码:
[java] view plain copy
- 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();
- }
- }
- }
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