1. ftp的路徑怎麼設置
問一下，你是想做ftp上傳下載么？
首先你需要安裝一個ftp服務端程序，啟動起來，然後下載一個ftp客戶端程序，測試能不能連接，首先這一塊兒需要測試通過。
代碼ftp上傳下載
2.1 上傳代碼：
import java.io.File;
import java.io.FileInputStream;
import org.apache.commons.net.ftp.FTPClient;
import org.apache.commons.net.ftp.FTPReply;
public class test {
private FTPClient ftp;
/**
*
* @param path 上傳到ftp伺服器哪個路徑下
* @param addr 地址
* @param port 埠號
* @param username 用戶名
* @param password 密碼
* @return
* @throws Exception
*/
private boolean connect(String path,String addr,int port,String username,String password) throws Exception {
boolean result = false;
ftp = new FTPClient();
int reply;
ftp.connect(addr,port);
ftp.login(username,password);
ftp.setFileType(FTPClient.BINARY_FILE_TYPE);
reply = ftp.getReplyCode();
if (!FTPReply.isPositiveCompletion(reply)) {
ftp.disconnect();
return result;
}
ftp.changeWorkingDirectory(path);
result = true;
return result;
}
/**
*
* @param file 上傳的文件或文件夾
* @throws Exception
*/
private void upload(File file) throws Exception{
if(file.isDirectory()){
ftp.makeDirectory(file.getName());
ftp.changeWorkingDirectory(file.getName());
String[] files = file.list();
for (int i = 0; i < files.length; i++) {
File file1 = new File(file.getPath()+"\\"+files[i] );
if(file1.isDirectory()){
upload(file1);
ftp.changeToParentDirectory();
}else{
File file2 = new File(file.getPath()+"\\"+files[i]);
FileInputStream input = new FileInputStream(file2);
ftp.storeFile(file2.getName(), input);
input.close();
}
}
}else{
File file2 = new File(file.getPath());
FileInputStream input = new FileInputStream(file2);
ftp.storeFile(file2.getName(), input);
input.close();
}
}
public static void main(String[] args) throws Exception{
test t = new test();
t.connect("", "localhost", 21, "yhh", "yhhazr");
File file = new File("e:\\uploadify");
t.upload(file);
}
}
2.2 下載代碼
這里沒有用到filter，如果用filter就可以過濾想要的文件。
public class Ftp {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
Ftp ftp = new Ftp();
String hostname = "www.strawberry.com";
Integer port = 21;
String username = "username";
String password = "password";
String remote = "/c.txt";
String local = "/home/tin/LeonChen/FTP/";
try {
ftp.connect(hostname, port, username, password);
System.out.println("接收狀態："+ftp.download(remote, local));
ftp.disconnect();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
private FTPClient ftpClient = new FTPClient();
/*
* * 連接到FTP伺服器
* * @param hostname 主機名
* * @param port 埠
* * @param username 用戶名
* * @param password 密碼
* * @return 是否連接成功
* * @throws IOException
*/
private boolean connect(String hostname, int port, String username,
String password) throws IOException {
ftpClient.connect(hostname, port);
ftpClient.setControlEncoding("UTF-8");
if (FTPReply.isPositiveCompletion(ftpClient.getReplyCode())) {
if (ftpClient.login(username, password)) {
return true;
}
}
disconnect();
return false;
}
/*
* 從FTP伺服器上下載文件,支持斷點續傳，上傳百分比匯報
*
* @param remote 遠程文件路徑
*
* @param local 本地文件路徑
*
* @return 上傳的狀態
*
* @throws IOException
*/
public DownloadStatus download(String remote, String local)
throws IOException {
// 設置被動模式
ftpClient.enterLocalPassiveMode();
// 設置以二進制方式傳輸
ftpClient.setFileType(FTP.BINARY_FILE_TYPE);
DownloadStatus result;
// 檢查遠程文件是否存在
FTPFile[] files = ftpClient.listFiles(new String(remote
.getBytes("UTF-8"), "iso-8859-1"));
if (files.length != 1) {
System.out.println("遠程文件不存在");
return DownloadStatus.Remote_File_Noexist;
}
long lRemoteSize = files[0].getSize();
String fildName = files[0].getName();
// 本地存在文件，進行斷點下載
File f = new File(local+fildName);
if (f.exists()) {
long localSize = f.length();
if (localSize >= lRemoteSize) {
System.out.println("本地文件大於遠程文件，下載中止");
return DownloadStatus.Local_Bigger_Remote;
}
// 進行斷點續傳，並記錄狀態
FileOutputStream out = new FileOutputStream(f, true);
ftpClient.setRestartOffset(localSize);
InputStream in = ftpClient.retrieveFileStream(new String(remote.getBytes("UTF-8"), "iso-8859-1"));
byte[] bytes = new byte[1024];
long step = lRemoteSize / 100;
long process = localSize / step;
int c;
while ((c = in.read(bytes)) != -1) {
out.write(bytes, 0, c);
localSize += c;
long nowProcess = localSize / step;
if (nowProcess > process) {
process = nowProcess;
if (process % 10 == 0)
System.out.println("下載進度：" + process);
// TODO 更新文件下載進度,值存放在process變數中
}
}
in.close();
out.close();
boolean isDo = ftpClient.completePendingCommand();
if (isDo) {
result = DownloadStatus.Download_From_Break_Success;
} else {
result = DownloadStatus.Download_From_Break_Failed;
}
} else {
OutputStream out = new FileOutputStream(f);
InputStream in = ftpClient.retrieveFileStream(new String(remote.getBytes("UTF-8"), "iso-8859-1"));
byte[] bytes = new byte[1024];
long step = lRemoteSize / 100;
long process = 0;
long localSize = 0L;
int c;
while ((c = in.read(bytes)) != -1) {
out.write(bytes, 0, c);
localSize += c;
long nowProcess = localSize / step;
if (nowProcess > process) {
process = nowProcess;
if (process % 10 == 0)
System.out.println("下載進度：" + process);
// TODO 更新文件下載進度,值存放在process變數中
}
}
in.close();
out.close();
boolean upNewStatus = ftpClient.completePendingCommand();
if (upNewStatus) {
result = DownloadStatus.Download_New_Success;
} else {
result = DownloadStatus.Download_New_Failed;
}
}
return result;
}
private void disconnect() throws IOException {
if (ftpClient.isConnected()) {
ftpClient.disconnect();
}
}
}
2. 怎麼設置ftp伺服器
1、打開【控制面板】->【程序和功能】->【啟用或關閉windows功能】，在彈出的窗口中，勾選【InternetInformationServices】下面的【FTP伺服器】三個選項，點擊【確定】按鈕完鉛中宏成安裝
2、打開【控制面板】->【管理工培跡具】->【InternetInformationServices(IIS)管理器】，雙擊打開它
3、在打開的IIS管理界面，滑鼠右鍵點擊【網站】，選擇右鍵菜單【添加FTP站點】
4、在【添加FTP站點】窗口中，輸入站點名稱，選擇文件存放的物理路徑，點擊【下一步】按鈕
5、在【綁定和SSL設置】界面，填寫當前配置的伺服器ip地址，埠號默認21，可以修改槐冊。本文僅演示，所以勾選了【無SSL】，此項根據實際需要選擇。點擊【下一步】按鈕
6、在【身份驗證和授權信息】界面，勾選【匿名】、【基本】、【所有用戶】、【讀取】、【寫入】，這些僅做演示，實際按需勾選，點擊【完成】按鈕
7、添加成功後，在左側的網站下面可以看到剛剛添加的FTP站點名稱
8、設置成功後，可以使用【ftp://ip地址:埠】在瀏覽器或者文件夾地址欄中輸入運行。如果埠是默認的21，可以省略，否則，埠號不能省略