去伺服器的FTP路徑下上讀取檔案
package com.sinosoft.util;
import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.SocketException;
import org.apache.commons.net.ftp.FTPClient;
public class Ftp {
/**
* 去 伺服器的FTP路徑下上讀取檔案
*
* @param ftpUserName
* @param ftpPassword
* @param ftpPath
* @param FTPServer
* @return
*/
public static String readConfigFileForFTP(String ftpUserName, String ftpPassword,
String ftpPath, String ftpHost, int ftpPort,
String fileName) {
StringBuffer resultBuffer = new StringBuffer();
InputStream in = null;
FTPClient ftpClient = null;
System.out.println("開始讀取絕對路徑" + ftpPath + "檔案!");
try {
ftpClient = FTPUtil.getFTPClient(ftpHost, ftpPassword, ftpUserName, ftpPort);
ftpClient.setControlEncoding("UTF-8"); // 中文支援
ftpClient.setFileType(FTPClient.BINARY_FILE_TYPE);
ftpClient.enterLocalPassiveMode();
ftpClient.changeWorkingDirectory(ftpPath);
in = ftpClient.retrieveFileStream(fileName);
} catch (FileNotFoundException e) {
System.out.println("沒有找到" + ftpPath + "檔案");
e.printStackTrace();
return "下載配置檔案失敗，請聯絡管理員.";
} catch (SocketException e) {
System.out.println("連線FTP失敗.");
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
System.out.println("檔案讀取錯誤。");
e.printStackTrace();
return "配置檔案讀取失敗，請聯絡管理員.";
}
if (in != null) {
BufferedReader br = new BufferedReader(new InputStreamReader(in));
String data = null;
try {
while ((data = br.readLine()) != null) {
resultBuffer.append(data + "\n");
}
} catch (IOException e) {
System.out.println("檔案讀取錯誤。");
e.printStackTrace();
return "配置檔案讀取失敗，請聯絡管理員.";
} finally {
try {
ftpClient.disconnect();
} catch (IOException e) {
e.printStackTrace();
}
}
} else {
System.out.println("in為空，不能讀取。");
return "配置檔案讀取失敗，請聯絡管理員.";
}
System.out.println("resultBuffer.toString()=" + resultBuffer.toString());
return resultBuffer.toString();
}
public static void main(String[] args) {
readConfigFileForFTP("dawei", "gjjl302", "Zdy", "218.60.42.207", 21, "upload/22.txt");
}
}