commons-net包中ftp服务器的操作

参考网站

http://www.cnblogs.com/tw5566/archive/2010/12/27/2247855.html

http://lib.open-open.com/view/open1333860679171.html

package com.core;






import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;


import org.apache.commons.io.IOUtils;
import org.apache.commons.net.ftp.FTPClient;
import org.apache.commons.net.ftp.FTPReply;


/**
 *<p>ftp连接管理(使用apache commons-net-1.4.1 lib)</p>
 *@author tangw 2010-12-26
 *
 */
public class FtpConManager {
private static FtpConManager instance;
private FTPClient ftpClient =null;

/**
* get FtpConManager
* @return FtpConManager
*/
public synchronized static FtpConManager getInstance(){
if( instance == null ){
instance = new FtpConManager();
}
return instance;
}



/**
* <p>ftp登录</p>
* @param s_url ftp服务地址
* @param uname 用户名
* @param pass  密码
*/
public void login(String s_url,String uname,String pass){
ftpClient = new FTPClient();
try{
//连接
ftpClient.connect(s_url);
ftpClient.login(uname,pass);
//检测连接是否成功
int reply = ftpClient.getReplyCode();
if(!FTPReply.isPositiveCompletion(reply)) {
this.closeCon();
System.err.println("FTP server refused connection.");
System.exit(1);
}
}catch(Exception ex){
ex.printStackTrace();
//关闭
this.closeCon();
}
}//end method login


/**
* <p>ftp上传文件</p>
* @author tangw 2010-12-26
* @param srcUrl 须上传文件
* @param targetFname 生成目标文件
* @return true||false
*/
public boolean uploadFile(String srcUrl,String targetFname){
boolean flag = false;
if( ftpClient!=null ){
File srcFile = new File(srcUrl); 
FileInputStream fis = null;
try {
fis  = new FileInputStream(srcFile);

//设置上传目录 
ftpClient.changeWorkingDirectory("/ImData/");
           ftpClient.setBufferSize(1024); 
           ftpClient.setControlEncoding("GBK"); 
           
           //设置文件类型（二进制） 
           ftpClient.setFileType(FTPClient.BINARY_FILE_TYPE);
           //上传
           flag = ftpClient.storeFile(targetFname, fis); 
} catch (Exception e) {
e.printStackTrace();
this.closeCon();
}finally{
IOUtils.closeQuietly(fis);
}
}
return flag;
}//end method uploadFile


/**
* 
* <p>删除ftp上的文件</p>
* @author tangw 2010-12-26
* @param srcFname
* @return true || false
*/
public boolean removeFile(String srcFname){
boolean flag = false;
if( ftpClient!=null ){
try {
flag = ftpClient.deleteFile(srcFname);
} catch (IOException e) {
e.printStackTrace();
this.closeCon();
}
}
return flag;
}//end method removeFile

/**
*<p>销毁ftp连接</p> 
*@author tangw 2010-12-26
*/
public void closeCon(){
if(ftpClient !=null){
if(ftpClient.isConnected()){
try {
ftpClient.logout();
ftpClient.disconnect();
} catch (IOException e) {
e.printStackTrace();
} 
}
}
}//end method closeCon




public static void main(String[] args) {
FtpConManager.getInstance().login("127.0.0.1", "zf", "000000");
boolean flag = FtpConManager.getInstance().uploadFile("g://1.txt", "3.txt");
//boolean flag = FtpConManager.getInstance().removeFile("/ImData/3.zip");
System.out.println("flag:"+flag);
//FtpConManager.getInstance().closeCon();


}}

==============================================================

package com.core;


import java.io.ByteArrayInputStream;
import java.io.InputStream;


import org.apache.commons.net.ftp.FTPClient;


public class Test {
public static boolean uploadFileByApacheByBinary(StringBuffer fileContent,String server,String userName, String userPassword, String path, String fileName) {
  
               FTPClient ftpClient = new FTPClient();

               try {
               
                       InputStream is = null;

                       is = new ByteArrayInputStream(fileContent.toString().getBytes());

                       ftpClient.connect(server);

                       ftpClient.login(userName, userPassword);

                       ftpClient.changeWorkingDirectory(path);

                       ftpClient.setFileType(FTPClient.BINARY_FILE_TYPE);

                       ftpClient.storeFile(new String(fileName.getBytes("GBK"), "iso-8859-1") , is);

                       is.close();

               } catch (Exception e) {

                       e.printStackTrace();

                       return false;

               } finally {

                       if(ftpClient.isConnected()) {

                               try {

                                       ftpClient.disconnect();

                               } catch (Exception e) {

                                       e.printStackTrace();

                               }

                      }

               }

               return true;

       }
/*public static void upload(){
FtpConManager.getInstance().login("ftp服务地址", "登陆名", "密码");
//boolean flag = FtpConManager.getInstance().uploadFile("d://use_1.zip", "3.zip");
boolean flag = FtpConManager.getInstance().removeFile("/ImData/3.zip");
System.out.println("flag:"+flag);
//FtpConManager.getInstance().closeCon();


}*/
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub


}


}