Java实现ftp上传文件、文件夹

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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 上传到ftp服务器哪个路径下	
     * @param addr 地址
     * @param port 端口号
     * @param username 用户名
     * @param password 密码
     * @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 上传的文件或文件夹
     * @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);
   }
}