Comment
yare
help fo ftp,
January 13, 2008 at 8:29 AM
January 13, 2008 at 8:29 AM
Hi I have a problem with my ftp, my code is not working. i may made mistake somehow, if some one can helping me pease. The code is like this.
import java.io.*;
import java.net.*;
import java.util.*;
public class Ass_2 {
public static void main(String[] args){
String currentPath = new String(); currentPath = "ftp://ftp.scit.wlv.ac.uk/pub";
try {
BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
String str,user,pass ;
System.out.println("\n\nTYPE HELP for view the list of commands and there Formats!!");
System.out.println("enter command 'bye' to exit the application");
System.out.print("Enter Username: ");
user = in.readLine();
System.out.print("Enter Password: ");
pass = in.readLine();
String tempPath = new String();
String toFile = new String();
tempPath = currentPath ;
readPage(currentPath);
while (!(str = in.readLine()).equals("bye")){
int tokencount;
StringTokenizer token = new StringTokenizer(str);
tokencount = token.countTokens();
String block[] = new String[tokencount];
for (int i = 0; i < tokencount; i++)
{
block[i] = token.nextToken();
System.out.println(block[i]);
}
if (block[0].equalsIgnoreCase("dir")){
System.out.println("DIR");
System.out.println(currentPath);
readPage(currentPath);
System.out.println("\n");
}else if(block[0].equalsIgnoreCase("cwd")){
System.out.println("Change Directory");
currentPath = changeDirectory(currentPath, block[1]);
System.out.println("\n");
}else if(block[0].equalsIgnoreCase("get")){
System.out.println("Wait Copying File : "+block[1]);
copyFile(currentPath,block[1]);
}else if(block[0].equalsIgnoreCase("cd..")){
currentPath = goBack(currentPath);
}else if(block[0].equalsIgnoreCase("help")){
System.out.println("\nYour in the Help Section \n");
}else {
System.out.println("Wrong Command or Format, Type Help!!!");
System.out.println("\n");
}
}
}
catch(Exception e){
System.out.println(e);
}
}
// Function to read content form the specfied path
static void readPage(String path){
String tempPath = new String();
try {
URL pageref = new URL(path);
InputStream in = pageref.openStream();
BufferedReader inline = new BufferedReader(new InputStreamReader(in));//(instr);
String line;
int linect = 0;
while((line = inline.readLine())!=null){
linect++;
System.out.println(line);
}
System.out.println("lines read = "+linect);
}
catch(Exception e){
System.out.println(e);
}
}
static String changeDirectory(String path,String dir){
path = path+"/"+dir;//System.out.println(">>>>>>>>>>> " +path+" >>> \n");
readPage(path);
return path;
}
// Function to go one setp back from the current directory
static String goBack(String currentPath){
return currentPath;
}
/// Function for basic copy TXT file
static void copyFile(String path,String file){
try {
path = path +"/"+ file; //System.out.println("Copy Path : " + path);
String fileName = new String();
fileName = file+".txt";
System.out.println("Out put file name : " + fileName);
OutputStreamWriter out = new OutputStreamWriter(new FileOutputStream(fileName));
URL pageref = new URL(path);
InputStream in = pageref.openStream();
BufferedReader inline = new BufferedReader(new InputStreamReader(in));//(instr);
String line;
int linect = 0;
while((line = inline.readLine())!=null){
System.out.println(line);
linect++; //System.out.println(line);
out.write(line+"\r\n");
}
out.close();
System.out.println("File - " +file+ " - copyed Successfully !!");
}
catch(Exception e){
System.out.println(e);
}
}
}
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import java.io.*;
import java.net.*;
import java.util.*;
public class Ass_2 {
public static void main(String[] args){
String currentPath = new String(); currentPath = "ftp://ftp.scit.wlv.ac.uk/pub";
try {
BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
String str,user,pass ;
System.out.println("\n\nTYPE HELP for view the list of commands and there Formats!!");
System.out.println("enter command 'bye' to exit the application");
System.out.print("Enter Username: ");
user = in.readLine();
System.out.print("Enter Password: ");
pass = in.readLine();
String tempPath = new String();
String toFile = new String();
tempPath = currentPath ;
readPage(currentPath);
while (!(str = in.readLine()).equals("bye")){
int tokencount;
StringTokenizer token = new StringTokenizer(str);
tokencount = token.countTokens();
String block[] = new String[tokencount];
for (int i = 0; i < tokencount; i++)
{
block[i] = token.nextToken();
System.out.println(block[i]);
}
if (block[0].equalsIgnoreCase("dir")){
System.out.println("DIR");
System.out.println(currentPath);
readPage(currentPath);
System.out.println("\n");
}else if(block[0].equalsIgnoreCase("cwd")){
System.out.println("Change Directory");
currentPath = changeDirectory(currentPath, block[1]);
System.out.println("\n");
}else if(block[0].equalsIgnoreCase("get")){
System.out.println("Wait Copying File : "+block[1]);
copyFile(currentPath,block[1]);
}else if(block[0].equalsIgnoreCase("cd..")){
currentPath = goBack(currentPath);
}else if(block[0].equalsIgnoreCase("help")){
System.out.println("\nYour in the Help Section \n");
}else {
System.out.println("Wrong Command or Format, Type Help!!!");
System.out.println("\n");
}
}
}
catch(Exception e){
System.out.println(e);
}
}
// Function to read content form the specfied path
static void readPage(String path){
String tempPath = new String();
try {
URL pageref = new URL(path);
InputStream in = pageref.openStream();
BufferedReader inline = new BufferedReader(new InputStreamReader(in));//(instr);
String line;
int linect = 0;
while((line = inline.readLine())!=null){
linect++;
System.out.println(line);
}
System.out.println("lines read = "+linect);
}
catch(Exception e){
System.out.println(e);
}
}
static String changeDirectory(String path,String dir){
path = path+"/"+dir;//System.out.println(">>>>>>>>>>> " +path+" >>> \n");
readPage(path);
return path;
}
// Function to go one setp back from the current directory
static String goBack(String currentPath){
return currentPath;
}
/// Function for basic copy TXT file
static void copyFile(String path,String file){
try {
path = path +"/"+ file; //System.out.println("Copy Path : " + path);
String fileName = new String();
fileName = file+".txt";
System.out.println("Out put file name : " + fileName);
OutputStreamWriter out = new OutputStreamWriter(new FileOutputStream(fileName));
URL pageref = new URL(path);
InputStream in = pageref.openStream();
BufferedReader inline = new BufferedReader(new InputStreamReader(in));//(instr);
String line;
int linect = 0;
while((line = inline.readLine())!=null){
System.out.println(line);
linect++; //System.out.println(line);
out.write(line+"\r\n");
}
out.close();
System.out.println("File - " +file+ " - copyed Successfully !!");
}
catch(Exception e){
System.out.println(e);
}
}
}
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