Webpage saver -- help

cubocik

Hey im kind new in this , but I have coded this but It doesn't work... import java.io.BufferedReader; import java.io.BufferedWriter; import java.io.File; import java.io.FileWriter; import java.io.IOException; import java.io.InputStreamReader; import java.net.MalformedURLException; import java.net.URL; public class webpagesaver{ public static void main(String[] args) throws IOException{ URLConnection conn = url.openConnection(); conn.connect(); InputStream is = conn.getInputStream(); String saveFile = "PaginaCopiada.html"; //name of SaveFile String location = "http://www.sapo.pt"; //ask website URL url = new URL(location); BufferedWriter out = new BufferedWriter(new FileWriter(saveFile)); BufferedReader in = new BufferedReader(new InputStreamReader(is)); String l = out.readLine(); while(l!=null){ out.write(l); out.newLine(); } in.close(); out.close(); } } The objective is : Put website link and Save all the page.. May you help me ?

Lost User

cubocik wrote:

It doesn't work...

Please do not assume that people can guess what this means; explain what happens, what results or errors you see etc. Also please use <pre> tags around your code so it is properly formatted.

One of these days I'm going to think of a really clever signature.

cubocik

Code:

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.MalformedURLException;
import java.net.URL;

public class webpagesaver{
public static void main(String[] args) throws IOException{

String saveFile = "PaginaCopiada.html"; //name of SaveFile
String location = "http://www.sapo.pt"; // website url withou #
URL url = new URL(location);
URLConnection conn = url.openConnection();
InputStream is = conn.getInputStream();
conn.connect();
BufferedWriter out = new BufferedWriter(new FileWriter(saveFile));
BufferedReader in = new BufferedReader(new InputStreamReader(is));
String l = out.readLine();
while(l!=null){
out.write(l);
out.newLine();
}
in.close();
out.close();

}
}

Compiling messages Code:

URLConnection conn = url.openConnection();
^
symbol: class URLConnection
location: class webpagesaver
webpagesaver.java:19: error: cannot find symbol
InputStream is = conn.getInputStream();
^
symbol: class InputStream
location: class webpagesaver
webpagesaver.java:23: error: cannot find symbol
String l = out.readLine();
^
symbol: method readLine()
location: variable out of type BufferedWriter
3 errors

Edit/Delete Message

Lost User

You are missing a few #import statements, and you are also trying to read from your output stream. Try this:

import java.io.*;
import java.net.*;

public class webpagesaver{
public static void main(String[] args) throws IOException{

    String saveFile = "PaginaCopiada.html"; //name of SaveFile
    String location = "http://www.sapo.pt"; // website url withou #
    URL url = new URL(location);
    URLConnection conn = url.openConnection();
    InputStream is = conn.getInputStream();
    conn.connect();
    BufferedWriter out = new BufferedWriter(new FileWriter(saveFile));
    BufferedReader in = new BufferedReader(new InputStreamReader(is));
    String l = in.readLine();
    while(l!=null){
        out.write(l);
        out.newLine();
    }
    in.close();
    out.close();
}

}

One of these days I'm going to think of a really clever signature.

cubocik

Im nice , ty thats work but.. for only this site , im trying for example facebook and its save a blank page

cubocik

Another I checked now with iol.pt , and when it was running its never finish running and when I control+C it it created a 1,5Gb

Lost User

You need to use your debugger to see what gets returned in the InputStream.

One of these days I'm going to think of a really clever signature.

cubocik

what debugger you advice?

Lost User

Whichever one you have available. If you are using eclipse or Netbeans then they both include built in visual debuggers. If you are using command line tools then jdb. You can find lots of useful information on Java in general starting at the Java Tutorials[^].

One of these days I'm going to think of a really clever signature.

cubocik

Thanks for the answer I just forgot the line l=in.nextLine(); If not the program will read infinite time the first Line lol, Thanks !!!!

Lost User

That's OK, so did I. :doh:

One of these days I'm going to think of a really clever signature.