Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.java.programmer > #12162

Re: : how to supply login/password to a web site

Show all headers | View raw

On Feb 17, 4:58 pm, Arne Vajhøj <a...@vajhoej.dk> wrote:
> On 2/17/2012 7:35 AM, zigzagdna wrote:
>
>
>
>
>
> > On Feb 16, 9:47 pm, zigzagdna<zigzag...@yahoo.com>  wrote:
> >> On Feb 16, 9:16 pm, Arne Vajhøj<a...@vajhoej.dk>  wrote:
> >>> On 2/16/2012 8:53 PM, zigzagdna wrote:
> >>>> I have a web site which I want to access from a java program.
> >>>> Problem is web site requires a login and password. However web site
> >>>> Does not provide in URL a way to specify login and password.
> >>>> Is there any way in my java progam I can supply various key strokes
> >>>> which I will
> >>>> Type when I logon manually.
>
> >>> Typical the web site will use form based login.
>
> >>> In which case you will need to first send a POST to the
> >>> action URL of the login page and then request the stuff you
> >>> need using the session cookie you got back from the login.
>
> >>> I will strongly recommend Apache HttpClient over raw
> >>> (Http)URLConnection.
>
> >>> I do have some examples on the shelf if you are interested.
> >   Can you post your examples in this thread, else please send them to
> > me at
>
> import java.util.ArrayList;
> import java.util.List;
>
> import org.apache.http.NameValuePair;
> import org.apache.http.client.HttpClient;
> import org.apache.http.client.entity.UrlEncodedFormEntity;
> import org.apache.http.client.methods.HttpGet;
> import org.apache.http.client.methods.HttpPost;
> import org.apache.http.impl.client.DefaultHttpClient;
> import org.apache.http.message.BasicNameValuePair;
> import org.apache.http.protocol.HTTP;
> import org.apache.http.util.EntityUtils;
>
> public class Login {
>      private HttpClient client;
>      public Login() {
>          client = new DefaultHttpClient();
>      }
>      public void login(String url, String userField, String userValue,
> String passField, String passValue) throws Exception {
>          List<NameValuePair> nvp = new ArrayList<NameValuePair>();
>          nvp.add(new BasicNameValuePair(userField, userValue));
>          nvp.add(new BasicNameValuePair(passField, passValue));
>          post(url, nvp);
>      }
>      public String get(String url) throws Exception {
>          HttpGet met = new HttpGet(url);
>          return EntityUtils.toString(client.execute(met).getEntity());
>      }
>      public String post(String url, List<NameValuePair> nvp) throws
> Exception {
>          HttpPost met = new HttpPost(url);
>          if (nvp != null) {
>              met.setEntity(new UrlEncodedFormEntity(nvp, HTTP.UTF_8));
>          }
>          return EntityUtils.toString(client.execute(met).getEntity());
>      }
>      public static void main(String[] args) throws Exception {
>          Login lgi = new Login();
>          lgi.get("http://localhost:8080/login/open/test.jsp");
>          lgi.login("http://localhost:8080/login/j_security_check",
> "j_username", "userarne", "j_password", "xxxxxx");
>
> System.out.println(lgi.get("http://localhost:8080/login/open/test.jsp"));
>      }
>
> }
>
> Arne- Hide quoted text -
>
> - Show quoted text -

Arne:
Thanks a lot.

Back to comp.lang.java.programmer | Previous | Next — Previous in thread | Find similar

Thread

: how to supply login/password to a web site zigzagdna <zigzagdna@yahoo.com> - 2012-02-16 17:53 -0800
  Re: : how to supply login/password to a web site Roedy Green <see_website@mindprod.com.invalid> - 2012-02-16 17:59 -0800
  Re: : how to supply login/password to a web site Arne Vajhøj <arne@vajhoej.dk> - 2012-02-16 21:16 -0500
    Re: : how to supply login/password to a web site zigzagdna <zigzagdna@yahoo.com> - 2012-02-16 18:46 -0800
    Re: : how to supply login/password to a web site zigzagdna <zigzagdna@yahoo.com> - 2012-02-16 18:47 -0800
      Re: : how to supply login/password to a web site zigzagdna <zigzagdna@yahoo.com> - 2012-02-17 04:35 -0800
        Re: : how to supply login/password to a web site Arne Vajhøj <arne@vajhoej.dk> - 2012-02-17 16:58 -0500
          Re: : how to supply login/password to a web site zigzagdna <zigzagdna@yahoo.com> - 2012-02-18 08:30 -0800

csiph-web