«

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.

Thanks,

On Thu, 16 Feb 2012 17:53:24 -0800 (PST), zigzagdna
<> wrote, quoted or indirectly quoted someone who
said :

>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
This is much easier than you would imagine.

see http://mindprod.com/jgloss/authentication.html
--
Roedy Green Canadian Mind Products
http://mindprod.com
One of the most useful comments you can put in a program is
"If you change this, remember to change ?XXX? too".

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.

And if it is a ASP.NET web side using view stat, then you
will have some extra challenges.

Arne

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.
>
> And if it is a ASP.NET web side using view stat, then you
> will have some extra challenges.
>
> Arne
Thanks so much, internet newsgroups are so helpful.

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.
>
> And if it is a ASP.NET web side using view stat, then you
> will have some extra challenges.
>
> Arne

Thanks a lot for your expert advise, internet newsgroups are so
helpful.

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.
>
> > And if it is a ASP.NET web side using view stat, then you
> > will have some extra challenges.
>
> > Arne
>
> Thanks a lot for your expert advise, internet newsgroups are so
> helpful.- Hide quoted text -
>
> - Show quoted text -

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 . My yahoo mail is decatvated.

Thanks a lot

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_);
}
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

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_);
> * * * * *}
> * * * * *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.