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Posted to user@struts.apache.org by "Pingili, Madhupal" <MP...@BBandT.com> on 2004/08/26 20:16:39 UTC
RE: can a non struts application be called from inside stuts appl
ication.
How about using HTTP Client package like this:
public static String getUrlResponse(String url) {
String result = null;
HttpClient client = new HttpClient();
// Create a method instance.
HttpMethod method = new GetMethod(url);
// Execute the method.
try {
int statusCode = client.executeMethod(method);
} catch (HttpRecoverableException e) {
//log the error
} catch (IOException e) {
//log the error
}
// Read the response body.
byte[] responseBody = method.getResponseBody();
if( result == null ) {
result = new String(responseBody);
}
// Release the connection.
method.releaseConnection();
return result;
}
In your case, have 3 methods method1, method2 and method3 for 3 servlets
and execute them one after the other.
Just try and see if it solves your problem.
------------
Reddy Pingili
> -----Original Message-----
> From: Shilpa Nalgonda [SMTP:snalgonda@mypublisher.com]
> Sent: Thursday, August 26, 2004 2:03 PM
> To: Struts Users Mailing List
> Subject: RE: can a non struts application be called from inside stuts
> application.
>
> O.k thats great, but i have make a 3 different servlet calls one by one in
> my action class.
> Like gotoservlet1 then gotoServlet2 and then gotoServlet3,
>
> how can i achieve that in one action forward...
>
> -----Original Message-----
> From: Jim Barrows [mailto:jbarrows@sssc.com]
> Sent: Thursday, August 26, 2004 2:01 PM
> To: Struts Users Mailing List
> Subject: RE: can a non struts application be called from inside stuts
> application.
>
>
>
>
> > -----Original Message-----
> > From: Shilpa Nalgonda [mailto:snalgonda@mypublisher.com]
> > Sent: Thursday, August 26, 2004 10:53 AM
> > To: Struts Users Mailing List
> > Subject: RE: can a non struts application be called from inside stuts
> > application.
> >
> >
> >
> >
> > Servlets are accessed by URLs, action classes forward to
> > URLs. So you can
> > forward to them, but call them directly akin to a method
> > call... I don't
> > think so... not without a lot of handwaving and chanting anyway.
> >
> > >> so you mean to say that i have to rewrite my old servlet
> > class into an
> > action class.
> > My old servlet class which takes httprequest and httpresponse
> > and calls do
> > post should be converted to an action class execute method having the
> > functionality of do post method.
>
> Not really... if your forward can be the URL /gotoMyServlet, then your
> okay... it will still work as is. If in your code you want to do
> something
> like gotoMyServlet.doPut(blah), then your going to have to do some work to
> set up the environment that the servlet expects to run in.
>
>
> >
> >
> >
> > -----Original Message-----
> > From: Jim Barrows [mailto:jbarrows@sssc.com]
> > Sent: Thursday, August 26, 2004 1:43 PM
> > To: Struts Users Mailing List
> > Subject: RE: can a non struts application be called from inside stuts
> > application.
> >
> >
> >
> >
> > > -----Original Message-----
> > > From: Shilpa Nalgonda [mailto:snalgonda@mypublisher.com]
> > > Sent: Thursday, August 26, 2004 10:37 AM
> > > To: Struts Users Mailing List
> > > Subject: can a non struts application be called from inside stuts
> > > application.
> > >
> > >
> > > i have a shopping cart struts application, when update
> > > button of a jsp is
> > > clicked, some action is performed and after the successful
> > > excution of that
> > > action, a servlet which takes certain parameters should be
> > > called from the
> > > action class.
> > >
> > > The servlets which i am talking about are non-struts based
> > > and are already
> > > implemented, and it would take much time to redo those using
> > > struts, so i am
> > > wondering if there is any way to reuse those and call those
> > > servlets from
> > > actions class.
> >
> > Servlets are accessed by URLs, action classes forward to
> > URLs. So you can
> > forward to them, but call them directly akin to a method
> > call... I don't
> > think so... not without a lot of handwaving and chanting anyway.
> >
> >
> > >
> > >
> > >
> > >
> > >
> > > -----Original Message-----
> > > From: Jim Barrows [mailto:jbarrows@sssc.com]
> > > Sent: Tuesday, August 10, 2004 4:33 PM
> > > To: Struts Users Mailing List
> > > Subject: RE: Servlet help for a Struts programmer
> > >
> > >
> > >
> > >
> > > > -----Original Message-----
> > > > From: Michael McGrady [mailto:mike@michaelmcgrady.com]
> > > > Sent: Tuesday, August 10, 2004 1:22 PM
> > > > To: Struts Users Mailing List
> > > > Subject: Re: Servlet help for a Struts programmer
> > > >
> > > >
> > > > At 12:57 PM 8/10/2004, you wrote:
> > > > >Yes, Struts is based on Servlets, but you don't have to know
> > > > >anything about Servlets to make a useful Struts webapp.
> > > >
> > > > I wonder if this is true. I cannot imagine that it could be.
> > > > Maybe it
> > > > is. I am beginning to think so. ///;-)
> > >
> > > Try it yourself.... no JSP's. No struts, and basic CRUD
> > > operations on an
> > > address book.
> > >
> > > Now today, you would probably be smart. You would have a
> > > CRUD servlet for
> > > the "actions", that would redirect to a servlet for
> > > generating HTML. That's
> > > 4 serlvets handling CRUD, one servlet to generate the
> > > add/edit form page,
> > > one servlet to generate the list address page.
> > >
> > > And no, you don't get to use jakarta's ECS either!!! Nope.
> > > Not at all..
> > > you can however drool over it :)
> > >
> > > out.println( "<html>");
> > > out.println( "<head>");
> > > out.println( "<title>THis is the title of my
> > > page.</title>");
> > > <out.println( "</head>");
> > >
> > > Or:
> > >
> > > out.println( "<html>"
> > > +"<head>"
> > > +" <title>This is the title of my page.</title>");
> > > +"</head>");
> > >
> > >
> > >
> > ---------------------------------------------------------------------
> > > To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> > > For additional commands, e-mail: user-help@struts.apache.org
> > >
> > >
> > >
> > ---------------------------------------------------------------------
> > > To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> > > For additional commands, e-mail: user-help@struts.apache.org
> > >
> > >
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> > For additional commands, e-mail: user-help@struts.apache.org
> >
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> > For additional commands, e-mail: user-help@struts.apache.org
> >
> >
>
> ---------------------------------------------------------------------
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> For additional commands, e-mail: user-help@struts.apache.org
>
>
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---------------------------------------------------------------------
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Re: can a non struts application be called from inside stuts application.
Posted by Bill Siggelkow <bi...@bellsouth.net>.
I wouldn't use HttpClient for this if what you want to do is call the
business logic called by the servlets -- particularly if you have access
to the source code of the servlets.
My 3 cents ...
Shilpa Nalgonda wrote:
> from where do i get this package, and where exactly will doPost method
> go...i have never used httpClient Package, so can you point me to the
> correct resource..
>
> -----Original Message-----
> From: Pingili, Madhupal [mailto:MPingili@BBandT.com]
> Sent: Thursday, August 26, 2004 2:17 PM
> To: 'Struts Users Mailing List'
> Subject: RE: can a non struts application be called from inside stuts
> application.
>
>
> How about using HTTP Client package like this:
> public static String getUrlResponse(String url) {
> String result = null;
> HttpClient client = new HttpClient();
> // Create a method instance.
> HttpMethod method = new GetMethod(url);
> // Execute the method.
> try {
> int statusCode = client.executeMethod(method);
> } catch (HttpRecoverableException e) {
> //log the error
> } catch (IOException e) {
> //log the error
> }
> // Read the response body.
> byte[] responseBody = method.getResponseBody();
> if( result == null ) {
> result = new String(responseBody);
> }
> // Release the connection.
> method.releaseConnection();
> return result;
> }
>
> In your case, have 3 methods method1, method2 and method3 for 3 servlets
> and execute them one after the other.
>
> Just try and see if it solves your problem.
>
> ------------
> Reddy Pingili
>
>
>
>>-----Original Message-----
>>From: Shilpa Nalgonda [SMTP:snalgonda@mypublisher.com]
>>Sent: Thursday, August 26, 2004 2:03 PM
>>To: Struts Users Mailing List
>>Subject: RE: can a non struts application be called from inside stuts
>>application.
>>
>>O.k thats great, but i have make a 3 different servlet calls one by one in
>>my action class.
>>Like gotoservlet1 then gotoServlet2 and then gotoServlet3,
>>
>>how can i achieve that in one action forward...
>>
>>-----Original Message-----
>>From: Jim Barrows [mailto:jbarrows@sssc.com]
>>Sent: Thursday, August 26, 2004 2:01 PM
>>To: Struts Users Mailing List
>>Subject: RE: can a non struts application be called from inside stuts
>>application.
>>
>>
>>
>>
>>
>>>-----Original Message-----
>>>From: Shilpa Nalgonda [mailto:snalgonda@mypublisher.com]
>>>Sent: Thursday, August 26, 2004 10:53 AM
>>>To: Struts Users Mailing List
>>>Subject: RE: can a non struts application be called from inside stuts
>>>application.
>>>
>>>
>>>
>>>
>>>Servlets are accessed by URLs, action classes forward to
>>>URLs. So you can
>>>forward to them, but call them directly akin to a method
>>>call... I don't
>>>think so... not without a lot of handwaving and chanting anyway.
>>>
>>>
>>>>>so you mean to say that i have to rewrite my old servlet
>>>
>>>class into an
>>>action class.
>>>My old servlet class which takes httprequest and httpresponse
>>>and calls do
>>>post should be converted to an action class execute method having the
>>>functionality of do post method.
>>
>>Not really... if your forward can be the URL /gotoMyServlet, then your
>>okay... it will still work as is. If in your code you want to do
>>something
>>like gotoMyServlet.doPut(blah), then your going to have to do some work to
>>set up the environment that the servlet expects to run in.
>>
>>
>>
>>>
>>>
>>>-----Original Message-----
>>>From: Jim Barrows [mailto:jbarrows@sssc.com]
>>>Sent: Thursday, August 26, 2004 1:43 PM
>>>To: Struts Users Mailing List
>>>Subject: RE: can a non struts application be called from inside stuts
>>>application.
>>>
>>>
>>>
>>>
>>>
>>>>-----Original Message-----
>>>>From: Shilpa Nalgonda [mailto:snalgonda@mypublisher.com]
>>>>Sent: Thursday, August 26, 2004 10:37 AM
>>>>To: Struts Users Mailing List
>>>>Subject: can a non struts application be called from inside stuts
>>>>application.
>>>>
>>>>
>>>>i have a shopping cart struts application, when update
>>>>button of a jsp is
>>>>clicked, some action is performed and after the successful
>>>>excution of that
>>>>action, a servlet which takes certain parameters should be
>>>>called from the
>>>>action class.
>>>>
>>>>The servlets which i am talking about are non-struts based
>>>>and are already
>>>>implemented, and it would take much time to redo those using
>>>>struts, so i am
>>>>wondering if there is any way to reuse those and call those
>>>>servlets from
>>>>actions class.
>>>
>>>Servlets are accessed by URLs, action classes forward to
>>>URLs. So you can
>>>forward to them, but call them directly akin to a method
>>>call... I don't
>>>think so... not without a lot of handwaving and chanting anyway.
>>>
>>>
>>>
>>>>
>>>>
>>>>
>>>>
>>>>-----Original Message-----
>>>>From: Jim Barrows [mailto:jbarrows@sssc.com]
>>>>Sent: Tuesday, August 10, 2004 4:33 PM
>>>>To: Struts Users Mailing List
>>>>Subject: RE: Servlet help for a Struts programmer
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>>-----Original Message-----
>>>>>From: Michael McGrady [mailto:mike@michaelmcgrady.com]
>>>>>Sent: Tuesday, August 10, 2004 1:22 PM
>>>>>To: Struts Users Mailing List
>>>>>Subject: Re: Servlet help for a Struts programmer
>>>>>
>>>>>
>>>>>At 12:57 PM 8/10/2004, you wrote:
>>>>>
>>>>>>Yes, Struts is based on Servlets, but you don't have to know
>>>>>>anything about Servlets to make a useful Struts webapp.
>>>>>
>>>>>I wonder if this is true. I cannot imagine that it could be.
>>>>> Maybe it
>>>>>is. I am beginning to think so. ///;-)
>>>>
>>>>Try it yourself.... no JSP's. No struts, and basic CRUD
>>>>operations on an
>>>>address book.
>>>>
>>>>Now today, you would probably be smart. You would have a
>>>>CRUD servlet for
>>>>the "actions", that would redirect to a servlet for
>>>>generating HTML. That's
>>>>4 serlvets handling CRUD, one servlet to generate the
>>>>add/edit form page,
>>>>one servlet to generate the list address page.
>>>>
>>>>And no, you don't get to use jakarta's ECS either!!! Nope.
>>>>Not at all..
>>>>you can however drool over it :)
>>>>
>>>>out.println( "<html>");
>>>> out.println( "<head>");
>>>> out.println( "<title>THis is the title of my
>>>>page.</title>");
>>>> <out.println( "</head>");
>>>>
>>>>Or:
>>>>
>>>>out.println( "<html>"
>>>> +"<head>"
>>>> +" <title>This is the title of my page.</title>");
>>>> +"</head>");
>>>>
>>>>
>>>>
>>>
>>>---------------------------------------------------------------------
>>>
>>>>To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
>>>>For additional commands, e-mail: user-help@struts.apache.org
>>>>
>>>>
>>>>
>>>
>>>---------------------------------------------------------------------
>>>
>>>>To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
>>>>For additional commands, e-mail: user-help@struts.apache.org
>>>>
>>>>
>>>
>>>---------------------------------------------------------------------
>>>To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
>>>For additional commands, e-mail: user-help@struts.apache.org
>>>
>>>
>>>---------------------------------------------------------------------
>>>To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
>>>For additional commands, e-mail: user-help@struts.apache.org
>>>
>>>
>>
>>---------------------------------------------------------------------
>>To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
>>For additional commands, e-mail: user-help@struts.apache.org
>>
>>
>>---------------------------------------------------------------------
>>To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
>>For additional commands, e-mail: user-help@struts.apache.org
>>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> For additional commands, e-mail: user-help@struts.apache.org
---------------------------------------------------------------------
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RE: can a non struts application be called from inside stuts application.
Posted by Shilpa Nalgonda <sn...@mypublisher.com>.
from where do i get this package, and where exactly will doPost method
go...i have never used httpClient Package, so can you point me to the
correct resource..
-----Original Message-----
From: Pingili, Madhupal [mailto:MPingili@BBandT.com]
Sent: Thursday, August 26, 2004 2:17 PM
To: 'Struts Users Mailing List'
Subject: RE: can a non struts application be called from inside stuts
application.
How about using HTTP Client package like this:
public static String getUrlResponse(String url) {
String result = null;
HttpClient client = new HttpClient();
// Create a method instance.
HttpMethod method = new GetMethod(url);
// Execute the method.
try {
int statusCode = client.executeMethod(method);
} catch (HttpRecoverableException e) {
//log the error
} catch (IOException e) {
//log the error
}
// Read the response body.
byte[] responseBody = method.getResponseBody();
if( result == null ) {
result = new String(responseBody);
}
// Release the connection.
method.releaseConnection();
return result;
}
In your case, have 3 methods method1, method2 and method3 for 3 servlets
and execute them one after the other.
Just try and see if it solves your problem.
------------
Reddy Pingili
> -----Original Message-----
> From: Shilpa Nalgonda [SMTP:snalgonda@mypublisher.com]
> Sent: Thursday, August 26, 2004 2:03 PM
> To: Struts Users Mailing List
> Subject: RE: can a non struts application be called from inside stuts
> application.
>
> O.k thats great, but i have make a 3 different servlet calls one by one in
> my action class.
> Like gotoservlet1 then gotoServlet2 and then gotoServlet3,
>
> how can i achieve that in one action forward...
>
> -----Original Message-----
> From: Jim Barrows [mailto:jbarrows@sssc.com]
> Sent: Thursday, August 26, 2004 2:01 PM
> To: Struts Users Mailing List
> Subject: RE: can a non struts application be called from inside stuts
> application.
>
>
>
>
> > -----Original Message-----
> > From: Shilpa Nalgonda [mailto:snalgonda@mypublisher.com]
> > Sent: Thursday, August 26, 2004 10:53 AM
> > To: Struts Users Mailing List
> > Subject: RE: can a non struts application be called from inside stuts
> > application.
> >
> >
> >
> >
> > Servlets are accessed by URLs, action classes forward to
> > URLs. So you can
> > forward to them, but call them directly akin to a method
> > call... I don't
> > think so... not without a lot of handwaving and chanting anyway.
> >
> > >> so you mean to say that i have to rewrite my old servlet
> > class into an
> > action class.
> > My old servlet class which takes httprequest and httpresponse
> > and calls do
> > post should be converted to an action class execute method having the
> > functionality of do post method.
>
> Not really... if your forward can be the URL /gotoMyServlet, then your
> okay... it will still work as is. If in your code you want to do
> something
> like gotoMyServlet.doPut(blah), then your going to have to do some work to
> set up the environment that the servlet expects to run in.
>
>
> >
> >
> >
> > -----Original Message-----
> > From: Jim Barrows [mailto:jbarrows@sssc.com]
> > Sent: Thursday, August 26, 2004 1:43 PM
> > To: Struts Users Mailing List
> > Subject: RE: can a non struts application be called from inside stuts
> > application.
> >
> >
> >
> >
> > > -----Original Message-----
> > > From: Shilpa Nalgonda [mailto:snalgonda@mypublisher.com]
> > > Sent: Thursday, August 26, 2004 10:37 AM
> > > To: Struts Users Mailing List
> > > Subject: can a non struts application be called from inside stuts
> > > application.
> > >
> > >
> > > i have a shopping cart struts application, when update
> > > button of a jsp is
> > > clicked, some action is performed and after the successful
> > > excution of that
> > > action, a servlet which takes certain parameters should be
> > > called from the
> > > action class.
> > >
> > > The servlets which i am talking about are non-struts based
> > > and are already
> > > implemented, and it would take much time to redo those using
> > > struts, so i am
> > > wondering if there is any way to reuse those and call those
> > > servlets from
> > > actions class.
> >
> > Servlets are accessed by URLs, action classes forward to
> > URLs. So you can
> > forward to them, but call them directly akin to a method
> > call... I don't
> > think so... not without a lot of handwaving and chanting anyway.
> >
> >
> > >
> > >
> > >
> > >
> > >
> > > -----Original Message-----
> > > From: Jim Barrows [mailto:jbarrows@sssc.com]
> > > Sent: Tuesday, August 10, 2004 4:33 PM
> > > To: Struts Users Mailing List
> > > Subject: RE: Servlet help for a Struts programmer
> > >
> > >
> > >
> > >
> > > > -----Original Message-----
> > > > From: Michael McGrady [mailto:mike@michaelmcgrady.com]
> > > > Sent: Tuesday, August 10, 2004 1:22 PM
> > > > To: Struts Users Mailing List
> > > > Subject: Re: Servlet help for a Struts programmer
> > > >
> > > >
> > > > At 12:57 PM 8/10/2004, you wrote:
> > > > >Yes, Struts is based on Servlets, but you don't have to know
> > > > >anything about Servlets to make a useful Struts webapp.
> > > >
> > > > I wonder if this is true. I cannot imagine that it could be.
> > > > Maybe it
> > > > is. I am beginning to think so. ///;-)
> > >
> > > Try it yourself.... no JSP's. No struts, and basic CRUD
> > > operations on an
> > > address book.
> > >
> > > Now today, you would probably be smart. You would have a
> > > CRUD servlet for
> > > the "actions", that would redirect to a servlet for
> > > generating HTML. That's
> > > 4 serlvets handling CRUD, one servlet to generate the
> > > add/edit form page,
> > > one servlet to generate the list address page.
> > >
> > > And no, you don't get to use jakarta's ECS either!!! Nope.
> > > Not at all..
> > > you can however drool over it :)
> > >
> > > out.println( "<html>");
> > > out.println( "<head>");
> > > out.println( "<title>THis is the title of my
> > > page.</title>");
> > > <out.println( "</head>");
> > >
> > > Or:
> > >
> > > out.println( "<html>"
> > > +"<head>"
> > > +" <title>This is the title of my page.</title>");
> > > +"</head>");
> > >
> > >
> > >
> > ---------------------------------------------------------------------
> > > To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> > > For additional commands, e-mail: user-help@struts.apache.org
> > >
> > >
> > >
> > ---------------------------------------------------------------------
> > > To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> > > For additional commands, e-mail: user-help@struts.apache.org
> > >
> > >
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> > For additional commands, e-mail: user-help@struts.apache.org
> >
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> > For additional commands, e-mail: user-help@struts.apache.org
> >
> >
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> For additional commands, e-mail: user-help@struts.apache.org
>
>
> ---------------------------------------------------------------------
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> For additional commands, e-mail: user-help@struts.apache.org
>
---------------------------------------------------------------------
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---------------------------------------------------------------------
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