read the source code
I want to read struts2's source code,but i found it's too complicated. so,i want to find a book that analysis the soure code. who can give me some suggestions?recommend some books to me? thanks very much!! -- View this message in context: http://www.nabble.com/read-the-source-code-tp26090230p26090230.html Sent from the Struts - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: user-unsubscr...@struts.apache.org For additional commands, e-mail: user-h...@struts.apache.org
Re: RE: Adding Json to existing action
Hi,
I already use the json plugin. I have written a new action to test the plugin
and it works fine - I get my json result.
But for some reason it doesn't work with the existing action (I didn't write
this action).
Here's what I did:
* Installed the json plugin by copying it into WEB-INF/lib
* Added a mapping to struts.xml which refers to the existing
action but has a json result type and a different name.
* Added the getJsonData() method to the action with return execute();
in the body.
Now I can call the action by it name myJsonData.action but it only
returns success.
Original-Nachricht
Datum: Tue, 27 Oct 2009 12:56:51 -0700 (PDT)
Von: Struts Two struts...@yahoo.ca
An: Struts Users Mailing List user@struts.apache.org
Betreff: Re: RE: Adding Json to existing action
What I meant was either to use Json Plugin for struts 2. Read the
following Wiki page:
http://cwiki.apache.org/WW/json-plugin.html
The JSON plugin is bundled with Struts since 2.1.7. Or you can write your
customized Struts 2 Result type for JSON and register it in your
struts2.xml for use [does not make sense to do that if you are using 2.1.7+].
To learn how to do that, take a look at the a sample provided in struts 2
in action. That should do it as well.
Hope this helps.
--- On Tue, 10/27/09, Michael Varlik m.var...@gmx.de wrote:
From: Michael Varlik m.var...@gmx.de
Subject: Re: RE: Adding Json to existing action
To: Struts Users Mailing List user@struts.apache.org
Received: Tuesday, October 27, 2009, 3:50 PM
I just noticed a mistake I made. When
adding the parameter to the result I also have to add a
getJsonData() method to the action, right?
I have added this method which actually calls execute().
Now I don't get null as a result anymore but I get
success which is also not what I expected.
I guess I have missed something. Since this is the first
time I use struts, I have no idea what I did wrong. Any
hints are appreciated.
Cheers,
Markus
Original-Nachricht
Datum: Tue, 27 Oct 2009 16:09:25 +0100
Von: Michael Varlik m.var...@gmx.de
An: Struts Users Mailing List user@struts.apache.org,
user@struts.apache.org
Betreff: Re: RE: Adding Json to existing action
Thanks for that hint. I have extended my mapping by
adding param
name=rootjsonData/param to my action
mapping's result tag. Now I don't get any
Exception and the server log looks just fine. However,
the value returned
by the action is just null.
Do you have any idea what could be wrong here?
Cheers,
Markus
Original-Nachricht
Datum: Tue, 27 Oct 2009 09:39:01 -0400
Von: Mike Baranski list-subscripti...@secmgmt.com
An: \'Struts Users Mailing List\' user@struts.apache.org
Betreff: RE: Adding Json to existing action
I do this to pass parameters, using prototype
js:
s:set name=foo value=%{'door' +
door.id}/
s:set name=form_name
value=%{'form_door' + door.id}/
s:set
name=door_description value=getText(#foo)/
s:if test=door.state ==
1
s:url
id=door_url action=unlocks:param name=door.id
value=door.id//s:url
s:form
method=POST action=unlock id=%{#form_name}
onsubmit=return false;
s:hidden name=door.id/
s:hidden name=door.state/
s:url var=locked_image
value=/pages/door-control/images/locked.png
/
s:submit type=image alt=Locked
src=%{locked_image} onclick=%{'new
Ajax.Updater(\\'' + #foo +'\\',
\\''
+
#door_url + '\\', {evalScripts: true}); return
false;'}/
/s:form
/s:if
-Original Message-
From: Struts Two [mailto:struts...@yahoo.ca]
Sent: Tuesday, October 27, 2009 9:24 AM
To: Struts Users Mailing List
Subject: Re: Adding Json to existing action
You can either use Json plugin or write your
own customized result type
that return JSON.
--- On Tue, 10/27/09, Michael Varlik m.var...@gmx.de
wrote:
From: Michael Varlik m.var...@gmx.de
Subject: Adding Json to existing action
To: user@struts.apache.org
Received: Tuesday, October 27, 2009,
1:07 PM
Hi,
I need to call an existing struts action
within my
application from a
JavaScript function. I thought it might
be possible to
create an additional entry in the struts
mapping file like
this:
action name=getDataJson
class=com.mypackage.MyAction
method=getData
result type=json /
/action
and then call the action with
getDataJson.action.
Unfortunately, when I try this a
NullPointerException
occurs in the action code. It seems,
some parameters are not
properly initialized.
What I'd like to know is: what is the
recommendet way of
calling an existing action to
Re: RE: Adding Json to existing action
Hi,
whis is the mapping for the action as it is currently used in the application.
No json here:
action name=getDailyAssetUtilizationReport
class=com.pbvm.crr.web.assetcalendar.AssetCalendarAction
method=getDailyAssetUtilizationReport
result/jsp/crr_Asset_Calendar_Daily_Report.jsp/result
/action
This is the mapping I have created which points to the same action but with
json enabled:
action name=getDailyAssetUtilizationReportNew
class=com.pbvm.crr.web.assetcalendar.AssetCalendarAction
method=getDailyAssetUtilizationReport
result type=json
param name=rootjsonData/param
/result
/action
The only method I have added to the action is this:
public String getJsonData() throws Exception {
return getDailyAssetUtilizationReport();
}
Do you need any additional information?
Original-Nachricht
Datum: Tue, 27 Oct 2009 13:00:42 -0700
Von: Musachy Barroso musa...@gmail.com
An: Struts Users Mailing List user@struts.apache.org
Betreff: Re: RE: Adding Json to existing action
can you show us your action mapping and the relevant parts of your code?
musachy
On Tue, Oct 27, 2009 at 8:50 AM, Michael Varlik m.var...@gmx.de wrote:
I just noticed a mistake I made. When adding the parameter to the result
I also have to add a getJsonData() method to the action, right?
I have added this method which actually calls execute(). Now I don't get
null as a result anymore but I get success which is also not what I
expected.
I guess I have missed something. Since this is the first time I use
struts, I have no idea what I did wrong. Any hints are appreciated.
Cheers,
Markus
Original-Nachricht
Datum: Tue, 27 Oct 2009 16:09:25 +0100
Von: Michael Varlik m.var...@gmx.de
An: Struts Users Mailing List user@struts.apache.org,
user@struts.apache.org
Betreff: Re: RE: Adding Json to existing action
Thanks for that hint. I have extended my mapping by adding param
name=rootjsonData/param to my action mapping's result tag. Now I
don't get any
Exception and the server log looks just fine. However, the value
returned
by the action is just null.
Do you have any idea what could be wrong here?
Cheers,
Markus
Original-Nachricht
Datum: Tue, 27 Oct 2009 09:39:01 -0400
Von: Mike Baranski list-subscripti...@secmgmt.com
An: \'Struts Users Mailing List\' user@struts.apache.org
Betreff: RE: Adding Json to existing action
I do this to pass parameters, using prototype js:
s:set name=foo value=%{'door' + door.id}/
s:set name=form_name value=%{'form_door' + door.id}/
s:set name=door_description value=getText(#foo)/
s:if test=door.state == 1
s:url id=door_url action=unlocks:param
name=door.id
value=door.id//s:url
s:form method=POST action=unlock
id=%{#form_name}
onsubmit=return false;
s:hidden name=door.id/
s:hidden name=door.state/
s:url var=locked_image
value=/pages/door-control/images/locked.png /
s:submit type=image alt=Locked
src=%{locked_image} onclick=%{'new Ajax.Updater(\\'' + #foo +'\\',
\\''
+
#door_url + '\\', {evalScripts: true}); return false;'}/
/s:form
/s:if
-Original Message-
From: Struts Two [mailto:struts...@yahoo.ca]
Sent: Tuesday, October 27, 2009 9:24 AM
To: Struts Users Mailing List
Subject: Re: Adding Json to existing action
You can either use Json plugin or write your own customized result
type
that return JSON.
--- On Tue, 10/27/09, Michael Varlik m.var...@gmx.de wrote:
From: Michael Varlik m.var...@gmx.de
Subject: Adding Json to existing action
To: user@struts.apache.org
Received: Tuesday, October 27, 2009, 1:07 PM
Hi,
I need to call an existing struts action within my
application from a
JavaScript function. I thought it might be possible to
create an additional entry in the struts mapping file like
this:
action name=getDataJson
class=com.mypackage.MyAction method=getData
result type=json /
/action
and then call the action with getDataJson.action.
Unfortunately, when I try this a NullPointerException
occurs in the action code. It seems, some parameters are not
properly initialized.
What I'd like to know is: what is the recommendet way of
calling an existing action to get JSON results? Is it a good
idea to do this at all?
Cheers,
Markus
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Re: read the source code
As far as I know, there are no books that specifically analyze the source code for Struts 2. I would suggest starting by reading the source code to Xwork. To really get a handle on what is going on, first try to get a solid understanding of the command pattern design pattern. Then, take a look at the xwork source to see how it is implemented there. Once you feel comfortable at that level, take a good look at the Servlet and JSP specifications. Then you can take a look at the source for Struts 2. It also wouldn't hurt to take a look at Google Guice. Although we aren't using Guice, we branched it early on and have been using it for internal dependency injection (both in Xwork and in Struts 2). As you get further along, feel free to post questions on the d...@struts.apache.org list. -Wes On Wed, Oct 28, 2009 at 3:09 AM, mark lu liujuns...@ygsoft.com wrote: I want to read struts2's source code,but i found it's too complicated. so,i want to find a book that analysis the soure code. who can give me some suggestions?recommend some books to me? thanks very much!! -- View this message in context: http://www.nabble.com/read-the-source-code-tp26090230p26090230.html Sent from the Struts - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: user-unsubscr...@struts.apache.org For additional commands, e-mail: user-h...@struts.apache.org -- Wes Wannemacher Head Engineer, WanTii, Inc. Need Training? Struts, Spring, Maven, Tomcat... Ask me for a quote! - To unsubscribe, e-mail: user-unsubscr...@struts.apache.org For additional commands, e-mail: user-h...@struts.apache.org
Re: deserializable ActionSupport
I believe the short answer is you can ignore this warning. If really inclined you could create your own base class that extends from ActionSupport and implements readObject(). It's very common in web frameworks to use Serializable objects for a couple or reasons, such as being able to preserve state across a server restart and for shipping objects around in a cluster. With that said, (IMHO) I believe it was a design mistake to have ActionSupport implement Serializable. I don't believe that either of the above really apply to Action objects since they are short-lived. The choice of making Actions Serializable should have been left to the developer and not forced by the framework. (Of course I realize that no one is truly forced to use ActionSupport and you can reimplement your own version that is not Serializable, but why should you need to.) Any committers care to comment on the reasons for having ActionSupport implement Serializable? On Wed, Oct 28, 2009 at 1:11 AM, Lee Clemens j...@leeclemens.net wrote: Hello, I (my IDE) noticed a warning showing that my Struts 2 Actions (they extend com.opensymphony.xwork2.ActionSupport) may be deserialized, compromising security. The IDE (IntelliJ 8.1) further states that the class may be deserializable as it supports the Serializable interface (ActionSupport does) and its readObject() method is not defined to immediately throw an error. Please excuse my naivety or if this is off-topic, but is this safe? Furthermore, how can I override the readObject() method as suggested and throw an error without compromising functionality within Struts? As an aside, if this warning can safely be addressed, why doesn't ActionSupport override readObject() to avoid this? Thanks, Lee - To unsubscribe, e-mail: user-unsubscr...@struts.apache.org For additional commands, e-mail: user-h...@struts.apache.org
Re: deserializable ActionSupport
The people who made that decision are by now long gone, and I can't think of any good reason myself. musachy On Wed, Oct 28, 2009 at 7:26 AM, Greg Lindholm greg.lindh...@gmail.com wrote: I believe the short answer is you can ignore this warning. If really inclined you could create your own base class that extends from ActionSupport and implements readObject(). It's very common in web frameworks to use Serializable objects for a couple or reasons, such as being able to preserve state across a server restart and for shipping objects around in a cluster. With that said, (IMHO) I believe it was a design mistake to have ActionSupport implement Serializable. I don't believe that either of the above really apply to Action objects since they are short-lived. The choice of making Actions Serializable should have been left to the developer and not forced by the framework. (Of course I realize that no one is truly forced to use ActionSupport and you can reimplement your own version that is not Serializable, but why should you need to.) Any committers care to comment on the reasons for having ActionSupport implement Serializable? On Wed, Oct 28, 2009 at 1:11 AM, Lee Clemens j...@leeclemens.net wrote: Hello, I (my IDE) noticed a warning showing that my Struts 2 Actions (they extend com.opensymphony.xwork2.ActionSupport) may be deserialized, compromising security. The IDE (IntelliJ 8.1) further states that the class may be deserializable as it supports the Serializable interface (ActionSupport does) and its readObject() method is not defined to immediately throw an error. Please excuse my naivety or if this is off-topic, but is this safe? Furthermore, how can I override the readObject() method as suggested and throw an error without compromising functionality within Struts? As an aside, if this warning can safely be addressed, why doesn't ActionSupport override readObject() to avoid this? Thanks, Lee - To unsubscribe, e-mail: user-unsubscr...@struts.apache.org For additional commands, e-mail: user-h...@struts.apache.org - To unsubscribe, e-mail: user-unsubscr...@struts.apache.org For additional commands, e-mail: user-h...@struts.apache.org
Re: deserializable ActionSupport
2009/10/28 Musachy Barroso musa...@gmail.com: The people who made that decision are by now long gone, and I can't think of any good reason myself. As I know, ActionSupport is a part of XWork (common purpose action framework) that is used by example in WebLogic 8.1 to manage multiple tasks with WorkManager - they can be queued and distributed over the network - maybe that was the reason Regards -- Lukasz http://www.lenart.org.pl/ http://dailylog.lenart.org.pl/ - To unsubscribe, e-mail: user-unsubscr...@struts.apache.org For additional commands, e-mail: user-h...@struts.apache.org
[S2] Jsp not loading bean from superclass static method
Hello:
I jut upgraded from Struts 2.0.14 to 2.1.8
and noticed I am now getting this error:
SEVERE: Servlet.service() for servlet jsp threw exception
The requested list key 'accountManagerMap' could not be resolved as a
collection/array/map/enumeration/iterator type. Example: people or
people.{name}
I have this in my JSP code:
s:select label=Account Manager
key=marketingContact.accountManager.emailAddress
list=accountManagerMap/
The method getAccountManagerMap is in a superclass and is static.
This worked fine in 2.0.14, did something change in 2.1.8?
Thanks,
Neil
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Re: [S2] Jsp not loading bean from superclass static method
You have to define constant as below in struts.xml or in struts.properties - from some version is set to false by default struts.ognl.allowStaticMethodAccess=true Regards -- Lukasz http://www.lenart.org.pl/ http://dailylog.lenart.org.pl/ - To unsubscribe, e-mail: user-unsubscr...@struts.apache.org For additional commands, e-mail: user-h...@struts.apache.org
RE: [S2] Jsp not loading bean from superclass static method
Lukasz: struts.ognl.allowStaticMethodAccess=true I will try that. Neil -- Neil Aggarwal, (281)846-8957, http://www.JAMMConsulting.com CentOS 5.4 KVM VPS $55/mo, no setup fee, no contract, dedicated 64bit CPU 1GB dedicated RAM, 40GB RAID storage, 500GB/mo premium BW, Zero downtime - To unsubscribe, e-mail: user-unsubscr...@struts.apache.org For additional commands, e-mail: user-h...@struts.apache.org
Re: Convention Plugin - Setting dynamic parameter values
On Friday 16 October 2009 19:29:05 Musachy Barroso wrote:
when you declare a result using annotations, the param values can
contain OGNL values, just like in xml,:
@Action(value=/different/url,
result...@result(name=success, type=httpheader,
params={status, %{status}, errorMessage, %{error}})}
)
public String execute() {
return SUCCESS;
}
Is this true only for result annotations, or does this apply to other
annotations as well?
I'm tying to define a stream result using the convention plugin. The
values for the contentLength and inputName require dynamic values.
For future reference. providing a getContentLength() and getInputName() method
works as well.
Regards
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Getting result of JSP before sending to client
Hi
I am wondering is there a way in Struts2 to get the result of JSP before
returning the composed HTML back to client?
for example
public String execute() {
...do my logic and prepare my data
...then using the data, compose a HTML file from existing jsp
... then i need to save the HTML file somewhere
...then
return SUCCESS; -- maybe to same HTML or other JSP
}
Thanks
Re: read the source code
Thank you very much for your reply! I have read some code of xwork.however,i am a littel lazy,so i want to find a book to introduce . now that there is no book,I'll follow what you said. Wes Wannemacher wrote: As far as I know, there are no books that specifically analyze the source code for Struts 2. I would suggest starting by reading the source code to Xwork. To really get a handle on what is going on, first try to get a solid understanding of the command pattern design pattern. Then, take a look at the xwork source to see how it is implemented there. Once you feel comfortable at that level, take a good look at the Servlet and JSP specifications. Then you can take a look at the source for Struts 2. It also wouldn't hurt to take a look at Google Guice. Although we aren't using Guice, we branched it early on and have been using it for internal dependency injection (both in Xwork and in Struts 2). As you get further along, feel free to post questions on the d...@struts.apache.org list. -Wes On Wed, Oct 28, 2009 at 3:09 AM, mark lu liujuns...@ygsoft.com wrote: I want to read struts2's source code,but i found it's too complicated. so,i want to find a book that analysis the soure code. who can give me some suggestions?recommend some books to me? thanks very much!! -- View this message in context: http://www.nabble.com/read-the-source-code-tp26090230p26090230.html Sent from the Struts - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: user-unsubscr...@struts.apache.org For additional commands, e-mail: user-h...@struts.apache.org -- Wes Wannemacher Head Engineer, WanTii, Inc. Need Training? Struts, Spring, Maven, Tomcat... Ask me for a quote! - To unsubscribe, e-mail: user-unsubscr...@struts.apache.org For additional commands, e-mail: user-h...@struts.apache.org -- View this message in context: http://www.nabble.com/read-the-source-code-tp26090230p26105034.html Sent from the Struts - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: user-unsubscr...@struts.apache.org For additional commands, e-mail: user-h...@struts.apache.org
Re: read the source code
On Wed, Oct 28, 2009 at 6:50 PM, mark lu liujuns...@ygsoft.com wrote: Thank you very much for your reply! I have read some code of xwork.however,i am a littel lazy,so i want to find a book to introduce . now that there is no book,I'll follow what you said. It would be great if you could write up your experience as you explore the source code. Maybe you'll write that book you're looking for, :) or a series of blog posts would be fabulous. -- Wendy - To unsubscribe, e-mail: user-unsubscr...@struts.apache.org For additional commands, e-mail: user-h...@struts.apache.org
