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Posted to user@struts.apache.org by David Copeland <da...@gmail.com> on 2007/08/15 22:22:18 UTC
Struts2 Annotation Based Validation
I'm a Struts newb and am trying to get up to speed on Struts 2.
The scant documentation is throwing me a bit; I'm trying to do
everything annotation-based, and for Validation, it seems to be simply
not working at all.
Per the docs, I have tagged my action class with @Validator and tagged
my setXXX method with @RequiredFieldValidator.
My form's JSP contains <s:fielderror><s:param>XXX</s:param></s:fielderror>.
When I submit the form with no value for XXX, my execute method
executes as it would before I added the validation stuff.
I would really like to avoid XML files, but it seems that if I'm using
annotations, everything needs to be done that way.
Any ideas on where to look?
Dave
I've read: http://struts.apache.org/2.x/docs/validation-annotation.html
and some other resources, none of which are clear to me.
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Re: Struts2 Annotation Based Validation
Posted by David Copeland <da...@gmail.com>.
OK, that worked, in that the validators ran and error messages were
written to the log, however my execute method still executed and
nothing happened on the UI with the error message tags.
I guess the larger question here is, if I'm trying to learn Struts, is
the best strategy to dig into Struts 1, which is presumably better
documented, and wait for Struts 2 to gain more of a foothold?
Dave
On 8/16/07, j alex <st...@gmail.com> wrote:
> try changing @RequiredFieldValidator to @RequiredStringValidator
>
> the RequiredFieldValidator only looks for "not null" and even if the
> field is not entered, but is present on the form, it'll be populated
> with "" (empty) and not a java null.
>
> -Joseph
>
> On 8/16/07, David Copeland <da...@gmail.com> wrote:
> > Here's my struts.xml
> >
> > <struts>
> > <package name="noshame" extends="struts-default">
> > <action name="Register">
> > <result>/Register.jsp</result>
> > </action>
> > </package>
> > </struts>
> >
> > my web.xml:
> >
> > <web-app>
> > <display-name>NoShame</display-name>
> > <filter>
> > <filter-name>struts2</filter-name>
> > <filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
> > <init-param>
> > <param-name>actionPackages</param-name>
> >
> > <param-value>com.naildrivin5.applications.noshame.client</param-value>
> > </init-param>
> > </filter>
> >
> > <filter-mapping>
> > <filter-name>struts2</filter-name>
> > <url-pattern>/*</url-pattern>
> > </filter-mapping>
> > </web-app>
> >
> > My JSP:
> >
> > <%@ taglib prefix="s" uri="/struts-tags" %>
> > <html>
> > <body>
> > <s:form id="register" action="registerNew">
> > <s:fielderror><s:param>name</s:param></s:fielderror><s:textfield
> > required="true" name="name" label="Your Name" />
> > <s:textfield required="true" name="email" label="Email Address" />
> > <s:password required="true" name="password" label="Password" />
> > <s:password required="true" name="passwordConfirm" label="Confirm
> > Password" />
> > <input class="submitButton" type=submit>
> > </s:form>
> > </body>
> > </html>
> >
> > My Action class:
> >
> > @Results({
> > @Result(name="success", value="/Success.jsp"),
> > @Result(name="error", value="/Register.jsp")
> > })
> > @Validation()
> > public class RegisterNewAction
> > {
> > public String execute() throws Exception
> > {
> > // omittied boring logic
> > return "success";
> > }
> >
> > private String itsName;
> > @RequiredFieldValidator(type = ValidatorType.FIELD, message =
> > "Name is required")
> > public void setName(String name) { itsName = name; }
> > public String getName() { return itsName; }
> >
> > // omitted other accecssors
> > }
> >
> > The docs for doing validation via XML indicate setting up some sort of
> > interceptor (but there is no real instruction for that, either), so is
> > there some annotation way I have to do that?
> >
> > On 8/15/07, Laurie Harper <la...@holoweb.net> wrote:
> > > David Copeland wrote:
> > > > I'm a Struts newb and am trying to get up to speed on Struts 2.
> > > >
> > > > The scant documentation is throwing me a bit; I'm trying to do
> > > > everything annotation-based, and for Validation, it seems to be simply
> > > > not working at all.
> > > >
> > > > Per the docs, I have tagged my action class with @Validator and tagged
> > > > my setXXX method with @RequiredFieldValidator.
> > > >
> > > > My form's JSP contains <s:fielderror><s:param>XXX</s:param></s:fielderror>.
> > > >
> > > > When I submit the form with no value for XXX, my execute method
> > > > executes as it would before I added the validation stuff.
> > > >
> > > > I would really like to avoid XML files, but it seems that if I'm using
> > > > annotations, everything needs to be done that way.
> > >
> > > I'm not sure what that last paragraph means; you can certainly use XML
> > > validation for one action and annotations in another. I'm not sure to
> > > what extent it's possible to mix XML and annotation based validation in
> > > the *same* action, but there's certainly no requirement to pick one or
> > > the other for the application as a whole.
> > >
> > > It may help if you post the relevant parts of your config, JSP and
> > > action code. There are several 'moving parts' involved in making
> > > validation work, and it's hard to guess where the problem is without
> > > seeing what you have done.
> > >
> > > L.
> > >
> > >
> > > ---------------------------------------------------------------------
> > > 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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[OT] Re: Struts2 Annotation Based Validation
Posted by Dave Newton <ne...@yahoo.com>.
--- meisam sarabadani wrote:
> can somebody tell me why we need the struts.xml and
> build.xml or web.xml? what are their duties ?
Google can tell you.
struts.xml is the usual name for the Struts 2
configuration file. build.xml is for Apache Ant.
web.xml is for configuring your web application.
d.
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Re: Struts2 Annotation Based Validation
Posted by meisam sarabadani <me...@gmail.com>.
can somebody tell me why we need the struts.xml and build.xml or
web.xml?what are their duties ?
On 8/16/07, j alex <st...@gmail.com> wrote:
>
> try changing @RequiredFieldValidator to @RequiredStringValidator
>
> the RequiredFieldValidator only looks for "not null" and even if the
> field is not entered, but is present on the form, it'll be populated
> with "" (empty) and not a java null.
>
> -Joseph
>
> On 8/16/07, David Copeland <da...@gmail.com> wrote:
> > Here's my struts.xml
> >
> > <struts>
> > <package name="noshame" extends="struts-default">
> > <action name="Register">
> > <result>/Register.jsp</result>
> > </action>
> > </package>
> > </struts>
> >
> > my web.xml:
> >
> > <web-app>
> > <display-name>NoShame</display-name>
> > <filter>
> > <filter-name>struts2</filter-name>
> > <filter-class>org.apache.struts2.dispatcher.FilterDispatcher
> </filter-class>
> > <init-param>
> > <param-name>actionPackages</param-name>
> >
> > <param-value>com.naildrivin5.applications.noshame.client</param-value>
> > </init-param>
> > </filter>
> >
> > <filter-mapping>
> > <filter-name>struts2</filter-name>
> > <url-pattern>/*</url-pattern>
> > </filter-mapping>
> > </web-app>
> >
> > My JSP:
> >
> > <%@ taglib prefix="s" uri="/struts-tags" %>
> > <html>
> > <body>
> > <s:form id="register" action="registerNew">
> > <s:fielderror><s:param>name</s:param></s:fielderror><s:textfield
> > required="true" name="name" label="Your Name" />
> > <s:textfield required="true" name="email" label="Email Address" />
> > <s:password required="true" name="password" label="Password" />
> > <s:password required="true" name="passwordConfirm" label="Confirm
> > Password" />
> > <input class="submitButton" type=submit>
> > </s:form>
> > </body>
> > </html>
> >
> > My Action class:
> >
> > @Results({
> > @Result(name="success", value="/Success.jsp"),
> > @Result(name="error", value="/Register.jsp")
> > })
> > @Validation()
> > public class RegisterNewAction
> > {
> > public String execute() throws Exception
> > {
> > // omittied boring logic
> > return "success";
> > }
> >
> > private String itsName;
> > @RequiredFieldValidator(type = ValidatorType.FIELD, message =
> > "Name is required")
> > public void setName(String name) { itsName = name; }
> > public String getName() { return itsName; }
> >
> > // omitted other accecssors
> > }
> >
> > The docs for doing validation via XML indicate setting up some sort of
> > interceptor (but there is no real instruction for that, either), so is
> > there some annotation way I have to do that?
> >
> > On 8/15/07, Laurie Harper <la...@holoweb.net> wrote:
> > > David Copeland wrote:
> > > > I'm a Struts newb and am trying to get up to speed on Struts 2.
> > > >
> > > > The scant documentation is throwing me a bit; I'm trying to do
> > > > everything annotation-based, and for Validation, it seems to be
> simply
> > > > not working at all.
> > > >
> > > > Per the docs, I have tagged my action class with @Validator and
> tagged
> > > > my setXXX method with @RequiredFieldValidator.
> > > >
> > > > My form's JSP contains
> <s:fielderror><s:param>XXX</s:param></s:fielderror>.
> > > >
> > > > When I submit the form with no value for XXX, my execute method
> > > > executes as it would before I added the validation stuff.
> > > >
> > > > I would really like to avoid XML files, but it seems that if I'm
> using
> > > > annotations, everything needs to be done that way.
> > >
> > > I'm not sure what that last paragraph means; you can certainly use XML
> > > validation for one action and annotations in another. I'm not sure to
> > > what extent it's possible to mix XML and annotation based validation
> in
> > > the *same* action, but there's certainly no requirement to pick one or
> > > the other for the application as a whole.
> > >
> > > It may help if you post the relevant parts of your config, JSP and
> > > action code. There are several 'moving parts' involved in making
> > > validation work, and it's hard to guess where the problem is without
> > > seeing what you have done.
> > >
> > > L.
> > >
> > >
> > > ---------------------------------------------------------------------
> > > 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
>
>
--
Appreciated much,
Meisam Sarabadani
IBM Student Ambassador
Vice president II, IT Society
Multimedia University, Cyberjaya Capmus
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Re: Struts2 Annotation Based Validation
Posted by j alex <st...@gmail.com>.
try changing @RequiredFieldValidator to @RequiredStringValidator
the RequiredFieldValidator only looks for "not null" and even if the
field is not entered, but is present on the form, it'll be populated
with "" (empty) and not a java null.
-Joseph
On 8/16/07, David Copeland <da...@gmail.com> wrote:
> Here's my struts.xml
>
> <struts>
> <package name="noshame" extends="struts-default">
> <action name="Register">
> <result>/Register.jsp</result>
> </action>
> </package>
> </struts>
>
> my web.xml:
>
> <web-app>
> <display-name>NoShame</display-name>
> <filter>
> <filter-name>struts2</filter-name>
> <filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
> <init-param>
> <param-name>actionPackages</param-name>
>
> <param-value>com.naildrivin5.applications.noshame.client</param-value>
> </init-param>
> </filter>
>
> <filter-mapping>
> <filter-name>struts2</filter-name>
> <url-pattern>/*</url-pattern>
> </filter-mapping>
> </web-app>
>
> My JSP:
>
> <%@ taglib prefix="s" uri="/struts-tags" %>
> <html>
> <body>
> <s:form id="register" action="registerNew">
> <s:fielderror><s:param>name</s:param></s:fielderror><s:textfield
> required="true" name="name" label="Your Name" />
> <s:textfield required="true" name="email" label="Email Address" />
> <s:password required="true" name="password" label="Password" />
> <s:password required="true" name="passwordConfirm" label="Confirm
> Password" />
> <input class="submitButton" type=submit>
> </s:form>
> </body>
> </html>
>
> My Action class:
>
> @Results({
> @Result(name="success", value="/Success.jsp"),
> @Result(name="error", value="/Register.jsp")
> })
> @Validation()
> public class RegisterNewAction
> {
> public String execute() throws Exception
> {
> // omittied boring logic
> return "success";
> }
>
> private String itsName;
> @RequiredFieldValidator(type = ValidatorType.FIELD, message =
> "Name is required")
> public void setName(String name) { itsName = name; }
> public String getName() { return itsName; }
>
> // omitted other accecssors
> }
>
> The docs for doing validation via XML indicate setting up some sort of
> interceptor (but there is no real instruction for that, either), so is
> there some annotation way I have to do that?
>
> On 8/15/07, Laurie Harper <la...@holoweb.net> wrote:
> > David Copeland wrote:
> > > I'm a Struts newb and am trying to get up to speed on Struts 2.
> > >
> > > The scant documentation is throwing me a bit; I'm trying to do
> > > everything annotation-based, and for Validation, it seems to be simply
> > > not working at all.
> > >
> > > Per the docs, I have tagged my action class with @Validator and tagged
> > > my setXXX method with @RequiredFieldValidator.
> > >
> > > My form's JSP contains <s:fielderror><s:param>XXX</s:param></s:fielderror>.
> > >
> > > When I submit the form with no value for XXX, my execute method
> > > executes as it would before I added the validation stuff.
> > >
> > > I would really like to avoid XML files, but it seems that if I'm using
> > > annotations, everything needs to be done that way.
> >
> > I'm not sure what that last paragraph means; you can certainly use XML
> > validation for one action and annotations in another. I'm not sure to
> > what extent it's possible to mix XML and annotation based validation in
> > the *same* action, but there's certainly no requirement to pick one or
> > the other for the application as a whole.
> >
> > It may help if you post the relevant parts of your config, JSP and
> > action code. There are several 'moving parts' involved in making
> > validation work, and it's hard to guess where the problem is without
> > seeing what you have done.
> >
> > L.
> >
> >
> > ---------------------------------------------------------------------
> > 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: Struts2 Annotation Based Validation
Posted by David Copeland <da...@gmail.com>.
Here's my struts.xml
<struts>
<package name="noshame" extends="struts-default">
<action name="Register">
<result>/Register.jsp</result>
</action>
</package>
</struts>
my web.xml:
<web-app>
<display-name>NoShame</display-name>
<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
<init-param>
<param-name>actionPackages</param-name>
<param-value>com.naildrivin5.applications.noshame.client</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
My JSP:
<%@ taglib prefix="s" uri="/struts-tags" %>
<html>
<body>
<s:form id="register" action="registerNew">
<s:fielderror><s:param>name</s:param></s:fielderror><s:textfield
required="true" name="name" label="Your Name" />
<s:textfield required="true" name="email" label="Email Address" />
<s:password required="true" name="password" label="Password" />
<s:password required="true" name="passwordConfirm" label="Confirm
Password" />
<input class="submitButton" type=submit>
</s:form>
</body>
</html>
My Action class:
@Results({
@Result(name="success", value="/Success.jsp"),
@Result(name="error", value="/Register.jsp")
})
@Validation()
public class RegisterNewAction
{
public String execute() throws Exception
{
// omittied boring logic
return "success";
}
private String itsName;
@RequiredFieldValidator(type = ValidatorType.FIELD, message =
"Name is required")
public void setName(String name) { itsName = name; }
public String getName() { return itsName; }
// omitted other accecssors
}
The docs for doing validation via XML indicate setting up some sort of
interceptor (but there is no real instruction for that, either), so is
there some annotation way I have to do that?
On 8/15/07, Laurie Harper <la...@holoweb.net> wrote:
> David Copeland wrote:
> > I'm a Struts newb and am trying to get up to speed on Struts 2.
> >
> > The scant documentation is throwing me a bit; I'm trying to do
> > everything annotation-based, and for Validation, it seems to be simply
> > not working at all.
> >
> > Per the docs, I have tagged my action class with @Validator and tagged
> > my setXXX method with @RequiredFieldValidator.
> >
> > My form's JSP contains <s:fielderror><s:param>XXX</s:param></s:fielderror>.
> >
> > When I submit the form with no value for XXX, my execute method
> > executes as it would before I added the validation stuff.
> >
> > I would really like to avoid XML files, but it seems that if I'm using
> > annotations, everything needs to be done that way.
>
> I'm not sure what that last paragraph means; you can certainly use XML
> validation for one action and annotations in another. I'm not sure to
> what extent it's possible to mix XML and annotation based validation in
> the *same* action, but there's certainly no requirement to pick one or
> the other for the application as a whole.
>
> It may help if you post the relevant parts of your config, JSP and
> action code. There are several 'moving parts' involved in making
> validation work, and it's hard to guess where the problem is without
> seeing what you have done.
>
> L.
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> For additional commands, e-mail: user-help@struts.apache.org
>
>
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Re: Struts2 Annotation Based Validation
Posted by j alex <st...@gmail.com>.
Dave,
How do we use the action-alias XML approach if we've the same alias
but different methods on the same action ?
ex :
<action name="abc" class="com.mysite.myAction" />
say myAction has methodA(), methodB() etc. which are invoked using
different submit buttons in the jsp
<s:submit value="button1" method="methodA"/>
<s:submit value="button1" method="methodB"/>
In this case, we could have myAction-abc-validation.xml , but how will
it differentiate b/n methodA and methodB?
i tried myAction-methodA-validation.xml ; but it didn't seem to work.
Thanks,
Joseph
On 8/15/07, Dave Newton <ne...@yahoo.com> wrote:
> --- j alex <st...@gmail.com> wrote:
> > ex : if an Action has multiple methods and only
> > certain fields are tied to each method, we can
> > bunch together validations for each method
> > using annotations, but this is not possible using
> > XML
>
> You can create validation XML files on an action-alias
> basis.
>
> d.
>
>
>
>
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Re: Struts2 Annotation Based Validation
Posted by Dave Newton <ne...@yahoo.com>.
--- j alex <st...@gmail.com> wrote:
> ex : if an Action has multiple methods and only
> certain fields are tied to each method, we can
> bunch together validations for each method
> using annotations, but this is not possible using
> XML
You can create validation XML files on an action-alias
basis.
d.
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Re: Struts2 Annotation Based Validation
Posted by j alex <st...@gmail.com>.
I think annotations give you more flexibility than XML .
ex : if an Action has multiple methods and only certain fields are
tied to each method, we can bunch together validations for each method
using annotations, but this is not possible using XML
On 8/15/07, Laurie Harper <la...@holoweb.net> wrote:
> David Copeland wrote:
> > I'm a Struts newb and am trying to get up to speed on Struts 2.
> >
> > The scant documentation is throwing me a bit; I'm trying to do
> > everything annotation-based, and for Validation, it seems to be simply
> > not working at all.
> >
> > Per the docs, I have tagged my action class with @Validator and tagged
> > my setXXX method with @RequiredFieldValidator.
> >
> > My form's JSP contains <s:fielderror><s:param>XXX</s:param></s:fielderror>.
> >
> > When I submit the form with no value for XXX, my execute method
> > executes as it would before I added the validation stuff.
> >
> > I would really like to avoid XML files, but it seems that if I'm using
> > annotations, everything needs to be done that way.
>
> I'm not sure what that last paragraph means; you can certainly use XML
> validation for one action and annotations in another. I'm not sure to
> what extent it's possible to mix XML and annotation based validation in
> the *same* action, but there's certainly no requirement to pick one or
> the other for the application as a whole.
>
> It may help if you post the relevant parts of your config, JSP and
> action code. There are several 'moving parts' involved in making
> validation work, and it's hard to guess where the problem is without
> seeing what you have done.
>
> L.
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> For additional commands, e-mail: user-help@struts.apache.org
>
>
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Re: Struts2 Annotation Based Validation
Posted by Laurie Harper <la...@holoweb.net>.
David Copeland wrote:
> I'm a Struts newb and am trying to get up to speed on Struts 2.
>
> The scant documentation is throwing me a bit; I'm trying to do
> everything annotation-based, and for Validation, it seems to be simply
> not working at all.
>
> Per the docs, I have tagged my action class with @Validator and tagged
> my setXXX method with @RequiredFieldValidator.
>
> My form's JSP contains <s:fielderror><s:param>XXX</s:param></s:fielderror>.
>
> When I submit the form with no value for XXX, my execute method
> executes as it would before I added the validation stuff.
>
> I would really like to avoid XML files, but it seems that if I'm using
> annotations, everything needs to be done that way.
I'm not sure what that last paragraph means; you can certainly use XML
validation for one action and annotations in another. I'm not sure to
what extent it's possible to mix XML and annotation based validation in
the *same* action, but there's certainly no requirement to pick one or
the other for the application as a whole.
It may help if you post the relevant parts of your config, JSP and
action code. There are several 'moving parts' involved in making
validation work, and it's hard to guess where the problem is without
seeing what you have done.
L.
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