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From hezjing <hezj...@gmail.com>
Subject Re: [S2] ParametersInterceptor: Error setting expression
Date Tue, 05 Feb 2008 07:28:09 GMT
Hmmm ... my login.jsp now looks like this,

<s:form action="index" method="post" validate="true">
  <s:textfield name="username" key="user.username" />
  <s:password name="password" key="user.password" />
  <s:submit name="login" key="button.login" />
</s:form>


When the login button is pressed, the following exceptions are shown
in the console,

com.opensymphony.xwork2.interceptor.ParametersInterceptor setParameters
SEVERE: ParametersInterceptor - [setParameters]: Unexpected Exception
caught setting 'login' on 'class
com.opensymphony.xwork2.ActionSupport: Error setting expression
'login' with value '[Ljava.lang.String;@223be4'

com.opensymphony.xwork2.interceptor.ParametersInterceptor setParameters
SEVERE: ParametersInterceptor - [setParameters]: Unexpected Exception
caught setting 'password' on 'class
com.opensymphony.xwork2.ActionSupport: Error setting expression
'password' with value '[Ljava.lang.String;@18a270a'

com.opensymphony.xwork2.interceptor.ParametersInterceptor setParameters
SEVERE: ParametersInterceptor - [setParameters]: Unexpected Exception
caught setting 'username' on 'class
com.opensymphony.xwork2.ActionSupport: Error setting expression
'username' with value '[Ljava.lang.String;@10936a1'




On 2/5/08, Jeromy Evans <jeromy.evans@blueskyminds.com.au> wrote:
> It depends what your interceptor is trying to do...
> At the moment, I still think params is trying to call
> getButton().setLogin(val) on your ACTION (prior to execution of your
> login interceptor).
> I presume your interceptor is going to check the params or session and
> redirect if not authenticated, which is fine, but with your stack the
> params interceptor will attempt to write to the ACTION first.
>
> I still suspect your JSP/html includes a field with NAME "button.login"
> and params is throwing the exception due to getButton().  You can test
> my theory by giving the field a different name (eg. key="button.login"
> name="login") that won't cause an error.
>
> hezjing wrote:
> > The "button.login" is a key in i18n properties file, and it is suppose
> > to retrieve the label for a button.
> >
> > I suspect this problem could be the interceptor statck I configured,
> >
> >         <interceptor-ref name="servlet-config" />
> >         <interceptor-ref name="params" />
> >         <interceptor-ref name="login" /> // my interceptor
> >         <interceptor-ref name="prepare" />
> >         <interceptor-ref name="chain" />
> >         <interceptor-ref name="model-driven" />
> >         <interceptor-ref name="fileUpload" />
> >         <interceptor-ref name="static-params" />
> >         <interceptor-ref name="params" />
> >         <interceptor-ref name="conversionError" />
> >         <interceptor-ref name="validation" />
> >         <interceptor-ref name="workflow" />
> >
> >
> > Is it OK if my login interceptor is configured after the params interceptor?
> >
> >
> > On 2/5/08, Jeromy Evans <jeromy.evans@blueskyminds.com.au> wrote:
> >
> >> A param called "button.login" means the ParametersInterceptor has to
> >> call getButton().setLogin(val).
> >>
> >> If you don't have a getButton() method, or getButton() returns null, an
> >> exception like this occurs while trying to set the parameter.
> >>
> >> hezjing wrote:
> >>
> >>> Hi
> >>>
> >>> I'm trying to create a login interceptor.
> >>>
> >>> When a login form is submitted, I got the following exception:
> >>>
> >>> com.opensymphony.xwork2.interceptor.ParametersInterceptor setParameters
> >>> SEVERE: ParametersInterceptor - [setParameters]: Unexpected Exception
> >>> caught setting 'button.login' on 'class
> >>> com.opensymphony.xwork2.ActionSupport: Error setting expression
> >>> 'button.login' with value
> >>> '[Ljava.lang.String;@2d4c7e'
> >>>
> >>>
> >>> What does this exception means?
> >>>
> >>>
> >>>
> >>>
> >>>
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> >>
> >>
> >>
> >
> >
> >
>
>
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>


-- 

Hez

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