Asad Habib wrote:
Has anyone successfully used declarative exception handling with Struts?
For some reason, my application always forwards to the input attribute
of the action element instead of the path element of the exception
element as defined in my struts configuration file. I have confirmed
that the error is being generated by the validateRequired method of the
Struts Validator by using <html:errors> to flush the errors on the page
that I am forwarded to (login.jsp in this case). However, I am never
forwarded to 'loginError.jsp'. Below is my 'struts-config.xml'. Any help
would be appreciated. Thanks.
I think what's happening here is that the Exception is being thrown
before the action is executed, i.e., during the validateRequired method
of DynaValidatorForm as you say.
Think the exception element that you've indicated applies only to
exceptions thrown from Action.execute. The validateRequired method
occurs earlier in the request processing than does Action.execute. If
your curious, you can look at ActionServlet and RequestProcessor source
for more info.
-Dave
- Asad
<struts-config>
<form-beans>
<form-bean name="loginForm"
type="org.apache.struts.validator.DynaValidatorForm">
<form-property name="userName" type="java.lang.String" />
<form-property name="userPassword" type="java.lang.String" />
</form-bean>
</form-beans>
<action-mappings>
<action path="/login" type="actions.LoginAction" name="loginForm"
input="/login.jsp" validate="true">
<exception key="error.login.required" path="/loginError.jsp"
type="org.apache.struts.util.ModuleException" />
</action>
</action-mappings>
<message-resources parameter="MyResources" null="false" />
<plug-in className="org.apache.struts.validator.ValidatorPlugIn">
<set-property property="pathnames"
value="/WEB-INF/validator-rules.xml, /WEB-INF/validator.xml" />
</plug-in>
</struts-config>
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