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From Martin Gainty <>
Subject RE: Struts Action Issue
Date Thu, 09 Apr 2009 15:39:13 GMT

agree with Rommel 
a FieldValidationInterceptor would accomplish this objective
HINT place validation logic in expression validator e.g.
<param name="expression"><![CDATA[#myField <> '']]></param

Unless you're using Hibernate or iBatis (or any ORM which will create SQL Statements) I would
strongly suggest your DBA to place Triggers to validate Data inserts before pushing into DB..(Once
the aberrant character is in your DB there is no extracting)

I would also suggest incorporating jsp precompile jsp's into your build cycle to catch
any misconfigs in tld's
here is one courtesy of Glassfish
--assumes AS_INSTALL is set to GlassfishDefaultInstallationFolder
--assumes AS_JAVA is set to GlassfishJavaDefaultInstallationFolder
--assumes AS_ANT_LIB is set to GlassfishAntLibrary

@echo off
REM Copyright 1997-2007 Sun Microsystems, Inc. All Rights Reserved.
REM Use is subject to license terms.
call "%AS_INSTALL%\config\asenv.bat"
"%AS_JAVA%\bin\java" -cp "%AS_INSTALL%\lib\javaee.jar;%AS_INSTALL%\lib\appserv-ext.jar;%AS_INSTALL%\lib\appserv-rt.jar;%AS_ANT_LIB%\ant.jar;%AS_ANT_LIB%\ant-launcher.jar;%AS_INSTALL%\lib\appserv-jstl.jar;%AS_INSTALL%\lib\jsf-api.jar;%AS_INSTALL%\lib\jsf-impl.jar;%AS_JAVA%\lib\tools.jar;%AS_INSTALL%\lib"
org.apache.jasper.JspC -schemas "/schemas/" -dtds "/dtds/" %*

Viel Gluck/Bon Chance/GoodLuck
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> Date: Thu, 9 Apr 2009 07:23:42 -0700
> From:
> Subject: Re: Struts Action Issue
> To:
> CC:
> Riya,
> I'm sure that if you trace the request submission from JSP to your Action class
> by debugging it step by step you will find where the culprit will be. I had one experience
> before that took me hours to figure out whats wrong in our JSP page where its not showing
> block of data. After debugging step by step, the logic that checks for the string to
show the block of
> data had a trailing empty character. That string was saved in the database with the trailing
space char.
> and when we pulled it and check for the matching string, our JSP was screwed up. So just
a note
> always trim the data(String) you push to your database.
> Goodluck on the debugging spree :).
> Rommel
> ________________________________
> From: Muthu Velappan <>
> To: Struts Users Mailing List <>
> Sent: Thursday, April 9, 2009 5:49:38 AM
> Subject: RE: Struts Action Issue
> Out of curiosity, I gave the same value in my application and tested, I got
> the exact junk back in my action not even a truncated one. So, please check
> whether ur action bypasses only this kind of string or even valid string
> like "test" or "sample". If it doesn't show valid string then there is
> problem with view file field name and action variable name. If valid strings
> are working fine and only this kind of string seems to be a problem then
> please generate the issue in a small testcase and send it across. 
> Thanks,
> Muthu
> -----Original Message-----
> From: riya [] 
> Sent: Thursday, April 09, 2009 2:33 AM
> To:
> Subject: Struts Action Issue
> Hi, 
> Recently I observed that if in JSP input text I have entered special
> characters, lets say: 
> displayIDNumber:  #$!@#%$!#$%!(*)&*()*(&
> In the action I get displayIDNumber as "" i.e empty string. 
> Nowhere in the code we are explicitly emptying the string whenever there are
> special characters in the input string. 
> I puzzled. Can someone please clarify? 
> Thanks in advance!!
> -- 
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