Application.cfm Error Handling
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ColdFusion I’ve done more than a few posts recently about error handling and robust exception information, so I thought I’d write up one blog entry
Coldfusion Show Error Message
that can serve as a nice guide for folks to bookmark. coldfusion cferror example By using “Complete” in the title, I’ve also virtually assured that I will forget something critical, so
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please, send suggestions for what I’ve missed. Let’s get started. What is the point of this guide? Unless you are a perfect code, there is a chance that your coldfusion site-wide error handler ColdFusion application will have errors in it. The question is - what are you doing with your errors? What was the last error that occurred on your site? If I asked you how many errors your site threw yesterday, could you answer with 100% complete accuracy? I’d be willing to bet most people would say no. Shoot, I coldfusion display error message know I couldn’t answer that. So what do we do to help resolve this issue? The first thing I want you to do is to create an error. Create a new CFM file named errortest.cfm. Insert one line into it:
Errors With ColdFusion CFError By Ben Nadel on August 29, 2007 Tags: Ask Ben, ColdFusion A tutorial on how to get ANY ColdFusion error emailed to you automatically and a friendly message displayed
Cferror
to the visitor would be great, I found one on EasyCFM.com but doesn't coldfusion onerror actually work.Having looked at the EasyCFM tutorial, it looks like you want to know about how to use ColdFusion's CFError tag.
Coldfusion Cftry Example
Before I go into this, I have to just say that if you are using ColdFusion 7 or greater, I would recommend moving to the Application.cfc model and use the OnError() application event method handler; https://www.raymondcamden.com/2007/12/05/the-complete-guide-to-adding-error-handling-to-your-coldfusion-application/ it just provides a nice, clean way of doing this. But that is a whole other discussion. For now, I will just cover the use of the ColdFusion CFError tag and how it can be used for error handling. To start off with, we have to put the ColdFusion CFError tag on a template that will be executed for every page request such that every new page request will know http://www.bennadel.com/blog/932-ask-ben-handling-errors-with-coldfusion-cferror.htm how to properly handle errors. The obvious choice is to use the Application.cfm template:
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world as long as the Muse you have heard of Mary Jo Sminkey. Mary Jo built a popular ColdFusion ecommerce platform called CFWebstore. She has vast experience in ColdFusion and a seemingly boundless fountain of energy. Her eclectic interests range from technology to baking to dog training. As far as CF Webtools and the Muse can tell, Mary Jo excels at everything she does. We frankly suspect she is actually twins or triplets pretending to be only one person :) The following article is by Mary Jo and details her approach to application specific error handling. She has a detailed and thorough knowledge of the topic. Using this approach she has been able to reduce the number of errors on a very high traffic E-commerce site to practically nil. In the first of 2 articles MJ (as we call her with great affection) details the structure and usage of the handler. Building a Robust Error Handler (by Mary Jo Sminkey) Let's face it, sometimes we put less effort into the error handler than into the rest of our code. We might put something in place that throws up a "user friendly" page, and maybe email a dump of the catch or error structure, but when the site goes live, and we are deluged with errors due to search bots, hack attempts and poorly coded pages we turn it off or send all those emails to a seldom-visited mailbox. Sometimes we implement error handling as cftry/cfcatch blocks that do little more than preventing errors from being thrown, instead of helping us track down the issue. I look at the error handler as a way to help make a site as bug-free as possible. By having it email me as much information as possible about errors, I troubleshoot, fix and patch, and get to a point where errors are the exception rather than the rule. In this article, we'll look at building a single-page, comprehensive error handler. In a future article, we'll look at integrating that error handler with the open source bug tracker BugLogHQ. Before we begin with our error handler let's talk about our error handling strategy. Error Handling Strategy Obviously global error handling is a last ditch attempt to