Coldfusion 404 Error Handler
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Using ColdFusion to Handle 404 Errors (Page Not Found) On Development Server By Ben Nadel on June 29, 2006 Tags: ColdFusion Handling 404 errors can be tricky no matter what. On your live, production server, you can set up coldfusion catch 404 error custom 404 handling on a site-by-site basis via IIS custom error templates. However, for many coldfusion 8 404 error of us, this is trickier on the development server where there are no site. Its just one web server with many sub directories,
Coldfusion 10 404 Error
none of which are usually virtual sites. To remedy this situation, I have developed a 404 error handler that is defined at the root of the developmental web server. This 404 error handler catches 404 errors and attempts
Coldfusion 10 Custom 404
to forward the errors to individual "site" error handlers in an attempt to mimic 404 error handling on a live site. This setup makes a few assumptions:Your 404 errors are handled by a ColdFusion template named "cferror.cfm"Your cferror.cfm template is located either in the root of the site (a sub directory on the development server) or at least that it is in the same directory or a parent directory of the requested non-existent page.The system works by coldfusion 10 iis 404 catching the 404 error at the root of the ColdFusion web server. It then takes the requested page and starts crawling up the directories url. For each directory, it check for the existence of the cferror.cfm template. If it is found, the root 404 error handler performs a CFLocation to that cferror.cfm template, sending, as the query string, the same "404;" query string that IIS has defined.As the system crawls up the directory path, after checking for cferror.cfm, it checks for either an Application.cfm or Application.cfc file. If it hits one of these files, it stops crawling and displays its own Page Not Found message. The idea here is that we don't want to leave the context of the application when search for a 404 error handler.I have prevented infinite loops (the root 404 error handler constantly CFLocating to itself) by stopping the search once there is no more directory to crawl (signaling that we are in the root directory). I have not tested this, but I assume this means that if the development server's cferror.cfm template is NOT IN THE ROOT of the web server, the infinite looping IS possible. A word of caution: This template is done to help develop 404 error handling by simulating 404 error handling on the live, production server. It DOES NOT MIMIC live 404 error handling. On the live server
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Application Cfm 404
about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users application cfc 404 Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping coldfusion 404 error page each other. Join them; it only takes a minute: Sign up 404 error custom page working for .cfm extension but not for .html? up vote 3 down vote favorite I am trying to redirect invalid pages to a custom http://www.bennadel.com/blog/108-using-coldfusion-to-handle-404-errors-page-not-found-on-development-server.htm 404 error page.
Caching Security Error Handling and Debugging Error Handling Debugging Hands On 30 Hands On 31 i18n What to do Next Error Handling and Debugging Error Handling By Simon Free (Bio) Error Handling and Debugging Error Handling By Simon Free ← Previous Next http://www.learncfinaweek.com/week1/Error_Handling/ → While the best efforts are made to stop errors from happening, they do happen. Sometimes the errors might be due to some bad code; other times it may be due to external resources that are out of one's control. During the development process, these errors hold valuable information that allows us to improve and fix our code, but in production environments, these errors hold information that can make our servers vulnerable to attack. It is 404 error important that as a developer you anticipate errors and gracefully handle them. Thankfully, ColdFusion offers a number of ways to trap those errors and even allow developers to react to those errors and call alternative functionality. Understanding Errors Error Types Before we look at how to handle the errors, lets first take a look at the errors themselves. There are three types of ColdFusion Errors: Exception: Where the error stops the request from completing its process. coldfusion 404 error Missing Template: When an HTTP request for a page can not be found. Form Field Data Validation: When server side form validation fails. The most common error type you are going to experience is the Exception type. Unless the users are requesting a page that does not exist, or you have decided to use ColdFusions in-built form validation (not recommended by most ColdFusion developers), you will receive an Exception error. These exception errors, excluding custom errors, fall into one of the following exception types: Database: When there is a problem with a database call, such as malformed SQL or database connection issue. MissingInclude: When an included file can not be found. Template: When a general error occurs, usually from a malformed tag or incorrect script syntax. Object: When an error occurs with an object. Security: When an error occurs related to security functionality. Expression: When an expression fails, such as 1 + "a". Lock: When an error occurs with a piece of code that has been locked by the application. This can be due to the code failing at runtime or a lock timing out. SearchEngine: When there is an issue with the Verity Search Engine. Application: When custom errors are generated by the cfthrow tag that do not have a type defined. Knowing the type of exception thrown can be useful when handling your errors gr