CommandBox : CLI, Package Manager, REPL & More
4.6.0
4.6.0
  • Introduction
  • About This Book
  • Authors
  • Overview
  • Getting Started Guide
  • Setup
    • Requirements
    • Download
    • Installation
    • Non-Oracle JREs
    • Upgrading
    • Common Errors
  • Usage
    • Execution
      • Recipes
      • CFML Files
        • Using a DB in CFML scripts
      • OS Binaries
      • CFML Functions
      • Exit Codes
    • Commands
    • Parameters
      • Escaping Special Characters
      • File Paths
      • Globbing Patterns
      • Piping into Commands
      • Expressions
    • Command Help
    • Environment Variables
    • System Settings
    • Ad-hoc Command Aliases
    • Default Command Parameters
    • REPL
    • Tab Completion
    • Interactive Shell Features
    • forEach Command
    • Auto Update Checks
    • Bullet Train Prompt
    • 256 Color Support
    • A Little Fun
  • IDE Integrations
    • Sublime Text
    • Visual Studio Code
  • Config Settings
    • Module Settings
    • Proxy Settings
    • Endpoint Settings
    • Server Settings
    • Misc Settings
  • Embedded Server
    • Multi-Engine Support
    • Offline Server Starts
    • Debugging Server Starts
    • Server Processes
    • Manage Servers
    • FusionReactor
    • Server Logs
    • Configuring Your Server
      • JVM Args
      • Server Port and Host
      • URL Rewrites
      • Aliases
      • Custom Error Pages
      • Welcome Files
      • Basic Authentication
      • Custom Java Version
      • Adding Custom Libs
      • GZip Compression
      • REST Servlet
    • External Web Server
    • Starting as a Service
    • Server.json
      • Working with server.json
      • Packaging Your Server
      • Using Multiple server.json Files
  • Package Management
    • Installing Packages
      • Installation Path
      • Installation Options
      • Advanced Installation
    • Private Packages
    • System Modules
    • Code Endpoints
      • ForgeBox
      • HTTP(S)
      • File
      • Folder
      • Git
      • Java
      • S3
      • CFLib
      • RIAForge
      • Jar (via HTTP)
      • Gist
    • Package Scripts
    • Dependencies
    • Updating Packages
    • Creating Packages
      • Editing Package Properties
      • Publishing Lucee Extensions to ForgeBox
    • Artifacts
    • Box.json
      • Basic Package Data
      • Extended Package Data
      • Package URLs
      • Installation
      • Embedded Server
      • Dependencies
      • TestBox
    • Managing Version
  • Task Runners
    • Task Anatomy
    • Task Target Dependencies
    • Passing Parameters
    • Using Parameters
    • Task Output
    • Task Interactivity
    • Shell Integration
    • Downloading Files
    • Running Other Commands
    • Error Handling
    • Hitting Your Database
    • Interactive Jobs
    • Watchers
    • Property Files
    • Running other Tasks
    • Loading Ad hoc Jars
    • Loading Ad-hoc Modules
    • Cancel Long Tasks
    • Progress Bar
  • Helpful Commands
    • Token Replacements
    • Checksums
    • Code Quality Tools
  • Deploying CommandBox
    • Docker
    • Heroku
  • TestBox Integration
    • Test Runner
    • Test Watcher
  • Developing For CommandBox
    • Modules
      • Installation and Locations
      • Configuration
        • Public Properties
        • Configure() Method
        • Lifecycle Methods
      • Conventions
      • User Settings
      • Linking Modules
    • Commands
      • Aliases
      • Using Parameters
        • Using File Globs
        • Dynamic Parameters
      • Command Output
      • Tab Completion & Help
      • Interactivity
      • Watchers
      • Shell integration
      • Running Other Commands
      • Error handling
      • Watchers
      • Loading Ad hoc Jars
    • Interceptors
      • Core Interception Points
        • CLI Lifecycle
        • Command Execution Lifecycle
        • Module Lifecycle
        • Server Lifecycle
        • Error Handling
        • Package Lifecycle
      • Custom Interception Points
    • Injection DSL
    • Example Project
  • ForgeBox Enterprise
    • Introduction
    • Storage
    • Commands
      • List
      • Register
      • Login
      • Set Default
      • Remove
    • Usage
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  1. Embedded Server
  2. Configuring Your Server

Custom Error Pages

You can customize the error page that CommandBox servers return. You can have a setting for each status code including a default error page to be used if no other setting applies.

Create an errorPages object inside the web object in your server.json where each key is the status code integer or the word default and the value is a relative (to the web root) path to be loaded for that status code.

This is what you server.json might look like:

{
  "web" : {
    "errorPages" : {
      "404" : "/path/to/404.html",
      "500" : "/path/to/500.html",
      "default" : "/path/to/default.html"
    }
  }
}

You can set error pages via the server set command like this:

server set web.errorPages.404=/missing.htm

Accessing error variables

If your error page points to a CFM file, you can get access to the original path being accessed for 404s and the error that was thrown for 500s. To see all the request headers that are available, use the following snippet of code:

req = getPageContext().getRequest();
names = req.getAttributeNames();
while( names.hasMoreElements() ) {
    name = names.nextElement();
    writeDump( name & ' = ' & req.getAttribute( name ) );
}

An example of getting the original missing path in a 404 would look like this:

var originalPath = getPageContext().getRequest().getAttribute( "javax.servlet.error.request_uri" );
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Last updated 7 years ago

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