# HttpStatus JSP Tag Library
A simple JSP Tag Library to display the reason of [HTTP status codes](http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html) in JSP error pages.
----
For example:
```jsp
<%@ page isErrorPage="true" %>
<%@ taglib prefix="hs" uri="http://erik.thauvin.net/taglibs/httpstatus" %>
<hs:code/> <hs:reason default="Server Error"/>
Cause:
...
```
or
```jsp
<%@ page isErrorPage="true" import="net.thauvin.erik.httpstatus.Reasons" %>
<%= Reasons.getReasonPhrase(pageContext.getErrorData().getStatusCode()) %>
```
would display on a [501 status code](http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.5.2):
Not Implemented
----
## hs:cause
The `` tag displays the cause of current HTTP status code, if any. A shorthand for:
```jsp
<%= pageContext.getErrorData().getThrowable().getCause().getLocalizedMessage() %>
```
Optional attributes are:
Attribute | Description
----------- | -------------------------------------------------------------------------------------------
`default` | The fallback value to output, if no cause is available.
`escapeXml` | Converts <,>,&,'," to their corresponding [entity codes](http://dev.w3.org/html5/html-author/charref). Value is true by default.
## hs:code
The `` tag displays the current HTTP status code, if any. A shorthand for:
```jsp
<%= pageContext.getErrorData().getStatusCode() %>
```
## hs:reason
The `` tag displays the reason for a HTTP status code, if any. Optional attributes are:
Attribute | Description
----------- | -------------------------------------------------------------------------------------------
`code` | The HTTP status error code. If not specified the current status code is used.
`default` | The fallback value to output, if no reason is available.
`escapeXml` | Converts <,>,&,'," to their corresponding [entity codes](http://dev.w3.org/html5/html-author/charref). Value is true by default.
The reasons are defined in a [ResourceBundle](http://docs.oracle.com/javase/8/docs/api/java/util/ResourceBundle.html) properties as follows:
Status Code | Reason
----------- | -------------------------------
`100` | Continue
`101` | Switching Protocols
`102` | Processing
`200` | OK
`201` | Created
`202` | Accepted
`203` | Non-Authoritative Information
`204` | No Content
`205` | Reset Content
`206` | Partial Content
`207` | Multi-Status
`208` | Already Reported
`226` | IM Used
`300` | Multiple Choices
`301` | Moved Permanently
`302` | Moved Temporarily
`303` | See Other
`304` | Not Modified
`305` | Use Proxy
`306` | Switch Proxy
`307` | Temporary Redirect
`308` | Permanent Redirect
`400` | Bad Request
`401` | Unauthorized
`402` | Payment Required
`403` | Forbidden
`404` | Not Found
`405` | Method Not Allowed
`406` | Not Acceptable
`407` | Proxy Authentication Required
`408` | Request Timeout
`409` | Conflict
`410` | Gone
`411` | Length Required
`412` | Precondition Failed
`413` | Request Entity Too Large
`414` | Request-URI Too Long
`415` | Unsupported Media Type
`416` | Requested Range Not Satisfiable
`417` | Expectation Failed
`418` | I'm A Teapot
`419` | Insufficient Space on Resource
`420` | Method Failure
`421` | Misdirected Request
`422` | Unprocessable Entity
`423` | Locked
`424` | Failed Dependency
`426` | Upgrade Required
`428` | Precondition Required
`429` | Too Many Requests
`431` | Request Header Fields Too Large
`440` | Login Timeout
`444` | No Response
`449` | Retry With
`450` | Blocked by Windows Parental Controls
`451` | Unavailable For Legal Reasons
`494` | Request Header Too Large
`495` | Cert Error
`496` | No Cert
`497` | HTTP to HTTPS
`498` | Token Expired/Invalid
`499` | Client Closed Request
`500` | Internal Server Error
`501` | Not Implemented
`502` | Bad Gateway
`503` | Service Unavailable
`504` | Gateway Timeout
`505` | HTTP Version Not Supported
`506` | Variant Also Negotiates
`507` | Insufficient Storage
`508` | Loop Detected
`509` | Bandwidth Limit Exceeded
`510` | Not Extended
`511` | Network Authentication Required
`520` | Unknown Error
`522` | Origin Connection Time-out
`598` | Network Read Timeout Error
`599` | Network Connect Timeout Error