146 lines
No EOL
4.7 KiB
Markdown
146 lines
No EOL
4.7 KiB
Markdown
# HttpStatus JSP Tag Library
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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.
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----
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For example:
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```jsp
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<%@ page isErrorPage="true" %>
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<%@ taglib prefix="hs" uri="http://erik.thauvin.net/taglibs/httpstatus" %>
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<html><head>
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<title><hs:code/> <hs:reason default="Server Error"/></title>
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</head>
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<h1><hs:reason default="Server Error"/></h1>
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Cause: <pre><hs:cause default="Unable to complete your request."/></pre>
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...
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```
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or
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```jsp
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<%@ page isErrorPage="true" import="net.thauvin.erik.httpstatus.Reasons" %>
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<%= Reasons.getReasonPhrase(pageContext.getErrorData().getStatusCode()) %>
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```
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would display on a [501 status code](http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.5.2):
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Not Implemented
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----
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## hs:cause
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The `<hs:cause/>` tag displays the cause of current HTTP status code, if any. A shorthand for:
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```jsp
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<%= pageContext.getErrorData().getThrowable().getCause().getLocalizedMessage() %>
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```
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Optional attributes are:
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Attribute | Description
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----------- | -------------------------------------------------------------------------------------------
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`default` | The fallback value to output, if no cause is available.
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`escapeXml` | Converts <,>,&,'," to their corresponding [entity codes](http://dev.w3.org/html5/html-author/charref). Value is true by default.
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## hs:code
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The `<hs:code/>` tag displays the current HTTP status code, if any. A shorthand for:
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```jsp
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<%= pageContext.getErrorData().getStatusCode() %>
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```
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## hs:reason
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The `<hs:reason/>` tag displays the reason for a HTTP status code, if any. Optional attributes are:
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Attribute | Description
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----------- | -------------------------------------------------------------------------------------------
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`code` | The HTTP status error code. If not specified the current status code is used.
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`default` | The fallback value to output, if no reason is available.
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`escapeXml` | Converts <,>,&,'," to their corresponding [entity codes](http://dev.w3.org/html5/html-author/charref). Value is true by default.
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The reasons are defined in a [ResourceBundle](http://docs.oracle.com/javase/8/docs/api/java/util/ResourceBundle.html) properties as follows:
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Status Code | Reason
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----------- | -------------------------------
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`100` | Continue
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`101` | Switching Protocols
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`102` | Processing
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`200` | OK
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`201` | Created
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`202` | Accepted
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`203` | Non-Authoritative Information
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`204` | No Content
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`205` | Reset Content
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`206` | Partial Content
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`207` | Multi-Status
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`208` | Already Reported
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`226` | IM Used
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`300` | Multiple Choices
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`301` | Moved Permanently
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`302` | Moved Temporarily
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`303` | See Other
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`304` | Not Modified
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`305` | Use Proxy
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`306` | Switch Proxy
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`307` | Temporary Redirect
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`308` | Permanent Redirect
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`400` | Bad Request
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`401` | Unauthorized
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`402` | Payment Required
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`403` | Forbidden
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`404` | Not Found
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`405` | Method Not Allowed
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`406` | Not Acceptable
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`407` | Proxy Authentication Required
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`408` | Request Timeout
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`409` | Conflict
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`410` | Gone
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`411` | Length Required
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`412` | Precondition Failed
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`413` | Request Entity Too Large
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`414` | Request-URI Too Long
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`415` | Unsupported Media Type
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`416` | Requested Range Not Satisfiable
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`417` | Expectation Failed
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`418` | I'm A Teapot
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`419` | Insufficient Space on Resource
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`420` | Method Failure
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`421` | Misdirected Request
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`422` | Unprocessable Entity
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`423` | Locked
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`424` | Failed Dependency
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`426` | Upgrade Required
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`428` | Precondition Required
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`429` | Too Many Requests
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`431` | Request Header Fields Too Large
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`440` | Login Timeout
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`444` | No Response
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`449` | Retry With
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`450` | Blocked by Windows Parental Controls
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`451` | Unavailable For Legal Reasons
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`494` | Request Header Too Large
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`495` | Cert Error
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`496` | No Cert
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`497` | HTTP to HTTPS
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`498` | Token Expired/Invalid
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`499` | Client Closed Request
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`500` | Internal Server Error
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`501` | Not Implemented
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`502` | Bad Gateway
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`503` | Service Unavailable
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`504` | Gateway Timeout
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`505` | HTTP Version Not Supported
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`506` | Variant Also Negotiates
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`507` | Insufficient Storage
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`508` | Loop Detected
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`509` | Bandwidth Limit Exceeded
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`510` | Not Extended
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`511` | Network Authentication Required
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`520` | Unknown Error
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`522` | Origin Connection Time-out
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`598` | Network Read Timeout Error
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`599` | Network Connect Timeout Error |