ErrorServlet (I2P Anonymous Network - Java Documentation

java.lang.Object
- javax.servlet.GenericServlet
- - javax.servlet.http.HttpServlet
  - - net.i2p.servlet.ErrorServlet

All Implemented Interfaces:

Serializable, Servlet, ServletConfig
```
public class ErrorServlet
extends HttpServlet
```
Common servlet for errors This is intended for webapps and local plugins. It is not appropriate for eepsites or remotely-accessible plugins, as it uses local console resources. See http://www.eclipse.org/jetty/documentation/current/custom-error-pages.html for how to add to web.xml or see examples in bundled webapps. Init parameters:
- CSSPath - absolue URL of CSS to reference, starting with /, defaults to console theme
- name - webapp or plugin name, will be translated with bundle, e.g. SusiMail
- bundle - package of translation bundle, e.g. net.i2p.susimail.web.messages
Most strings are translated with the console bundle, as we're using the same strings as in error.jsp and error500.jsp. Supported error codes: 403, 404, and 500+. Others must be added here.
Since:

0.9.34 adapted from routerconsole error.jsp, error500.jsp, and CSSHelper

See Also:

Serialized Form

Constructor Summary

Constructors
Constructor Description

ErrorServlet()

Constructors
Constructor	Description
`ErrorServlet()`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected String`	`_t(String s)`	translate a string, console bundle
`protected String`	`_t(String s, Object o)`	translate a string, console bundle
`protected String`	`_t(String s, Object o, Object o2)`	translate a string, console bundle
`protected String`	`_w(String s)`	translate a string, with webapp bundle
`protected void`	`doGet(HttpServletRequest req, HttpServletResponse resp)`
`void`	`init()`
`protected void`	`outputMessage(PrintWriter out, int errorCode, String errorMsg, String errorURI, Throwable errorCause)`	Override for specific cases.

Methods inherited from class javax.servlet.GenericServlet
destroy, getInitParameter, getInitParameterNames, getServletConfig, getServletContext, getServletInfo, getServletName, init, log, log

Methods inherited from class javax.servlet.http.HttpServlet
doDelete, doHead, doOptions, doPost, doPut, doTrace, getLastModified, service, service

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail
- ErrorServlet
```
public ErrorServlet()
```

Method Detail

init
```
public void init()
          throws ServletException
```
Overrides:

init in class GenericServlet

Throws:

ServletException

doGet

protected void doGet(HttpServletRequest req,
                     HttpServletResponse resp)
              throws ServletException,
                     IOException

Overrides:: doGet in class HttpServlet
Throws:: ServletException; IOException

outputMessage

protected void outputMessage(PrintWriter out,
                             int errorCode,
                             String errorMsg,
                             String errorURI,
                             Throwable errorCause)

Override for specific cases. This supports 403, 404, and 500+. Output HTML that goes inside the div.

Parameters:: errorCode - e.g. 404; errorMsg - non-null, may be empty, already HTML-escaped; errorURI - non-null, may be empty, already HTML-escaped; errorCause - may be null

_w
```
protected String _w(String s)
```
translate a string, with webapp bundle

_t
```
protected String _t(String s)
```
translate a string, console bundle

_t

protected String _t(String s,
                    Object o)

translate a string, console bundle

_t

protected String _t(String s,
                    Object o,
                    Object o2)

translate a string, console bundle

Class ErrorServlet

Constructor Summary

Method Summary

Methods inherited from class javax.servlet.GenericServlet

Methods inherited from class javax.servlet.http.HttpServlet

Methods inherited from class java.lang.Object

Constructor Detail

ErrorServlet

Method Detail

init

doGet

outputMessage

_w

_t

_t

_t