GroovyServlet (groovy 2.4.6 API)
Date: 2016-02-18

Package: groovy.servlet

## [Java] Class GroovyServlet

- groovy.servlet.GroovyServlet

- This servlet will run Groovy scripts as Groovlets. Groovlets are scripts with these objects implicit in their scope:

  - request - the HttpServletRequest
  - response - the HttpServletResponse
  - application - the ServletContext associated with the servlet
  - session - the HttpSession associated with the HttpServletRequest
  - out - the PrintWriter associated with the ServletRequest

  Your script sources can be placed either in your web application's normal web root (allows for subdirectories) or in /WEB-INF/groovy/* (also allows subdirectories).

  To make your web application more groovy, you must add the GroovyServlet to your application's web.xml configuration using any mapping you like, so long as it follows the pattern *.* (more on this below). Here is the web.xml entry:

          <servlet>
            <servlet-name>Groovy</servlet-name>
            <servlet-class>groovy.servlet.GroovyServlet</servlet-class>
          </servlet>

          <servlet-mapping>
            <servlet-name>Groovy</servlet-name>
            <url-pattern>*.groovy</url-pattern>
            <url-pattern>*.gdo</url-pattern>
          </servlet-mapping>

  The URL pattern does not require the "*.groovy" mapping. You can, for example, make it more Struts-like but groovy by making your mapping "*.gdo".

  Authors:
    Sam Pullara
    Mark Turansky (markturansky at hotmail.com)
    Guillaume Laforge
    Christian Stein
    Marcel Overdijk
  See Also:
    ServletBinding

- - Inherited fields
    Fields inherited from class | Fields
    --- | ---
    `class AbstractHttpServlet` | `CONTENT_TYPE_TEXT_HTML, INC_PATH_INFO, INC_REQUEST_URI, INC_SERVLET_PATH, INIT_PARAM_RESOURCE_NAME_REGEX, INIT_PARAM_RESOURCE_NAME_REGEX_FLAGS, encoding, namePrefix, reflection, resourceNamePattern, resourceNameReplaceAll, resourceNameReplacement, servletContext, verbose`

  - ### Methods Summary

    Methods
    Type | Name and description
    --- | ---
    `protected GroovyScriptEngine` | `createGroovyScriptEngine()` Hook method to setup the GroovyScriptEngine to use.
    `void` | `init(ServletConfig config)` Initialize the GroovyServlet.
    `void` | `service(HttpServletRequest request, HttpServletResponse response)` Handle web requests to the GroovyServlet

  - ### Inherited Methods Summary

    Inherited Methods
    Methods inherited from class | Name
    --- | ---
    `class AbstractHttpServlet` | `applyResourceNameMatcher, generateNamePrefixOnce, getResourceConnection, getScriptUri, getScriptUriAsFile, init, removeNamePrefix, setVariables`

- - ### Method Detail

    - #### protected GroovyScriptEngine createGroovyScriptEngine()

      Hook method to setup the GroovyScriptEngine to use.
      Subclasses may override this method to provide a custom engine.

    - #### public void init(ServletConfig config)

      Initialize the GroovyServlet.

      throws:
        ServletException if this method encountered difficulties

    - #### public void service(HttpServletRequest request, HttpServletResponse response)

      Handle web requests to the GroovyServlet