org.springframework.web.servlet.view

## Class DefaultRequestToViewNameTranslator

- java.lang.Object
- - org.springframework.web.servlet.view.DefaultRequestToViewNameTranslator

- All Implemented Interfaces:
    RequestToViewNameTranslator

      public class DefaultRequestToViewNameTranslator
      extends Object
      implements RequestToViewNameTranslator

  `RequestToViewNameTranslator` that simply transforms the URI of the incoming request into a view name.

  Can be explicitly defined as the "viewNameTranslator" bean in a `DispatcherServlet` context. Otherwise, a plain default instance will be used.

  The default transformation simply strips leading and trailing slashes as well as the file extension of the URI, and returns the result as the view name with the configured `"prefix"` and a `"suffix"` added as appropriate.

  The stripping of the leading slash and file extension can be disabled using the `"stripLeadingSlash"` and `"stripExtension"` properties, respectively.

  Find below some examples of request to view name translation.

      http://localhost:8080/gamecast/display.html -> display
       http://localhost:8080/gamecast/displayShoppingCart.html -> displayShoppingCart
       http://localhost:8080/gamecast/admin/index.html -> admin/index

  Since:
    2.0
  Author:
    Rob Harrop, Juergen Hoeller
  See Also:
    `RequestToViewNameTranslator`, `ViewResolver`

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `DefaultRequestToViewNameTranslator()`

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `String` | `getViewName(HttpServletRequest request)` Translates the request URI of the incoming `HttpServletRequest` into the view name based on the configured parameters.
    `void` | `setAlwaysUseFullPath(boolean alwaysUseFullPath)` Set if URL lookup should always use the full path within the current servlet context.
    `void` | `setPrefix(String prefix)` Set the prefix to prepend to generated view names.
    `void` | `setRemoveSemicolonContent(boolean removeSemicolonContent)` Set if ";" (semicolon) content should be stripped from the request URI.
    `void` | `setSeparator(String separator)` Set the value that will replace '`/`' as the separator in the view name.
    `void` | `setStripExtension(boolean stripExtension)` Set whether or not file extensions should be stripped from the URI when generating the view name.
    `void` | `setStripLeadingSlash(boolean stripLeadingSlash)` Set whether or not leading slashes should be stripped from the URI when generating the view name.
    `void` | `setStripTrailingSlash(boolean stripTrailingSlash)` Set whether or not trailing slashes should be stripped from the URI when generating the view name.
    `void` | `setSuffix(String suffix)` Set the suffix to append to generated view names.
    `void` | `setUrlDecode(boolean urlDecode)` Set if the context path and request URI should be URL-decoded.
    `void` | `setUrlPathHelper(UrlPathHelper urlPathHelper)` Set the `UrlPathHelper` to use for the resolution of lookup paths.
    `protected String` | `transformPath(String lookupPath)` Transform the request URI (in the context of the webapp) stripping slashes and extensions, and replacing the separator as required.

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Constructor Detail

    - #### DefaultRequestToViewNameTranslator

          public DefaultRequestToViewNameTranslator()

  - ### Method Detail

    - #### setPrefix

          public void setPrefix(String prefix)

      Set the prefix to prepend to generated view names.
      Parameters:
        `prefix` - the prefix to prepend to generated view names

    - #### setSuffix

          public void setSuffix(String suffix)

      Set the suffix to append to generated view names.
      Parameters:
        `suffix` - the suffix to append to generated view names

    - #### setSeparator

          public void setSeparator(String separator)

      Set the value that will replace '`/`' as the separator in the view name. The default behavior simply leaves '`/`' as the separator.

    - #### setStripLeadingSlash

          public void setStripLeadingSlash(boolean stripLeadingSlash)

      Set whether or not leading slashes should be stripped from the URI when generating the view name. Default is "true".

    - #### setStripTrailingSlash

          public void setStripTrailingSlash(boolean stripTrailingSlash)

      Set whether or not trailing slashes should be stripped from the URI when generating the view name. Default is "true".

    - #### setStripExtension

          public void setStripExtension(boolean stripExtension)

      Set whether or not file extensions should be stripped from the URI when generating the view name. Default is "true".

    - #### setAlwaysUseFullPath

          public void setAlwaysUseFullPath(boolean alwaysUseFullPath)

      Set if URL lookup should always use the full path within the current servlet context. Else, the path within the current servlet mapping is used if applicable (i.e. in the case of a ".../*" servlet mapping in web.xml). Default is "false".
      See Also:
        `UrlPathHelper.setAlwaysUseFullPath(boolean)`

    - #### setUrlDecode

          public void setUrlDecode(boolean urlDecode)

      Set if the context path and request URI should be URL-decoded. Both are returned undecoded by the Servlet API, in contrast to the servlet path.

      Uses either the request encoding or the default encoding according to the Servlet spec (ISO-8859-1).

      See Also:
        `UrlPathHelper.setUrlDecode(boolean)`

    - #### setRemoveSemicolonContent

          public void setRemoveSemicolonContent(boolean removeSemicolonContent)

      Set if ";" (semicolon) content should be stripped from the request URI.
      See Also:
        `UrlPathHelper.setRemoveSemicolonContent(boolean)`

    - #### setUrlPathHelper

          public void setUrlPathHelper(UrlPathHelper urlPathHelper)

      Set the `UrlPathHelper` to use for the resolution of lookup paths.

      Use this to override the default UrlPathHelper with a custom subclass, or to share common UrlPathHelper settings across multiple web components.

    - #### getViewName

          public String getViewName(HttpServletRequest request)

      Translates the request URI of the incoming `HttpServletRequest` into the view name based on the configured parameters.
      Specified by:
        `getViewName` in interface `RequestToViewNameTranslator`
      Parameters:
        `request` - the incoming `HttpServletRequest` providing the context from which a view name is to be resolved
      Returns:
        the view name (or `null` if no default found)
      See Also:
        `UrlPathHelper.getLookupPathForRequest(javax.servlet.http.HttpServletRequest)`, `transformPath(java.lang.String)`

    - #### transformPath

          protected String transformPath(String lookupPath)

      Transform the request URI (in the context of the webapp) stripping slashes and extensions, and replacing the separator as required.
      Parameters:
        `lookupPath` - the lookup path for the current request, as determined by the UrlPathHelper
      Returns:
        the transformed path, with slashes and extensions stripped if desired