Package javax.servlet.annotation

Annotation Type WebFilter

  • @Target(TYPE)
@Retention(RUNTIME)
@Documented
public @interface WebFilter
    The annotation used to declare a Servlet Filter.

    This annotation will be processed by the container during deployment, the Filter class in which it is found will be created as per the configuration and applied to the URL patterns, Servlets and DispatcherTypes.

    If the name attribute is not defined, the fully qualified name of the class is used.

    At least one URL pattern MUST be declared in either the value or urlPattern attribute of the annotation, but not both.

    The value attribute is recommended for use when the URL pattern is the only attribute being set, otherwise the urlPattern attribute should be used.

    The annotated class MUST implement Filter. E.g. @WebFilter("/path/*")
    public class AnExampleFilter implements Filter { ...
    Since:
    Servlet 3.0 (Section 8.1.2)

    • Element Detail

      • description

        String description
        Returns:
        description of the Filter, if present
        Default:
        ""

      • displayName

        String displayName
        Returns:
        display name of the Filter, if present
        Default:
        ""

      • initParams

        WebInitParam[] initParams
        Returns:
        array of initialization params for this Filter
        Default:
        {}

      • filterName

        String filterName
        Returns:
        name of the Filter, if present
        Default:
        ""

      • smallIcon

        String smallIcon
        Returns:
        small icon for this Filter, if present
        Default:
        ""

      • largeIcon

        String largeIcon
        Returns:
        the large icon for this Filter, if present
        Default:
        ""

      • servletNames

        String[] servletNames
        Returns:
        array of Servlet names to which this Filter applies
        Default:
        {}

      • value

        String[] value
        A convenience method, to allow extremely simple annotation of a class.
        Returns:
        array of URL patterns
        See Also:
        urlPatterns()
        Default:
        {}

      • urlPatterns

        String[] urlPatterns
        Returns:
        array of URL patterns to which this Filter applies
        Default:
        {}

      • dispatcherTypes

        DispatcherType[] dispatcherTypes
        Returns:
        array of DispatcherTypes to which this filter applies
        Default:
        {javax.servlet.DispatcherType.REQUEST}

      • asyncSupported

        boolean asyncSupported
        Returns:
        asynchronous operation supported by this Filter
        Default:
        false