Package us.codecraft.webmagic.model.annotation

Annotation Type ExtractByUrl

@Retention(RUNTIME) @Target(FIELD) public @interface ExtractByUrl
Define a extractor to extract data in url of current page. Only regex can be used.
Since:
0.2.0
Author:
code4crafter@gmail.com

  • Optional Element Summary

    Optional Elements
    Modifier and Type
    Optional Element
    Description
    boolean
    multi
    Deprecated.
    since 0.4.2
    boolean
    notNull
    Define whether the field can be null.
    If set to 'true' and the extractor get no result, the entire class will be discarded.
    String
    value
    Extractor expression, only regex can be used

  • Element Details

    • value

      String value
      Extractor expression, only regex can be used
      Returns:
      extractor expression
      Default:
      ""

    • notNull

      boolean notNull
      Define whether the field can be null.
      If set to 'true' and the extractor get no result, the entire class will be discarded.
      Returns:
      whether the field can be null
      Default:
      false

    • multi

      boolean multi
      Deprecated.
      since 0.4.2
      Define whether the extractor return more than one result. When set to 'true', the extractor return a list of string (so you should define the field as List).
      Deprecated since 0.4.2. This option is determined automatically by the class of field.
      Returns:
      whether the extractor return more than one result
      Default:
      false