Package us.codecraft.webmagic.selector

Class Xpath2Selector

  • All Implemented Interfaces:
    NodeSelector, Selector
    public class Xpath2Selector
extends java.lang.Object
implements Selector, NodeSelector
    支持xpath2.0的选择器。包装了HtmlCleaner和Saxon HE。
    Author:
    code4crafter@gmail.com, hooy
    Date: 13-4-21 Time: 上午9:39

    • Constructor Summary

      Constructors 
      Constructor Description
      Xpath2Selector​(java.lang.String xpathStr)  

    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      static Xpath2Selector newInstance​(java.lang.String xpathStr)  
      protected static org.w3c.dom.Document parse​(java.lang.String text)  
      java.lang.String select​(java.lang.String text)
      Extract single result in text.
      If there are more than one result, only the first will be chosen.
      java.lang.String select​(org.w3c.dom.Node node)
      Extract single result in text.
      If there are more than one result, only the first will be chosen.
      java.util.List<java.lang.String> selectList​(java.lang.String text)
      Extract all results in text.
      java.util.List<java.lang.String> selectList​(org.w3c.dom.Node node)
      Extract all results in text.
      org.w3c.dom.Node selectNode​(java.lang.String text)  
      org.w3c.dom.Node selectNode​(org.w3c.dom.Node node)  
      java.util.List<org.w3c.dom.Node> selectNodes​(java.lang.String text)  
      java.util.List<org.w3c.dom.Node> selectNodes​(org.w3c.dom.Node node)  

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • Xpath2Selector

        public Xpath2Selector​(java.lang.String xpathStr)

    • Method Detail

      • newInstance

        public static Xpath2Selector newInstance​(java.lang.String xpathStr)

      • select

        public java.lang.String select​(java.lang.String text)
        Description copied from interface: Selector
        Extract single result in text.
        If there are more than one result, only the first will be chosen.
        Specified by:
        select in interface Selector
        Parameters:
        text - text
        Returns:
        result

      • select

        public java.lang.String select​(org.w3c.dom.Node node)
        Description copied from interface: NodeSelector
        Extract single result in text.
        If there are more than one result, only the first will be chosen.
        Specified by:
        select in interface NodeSelector
        Parameters:
        node - node
        Returns:
        result

      • selectList

        public java.util.List<java.lang.String> selectList​(java.lang.String text)
        Description copied from interface: Selector
        Extract all results in text.
        Specified by:
        selectList in interface Selector
        Parameters:
        text - text
        Returns:
        results

      • selectList

        public java.util.List<java.lang.String> selectList​(org.w3c.dom.Node node)
        Description copied from interface: NodeSelector
        Extract all results in text.
        Specified by:
        selectList in interface NodeSelector
        Parameters:
        node - node
        Returns:
        results

      • selectNode

        public org.w3c.dom.Node selectNode​(java.lang.String text)

      • selectNode

        public org.w3c.dom.Node selectNode​(org.w3c.dom.Node node)

      • selectNodes

        public java.util.List<org.w3c.dom.Node> selectNodes​(java.lang.String text)

      • selectNodes

        public java.util.List<org.w3c.dom.Node> selectNodes​(org.w3c.dom.Node node)

      • parse

        protected static org.w3c.dom.Document parse​(java.lang.String text)
                                     throws javax.xml.parsers.ParserConfigurationException
        Throws:
        javax.xml.parsers.ParserConfigurationException