com.yishuifengxiao.common.crawler.extractor.content.strategy.impl

Class ArrayStrategy

java.lang.Object

com.yishuifengxiao.common.crawler.extractor.content.strategy.impl.ArrayStrategy

All Implemented Interfaces:

Strategy

public class ArrayStrategy
extends Object
implements Strategy

数组截取策略
将输入数据根据分隔符分割为数组，然后从分割的数组中提取第N个元素

Version:

1.0.0

Author:

yishui

Constructor Summary

Constructors

Constructor and Description
ArrayStrategy()

Method Summary

Modifier and Type	Method and Description
String	extract(String input, String param1, String param2) 根据规则提取输入字符里的数据

Methods inherited from class java.lang.Object

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

Constructor Detail

ArrayStrategy

public ArrayStrategy()

Method Detail

extract

public String extract(String input,
                      String param1,
                      String param2)

根据规则提取输入字符里的数据

Specified by:

extract in interface Strategy

Parameters:

input - 输入数据

param1 - 第一个参数，必填，分隔符

param2 - 第二个参数 ，必填，必须为数字，提取的元素的序号，从1开始计数

Returns:

输出数据，注意可能是null或空字符串