package?com.chenssy.keyword;

import?java.util.HashSet;
import?java.util.Iterator;
import?java.util.Map;
import?java.util.Set;

/**
?*?@Description:?敏感詞過濾
?*?@Project：test
?*/
public?class?SensitivewordFilter?{
	@SuppressWarnings（“rawtypes“）
	private?Map?sensitiveWordMap?=?null;
	public?static?int?minMatchTYpe?=?1;??????//最小匹配規則
	public?static?int?maxMatchType?=?2;??????//最大匹配規則
	
	/**
	?*?構造函數，初始化敏感詞庫
	?*/
	public?SensitivewordFilter（）{
		sensitiveWordMap?=?new?SensitiveWordInit（）.initKeyWord（）;
	}
	
	/**
	?*?判斷文字是否包含敏感字符
	?*?@param?txt??文字
	?*?@param?matchType??匹配規則 1：最小匹配規則，2：最大匹配規則
	?*?@return?若包含返回true，否則返回false
	?*?@version?1.0
	?*/
	public?boolean?isContaintSensitiveWord（String?txtint?matchType）{
		boolean?flag?=?false;
		for（int?i?=?0?;?i?			int?matchFlag?=?this.CheckSensitiveWord（txt?i?matchType）;?//判斷是否包含敏感字符
			if（matchFlag?>?0）{????//大于0存在，返回true
				flag?=?true;
			}
		}
		return?flag;
	}
	
	/**
	?*?獲取文字中的敏感詞
	?*?@param?txt?文字
	?*?@param?matchType?匹配規則 1：最小匹配規則，2：最大匹配規則
	?*?@return
	?*?@version?1.0
	?*/
	public?Set?getSensitiveWord（String?txt??int?matchType）{
		Set?sensitiveWordList?=?new?HashSet（）;
		
		for（int?i?=?0?;?i?			int?length?=?CheckSensitiveWord（txt?i?matchType）;????//判斷是否包含敏感字符
			if（length?>?0）{????//存在加入list中
				sensitiveWordList.add（txt.substring（i?i+length））;
				i?=?i?+?length?-?1;????//減1的原因，是因為for會自增
			}
		}
		
		return?sensitiveWordList;
	}
	
	/**
	?*?替換敏感字字符
	?*?@param?txt
	?*?@param?matchType
	?*?@param?replaceChar?替換字符，默認*
	?*?@version?1.0
	?*/
	public?String?replaceSensitiveWord（String?txtint?matchTypeString?replaceChar）{
		String?resultTxt?=?txt;
		Set?set?=?getSensitiveWord（txt?matchType）;?????//獲取所有的敏感詞
		Iterator?iterator?=?set.iterator（）;
		String?word?=?null;
		String?replaceString?=?null;
		while?（iterator.hasNext（））?{
			word?=?iterator.next（）;
			replaceString?=?getReplaceChars（replaceChar?word.length（））;
			resultTxt?=?resultTxt.replaceAll（word?replaceString）;
		}
		
		return?resultTxt;
	}
	
	/**
	?*?獲取替換字符串
	?*?@param?replaceChar
	?*?@param?length
	?*?@return
	?*?@version?1.0
	?*/
	private?String?getReplaceChars（String?replaceCharint?length）{
		String?resultReplace?=?replaceChar;
		for（int?i?=?1?;?i?			resultReplace?+=?replaceChar;
		}
		
		return?resultReplace;
	}
	
	/**
	?*?檢查文字中是否包含敏感字符，檢查規則如下：

	?*?@param?txt
	?*?@param?beginIndex
	?*?@param?matchType
	?*?@return，如果存在，則返回敏感詞字符的長度，不存在返回0
	?*?@version?1.0
	?*/
	@SuppressWarnings（{?“rawtypes“}）
	public?int?CheckSensitiveWord（String?txtint?beginIndexint?matchType）{
		boolean??flag?=?false;????//敏感詞結束標識位：用于敏感詞只有1位的情況
		int?matchFlag?=?0;?????//匹配標識數默認為0
		char?word?=?0;
		Map?nowMap?=?sensitiveWordMap;
		for（int?i?=?beginIndex;?i?			word?=?txt.charAt（i）;
			nowMap?=?（Map）?nowMap.ge

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2018-08-29?21:15??敏感詞過濾\
?????目錄???????????0??2018-08-29?21:15??敏感詞過濾\.git\
?????文件??????????23??2018-08-29?21:15??敏感詞過濾\.git\HEAD
?????文件?????????130??2018-08-29?21:15??敏感詞過濾\.git\config
?????文件??????????73??2018-08-29?21:15??敏感詞過濾\.git\description
?????目錄???????????0??2018-08-29?21:15??敏感詞過濾\.git\hooks\
?????文件?????????478??2018-08-29?21:15??敏感詞過濾\.git\hooks\applypatch-msg.sample
?????文件?????????896??2018-08-29?21:15??敏感詞過濾\.git\hooks\commit-msg.sample
?????文件?????????189??2018-08-29?21:15??敏感詞過濾\.git\hooks\post-update.sample
?????文件?????????424??2018-08-29?21:15??敏感詞過濾\.git\hooks\pre-applypatch.sample
?????文件????????1642??2018-08-29?21:15??敏感詞過濾\.git\hooks\pre-commit.sample
?????文件????????1348??2018-08-29?21:15??敏感詞過濾\.git\hooks\pre-push.sample
?????文件????????4951??2018-08-29?21:15??敏感詞過濾\.git\hooks\pre-rebase.sample
?????文件????????1239??2018-08-29?21:15??敏感詞過濾\.git\hooks\prepare-commit-msg.sample
?????文件????????3611??2018-08-29?21:15??敏感詞過濾\.git\hooks\update.sample
?????目錄???????????0??2018-08-29?21:15??敏感詞過濾\.git\info\
?????文件?????????240??2018-08-29?21:15??敏感詞過濾\.git\info\exclude
?????目錄???????????0??2018-08-29?21:15??敏感詞過濾\.git\objects\
?????目錄???????????0??2018-08-29?21:19??敏感詞過濾\.git\objects\info\
?????目錄???????????0??2018-08-29?21:19??敏感詞過濾\.git\objects\pack\
?????目錄???????????0??2018-08-29?21:15??敏感詞過濾\.git\refs\
?????目錄???????????0??2018-08-29?21:19??敏感詞過濾\.git\refs\heads\
?????目錄???????????0??2018-08-29?21:19??敏感詞過濾\.git\refs\tags\
?????文件????????3745??2018-08-29?21:05??敏感詞過濾\SensitiveWordInit.java
?????文件????????4794??2018-08-29?21:04??敏感詞過濾\SensitivewordFilter.java