[Java]代码    

import java.io.File;  import java.io.IOException;  import java.util.ArrayList;  import java.util.HashMap;  import java.util.List;  import java.util.Map;    import org.apache.commons.io.FileUtils;  import org.apache.commons.lang.StringUtils;    public class BadWordsUtil {         public static final int WORDS_MAX_LENGTH = 10;      public static final String BAD_WORDS_LIB_FILE_NAME = "badWords.txt";          //敏感词列表      public static Map[] badWordsList = null;          //敏感词索引      public static Map<String, Integer> wordIndex = new HashMap<String, Integer>();          /*      * 初始化敏感词库      */      public static void initbadWordsList() throws IOException {          if (badWordsList == null) {              badWordsList = new Map[WORDS_MAX_LENGTH];                  for (int i = 0; i < badWordsList.length; i++) {                  badWordsList[i] = new HashMap<String, String>();              }          }            //敏感词词库所在目录，这里为txt文本，一个敏感词一行          String path = BadWordsUtil.class.getClassLoader()                                          .getResource(BAD_WORDS_LIB_FILE_NAME)                                          .getPath();          System.out.println(path);              List<String> words = FileUtils.readLines(new File(path),"UTF-8");              for (String w : words) {              if (StringUtils.isNotBlank(w)) {                  //将敏感词按长度存入map                  badWordsList[w.length()].put(w.toLowerCase(), "");                      Integer index = wordIndex.get(w.substring(0, 1));                      //生成敏感词索引，存入map                  if (index == null) {                      index = 0;                  }                    int x = (int) Math.pow(2, w.length());                  index = (index | x);                  wordIndex.put(w.substring(0, 1), index);              }          }      }          /**      * 检索敏感词      * @param content      * @return      */      public static List<String> searchBanWords(String content) {          if (badWordsList == null) {              try {                  initbadWordsList();              } catch (IOException e) {                  throw new RuntimeException(e);              }          }              List<String> result = new ArrayList<String>();              for (int i = 0; i < content.length(); i++) {              Integer index = wordIndex.get(content.substring(i, i + 1));              int p = 0;                  while ((index != null) && (index > 0)) {                  p++;                  index = index >> 1;                      String sub = "";                      if ((i + p) < (content.length() - 1)) {                      sub = content.substring(i, i + p);                  } else {                      sub = content.substring(i);                  }                      if (((index % 2) == 1) && badWordsList[p].containsKey(sub)) {                      result.add(content.substring(i, i + p));                  }              }          }              return result;      }            public static void main(String[] args) throws IOException {          String content = "含有敏感词的测试";          BadWordsUtil.initbadWordsList();          List<String> badWordList = BadWordsUtil.searchBanWords(content);          if (badWordList.size() == 0){           System.out.println("没有找到敏感词！");          }else{           for(String s : badWordList){                  System.out.println("找到敏感词："+s);              }          }      }  }