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创新互联坚持“要么做到，要么别承诺”的工作理念，服务领域包括：做网站、网站建设、企业官网、英文网站、手机端网站、网站推广等服务，满足客户于互联网时代的焦作网站设计、移动媒体设计的需求，帮助企业找到有效的互联网解决方案。努力成为您成熟可靠的网络建设合作伙伴！ic class CheckStreamReader { //使用的数据： private static HashSet hash = new HashSet(); private byte[] fastCheck = new byte[char.MaxValue]; private BitArray charCheck = new BitArray(char.MaxValue); private int maxWordLength = 0; private int minWordLength = int.MaxValue; private static string[] badwords = { }; public CheckStreamReader() { if (hash == null || hash.Count <= 0) { //添加敏感词 string path = HttpContext.Current.Server.MapPath("~/config") + "/StreamReader.txt"; StreamReader sr = new StreamReader(path, Encoding.GetEncoding("utf-8")); string strText = sr.ReadToEnd(); badwords = strText.Split('|'); InitializationText(); } } //初始化数据的代码：将敏感词加入的hash表中 private void InitializationText() { foreach (string word in badwords) { maxWordLength = Math.Max(maxWordLength, word.Length); minWordLength = Math.Min(minWordLength, word.Length); for (int i = 0; i < 7 && i < word.Length; i++) { fastCheck[word[i]] |= (byte)(1 << i); } for (int i = 7; i < word.Length; i++) { fastCheck[word[i]] |= 0x80; } if (word.Length == 1) { charCheck[word[0]] = true; } else { hash.Add(word); } } } //判断是否包含脏字的代码： public bool HasBadWord(string text) { if (hash == null || hash.Count<=0) { string path = HttpContext.Current.Server.MapPath("~/" + ConfigurationManager.AppSettings["ConfigPath"]) + "/StreamReader.txt"; StreamReader sr = new StreamReader(path, Encoding.GetEncoding("utf-8")); string strText = sr.ReadToEnd(); badwords = strText.Split('|'); InitializationText(); } int index = 0; while (index < text.Length) { if ((fastCheck[text[index]] & 1) == 0) { while (index < text.Length - 1 && (fastCheck[text[++index]] & 1) == 0) ; } if (minWordLength == 1 && charCheck[text[index]]) { return true; } for (int j = 1; j <= Math.Min(maxWordLength, text.Length - index - 1); j++) { if ((fastCheck[text[index + j]] & (1 << Math.Min(j, 7))) == 0) { break; } if (j + 1 >= minWordLength) { string sub = text.Substring(index, j + 1); if (hash.Contains(sub)) { return true; } } } index++; } return false; } }
本文标题：C#添加敏感词-创新互联
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