Java实现敏感字过滤详解编程语言

static char[] charFirst; static HashMap String, ArrayList String map = new HashMap String, ArrayList String (); static HashMap String, String[] sortMap = new HashMap String, String[] static HashMap String, char[] charMap = new HashMap String, char[] static ArrayList String temp; static String key, value; int length; /** * 带参数的构造函数 * @param keys * 敏感词 * @param tContent * 需要过滤的内容 public SensitiveWordUtils(List String keys, String tContent) { for (String k : keys) { if (!first.contains(k.substring(0, 1))) { first.add(k.substring(0, 1)); length = k.length(); for (int i = 1; i length; i++) { key = k.substring(0, i); value = k.substring(i, i + 1); if (i == 1 !first.contains(key)) { first.add(key); // 有，添加 if (map.containsKey(key)) { if (!map.get(key).contains(value)) { map.get(key).add(value); // 没有添加 else { temp = new ArrayList String temp.add(value); map.put(key, temp); sortFirst = first.toArray(new String[first.size()]); Arrays.sort(sortFirst); // 排序 charFirst = new char[first.size()]; for (int i = 0; i charFirst.length; i++) { charFirst[i] = first.get(i).charAt(0); Arrays.sort(charFirst); // 排序 String[] sortValue; ArrayList String Map.Entry String, ArrayList String entry; Iterator Entry String, ArrayList String iter = map.entrySet() .iterator(); while (iter.hasNext()) { entry = (Map.Entry String, ArrayList String ) iter.next(); v = (ArrayList String ) entry.getValue(); sortValue = v.toArray(new String[v.size()]); Arrays.sort(sortValue); // 排序 sortMap.put(entry.getKey(), sortValue); char[] charValue; iter = map.entrySet().iterator(); while (iter.hasNext()) { entry = (Map.Entry String, ArrayList String ) iter.next(); v = (ArrayList String ) entry.getValue(); charValue = new char[v.size()]; for (int i = 0; i charValue.length; i++) { charValue[i] = v.get(i).charAt(0); Arrays.sort(charValue); // 排序 charMap.put(entry.getKey(), charValue); /** * 把敏感词替换成* * @param content * 需要过滤的内容 * @return 过滤完后的符合要求的内容 public String replace(String content) { String r = null, f, c = content; String replacedword = content; char g; char[] temps; int length = c.length(); for (int i = 0; i length - 1; i++) { g = c.charAt(i); // 二分查找 if (Arrays.binarySearch(charFirst, g) -1) { tag : for (int j = i + 1; j length; j++) { f = c.substring(i, j); g = c.charAt(j); temps = charMap.get(f); if (temps == null) { // 找到了 System.out.println("ok"); r = f; String str = ""; for (int m = 1; m = r.length(); m++) { str = str + "*"; replacedword = c.replace(r, str); c = replacedword; break tag; // 二分查找 if (Arrays.binarySearch(temps, g) -1) { if (j == length - 1) { // print("find!"); System.out.println("find!"); r = c.substring(i, j + 1); String str = ""; for (int m = 1; m = r.length(); m++) { str = str + "*"; replacedword = c.replace(r, str); c = replacedword; break tag; } else { // 没有找到了 break; return replacedword; }

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