字符串处理--过滤

public static String splitAndFilterString(String input, int length) {???
??????? if (input == null || input.trim().equals("")) {???
??????????? return "";???
???????? }???
??????? // 去掉所有html元素,???
???????? String str = input.replaceAll("\\&[a-zA-Z]{1,10};", "").replaceAll(???
??????????????? "<[^>]*>", "");???
???????? str = str.replaceAll("[(/>)<]", "");???
??????? int len = str.length();???
??????? if (len <= length) {???
??????????? return str;???
???????? } else {???
???????????? str = str.substring(0, length);???
???????????? str += "......";???
???????? }???
??????? return str;???
???? }??