使用正则表达式去掉java字符串中的html标签

/**
* 去除字符串中的html标签，返回指定的长度
*/
public String htmlTagFilter(String inputStr, int len) {
        if (inputStr == null || "".equals(inputStr.trim())) {
                return "";
        }
        String outStr = inputStr.replaceAll("\\&[a-zA-Z]{1,10};", "") //去除类似< >  的字串
                                .replaceAll("<[a-zA-Z]+[1-9]?[^><]*>", "") //去除开始标签及没有结束标签的标签
                                .replaceAll("</[a-zA-Z]+[1-9]?>", ""); //去除结束标签
        if (outStr.length() > len) {
                outStr = outStr.substring(0,length);
                outStr += "......";
        }
        return outStr;
}