javascript实现密码强度显示

前端技术 2023/09/08 JavaScript

密码强度显示和中文强弱显示

复制代码 代码如下:

<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">
<html>
  <head>
    <base href=\"<%=basePath%>\">
    <title>My JSP \'a.jsp\' starting page</title>
    <meta http-equiv=\"pragma\" content=\"no-cache\">
    <meta http-equiv=\"cache-control\" content=\"no-cache\">
    <meta http-equiv=\"expires\" content=\"0\">   
    <meta http-equiv=\"keywords\" content=\"keyword1,keyword2,keyword3\">
    <meta http-equiv=\"description\" content=\"This is my page\">
        <style type=\"text/css\">
    * {margin:0px;padding:0px;}
    .J_PasswordStatus{padding-bottom:0px;height:18px;}
    .status-bar{margin:0px;display:inline-block;width:80px;height:5px;padding:1px;border:1px solid #42BF26;background-color:white;vertical-align:middle;font-size:0;}
    .status-bar span{background-color:#42BF26;height:5px;display:inline-block;}
    </style>
  </head>
  <body>
    <input type=\"password\"  id=\"pwd1\" style=\"float:left;margin-top:5px;\" onkeyup=\"checkPassword();\"/>
        <div id=\"p_PasswordStatus\" class=\"J_PasswordStatus\"
            style=\"display: none; width: 300px;\">
            <span class=\"trigger\">密码强度： </span>
            <span class=\"status-bar\" style=\"text-indent: 0px;\">
            <span style=\"line-height: 5px;\">  </span>
            </span>
            <span class=\"status-result\"></span>
        </div>
  </body>
</html>
<script type=\"text/javascript\" src=\"jquery-1.7.2.min.js\"></script>
<script type=\"text/javascript\">
function checkPassword(){
    var pwd = $(\"#pwd1\").val();
    gPasswdStatus(pwd,\'p_PasswordStatus\');
    }
function gPasswdStatus(value,id){
    var status = $(\"#\"+id);
    var result = $(\"#\"+id).find(\".status-result\")[0];
    var bar = $(\"#\"+id).find(\".status-bar span\");
    if (value === \"\") {
        status.css(\"display\",\"none\");
    } else {
        var score = gCheckPassword(value);
        bar.css(\"width\",score + \"%\");
        var resultDesp = gGetResultDesp(score);
        result.innerHTML = resultDesp;
        status.css(\"display\",\"block\");
    }
}
/**
 * 检验密码强度并返回得分
 *
 * @param {}
 *            password
 * @return {Number}
 */
function gCheckPassword(password) {
    var _score = 0;
    if (!password) {
        return 0
    }
    if (password.length <= 4) {
        _score += 5
    } else {
        if (password.length >= 5 && password.length <= 7) {
            _score += 10
        } else {
            if (password.length >= 8) {
                _score += 25
            }
        }
    }
    var _UpperCount = (password.match(/[A-Z]/g) || []).length;
    var _LowerCount = (password.match(/[a-z]/g) || []).length;
    var _LowerUpperCount = _UpperCount + _LowerCount;
    if (_UpperCount && _LowerCount) {
        _score += 20
    } else {
        if (_UpperCount || _LowerCount) {
            _score += 10
        }
    }
    var _NumberCount = (password.match(/[\\d]/g, \"\") || []).length;
    if (_NumberCount > 0 && _NumberCount <= 2) {
        _score += 10
    } else {
        if (_NumberCount >= 3) {
            _score += 20
        }
    }
    var _CharacterCount = (password.match(/[!@#$%^&*?_\\.\\-~]/g) || []).length;
    if (_CharacterCount == 1) {
        _score += 10
    } else {
        if (_CharacterCount > 1) {
            _score += 25
        }
    }
    if (_NumberCount && (_UpperCount && _LowerCount)
            && _CharacterCount) {
        _score += 5
    } else {
        if (_NumberCount && _LowerUpperCount && _CharacterCount) {
            _score += 3
        } else {
            if (_NumberCount && _LowerUpperCount) {
                _score += 2
            }
        }
    }
    return _score
}
 /**
  * 根据密码强度得分返回密码强弱度中文提示
  *
  * @param {}
  *            score
  * @return {String}
  */
 function gGetResultDesp(score) {
    if (score <= 5) {
        return \"\\u592a\\u77ed\"
    } else {
    if (score > 5 && score < 20) {
        return \"\\u5f31\"
        } else {
        if (score >= 20 && score < 60) {
            return \"\\u4e2d\"
        } else {
            if (score >= 60) {
                return \"\\u5f3a\"
            } else {
                return \"\"
            }
            }
        }
    }
 }
</script>

以上所述就是本文给大家分享的全部内容了，希望对大家熟练掌握javascript能够有所帮助。

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